mirror of https://gitee.com/openkylin/linux.git
13749 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Matthew Wilcox
|
f6bb2a2c0b |
xarray: add the xa_lock to the radix_tree_root
This results in no change in structure size on 64-bit machines as it fits in the padding between the gfp_t and the void *. 32-bit machines will grow the structure from 8 to 12 bytes. Almost all radix trees are protected with (at least) a spinlock, so as they are converted from radix trees to xarrays, the data structures will shrink again. Initialising the spinlock requires a name for the benefit of lockdep, so RADIX_TREE_INIT() now needs to know the name of the radix tree it's initialising, and so do IDR_INIT() and IDA_INIT(). Also add the xa_lock() and xa_unlock() family of wrappers to make it easier to use the lock. If we could rely on -fplan9-extensions in the compiler, we could avoid all of this syntactic sugar, but that wasn't added until gcc 4.6. Link: http://lkml.kernel.org/r/20180313132639.17387-8-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Matthew Wilcox
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fa290cda10 |
radix tree: use GFP_ZONEMASK bits of gfp_t for flags
Patch series "XArray", v9. (First part thereof). This patchset is, I believe, appropriate for merging for 4.17. It contains the XArray implementation, to eventually replace the radix tree, and converts the page cache to use it. This conversion keeps the radix tree and XArray data structures in sync at all times. That allows us to convert the page cache one function at a time and should allow for easier bisection. Other than renaming some elements of the structures, the data structures are fundamentally unchanged; a radix tree walk and an XArray walk will touch the same number of cachelines. I have changes planned to the XArray data structure, but those will happen in future patches. Improvements the XArray has over the radix tree: - The radix tree provides operations like other trees do; 'insert' and 'delete'. But what most users really want is an automatically resizing array, and so it makes more sense to give users an API that is like an array -- 'load' and 'store'. We still have an 'insert' operation for users that really want that semantic. - The XArray considers locking as part of its API. This simplifies a lot of users who formerly had to manage their own locking just for the radix tree. It also improves code generation as we can now tell RCU that we're holding a lock and it doesn't need to generate as much fencing code. The other advantage is that tree nodes can be moved (not yet implemented). - GFP flags are now parameters to calls which may need to allocate memory. The radix tree forced users to decide what the allocation flags would be at creation time. It's much clearer to specify them at allocation time. - Memory is not preloaded; we don't tie up dozens of pages on the off chance that the slab allocator fails. Instead, we drop the lock, allocate a new node and retry the operation. We have to convert all the radix tree, IDA and IDR preload users before we can realise this benefit, but I have not yet found a user which cannot be converted. - The XArray provides a cmpxchg operation. The radix tree forces users to roll their own (and at least four have). - Iterators take a 'max' parameter. That simplifies many users and will reduce the amount of iteration done. - Iteration can proceed backwards. We only have one user for this, but since it's called as part of the pagefault readahead algorithm, that seemed worth mentioning. - RCU-protected pointers are not exposed as part of the API. There are some fun bugs where the page cache forgets to use rcu_dereference() in the current codebase. - Value entries gain an extra bit compared to radix tree exceptional entries. That gives us the extra bit we need to put huge page swap entries in the page cache. - Some iterators now take a 'filter' argument instead of having separate iterators for tagged/untagged iterations. The page cache is improved by this: - Shorter, easier to read code - More efficient iterations - Reduction in size of struct address_space - Fewer walks from the top of the data structure; the XArray API encourages staying at the leaf node and conducting operations there. This patch (of 8): None of these bits may be used for slab allocations, so we can use them as radix tree flags as long as we mask them off before passing them to the slab allocator. Move the IDR flag from the high bits to the GFP_ZONEMASK bits. Link: http://lkml.kernel.org/r/20180313132639.17387-3-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Acked-by: Jeff Layton <jlayton@kernel.org> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexey Dobriyan
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1f5bd05476 |
proc: selftests: test /proc/uptime
The only tests I could come up with for /proc/uptime are: - test that values increase monotonically for 1 second, - bounce around CPUs and test the same thing. Avoid glibc like plague for affinity given patches like this: https://marc.info/?l=linux-kernel&m=152130031912594&w=4 Link: http://lkml.kernel.org/r/20180317165235.GB3445@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexey Dobriyan
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05c3f29283 |
proc: selftests: shotgun testing of read/readdir/readlink/write
Perform reads with nearly everything in /proc, and some writing as well. Hopefully memleak checkers and KASAN will find something. [adobriyan@gmail.com: /proc/kmsg can and will block if read under root] Link: http://lkml.kernel.org/r/20180316232147.GA20146@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> [adobriyan@gmail.com: /proc/sysrq-trigger lives on the ground floor] Link: http://lkml.kernel.org/r/20180317164911.GA3445@avx2 Link: http://lkml.kernel.org/r/20180315201251.GA12396@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexey Dobriyan
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5de3d401b7 |
proc: add selftest for last field of /proc/loadavg
Test fork counter formerly known as ->last_pid, the only part of /proc/loadavg which can be tested. Testing in init pid namespace is not reliable because of background activity. Link: http://lkml.kernel.org/r/20180311152241.GA26247@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexey Dobriyan
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35318db566 |
proc: fix /proc/*/map_files lookup some more
I totally forgot that _parse_integer() accepts arbitrary amount of leading zeroes leading to the following lookups: OK # readlink /proc/1/map_files/56427ecba000-56427eddc000 /lib/systemd/systemd bogus # readlink /proc/1/map_files/00000000000056427ecba000-56427eddc000 /lib/systemd/systemd # readlink /proc/1/map_files/56427ecba000-00000000000056427eddc000 /lib/systemd/systemd Link: http://lkml.kernel.org/r/20180303215130.GA23480@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Pavel Emelyanov <xemul@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexey Dobriyan
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c4219edf1d |
proc: test /proc/self/syscall
Read from /proc/self/syscall should yield read system call and correct args in the output as current is reading /proc/self/syscall. Link: http://lkml.kernel.org/r/20180226212145.GB742@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexey Dobriyan
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9cd6565558 |
proc: test /proc/self/wchan
This patch starts testing /proc. Many more tests to come (I promise). Read from /proc/self/wchan should always return "0" as current is in TASK_RUNNING state while reading /proc/self/wchan. Link: http://lkml.kernel.org/r/20180226212006.GA742@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Satoru Takeuchi
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6cd110a91f |
ktest: Take submenu into account for grub2 menus
grub-reboot selects the submenu's first menuentry (title is "1>0") rather than ktest's
menuentry (title is "2") by mistake.
===
$ sudo cat /boot/grub/grub.cfg | grep -E "^menuentry|^submenu"
...
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option '...' {
...
submenu 'Advanced options for Ubuntu' $menuentry_id_option '...' {
...
menuentry 'ktest' {
...
===
Correct it by taking submenu entries into account in get_grub2_index().
Link: http://lkml.kernel.org/r/87poaje4as.wl-satoru.takeuchi@gmail.com
Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Linus Torvalds
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2a56bb596b |
New features:
- Tom Zanussi's extended histogram work
This adds the synthetic events to have histograms from multiple event data
Adds triggers "onmatch" and "onmax" to call the synthetic events
Several updates to the histogram code from this
- Allow way to nest ring buffer calls in the same context
- Allow absolute time stamps in ring buffer
- Rewrite of filter code parsing based on Al Viro's suggestions
- Setting of trace_clock to global if TSC is unstable (on boot)
- Better OOM handling when allocating large ring buffers
- Added initcall tracepoints (consolidated initcall_debug code with them)
And other various fixes and clean ups
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Merge tag 'trace-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"New features:
- Tom Zanussi's extended histogram work.
This adds the synthetic events to have histograms from multiple
event data Adds triggers "onmatch" and "onmax" to call the
synthetic events Several updates to the histogram code from this
- Allow way to nest ring buffer calls in the same context
- Allow absolute time stamps in ring buffer
- Rewrite of filter code parsing based on Al Viro's suggestions
- Setting of trace_clock to global if TSC is unstable (on boot)
- Better OOM handling when allocating large ring buffers
- Added initcall tracepoints (consolidated initcall_debug code with
them)
And other various fixes and clean ups"
* tag 'trace-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (68 commits)
init: Have initcall_debug still work without CONFIG_TRACEPOINTS
init, tracing: Have printk come through the trace events for initcall_debug
init, tracing: instrument security and console initcall trace events
init, tracing: Add initcall trace events
tracing: Add rcu dereference annotation for test func that touches filter->prog
tracing: Add rcu dereference annotation for filter->prog
tracing: Fixup logic inversion on setting trace_global_clock defaults
tracing: Hide global trace clock from lockdep
ring-buffer: Add set/clear_current_oom_origin() during allocations
ring-buffer: Check if memory is available before allocation
lockdep: Add print_irqtrace_events() to __warn
vsprintf: Do not preprocess non-dereferenced pointers for bprintf (%px and %pK)
tracing: Uninitialized variable in create_tracing_map_fields()
tracing: Make sure variable string fields are NULL-terminated
tracing: Add action comparisons when testing matching hist triggers
tracing: Don't add flag strings when displaying variable references
tracing: Fix display of hist trigger expressions containing timestamps
ftrace: Drop a VLA in module_exists()
tracing: Mention trace_clock=global when warning about unstable clocks
tracing: Default to using trace_global_clock if sched_clock is unstable
...
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Linus Torvalds
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9f3a0941fb |
libnvdimm for 4.17
* A rework of the filesytem-dax implementation provides for detection of
unmap operations (truncate / hole punch) colliding with in-progress
device-DMA. A fix for these collisions remains a work-in-progress
pending resolution of truncate latency and starvation regressions.
* The of_pmem driver expands the users of libnvdimm outside of x86 and
ACPI to describe an implementation of persistent memory on PowerPC with
Open Firmware / Device tree.
* Address Range Scrub (ARS) handling is completely rewritten to account for
the fact that ARS may run for 100s of seconds and there is no platform
defined way to cancel it. ARS will now no longer block namespace
initialization.
* The NVDIMM Namespace Label implementation is updated to handle label
areas as small as 1K, down from 128K.
* Miscellaneous cleanups and updates to unit test infrastructure.
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Merge tag 'libnvdimm-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"This cycle was was not something I ever want to repeat as there were
several late changes that have only now just settled.
Half of the branch up to commit
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Colin Ian King
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4d5f26ee31 |
kvm: selftests: fix spelling mistake: "divisable" and "divisible"
Trivial fix to spelling mistakes in comment and message text Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Rasmus Villemoes
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9564a8cf42 |
Kbuild: fix # escaping in .cmd files for future Make
I tried building using a freshly built Make (4.2.1-69-g8a731d1), but
already the objtool build broke with
orc_dump.c: In function ‘orc_dump’:
orc_dump.c:106:2: error: ‘elf_getshnum’ is deprecated [-Werror=deprecated-declarations]
if (elf_getshdrnum(elf, &nr_sections)) {
Turns out that with that new Make, the backslash was not removed, so cpp
didn't see a #include directive, grep found nothing, and
-DLIBELF_USE_DEPRECATED was wrongly put in CFLAGS.
Now, that new Make behaviour is documented in their NEWS file:
* WARNING: Backward-incompatibility!
Number signs (#) appearing inside a macro reference or function invocation
no longer introduce comments and should not be escaped with backslashes:
thus a call such as:
foo := $(shell echo '#')
is legal. Previously the number sign needed to be escaped, for example:
foo := $(shell echo '\#')
Now this latter will resolve to "\#". If you want to write makefiles
portable to both versions, assign the number sign to a variable:
C := \#
foo := $(shell echo '$C')
This was claimed to be fixed in 3.81, but wasn't, for some reason.
To detect this change search for 'nocomment' in the .FEATURES variable.
This also fixes up the two make-cmd instances to replace # with $(pound)
rather than with \#. There might very well be other places that need
similar fixup in preparation for whatever future Make release contains
the above change, but at least this builds an x86_64 defconfig with the
new make.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=197847
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Linus Torvalds
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d8312a3f61 |
ARM:
- VHE optimizations
- EL2 address space randomization
- speculative execution mitigations ("variant 3a", aka execution past invalid
privilege register access)
- bugfixes and cleanups
PPC:
- improvements for the radix page fault handler for HV KVM on POWER9
s390:
- more kvm stat counters
- virtio gpu plumbing
- documentation
- facilities improvements
x86:
- support for VMware magic I/O port and pseudo-PMCs
- AMD pause loop exiting
- support for AMD core performance extensions
- support for synchronous register access
- expose nVMX capabilities to userspace
- support for Hyper-V signaling via eventfd
- use Enlightened VMCS when running on Hyper-V
- allow userspace to disable MWAIT/HLT/PAUSE vmexits
- usual roundup of optimizations and nested virtualization bugfixes
Generic:
- API selftest infrastructure (though the only tests are for x86 as of now)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"ARM:
- VHE optimizations
- EL2 address space randomization
- speculative execution mitigations ("variant 3a", aka execution past
invalid privilege register access)
- bugfixes and cleanups
PPC:
- improvements for the radix page fault handler for HV KVM on POWER9
s390:
- more kvm stat counters
- virtio gpu plumbing
- documentation
- facilities improvements
x86:
- support for VMware magic I/O port and pseudo-PMCs
- AMD pause loop exiting
- support for AMD core performance extensions
- support for synchronous register access
- expose nVMX capabilities to userspace
- support for Hyper-V signaling via eventfd
- use Enlightened VMCS when running on Hyper-V
- allow userspace to disable MWAIT/HLT/PAUSE vmexits
- usual roundup of optimizations and nested virtualization bugfixes
Generic:
- API selftest infrastructure (though the only tests are for x86 as
of now)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (174 commits)
kvm: x86: fix a prototype warning
kvm: selftests: add sync_regs_test
kvm: selftests: add API testing infrastructure
kvm: x86: fix a compile warning
KVM: X86: Add Force Emulation Prefix for "emulate the next instruction"
KVM: X86: Introduce handle_ud()
KVM: vmx: unify adjacent #ifdefs
x86: kvm: hide the unused 'cpu' variable
KVM: VMX: remove bogus WARN_ON in handle_ept_misconfig
Revert "KVM: X86: Fix SMRAM accessing even if VM is shutdown"
kvm: Add emulation for movups/movupd
KVM: VMX: raise internal error for exception during invalid protected mode state
KVM: nVMX: Optimization: Dont set KVM_REQ_EVENT when VMExit with nested_run_pending
KVM: nVMX: Require immediate-exit when event reinjected to L2 and L1 event pending
KVM: x86: Fix misleading comments on handling pending exceptions
KVM: x86: Rename interrupt.pending to interrupt.injected
KVM: VMX: No need to clear pending NMI/interrupt on inject realmode interrupt
x86/kvm: use Enlightened VMCS when running on Hyper-V
x86/hyper-v: detect nested features
x86/hyper-v: define struct hv_enlightened_vmcs and clean field bits
...
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Dan Williams
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1ed41b5696 | Merge branch 'for-4.17/libnvdimm' into libnvdimm-for-next | |
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Sandipan Das
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fcbd8fa446 |
perf tests clang: Fix function name for clang IR test
As stated in tests/llvm-src-base.c, the name of the bpf function should
be "bpf_func__SyS_epoll_pwait" but this clang test fails as it tries to
lookup "bpf_func__SyS_epoll_wait".
Before applying patch:
55: builtin clang support :
55.1: builtin clang compile C source to IR : FAILED!
55.2: builtin clang compile C source to ELF object : Skip
After applying patch:
55: builtin clang support :
55.1: builtin clang compile C source to IR : Ok
55.2: builtin clang compile C source to ELF object : Ok
Signed-off-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Fixes:
|
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Sandipan Das
|
7854e499f3 |
perf clang: Add support for recent clang versions
The clang API calls used by perf have changed in recent releases and
builds succeed with libclang-3.9 only. This introduces compatibility
with libclang-4.0 and above.
Without this patch, we will see the following compilation errors with
libclang-4.0+:
util/c++/clang.cpp: In function ‘clang::CompilerInvocation* perf::createCompilerInvocation(llvm::opt::ArgStringList, llvm::StringRef&, clang::DiagnosticsEngine&)’:
util/c++/clang.cpp:62:33: error: ‘IK_C’ was not declared in this scope
Opts.Inputs.emplace_back(Path, IK_C);
^~~~
util/c++/clang.cpp: In function ‘std::unique_ptr<llvm::Module> perf::getModuleFromSource(llvm::opt::ArgStringList, llvm::StringRef, llvm::IntrusiveRefCntPtr<clang::vfs::FileSystem>)’:
util/c++/clang.cpp:75:26: error: no matching function for call to ‘clang::CompilerInstance::setInvocation(clang::CompilerInvocation*)’
Clang.setInvocation(&*CI);
^
In file included from util/c++/clang.cpp:14:0:
/usr/include/clang/Frontend/CompilerInstance.h:231:8: note: candidate: void clang::CompilerInstance::setInvocation(std::shared_ptr<clang::CompilerInvocation>)
void setInvocation(std::shared_ptr<CompilerInvocation> Value);
^~~~~~~~~~~~~
Committer testing:
Tested on Fedora 27 after installing the clang-devel and llvm-devel
packages, versions:
# rpm -qa | egrep llvm\|clang
llvm-5.0.1-6.fc27.x86_64
clang-libs-5.0.1-5.fc27.x86_64
clang-5.0.1-5.fc27.x86_64
clang-tools-extra-5.0.1-5.fc27.x86_64
llvm-libs-5.0.1-6.fc27.x86_64
llvm-devel-5.0.1-6.fc27.x86_64
clang-devel-5.0.1-5.fc27.x86_64
#
Make sure you don't have some older version lying around in /usr/local,
etc, then:
$ make LIBCLANGLLVM=1 -C tools/perf install-bin
And in the end perf will be linked agains these libraries:
# ldd ~/bin/perf | egrep -i llvm\|clang
libclangAST.so.5 => /lib64/libclangAST.so.5 (0x00007f8bb2eb4000)
libclangBasic.so.5 => /lib64/libclangBasic.so.5 (0x00007f8bb29e3000)
libclangCodeGen.so.5 => /lib64/libclangCodeGen.so.5 (0x00007f8bb23f7000)
libclangDriver.so.5 => /lib64/libclangDriver.so.5 (0x00007f8bb2060000)
libclangFrontend.so.5 => /lib64/libclangFrontend.so.5 (0x00007f8bb1d06000)
libclangLex.so.5 => /lib64/libclangLex.so.5 (0x00007f8bb1a3e000)
libclangTooling.so.5 => /lib64/libclangTooling.so.5 (0x00007f8bb17d4000)
libclangEdit.so.5 => /lib64/libclangEdit.so.5 (0x00007f8bb15c5000)
libclangSema.so.5 => /lib64/libclangSema.so.5 (0x00007f8bb0cc9000)
libclangAnalysis.so.5 => /lib64/libclangAnalysis.so.5 (0x00007f8bb0a23000)
libclangParse.so.5 => /lib64/libclangParse.so.5 (0x00007f8bb0725000)
libclangSerialization.so.5 => /lib64/libclangSerialization.so.5 (0x00007f8bb039a000)
libLLVM-5.0.so => /lib64/libLLVM-5.0.so (0x00007f8bace98000)
libclangASTMatchers.so.5 => /lib64/../lib64/libclangASTMatchers.so.5 (0x00007f8bab735000)
libclangFormat.so.5 => /lib64/../lib64/libclangFormat.so.5 (0x00007f8bab4b2000)
libclangRewrite.so.5 => /lib64/../lib64/libclangRewrite.so.5 (0x00007f8bab2a1000)
libclangToolingCore.so.5 => /lib64/../lib64/libclangToolingCore.so.5 (0x00007f8bab08e000)
#
Signed-off-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Fixes:
|
|
|
Sandipan Das
|
c2fb54a183 |
perf tools: Fix perf builds with clang support
For libclang, some distro packages provide static libraries (.a) while
some provide shared libraries (.so). Currently, perf code can only be
linked with static libraries. This makes perf build possible for both
cases.
Signed-off-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Fixes:
|
|
|
Arnaldo Carvalho de Melo
|
ad0902e0c4 |
perf tools: No need to include namespaces.h in util.h
The only thing that is needed there is a forward declaration for 'struct nsinfo', so disentanble this, which in turns allows built-in clang builds, i.e. 'make LIBCLANGLLVM=1 -C tools/perf'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Sandipan Das <sandipan@linux.vnet.ibm.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-vq26rsuwq1cqylpcyvq89c84@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Steven Rostedt (VMware)
|
c2d84ddb33 |
ktest.pl: Add MAIL_COMMAND option to define how to send email
Allow the user to override the default way to send email. This will allow the user to add their own mailer and format for sending email. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
59f89eb1e3 |
ktest.pl: Use run_command to execute sending mail
Instead of open coding system() call, use run_command which will log the sending of email as well. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
255769a17b |
ktest.pl: Allow dodie be recursive
If dodie cause a function that itself will call dodie, then be able to handle that. This will allow dodie functions to call run_command, which could possibly call dodie. If dodie is called again, simply ignore it. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
8604b0c4bc |
ktest.pl: Kill test if mailer is not supported
If the user specifies a MAILTO, but the MAILER is not supported, then kill the test. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
be1546b87f |
ktest.pl: Add MAIL_PATH option to define where to find the mailer
The option MAIL_PATH lets the user decide how to find the mailer they are using. For example, sendmail is usually located in /usr/sbin but is not always in the path of non admin users. Have ktest look through the user's PATH environment variable (adding /usr/sbin) as well, but if that's not good enough, allow the user to define where to find the mailer. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> squash to mail exec Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Linus Torvalds
|
49a695ba72 |
powerpc updates for 4.17
Notable changes:
- Support for 4PB user address space on 64-bit, opt-in via mmap().
- Removal of POWER4 support, which was accidentally broken in 2016 and no one
noticed, and blocked use of some modern instructions.
- Workarounds so that the hypervisor can enable Transactional Memory on Power9.
- A series to disable the DAWR (Data Address Watchpoint Register) on Power9.
- More information displayed in the meltdown/spectre_v1/v2 sysfs files.
- A vpermxor (Power8 Altivec) implementation for the raid6 Q Syndrome.
- A big series to make the allocation of our pacas (per cpu area), kernel page
tables, and per-cpu stacks NUMA aware when using the Radix MMU on Power9.
And as usual many fixes, reworks and cleanups.
Thanks to:
Aaro Koskinen, Alexandre Belloni, Alexey Kardashevskiy, Alistair Popple, Andy
Shevchenko, Aneesh Kumar K.V, Anshuman Khandual, Balbir Singh, Benjamin
Herrenschmidt, Christophe Leroy, Christophe Lombard, Cyril Bur, Daniel Axtens,
Dave Young, Finn Thain, Frederic Barrat, Gustavo Romero, Horia Geantă,
Jonathan Neuschäfer, Kees Cook, Larry Finger, Laurent Dufour, Laurent Vivier,
Logan Gunthorpe, Madhavan Srinivasan, Mark Greer, Mark Hairgrove, Markus
Elfring, Mathieu Malaterre, Matt Brown, Matt Evans, Mauricio Faria de
Oliveira, Michael Neuling, Naveen N. Rao, Nicholas Piggin, Paul Mackerras,
Philippe Bergheaud, Ram Pai, Rob Herring, Sam Bobroff, Segher Boessenkool,
Simon Guo, Simon Horman, Stewart Smith, Sukadev Bhattiprolu, Suraj Jitindar
Singh, Thiago Jung Bauermann, Vaibhav Jain, Vaidyanathan Srinivasan, Vasant
Hegde, Wei Yongjun.
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Merge tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- Support for 4PB user address space on 64-bit, opt-in via mmap().
- Removal of POWER4 support, which was accidentally broken in 2016
and no one noticed, and blocked use of some modern instructions.
- Workarounds so that the hypervisor can enable Transactional Memory
on Power9.
- A series to disable the DAWR (Data Address Watchpoint Register) on
Power9.
- More information displayed in the meltdown/spectre_v1/v2 sysfs
files.
- A vpermxor (Power8 Altivec) implementation for the raid6 Q
Syndrome.
- A big series to make the allocation of our pacas (per cpu area),
kernel page tables, and per-cpu stacks NUMA aware when using the
Radix MMU on Power9.
And as usual many fixes, reworks and cleanups.
Thanks to: Aaro Koskinen, Alexandre Belloni, Alexey Kardashevskiy,
Alistair Popple, Andy Shevchenko, Aneesh Kumar K.V, Anshuman Khandual,
Balbir Singh, Benjamin Herrenschmidt, Christophe Leroy, Christophe
Lombard, Cyril Bur, Daniel Axtens, Dave Young, Finn Thain, Frederic
Barrat, Gustavo Romero, Horia Geantă, Jonathan Neuschäfer, Kees Cook,
Larry Finger, Laurent Dufour, Laurent Vivier, Logan Gunthorpe,
Madhavan Srinivasan, Mark Greer, Mark Hairgrove, Markus Elfring,
Mathieu Malaterre, Matt Brown, Matt Evans, Mauricio Faria de Oliveira,
Michael Neuling, Naveen N. Rao, Nicholas Piggin, Paul Mackerras,
Philippe Bergheaud, Ram Pai, Rob Herring, Sam Bobroff, Segher
Boessenkool, Simon Guo, Simon Horman, Stewart Smith, Sukadev
Bhattiprolu, Suraj Jitindar Singh, Thiago Jung Bauermann, Vaibhav
Jain, Vaidyanathan Srinivasan, Vasant Hegde, Wei Yongjun"
* tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (207 commits)
powerpc/64s/idle: Fix restore of AMOR on POWER9 after deep sleep
powerpc/64s: Fix POWER9 DD2.2 and above in cputable features
powerpc/64s: Fix pkey support in dt_cpu_ftrs, add CPU_FTR_PKEY bit
powerpc/64s: Fix dt_cpu_ftrs to have restore_cpu clear unwanted LPCR bits
Revert "powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead"
powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo}
powerpc: io.h: move iomap.h include so that it can use readq/writeq defs
cxl: Fix possible deadlock when processing page faults from cxllib
powerpc/hw_breakpoint: Only disable hw breakpoint if cpu supports it
powerpc/mm/radix: Update command line parsing for disable_radix
powerpc/mm/radix: Parse disable_radix commandline correctly.
powerpc/mm/hugetlb: initialize the pagetable cache correctly for hugetlb
powerpc/mm/radix: Update pte fragment count from 16 to 256 on radix
powerpc/mm/keys: Update documentation and remove unnecessary check
powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead
powerpc/64s/idle: Consolidate power9_offline_stop()/power9_idle_stop()
powerpc/powernv: Always stop secondaries before reboot/shutdown
powerpc: hard disable irqs in smp_send_stop loop
powerpc: use NMI IPI for smp_send_stop
powerpc/powernv: Fix SMT4 forcing idle code
...
|
|
|
Linus Torvalds
|
fc22e19a11 |
linux-kselftest-4.17-rc1
This Kselftest update for 4.17-rc1 consists of:
- Test build error fixes.
- Fixes to prevent intel_pstate from building on non-x86 systems.
- New test for ion with vgem driver.
- Change to print the test name to /dev/kmsg to add context to kernel
failures if any uncovered from running the test.
- Kselftest framework enhancements to add KSFT_TAP_LEVEL environment
variable to prevent nested TAP headers being printed in the Kselftest
output. Nested TAP13 headers could cause problems for some parsers.
This change suppresses the nested headers from test programs and test
shell scripts with changes to framework and Makefiles without changing
the tests.
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Merge tag 'linux-kselftest-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
"This Kselftest update for 4.17-rc1 consists of:
- Test build error fixes
- Fixes to prevent intel_pstate from building on non-x86 systems.
- New test for ion with vgem driver.
- Change to print the test name to /dev/kmsg to add context to kernel
failures if any uncovered from running the test.
- Kselftest framework enhancements to add KSFT_TAP_LEVEL environment
variable to prevent nested TAP headers being printed in the
Kselftest output.
Nested TAP13 headers could cause problems for some parsers. This
change suppresses the nested headers from test programs and test
shell scripts with changes to framework and Makefiles without
changing the tests"
* tag 'linux-kselftest-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/intel_pstate: Fix build rule for x86
selftests: Print the test we're running to /dev/kmsg
selftests/seccomp: Allow get_metadata to XFAIL
selftests/android/ion: Makefile: fix build error
selftests: futex Makefile add top level TAP header echo to RUN_TESTS
selftests: Makefile set KSFT_TAP_LEVEL to prevent nested TAP headers
selftests: lib.mk set KSFT_TAP_LEVEL to prevent nested TAP headers
selftests: kselftest framework: add handling for TAP header level
selftests: ion: Add simple test with the vgem driver
selftests: ion: Remove some prints
|
|
|
Linus Torvalds
|
016c6f25d1 |
fw_cfg, vhost: features fixes
This cleans up the qemu fw cfg device driver. On top of this, vmcore is dumped there on crash to help debugging witH kASLR enabled. Also included are some fixes in vhost. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- iQEcBAABAgAGBQJaxYDNAAoJECgfDbjSjVRpHA8IAKrzyI2rB5KCn5Obo/SwgO9k 7z6FBw+QMWXUwnJGBjt7OFber3LIah0oLh39puohrKFo/OkjSZWSqBWZp5I43lHb sijflF2QuZxWJvCg9GQswhVSmpouwKgFI3mQYqrX+T/MQxeozT0eAdc0TIX4OOYq 3gUtpgw9VZ1FEKKHgHv2ZWsiiN3QwVqSrR2QzS3hE+FZl8I1ElTRxq0evsb+d80U Ybqbq3QcmAQms6isQyqqmAphOvi7JlHDQAWfsXQByY48cPc+oXkG6iS+jbSFJ2Fg /YStUDmyMRxvAxdEVH8ZytigbdzAl8kAOhWKhhH/j4/nlHpT/udLm+MqIEAacYQ= =PGTs -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull fw_cfg, vhost updates from Michael Tsirkin: "This cleans up the qemu fw cfg device driver. On top of this, vmcore is dumped there on crash to help debugging with kASLR enabled. Also included are some fixes in vhost" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vhost: add vsock compat ioctl vhost: fix vhost ioctl signature to build with clang fw_cfg: write vmcoreinfo details crash: export paddr_vmcoreinfo_note() fw_cfg: add DMA register fw_cfg: add a public uapi header fw_cfg: handle fw_cfg_read_blob() error fw_cfg: remove inline from fw_cfg_read_blob() fw_cfg: fix sparse warnings around FW_CFG_FILE_DIR read fw_cfg: fix sparse warning reading FW_CFG_ID fw_cfg: fix sparse warnings with fw_cfg_file fw_cfg: fix sparse warnings in fw_cfg_sel_endianness() ptr_ring: fix build |
|
|
Steven Rostedt (VMware)
|
f5ef488557 |
ktest.pl: No need to print no mailer is specified when mailto is not
If the user doesn't want to send mail, then don't bother them with output that says they didn't specify a mailer. That can be annoying. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Tim Tianyang Chen
|
eaaa1e283a |
Ktest: add email options to sample.config
A block of email options is added under the optional config section. Link: http://lkml.kernel.org/r/1522094884-22718-5-git-send-email-tianyang.chen@oracle.com Suggested-by: Dhaval Giani <dhaval.giani@oracle.com> Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Tim Tianyang Chen
|
df46fce692 |
Ktest: Use dodie for critical falures
Users should get emails when the script dies because of a critical failure. Critical failures are defined as any errors that could abnormally terminate the script. In order to add email support, this patch converts all die() to dodie() except: * when '-v' is used as an option to get the version of the script. * in Sig-Int handeler because it's not a fatal error to cancel the script. * errors happen during parsing config Link: http://lkml.kernel.org/r/1522094884-22718-4-git-send-email-tianyang.chen@oracle.com Suggested-by: Dhaval Giani <dhaval.giani@oracle.com> Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Tim Tianyang Chen
|
92db453e7e |
Ktest: Add SigInt handling
User can cancel tests and specify handler's behavior using option 'EMAIL_WHEN_CANCELED'. Link: http://lkml.kernel.org/r/1522094884-22718-3-git-send-email-tianyang.chen@oracle.com Suggested-by: Dhaval Giani <dhaval.giani@oracle.com> Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Tim Tianyang Chen
|
2ceb2d85b6 |
Ktest: Add email support
Users can define optional variables to get email notifications. Ktest can send emails when the script: * was started * failed with fatal errors and called dodie() * completed all testing Users have to setup the mailer provided in config prior to using this script. Supported mailers: mailx, mail, sendmail mailer specific routines are _sendmail_send(), _mailx_send() Link: http://lkml.kernel.org/r/1522094884-22718-2-git-send-email-tianyang.chen@oracle.com Suggested-by: Dhaval Giani <dhaval.giani@oracle.com> Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
5a57299a1f |
ktest.pl: Detect if a config-bisect was interrupted
If a config-bisect was interrupted, then allow the user to continue, or restart a new config-bisect. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
40667fb5fd |
ktest.pl: Make finding config-bisect.pl dynamic
Just looking for config-bisect.pl in the source tree can be risky,
especially, if the source tree being tested doesn't have config-bisect.pl in
place. Instead, allow the user to set where to find config-bisect.pl with a
new option CONFIG_BISECT_EXEC.
If this option is not set, by default, ktest.pl will look for
config-bisect.pl in the following locations:
`pwd`/config-bisect.pl # where ktest.pl was called from
`dirname /path/to/ktest.pl`/config-bisect.pl # where ktest.pl exists
${BUILD_DIR}/tools/testing/ktest/config-bisect.pl
# where config-bisect.pl exists in the source tree.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
|
|
|
Steven Rostedt (VMware)
|
133087f062 |
ktest.pl: Have ktest.pl pass -r to config-bisect.pl to reset bisect
If config-bisect.pl sees that a config_bisect has already been started, it will ask on the command line if it should bisect or not. This will mess up running config_bisect from ktest.pl. Have ktest.pl pass in '-r' to config-bisect.pl and have config-bisect.pl recognize that to reset without asking. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
b2b07ea282 |
ktest.pl: Use diffconfig if available for failed config bisects
Check to see if diffconfig is available and use that to diff the configs instead of using 'diff -u', as diffconfig produces much better output of kernel config files. It checks the source directory for the executable. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Steven Rostedt (VMware)
|
b337f9790a |
ktest.pl: Allow for the config-bisect.pl output to display to console
When commands are run in ktest, they are only displayed in the ktest log file, but that is not sufficient for outputting the display for config bisects. The result of a config bisect is not shown. Add a way to display the output of "run_command" which is the subroutine used by ktest to execute commands. Use this feature to display the output of config-bisect.pl executions to see the progress as well as the result. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
Scott Wood
|
a9adc261e9 |
ktest: Use config-bisect.pl in ktest.pl
Reduce code duplication and take advantage of bisection logic improvements by calling config-bisect.pl. The output of make oldconfig is now copied directly to the desired file, rather than doing assign_configs+save_config, in order to preserve the ordering so that diffing the configs at the end will provide useful output. Link: http://lkml.kernel.org/r/20170717001630.10518-8-swood@redhat.com Signed-off-by: Scott Wood <swood@redhat.com> [ Modified to use with new version of config-bisect.pl ] Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Steven Rostedt (Red Hat)
|
0f0db06599 |
ktest: Add standalone config-bisect.pl program
Started working on a stand alone program that can do a config bisect. It is based on the config bisect code of ktest.pl. Instead of needing all the infrastructure of ktest.pl, all that is required for config-bisect.pl is two config files. One that works, and one that does not. The goal is to pass in the two files, and it will create a new "good" and a new "bad" config file based on input from the user. After several iterations (calls to this program), it will eventually end with a minimum config value that allows one config to work and the other config to break. The program uses a technique that takes the good config and then makes half of the configs that differ from the bad config just like the bad config. The code will use make oldconfig to make sure the configs that are set are not all converted back due to incorrect dependencies on other configs set in the bad config but not in the new test config. This is still a work in progress, but as it was written while I was working at Red Hat, I want this code to be submitted as such. Signed-off-by: Steven Rostedt (Red Hat) <rostedt@goodmis.org> |
|
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Arnaldo Carvalho de Melo
|
94e87a8bd5 |
perf hists browser: Remove leftover from row returned from refresh
The per-browser screen refresh routine (ui_browser->refresh()) should
return the first row that should be cleaned after the rows just printed,
in case not all rows available on the screen gets filled.
When moving the extra title lines logic from the hists browser to the
generic ui_browser class, one piece of that logic remained in the hists
browser and then when going back from the annotate browser to the hists
browser in a case where fewer lines were displayed in the hists browser,
for instance when filtering the entries per substring, one line of the
annotate browser would remain on the screen, fix that.
Example of the screen artifact:
================================================================================
Samples: 73K of event 'cycles:ppp', 4000 Hz, Event count (approx.): 45172901394
Overhead Shared O Symbol
0.30% [kernel] [k] __indirect_thunk_start
0.09% [kernel] [k] __x86_indirect_thunk_r10
│ lfence
================================================================================
Here from 'perf top' the view was zoomed with '/thunk' to functions
having that substring, then the first was annotated and from the
annotate browser ESC was pressed, then the first lines were overwritten,
but the 'lfence' line remained due to the off by one bug fixed in this
cset.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes:
|
|
|
Arnaldo Carvalho de Melo
|
fdae640080 |
perf hists browser: Show extra_title_lines in the 'D' debug hotkey
To help in fixing problems in the browser. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-uj0n76yqh5bf98i0edckd47t@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Adrian Hunter
|
b238db6557 |
perf auxtrace: Make auxtrace_queues__add_buffer() do CPU filtering
In preparation for supporting AUX area sampling buffers, auxtrace_queues__add_buffer() needs to be more generic. To that end, move CPU filtering into it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1520327598-1317-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Vishal Verma
|
f6adcca02c |
libnvdimm, testing: update the default smart ctrl_temperature
The default value for smart ctrl_temperature was the same as the threshold for ctrl_temperature. As a result, any arbitrary smart injection to the nfit_test dimm could cause this alarm to trigger and cause an acpi notification. Drop the default value to below the threshold, so that unrelated injections don't trigger notifications. Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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Vishal Verma
|
4cf260fc40 |
libnvdimm, testing: Add emulation for smart injection commands
Add support for the smart injection command in the nvdimm unit test framework. This allows for directly injecting to smart fields and flags that are supported in the injection command. If the injected values are past the threshold, then an acpi notification is also triggered. Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
|
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Linus Torvalds
|
672a9c1069 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: kfifo: fix inaccurate comment tools/thermal: tmon: fix for segfault net: Spelling s/stucture/structure/ edd: don't spam log if no EDD information is present Documentation: Fix early-microcode.txt references after file rename tracing: Block comments should align the * on each line treewide: Fix typos in printk GenWQE: Fix a typo in two comments treewide: Align function definition open/close braces |
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Arnaldo Carvalho de Melo
|
01f97511f1 |
tools headers uapi: Synchronize i915_drm.h
To pick up the changes in: |
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|
Arnaldo Carvalho de Melo
|
41a43dacec |
perf report: Remove duplicated 'samples' in lost samples warning
The following message, emitted when samples are lost due to system overload, had one 'samples' too many, ditch it: Processed 25333 samples and lost 20.88% samples! Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Cc: Kan Liang <kan.liang@intel.com> Link: https://lkml.kernel.org/n/tip-oev1469y02hmfere6r2kkxp6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Linus Torvalds
|
1b2951dd99 |
This is the bulk of GPIO changes for the v4.17 kernel cycle:
New drivers:
- Nintendo Wii GameCube GPIO, known as "Hollywood"
- Raspberry Pi mailbox service GPIO expander
- Spreadtrum main SC9860 SoC and IEC GPIO controllers.
Improvements:
- Implemented .get_multiple() callback for most of the
high-performance industrial GPIO cards for the ISA bus.
- ISA GPIO drivers now select the ISA_BUS_API instead of
depending on it. This is merged with the same pattern
for all the ISA drivers and some other Kconfig cleanups
related to this.
Cleanup:
- Delete the TZ1090 GPIO drivers following the deletion of
this SoC from the ARM tree.
- Move the documentation over to driver-api to conform with
the rest of the kernel documentation build.
- Continue to make the GPIO drivers include only
<linux/gpio/driver.h> and not the too broad <linux/gpio.h>
that we want to get rid of.
- Managed to remove VLA allocation from two drivers pending
more fixes in this area for the next merge window.
- Misc janitorial fixes.
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Merge tag 'gpio-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.17 kernel cycle:
New drivers:
- Nintendo Wii GameCube GPIO, known as "Hollywood"
- Raspberry Pi mailbox service GPIO expander
- Spreadtrum main SC9860 SoC and IEC GPIO controllers.
Improvements:
- Implemented .get_multiple() callback for most of the
high-performance industrial GPIO cards for the ISA bus.
- ISA GPIO drivers now select the ISA_BUS_API instead of depending on
it. This is merged with the same pattern for all the ISA drivers
and some other Kconfig cleanups related to this.
Cleanup:
- Delete the TZ1090 GPIO drivers following the deletion of this SoC
from the ARM tree.
- Move the documentation over to driver-api to conform with the rest
of the kernel documentation build.
- Continue to make the GPIO drivers include only
<linux/gpio/driver.h> and not the too broad <linux/gpio.h> that we
want to get rid of.
- Managed to remove VLA allocation from two drivers pending more
fixes in this area for the next merge window.
- Misc janitorial fixes"
* tag 'gpio-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
gpio: Add Spreadtrum PMIC EIC driver support
gpio: Add Spreadtrum EIC driver support
dt-bindings: gpio: Add Spreadtrum EIC controller documentation
gpio: ath79: Fix potential NULL dereference in ath79_gpio_probe()
pinctrl: qcom: Don't allow protected pins to be requested
gpiolib: Support 'gpio-reserved-ranges' property
gpiolib: Change bitmap allocation to kmalloc_array
gpiolib: Extract mask allocation into subroutine
dt-bindings: gpio: Add a gpio-reserved-ranges property
gpio: mockup: fix a potential crash when creating debugfs entries
gpio: pca953x: add compatibility for pcal6524 and pcal9555a
gpio: dwapb: Add support for a bus clock
gpio: Remove VLA from xra1403 driver
gpio: Remove VLA from MAX3191X driver
gpio: ws16c48: Implement get_multiple callback
gpio: gpio-mm: Implement get_multiple callback
gpio: 104-idi-48: Implement get_multiple callback
gpio: 104-dio-48e: Implement get_multiple callback
gpio: pcie-idio-24: Implement get_multiple/set_multiple callbacks
gpio: pci-idio-16: Implement get_multiple callback
...
|
|
|
Arnaldo Carvalho de Melo
|
caf61de356 |
perf ui browser: Fixup cleaning unused lines at the bottom
Now that we can have extra title lines we should use ui_browser->rows
and not ->height when drawing lines, as well as adding
ui_browser->extra_title_lines to browser->y when cleaning unused lines
at the bottom, otherwise we end up clobbering with spaces the last line
just shown by ui_browser->refresh() routine.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes:
|
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Arnaldo Carvalho de Melo
|
e726c8511c |
perf annotate browser: Fixup vertical line separating metrics from instructions
Now that we can have extra title lines we should use ui_browser->rows
and not ->height when drawing lines, as it will use ui_browser__gotorc()
and that will take the extra title lines into account, which was causing
an off by one at the end of the vertical line drawn by
__ui_browser__vline(), fix it.
The visual effect was that the last line, with status messages, was
being overwritten by the vertical line, looking like:
Press 'h' for help on│key bindings
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes:
|
|
|
Arnaldo Carvalho de Melo
|
c0459a0925 |
perf annotate: Show group details on the title line
To match what is shown in the main 'perf report/top' title lines, i.e.
if a group is being shown, either a real group (recorded with "-e
'{a,b,c}') or a forced group (using 'perf report --group' for a
perf.data file recorded without {}) we will show multiple columns,
one per event, but we were failing to show the group details, so, for:
# perf report --header-only | grep cmdline
# cmdline : /home/acme/bin/perf record -e {cycles,instructions,cache-misses}
# perf report --group
The first line was showing just "cycles", now it shows the correct line,
which is:
Samples: 578 of events 'anon group { cycles, instructions, cache-misses }', 4000 Hz, Event count (approx.): 487421794
syscall_return_via_sysret /lib/modules/4.16.0-rc7/build/vmlinux
0.22 2.97 0.00 │ ↓ jmp 6c
│ mov %cr3,%rdi
1.33 10.89 4.00 │ ↓ jmp 62
│ mov %rdi,%rax
<SNIP>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes:
|
|
|
Adrian Hunter
|
0d75f123a6 |
perf auxtrace: Make auxtrace_queues__add_buffer() allocate struct buffer
In preparation for supporting AUX area sampling buffers, auxtrace_queues__add_buffer() needs to be more generic. To that end, move memory allocation for struct buffer into it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1520327598-1317-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Linus Torvalds
|
06dd3dfeea |
Char/Misc patches for 4.17-rc1
Here is the big set of char/misc driver patches for 4.17-rc1.
There are a lot of little things in here, nothing huge, but all
important to the different hardware types involved:
- thunderbolt driver updates
- parport updates (people still care...)
- nvmem driver updates
- mei updates (as always)
- hwtracing driver updates
- hyperv driver updates
- extcon driver updates
- and a handfull of even smaller driver subsystem and individual
driver updates
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc updates from Greg KH:
"Here is the big set of char/misc driver patches for 4.17-rc1.
There are a lot of little things in here, nothing huge, but all
important to the different hardware types involved:
- thunderbolt driver updates
- parport updates (people still care...)
- nvmem driver updates
- mei updates (as always)
- hwtracing driver updates
- hyperv driver updates
- extcon driver updates
- ... and a handful of even smaller driver subsystem and individual
driver updates
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (149 commits)
hwtracing: Add HW tracing support menu
intel_th: Add ACPI glue layer
intel_th: Allow forcing host mode through drvdata
intel_th: Pick up irq number from resources
intel_th: Don't touch switch routing in host mode
intel_th: Use correct method of finding hub
intel_th: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
stm class: Make dummy's master/channel ranges configurable
stm class: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
MAINTAINERS: Bestow upon myself the care for drivers/hwtracing
hv: add SPDX license id to Kconfig
hv: add SPDX license to trace
Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
Drivers: hv: vmbus: respect what we get from hv_get_synint_state()
/dev/mem: Avoid overwriting "err" in read_mem()
eeprom: at24: use SPDX identifier instead of GPL boiler-plate
eeprom: at24: simplify the i2c functionality checking
eeprom: at24: fix a line break
eeprom: at24: tweak newlines
eeprom: at24: refactor at24_probe()
...
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|
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Linus Torvalds
|
38047d5c26 |
Driver core patches for 4.17-rc1
Here is the "big" set of driver core patches for 4.17-rc1. There's really not much here, just a bunch of firmware code refactoring from Luis as he attempts to wrangle that codebase into something that is managable, along with a bunch of userspace tests for it. Other than that, a handful of small bugfixes and reverts of things that didn't work out. Full details are in the shortlog, it's not all that much. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWsSiGg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ylPpACgyEKOur8rwp/3uBRxqhoFeWp1RtAAoIvlMjn6 MQ8LIeHNLRnpqGX5L78L =93HA -----END PGP SIGNATURE----- Merge tag 'driver-core-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the "big" set of driver core patches for 4.17-rc1. There's really not much here, just a bunch of firmware code refactoring from Luis as he attempts to wrangle that codebase into something that is managable, along with a bunch of userspace tests for it. Other than that, a handful of small bugfixes and reverts of things that didn't work out. Full details are in the shortlog, it's not all that much. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (30 commits) drivers: base: remove check for callback in coredump_store() mt7601u: use firmware_request_cache() to address cache on reboot firmware: add firmware_request_cache() to help with cache on reboot firmware: fix typo on pr_info_once() when ignore_sysfs_fallback is used firmware: explicitly include vmalloc.h firmware: ensure the firmware cache is not used on incompatible calls test_firmware: modify custom fallback tests to use unique files firmware: add helper to check to see if fw cache is setup firmware: fix checking for return values for fw_add_devm_name() rename: _request_firmware_load() fw_load_sysfs_fallback() test_firmware: test three firmware kernel configs using a proc knob test_firmware: expand on library with shared helpers firmware: enable to force disable the fallback mechanism at run time firmware: enable run time change of forcing fallback loader firmware: move firmware loader into its own directory firmware: split firmware fallback functionality into its own file firmware: move loading timeout under struct firmware_fallback_config firmware: use helpers for setting up a temporary cache timeout firmware: simplify CONFIG_FW_LOADER_USER_HELPER_FALLBACK further drivers: base: add description for .coredump() callback ... |
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Linus Torvalds
|
9abf8acea2 |
TTY/Serial driver patches for 4.17-rc1
Here is the big set of tty and serial driver patches for 4.17-rc1 Not all that big really, most are just small fixes and additions to existing drivers. There's a bunch of work on the imx serial driver recently for some reason, and a new embedded serial driver added as well. Full details are in the shortlog. All of these have been in the linux-next tree for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWsSn+w8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynb6wCdEf5dAUrSB37ptZY78n4kc6nI6NAAniDO+rjL ppZZp7QTIB/bnPfW8cOH =+tfY -----END PGP SIGNATURE----- Merge tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here is the big set of tty and serial driver patches for 4.17-rc1 Not all that big really, most are just small fixes and additions to existing drivers. There's a bunch of work on the imx serial driver recently for some reason, and a new embedded serial driver added as well. Full details are in the shortlog. All of these have been in the linux-next tree for a while with no reported issues" * tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits) serial: expose buf_overrun count through proc interface serial: mvebu-uart: fix tx lost characters tty: serial: msm_geni_serial: Fix return value check in qcom_geni_serial_probe() tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP 8250-men-mcb: add support for 16z025 and 16z057 powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused serial: stm32: fix initialization of RS485 mode ARM: dts: STi: Remove "console=ttyASN" from bootargs for STi boards vt: change SGR 21 to follow the standards serdev: Fix typo in serdev_device_alloc ARM: dts: STi: Fix aliases property name for STi boards tty: st-asc: Update tty alias serial: stm32: add support for RS485 hardware control mode dt-bindings: serial: stm32: add RS485 optional properties selftests: add devpts selftests devpts: comment devpts_mntget() devpts: resolve devpts bind-mounts devpts: hoist out check for DEVPTS_SUPER_MAGIC serial: 8250: Add Nuvoton NPCM UART serial: mxs-auart: disable clks of Alphascale ASM9260 ... |
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Linus Torvalds
|
ac9053d2dc |
USB/PHY patches for 4.17-rc1
Here is the big set of USB and PHY driver patches for 4.17-rc1. Lots of USB typeC work happened this round, with code moving from the staging directory into the "real" part of the kernel, as well as new infrastructure being added to be able to handle the different types of "roles" that typeC requires. There is also the normal huge set of USB gadget controller and driver updates, along with XHCI changes, and a raft of other tiny fixes all over the USB tree. And the PHY driver updates are merged in here as well as they interacted with the USB drivers in some places. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWsSpJw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ylGawCdED2xS3HUxOIqfh81d8B1py8ji04AoJXdLAsH JgwXbdbibZBabYTVi5s5 =LrRH -----END PGP SIGNATURE----- Merge tag 'usb-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/PHY updates from Greg KH: "Here is the big set of USB and PHY driver patches for 4.17-rc1. Lots of USB typeC work happened this round, with code moving from the staging directory into the "real" part of the kernel, as well as new infrastructure being added to be able to handle the different types of "roles" that typeC requires. There is also the normal huge set of USB gadget controller and driver updates, along with XHCI changes, and a raft of other tiny fixes all over the USB tree. And the PHY driver updates are merged in here as well as they interacted with the USB drivers in some places. All of these have been in linux-next for a while with no reported issues" * tag 'usb-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (250 commits) Revert "USB: serial: ftdi_sio: add Id for Physik Instrumente E-870" usb: musb: gadget: misplaced out of bounds check usb: chipidea: imx: Fix ULPI on imx53 usb: chipidea: imx: Cleanup ci_hdrc_imx_platform_flag usb: chipidea: usbmisc: small clean up usb: chipidea: usbmisc: evdo can be set e/o reset usb: chipidea: usbmisc: evdo is only specific to OTG port USB: serial: ftdi_sio: add Id for Physik Instrumente E-870 usb: dwc3: gadget: never call ->complete() from ->ep_queue() usb: gadget: udc: core: update usb_ep_queue() documentation usb: host: Remove the deprecated ATH79 USB host config options usb: roles: Fix return value check in intel_xhci_usb_probe() USB: gadget: f_midi: fixing a possible double-free in f_midi usb: core: Add USB_QUIRK_DELAY_CTRL_MSG to usbcore quirks usb: core: Copy parameter string correctly and remove superfluous null check USB: announce bcdDevice as well as idVendor, idProduct. USB:fix USB3 devices behind USB3 hubs not resuming at hibernate thaw usb: hub: Reduce warning to notice on power loss USB: serial: ftdi_sio: add support for Harman FirmwareHubEmulator USB: serial: cp210x: add ELDAT Easywave RX09 id ... |
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Paolo Bonzini
|
6089ae0bd5 |
kvm: selftests: add sync_regs_test
This includes the infrastructure to map the test into the guest and run code from the test program inside a VM. Signed-off-by: Ken Hofsass <hofsass@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Bonzini
|
783e9e5126 |
kvm: selftests: add API testing infrastructure
Testsuite contributed by Google and cleaned up by myself for inclusion in Linux. Signed-off-by: Ken Hofsass <hofsass@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Ingo Molnar
|
b89e7914f0 |
perf/core improvements and fixes:
- Show only failing syscalls with 'perf trace --failure' (Arnaldo Carvalho de Melo)
e.g: See what 'openat' syscalls are failing:
# perf trace --failure -e openat
762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory
<SNIP N /dev/videoN open attempts... sigh, where is that improvised camera lid?!? >
790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory
^C#
- Show information about the event (freq, nr_samples, total period/nr_events) in
the annotate --tui and --stdio2 'perf annotate' output, similar to the
first line in the 'perf report --tui', but just for the samples for a
the annotated symbol (Arnaldo Carvalho de Melo)
- Introduce 'perf version --build-options' to show what features were
linked, aliased as well as a shorter 'perf -vv' (Jin Yao)
- Add a "dso_size" sort order (Kim Phillips)
- Remove redundant ')' in the tracepoint output in 'perf trace' (Changbin Du)
- Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.17-20180403' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
- Show only failing syscalls with 'perf trace --failure' (Arnaldo Carvalho de Melo)
e.g: See what 'openat' syscalls are failing:
# perf trace --failure -e openat
762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory
<SNIP N /dev/videoN open attempts... sigh, where is that improvised camera lid?!? >
790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory
^C#
- Show information about the event (freq, nr_samples, total period/nr_events) in
the annotate --tui and --stdio2 'perf annotate' output, similar to the
first line in the 'perf report --tui', but just for the samples for a
the annotated symbol (Arnaldo Carvalho de Melo)
- Introduce 'perf version --build-options' to show what features were
linked, aliased as well as a shorter 'perf -vv' (Jin Yao)
- Add a "dso_size" sort order (Kim Phillips)
- Remove redundant ')' in the tracepoint output in 'perf trace' (Changbin Du)
- Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Linus Torvalds
|
5bb053bef8 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Support offloading wireless authentication to userspace via
NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari.
2) A lot of work on network namespace setup/teardown from Kirill Tkhai.
Setup and cleanup of namespaces now all run asynchronously and thus
performance is significantly increased.
3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon
Streiff.
4) Support zerocopy on RDS sockets, from Sowmini Varadhan.
5) Use denser instruction encoding in x86 eBPF JIT, from Daniel
Borkmann.
6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime
Chevallier.
7) Support grafting of child qdiscs in mlxsw driver, from Nogah
Frankel.
8) Add packet forwarding tests to selftests, from Ido Schimmel.
9) Deal with sub-optimal GSO packets better in BBR congestion control,
from Eric Dumazet.
10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern.
11) Add path MTU tests to selftests, from Stefano Brivio.
12) Various bits of IPSEC offloading support for mlx5, from Aviad
Yehezkel, Yossi Kuperman, and Saeed Mahameed.
13) Support RSS spreading on ntuple filters in SFC driver, from Edward
Cree.
14) Lots of sockmap work from John Fastabend. Applications can use eBPF
to filter sendmsg and sendpage operations.
15) In-kernel receive TLS support, from Dave Watson.
16) Add XDP support to ixgbevf, this is significant because it should
allow optimized XDP usage in various cloud environments. From Tony
Nguyen.
17) Add new Intel E800 series "ice" ethernet driver, from Anirudh
Venkataramanan et al.
18) IP fragmentation match offload support in nfp driver, from Pieter
Jansen van Vuuren.
19) Support XDP redirect in i40e driver, from Björn Töpel.
20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of
tracepoints in their raw form, from Alexei Starovoitov.
21) Lots of striding RQ improvements to mlx5 driver with many
performance improvements, from Tariq Toukan.
22) Use rhashtable for inet frag reassembly, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits)
net: mvneta: improve suspend/resume
net: mvneta: split rxq/txq init and txq deinit into SW and HW parts
ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh
net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
net: bgmac: Correctly annotate register space
route: check sysctl_fib_multipath_use_neigh earlier than hash
fix typo in command value in drivers/net/phy/mdio-bitbang.
sky2: Increase D3 delay to sky2 stops working after suspend
net/mlx5e: Set EQE based as default TX interrupt moderation mode
ibmvnic: Disable irqs before exiting reset from closed state
net: sched: do not emit messages while holding spinlock
vlan: also check phy_driver ts_info for vlan's real device
Bluetooth: Mark expected switch fall-throughs
Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME
Bluetooth: btrsi: remove unused including <linux/version.h>
Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4
sh_eth: kill useless check in __sh_eth_get_regs()
sh_eth: add sh_eth_cpu_data::no_xdfar flag
ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data()
ipv4: factorize sk_wmem_alloc updates done by __ip_append_data()
...
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Changbin Du
|
51125a29a3 |
perf trace: Remove redundant ')'
There is a redundant ')' at the tail of each event. So remove it. $ sudo perf trace --no-syscalls -e 'kmem:*' -a 899.342 kmem:kfree:(vfs_writev+0xb9) call_site=ffffffff9c453979 ptr=(nil)) 899.344 kmem:kfree:(___sys_recvmsg+0x188) call_site=ffffffff9c9b8b88 ptr=(nil)) Signed-off-by: Changbin Du <changbin.du@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1520937601-24952-1-git-send-email-changbin.du@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Arnaldo Carvalho de Melo
|
520d3f01ea |
perf annotate stdio2: Print more descriptive event information header
To match the recently added event header information to --tui, e.g.:
# perf annotate --ignore-vmlinux --stdio2 _raw_spin_lock_irqsave
Samples: 128 of event 'cycles:ppp', 4000 Hz, Event count (approx.): 48617682
_raw_spin_lock_irqsave() /proc/kcore
0.78 nop
7.03 push %rbx
3.12 pushfq
6.25 pop %rax
nop
mov %rax,%rbx
3.12 cli
nop
xor %eax,%eax
mov $0x1,%edx
79.69 lock cmpxchg %edx,(%rdi)
test %eax,%eax
↓ jne 2b
mov %rbx,%rax
pop %rbx
← retq
2b: mov %eax,%esi
→ callq *ffffffffb30eaed0
mov %rbx,%rax
pop %rbx
← retq
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ujy46x7cldyhyxelyf2b9quy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo
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6920e2854e |
perf annotate browser: Show extra title line with event information
So at the top we'll have two lines, like this, from 'perf report':
# perf report --group --ignore-vmlinux
=====================================================================================================
Samples: 46 of events 'cycles', 4000 Hz, Event count (approx.): 5154895
_raw_spin_lock_irqsave /proc/kcore
Percent │ nop
│ push %rbx
0.00 14.29 0.00 │ pushfq
9.09 0.00 0.00 │ pop %rax
9.09 0.00 20.00 │ nop
│ mov %rax,%rbx
│ cli
4.55 7.14 0.00 │ nop
│ xor %eax,%eax
│ mov $0x1,%edx
│ lock cmpxchg %edx,(%rdi)
77.27 78.57 70.00 │ test %eax,%eax
│ ↓ jne 2b
│ mov %rbx,%rax
0.00 0.00 10.00 │ pop %rbx
│ ← retq
│2b: mov %eax,%esi
│ → callq queued_spin_lock_slowpath
│ mov %rbx,%rax
│ pop %rbx
Press 'h' for help on│key bindings
=====================================================================================================
9.09 + 9.09 + 4.55 + 77.27 = 100
14.29 + 7.14 + 78.57 = 100
20 + 70 + 10 = 100
We can do the math by using 't' to toggle from 'percent' to nr
=====================================================================================================
Samples: 46 of events 'cycles', 4000 Hz, Event count (approx.): 5154895
_raw_spin_lock_irqsave /proc/kcore
Period │ nop
│ push %rbx
0 79273 0 │ pushfq
190455 0 0 │ pop %rax
198038 0 3045 │ nop
│ mov %rax,%rbx
│ cli
217233 32562 0 │ nop
│ xor %eax,%eax
│ mov $0x1,%edx
│ lock cmpxchg %edx,(%rdi)
3421649 979174 28273 │ test %eax,%eax
│ ↓ jne 2b
│ mov %rbx,%rax
0 0 5193 │ pop %rbx
│ ← retq
│2b: mov %eax,%esi
│ → callq queued_spin_lock_slowpath
│ mov %rbx,%rax
│ pop %rbx
Press 'h' for help on│key bindings
=====================================================================================================
79273 + 190455 + 198038 + 3045 + 217233 + 32562 + 3421649 + 979174 + 28273 + 5193 = 5154895
Or number of samples:
=====================================================================================================
ooSamples: 46 of events 'cycles', 4000 Hz, Event count (approx.): 5154895
_raw_spin_lock_irqsave /proc/kcore
Samples │ nop
│ push %rbx
0 2 0 │ pushfq
2 0 0 │ pop %rax
2 0 2 │ nop
│ mov %rax,%rbx
│ cli
1 1 0 │ nop
│ xor %eax,%eax
│ mov $0x1,%edx
│ lock cmpxchg %edx,(%rdi)
17 11 7 │ test %eax,%eax
│ ↓ jne 2b
│ mov %rbx,%rax
0 0 1 │ pop %rbx
│ ← retq
│2b: mov %eax,%esi
│ → callq queued_spin_lock_slowpath
│ mov %rbx,%rax
│ pop %rbx
Press 'h' for help on key bindings
=====================================================================================================
2 + 2 + 2 + 2 + 1 + 1 + 17 + 11 + 7 + 1 = 46
Suggested-by: Martin Liška <mliska@suse.cz>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196935
Link: https://lkml.kernel.org/n/tip-ezccyxld50wtwyt66np6aomo@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo
|
b213eac245 |
perf annotate: Introduce annotation__scnprintf_samples_period() method
To print a string using the total period (nr_events) and the number of samples for a given annotation, i.e. for a given symbol, the counterpart to hists__scnprintf_samples_period(), that is for all the samples in a session (be it a live session, think 'perf top' or a perf.data file, think 'perf report'). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Martin Liška <mliska@suse.cz> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196935 Link: https://lkml.kernel.org/n/tip-goj2wu4fxutc8vd46mw3yg14@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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|
Linus Torvalds
|
f2d285669a |
Power management updates for 4.17-rc1
- Modify the cpuidle poll state implementation to prevent CPUs from
staying in the loop in there for excessive times (Rafael Wysocki).
- Add Intel Cannon Lake chips support to the RAPL power capping
driver (Joe Konno).
- Add reference counting to the device links handling code in the
PM core (Lukas Wunner).
- Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
suspend code (Rafael Wysocki).
- Allow devices to be put into deeper low-power states via ACPI
if both _SxD and _SxW are missing (Daniel Drake).
- Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
keyboard wakeup issue on Asus UX331UA (Chris Chiu).
- Prevent the PCMCIA library code from aborting suspend-to-idle due
to noirq suspend failures resulting from incorrect assumptions
(Rafael Wysocki).
- Add coupled cpuidle supprt to the Exynos3250 platform (Marek
Szyprowski).
- Add new sysfs file to make it easier to specify the image storage
location during hibernation (Mario Limonciello).
- Add sysfs files for collecting suspend-to-idle usage and time
statistics for CPU idle states (Rafael Wysocki).
- Update the pm-graph utilities (Todd Brandt).
- Reduce the kernel log noise related to reporting Low-power Idle
constraings by the ACPI system suspend code (Rafael Wysocki).
- Make it easier to distinguish dedicated wakeup IRQs in the
/proc/interrupts output (Tony Lindgren).
- Add the frequency table validation in cpufreq to the core and
drop it from a number of cpufreq drivers (Viresh Kumar).
- Drop "cooling-{min|max}-level" for CPU nodes from a couple of
DT bindings (Viresh Kumar).
- Clean up the CPU online error code path in the cpufreq core
(Viresh Kumar).
- Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian,
Viresh Kumar).
- Drop memory allocation error messages from a few places in
cpufreq and cpuildle drivers (Markus Elfring).
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Merge tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These update the cpuidle poll state definition to reduce excessive
energy usage related to it, add new CPU ID to the RAPL power capping
driver, update the ACPI system suspend code to handle some special
cases better, extend the PM core's device links code slightly, add new
sysfs attribute for better suspend-to-idle diagnostics and easier
hibernation handling, update power management tools and clean up
cpufreq quite a bit.
Specifics:
- Modify the cpuidle poll state implementation to prevent CPUs from
staying in the loop in there for excessive times (Rafael Wysocki).
- Add Intel Cannon Lake chips support to the RAPL power capping
driver (Joe Konno).
- Add reference counting to the device links handling code in the PM
core (Lukas Wunner).
- Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
suspend code (Rafael Wysocki).
- Allow devices to be put into deeper low-power states via ACPI if
both _SxD and _SxW are missing (Daniel Drake).
- Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
keyboard wakeup issue on Asus UX331UA (Chris Chiu).
- Prevent the PCMCIA library code from aborting suspend-to-idle due
to noirq suspend failures resulting from incorrect assumptions
(Rafael Wysocki).
- Add coupled cpuidle supprt to the Exynos3250 platform (Marek
Szyprowski).
- Add new sysfs file to make it easier to specify the image storage
location during hibernation (Mario Limonciello).
- Add sysfs files for collecting suspend-to-idle usage and time
statistics for CPU idle states (Rafael Wysocki).
- Update the pm-graph utilities (Todd Brandt).
- Reduce the kernel log noise related to reporting Low-power Idle
constraings by the ACPI system suspend code (Rafael Wysocki).
- Make it easier to distinguish dedicated wakeup IRQs in the
/proc/interrupts output (Tony Lindgren).
- Add the frequency table validation in cpufreq to the core and drop
it from a number of cpufreq drivers (Viresh Kumar).
- Drop "cooling-{min|max}-level" for CPU nodes from a couple of DT
bindings (Viresh Kumar).
- Clean up the CPU online error code path in the cpufreq core (Viresh
Kumar).
- Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian, Viresh
Kumar).
- Drop memory allocation error messages from a few places in cpufreq
and cpuildle drivers (Markus Elfring)"
* tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA
cpufreq: CPPC: Use transition_delay_us depending transition_latency
PM / hibernate: Change message when writing to /sys/power/resume
PM / hibernate: Make passing hibernate offsets more friendly
cpuidle: poll_state: Avoid invoking local_clock() too often
PM: cpuidle/suspend: Add s2idle usage and time state attributes
cpuidle: Enable coupled cpuidle support on Exynos3250 platform
cpuidle: poll_state: Add time limit to poll_idle()
cpufreq: tegra186: Don't validate the frequency table twice
cpufreq: speedstep: Don't validate the frequency table twice
cpufreq: sparc: Don't validate the frequency table twice
cpufreq: sh: Don't validate the frequency table twice
cpufreq: sfi: Don't validate the frequency table twice
cpufreq: scpi: Don't validate the frequency table twice
cpufreq: sc520: Don't validate the frequency table twice
cpufreq: s3c24xx: Don't validate the frequency table twice
cpufreq: qoirq: Don't validate the frequency table twice
cpufreq: pxa: Don't validate the frequency table twice
cpufreq: ppc_cbe: Don't validate the frequency table twice
cpufreq: powernow: Don't validate the frequency table twice
...
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Linus Torvalds
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be55375427 |
ACPI updates for 4.17-rc1
- Update the in-kernel ACPICA code to upstream revision 20180313
including:
* Module-level AML code handling fixes and simplifications (Bob
Moore, Erik Schmauss).
* Fixes and cleanups related to messaging (Bob Moore).
* Events handling fixes related to disabling and enabling GPEs
(Erik Schmauss).
* Introduction of SPDX license identifiers and removal of license
boilerplate in multiple files (Erik Schmauss).
* Assorted fixes and cleanups (Bob Moore, Erik Schmauss, Hans
de Goede, Seunghun Han).
- Add new basic driver for the ACPI Time and Alarm Device (Rafael
Wysocki).
- Modify the ACPI battery driver to support battery thresholds on
Lenovo ThinkPads (Ognjen Galic, Colin Ian King).
- Avoid reporting battery capacity over 100 in the ACPI battery
driver in some cases (Laszlo Toth).
- Make the kernel recognize an OEM _OSI string from Dell to avoid
power management issues with NVidia GPUs in Dell platforms (Alex
Hung).
- Make the PCI IRQ management code handle missing _PRS cleanly (Alex
Hung).
- Fix uevent notifications related to device hotplut (Lee, Chun-Yi).
- Prevent the ACPI PAD driver from leaking memory (Lenny Szubowicz).
- Update the ACPI CPPC library code to include subspace IDs in the
kernel messages logged by it (George Cherian).
- Add backlight quirk for Samsung 670Z5E (Hans de Goede).
- Add the NFIT and HMAT tables to the list of ACPI tables that can
be overridden via initrd (Dan Williams).
- Fix and clean up some ACPI documentation and Kconfig help language
(Aishwarya Pant, Randy Dunlap).
- Replace license boilerplate with an SPDX license ID in the ACPI
PMIC operation region handling code (Rajmohan Mani).
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Merge tag 'acpi-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to follow upstream revision
20180313 which includes fixes related to the so-called module-level
AML (mostly "if" type of statements outside of any methods) that
should improve the handling of systems that load alternative SSDTs
depending on the current configuration, for example, and event
handling fixes related to disabling and enabling GPEs on system
startup and on suspend/resume.
Moreover, the ACPICA license boilerplate is replaced with SPDX license
IDs which alone reduces the number of lines of ACPICA code in the
kernel quite a bit.
Also added is a new driver for the generic ACPI Time and Alarm Device
(TAD). At the moment it only handles the most basic capabilities of
the TAD, however.
In addition to that the ACPI battery driver is improved to handle
battery thresholds on ThinkPads, among other things, some bugs are
fixed, a new backlight quirk is added and some documentation is
updated.
Specifics:
- Update the in-kernel ACPICA code to upstream revision 20180313
including:
* Module-level AML code handling fixes and simplifications (Bob
Moore, Erik Schmauss).
* Fixes and cleanups related to messaging (Bob Moore).
* Events handling fixes related to disabling and enabling GPEs
(Erik Schmauss).
* Introduction of SPDX license identifiers and removal of license
boilerplate in multiple files (Erik Schmauss).
* Assorted fixes and cleanups (Bob Moore, Erik Schmauss, Hans de
Goede, Seunghun Han).
- Add new basic driver for the ACPI Time and Alarm Device (Rafael
Wysocki).
- Modify the ACPI battery driver to support battery thresholds on
Lenovo ThinkPads (Ognjen Galic, Colin Ian King).
- Avoid reporting battery capacity over 100 in the ACPI battery
driver in some cases (Laszlo Toth).
- Make the kernel recognize an OEM _OSI string from Dell to avoid
power management issues with NVidia GPUs in Dell platforms (Alex
Hung).
- Make the PCI IRQ management code handle missing _PRS cleanly (Alex
Hung).
- Fix uevent notifications related to device hotplut (Lee, Chun-Yi).
- Prevent the ACPI PAD driver from leaking memory (Lenny Szubowicz).
- Update the ACPI CPPC library code to include subspace IDs in the
kernel messages logged by it (George Cherian).
- Add backlight quirk for Samsung 670Z5E (Hans de Goede).
- Add the NFIT and HMAT tables to the list of ACPI tables that can be
overridden via initrd (Dan Williams).
- Fix and clean up some ACPI documentation and Kconfig help language
(Aishwarya Pant, Randy Dunlap).
- Replace license boilerplate with an SPDX license ID in the ACPI
PMIC operation region handling code (Rajmohan Mani)"
* tag 'acpi-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (39 commits)
ACPI: acpi_pad: Fix memory leak in power saving threads
ACPI / video: Add quirk to force acpi-video backlight on Samsung 670Z5E
ACPI: Add Time and Alarm Device (TAD) driver
ACPI / scan: Send change uevent with offine environmental data
ACPI / Kconfig: Update ACPI_PROCFS_POWER help text
ACPI / OSI: Add OEM _OSI strings to disable NVidia RTD3
ACPICA: Update version to 20180313
ACPICA: Cleanup/simplify module-level code support
ACPICA: Events: add a return on failure from acpi_hw_register_read
ACPICA: adding SPDX headers
ACPICA: Rename a global for clarity, no functional change
ACPICA: macros: fix ACPI_ERROR_NAMESPACE macro
ACPICA: Change a compile-time option to a runtime option
ACPICA: Remove calling of _STA from acpi_get_object_info()
ACPICA: AML Debug Object: Don't ignore output of zero-length strings
ACPICA: Fix memory leak on unusual memory leak
ACPICA: Events: Dispatch GPEs after enabling for the first time
ACPICA: Events: Add parallel GPE handling support to fix potential redundant _Exx evaluations
ACPICA: Events: Stop unconditionally clearing ACPI IRQs during suspend/resume
ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c
...
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Arnaldo Carvalho de Melo
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ef9ff6017e |
perf ui browser: Move the extra title lines from the hists browser
This will be useful for the annotate browser as well, that wants to have
extra title lines, i.e. the current ui_browser unconditionally reserves
the first line for a browser title and the last one for status messages.
But some browsers, like the buckets one (hists browser) needs extra
lines to show headers, allowing it to be shown or not, press 'H' in
'perf top' or 'perf report' to see this feature.
So move that logic to the core ui_browser used by the hists_browser
('perf top' and 'perf report' main interface) so that it can be used by
the annotate browser too.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196935
Link: https://lkml.kernel.org/n/tip-r38xm3ut37ulbg1o5tn5iise@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo
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25c312dbf8 |
perf hists: Move hists__scnprintf_title() away from the TUI code
The previous patch made this function useful to non-TUI parts of the tools, but left it where the function from what it was carved, so that the patch showed more clearly the process. Now just move it outside the TUI parts so that we can finally use it, even when the TUI code doesn't get built/linked. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Martin Liška <mliska@suse.cz> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196935 Link: https://lkml.kernel.org/n/tip-hqj7hvcr3mu5lvcqp3cssio6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Arnaldo Carvalho de Melo
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967a464a7e |
perf hists: Introduce hists__scnprint_title()
That is not use any struct hists_browser internals, so that it can be shared with the other UIs and tools. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Martin Liška <mliska@suse.cz> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196935 Link: https://lkml.kernel.org/n/tip-w8mczjnqnbcj9yzfkv9ja6ro@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Arnaldo Carvalho de Melo
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f016d24acd |
perf hists browser: Rename perf_evsel_browser_title to a more descriptive name
Rename it to hists_browser__scnprintf_title() to better reflect that it provides a scnprintf-like function operating on a hists_browser instance. This paves the way to have a non-hists_browser specific function to scnprintf format a title with per evsel information to use in other tools or UIs. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Martin Liška <mliska@suse.cz> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196935 Link: https://lkml.kernel.org/n/tip-sntpyzxsnme9jvuz2qntwoh2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Michael Ellerman
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b6f534d1a6 |
selftests/powerpc: Fix copyloops build since Power4 assembler change
The recent commit |
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Linus Torvalds
|
f5a8eb632b |
arch: remove obsolete architecture ports
This removes the entire architecture code for blackfin, cris, frv, m32r, metag, mn10300, score, and tile, including the associated device drivers. I have been working with the (former) maintainers for each one to ensure that my interpretation was right and the code is definitely unused in mainline kernels. Many had fond memories of working on the respective ports to start with and getting them included in upstream, but also saw no point in keeping the port alive without any users. In the end, it seems that while the eight architectures are extremely different, they all suffered the same fate: There was one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem, which was more costly than licensing newer off-the-shelf CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems that all the SoC product lines are still around, but have not used the custom CPU architectures for several years at this point. In contrast, CPU instruction sets that remain popular and have actively maintained kernel ports tend to all be used across multiple licensees. The removal came out of a discussion that is now documented at https://lwn.net/Articles/748074/. Unlike the original plans, I'm not marking any ports as deprecated but remove them all at once after I made sure that they are all unused. Some architectures (notably tile, mn10300, and blackfin) are still being shipped in products with old kernels, but those products will never be updated to newer kernel releases. After this series, we still have a few architectures without mainline gcc support: - unicore32 and hexagon both have very outdated gcc releases, but the maintainers promised to work on providing something newer. At least in case of hexagon, this will only be llvm, not gcc. - openrisc, risc-v and nds32 are still in the process of finishing their support or getting it added to mainline gcc in the first place. They all have patched gcc-7.3 ports that work to some degree, but complete upstream support won't happen before gcc-8.1. Csky posted their first kernel patch set last week, their situation will be similar. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJawdL2AAoJEGCrR//JCVInuH0P/RJAZh1nTD+TR34ZhJq2TBoo PgygwDU7Z2+tQVU+EZ453Gywz9/NMRFk1RWAZqrLix4ZtyIMvC6A1qfT2yH1Y7Fb Qh6tccQeLe4ezq5u4S/46R/fQXu3Txr92yVwzJJUuPyU0arF9rv5MmI8e6p7L1en yb74kSEaCe+/eMlsEj1Cc1dgthDNXGKIURHkRsILoweysCpesjiTg4qDcL+yTibV FP2wjVbniKESMKS6qL71tiT5sexvLsLwMNcGiHPj94qCIQuI7DLhLdBVsL5Su6gI sbtgv0dsq4auRYAbQdMaH1hFvu6WptsuttIbOMnz2Yegi2z28H8uVXkbk2WVLbqG ZESUwutGh8MzOL2RJ4jyyQq5sfo++CRGlfKjr6ImZRv03dv0pe/W85062cK5cKNs cgDDJjGRorOXW7dyU6jG2gRqODOQBObIv3w5efdq5OgzOWlbI4EC+Y5u1Z0JF/76 pSwtGXA6YhwC+9LLAlnVTHG+yOwuLmAICgoKcTbzTVDKA2YQZG/cYuQfI5S1wD8e X6urPx3Md2GCwLXQ9mzKBzKZUpu/Tuhx0NvwF4qVxy6x1PELjn68zuP7abDHr46r 57/09ooVN+iXXnEGMtQVS/OPvYHSa2NgTSZz6Y86lCRbZmUOOlK31RDNlMvYNA+s 3iIVHovno/JuJnTOE8LY =fQ8z -----END PGP SIGNATURE----- Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pul removal of obsolete architecture ports from Arnd Bergmann: "This removes the entire architecture code for blackfin, cris, frv, m32r, metag, mn10300, score, and tile, including the associated device drivers. I have been working with the (former) maintainers for each one to ensure that my interpretation was right and the code is definitely unused in mainline kernels. Many had fond memories of working on the respective ports to start with and getting them included in upstream, but also saw no point in keeping the port alive without any users. In the end, it seems that while the eight architectures are extremely different, they all suffered the same fate: There was one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem, which was more costly than licensing newer off-the-shelf CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems that all the SoC product lines are still around, but have not used the custom CPU architectures for several years at this point. In contrast, CPU instruction sets that remain popular and have actively maintained kernel ports tend to all be used across multiple licensees. [ See the new nds32 port merged in the previous commit for the next generation of "one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem" - Linus ] The removal came out of a discussion that is now documented at https://lwn.net/Articles/748074/. Unlike the original plans, I'm not marking any ports as deprecated but remove them all at once after I made sure that they are all unused. Some architectures (notably tile, mn10300, and blackfin) are still being shipped in products with old kernels, but those products will never be updated to newer kernel releases. After this series, we still have a few architectures without mainline gcc support: - unicore32 and hexagon both have very outdated gcc releases, but the maintainers promised to work on providing something newer. At least in case of hexagon, this will only be llvm, not gcc. - openrisc, risc-v and nds32 are still in the process of finishing their support or getting it added to mainline gcc in the first place. They all have patched gcc-7.3 ports that work to some degree, but complete upstream support won't happen before gcc-8.1. Csky posted their first kernel patch set last week, their situation will be similar [ Palmer Dabbelt points out that RISC-V support is in mainline gcc since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]" This really says it all: 2498 files changed, 95 insertions(+), 467668 deletions(-) * tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits) MAINTAINERS: UNICORE32: Change email account staging: iio: remove iio-trig-bfin-timer driver tty: hvc: remove tile driver tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers serial: remove tile uart driver serial: remove m32r_sio driver serial: remove blackfin drivers serial: remove cris/etrax uart drivers usb: Remove Blackfin references in USB support usb: isp1362: remove blackfin arch glue usb: musb: remove blackfin port usb: host: remove tilegx platform glue pwm: remove pwm-bfin driver i2c: remove bfin-twi driver spi: remove blackfin related host drivers watchdog: remove bfin_wdt driver can: remove bfin_can driver mmc: remove bfin_sdh driver input: misc: remove blackfin rotary driver input: keyboard: remove bf54x driver ... |
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Linus Torvalds
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486adcea4a |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"The main kernel side changes were:
- Modernize the kprobe and uprobe creation/destruction tooling ABIs:
The existing text based APIs (kprobe_events and uprobe_events in
tracefs), are naive, limited ABIs in that they require user-space
to clean up after themselves, which is both difficult and fragile
if the tool is buggy or exits unexpectedly. In other words they are
not really suited for modern, robust tooling.
So introduce a modern, file descriptor based ABI that does not have
these limitations: introduce the 'perf_kprobe' and 'perf_uprobe'
PMUs and extend the perf_event_open() syscall to create events with
a kprobe/uprobe attached to them. These [k,u]probe are associated
with this file descriptor, so they are not available in tracefs.
(Song Liu)
- Intel Cannon Lake CPU support (Harry Pan)
- Intel PT cleanups (Alexander Shishkin)
- Improve the performance of pinned/flexible event groups by using RB
trees (Alexey Budankov)
- Add PERF_EVENT_IOC_MODIFY_ATTRIBUTES which allows the modification
of hardware breakpoints, which new ABI variant massively speeds up
existing tooling that uses hardware breakpoints to instrument (and
debug) memory usage.
(Milind Chabbi, Jiri Olsa)
- Various Intel PEBS handling fixes and improvements, and other Intel
PMU improvements (Kan Liang)
- Various perf core improvements and optimizations (Peter Zijlstra)
- ... misc cleanups, fixes and updates.
There's over 200 tooling commits, here's an (imperfect) list of
highlights:
- 'perf annotate' improvements:
* Recognize and handle jumps to other functions as calls, which
improves the navigation along jumps and back. (Arnaldo Carvalho
de Melo)
* Add the 'P' hotkey in TUI annotation to dump annotation output
into a file, to ease e-mail reporting of annotation details.
(Arnaldo Carvalho de Melo)
* Add an IPC/cycles column to the TUI (Jin Yao)
* Improve s390 assembly annotation (Thomas Richter)
* Refactor the output formatting logic to better separate it into
interactive and non-interactive features and add the --stdio2
output variant to demonstrate this. (Arnaldo Carvalho de Melo)
- 'perf script' improvements:
* Add Python 3 support (Jaroslav Škarvada)
* Add --show-round-event (Jiri Olsa)
- 'perf c2c' improvements:
* Add NUMA analysis support (Jiri Olsa)
- 'perf trace' improvements:
* Improve PowerPC support (Ravi Bangoria)
- 'perf inject' improvements:
* Integrate ARM CoreSight traces (Robert Walker)
- 'perf stat' improvements:
* Add the --interval-count option (yuzhoujian)
* Add the --timeout option (yuzhoujian)
- 'perf sched' improvements (Changbin Du)
- Vendor events improvements :
* Add IBM s390 vendor events (Thomas Richter)
* Add and improve arm64 vendor events (John Garry, Ganapatrao
Kulkarni)
* Update POWER9 vendor events (Sukadev Bhattiprolu)
- Intel PT tooling improvements (Adrian Hunter)
- PMU handling improvements (Agustin Vega-Frias)
- Record machine topology in perf.data (Jiri Olsa)
- Various overwrite related cleanups (Kan Liang)
- Add arm64 dwarf post unwind support (Kim Phillips, Jean Pihet)
- ... and lots of other changes, cleanups and fixes, see the shortlog
and Git history for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf/x86/intel: Enable C-state residency events for Cannon Lake
perf/x86/intel: Add Cannon Lake support for RAPL profiling
perf/x86/pt, coresight: Clean up address filter structure
perf vendor events s390: Add JSON files for IBM z14
perf vendor events s390: Add JSON files for IBM z13
perf vendor events s390: Add JSON files for IBM zEC12 zBC12
perf vendor events s390: Add JSON files for IBM z196
perf vendor events s390: Add JSON files for IBM z10EC z10BC
perf mmap: Be consistent when checking for an unmaped ring buffer
perf mmap: Fix accessing unmapped mmap in perf_mmap__read_done()
perf build: Fix check-headers.sh opts assignment
perf/x86: Update rdpmc_always_available static key to the modern API
perf annotate: Use absolute addresses to calculate jump target offsets
perf annotate: Defer searching for comma in raw line till it is needed
perf annotate: Support jumping from one function to another
perf annotate: Add "_local" to jump/offset validation routines
perf python: Reference Py_None before returning it
perf annotate: Mark jumps to outher functions with the call arrow
perf annotate: Pass function descriptor to its instruction parsing routines
perf annotate: No need to calculate notes->start twice
...
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Daniel Díaz
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6aa69043d9 |
selftests/intel_pstate: Fix build rule for x86
Ensure that ARCH is defined and that this only builds for x86 architectures. It is possible to build from the root of the Linux tree, which will define ARCH, or to run make from the selftests/ directory itself, which has no provision for defining ARCH, so this change is to use the current definition (if any), or to check uname -m if undefined. Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> |
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Linus Torvalds
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701f3b3149 |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"The main changes in the locking subsystem in this cycle were:
- Add the Linux Kernel Memory Consistency Model (LKMM) subsystem,
which is an an array of tools in tools/memory-model/ that formally
describe the Linux memory coherency model (a.k.a.
Documentation/memory-barriers.txt), and also produce 'litmus tests'
in form of kernel code which can be directly executed and tested.
Here's a high level background article about an earlier version of
this work on LWN.net:
https://lwn.net/Articles/718628/
The design principles:
"There is reason to believe that Documentation/memory-barriers.txt
could use some help, and a major purpose of this patch is to
provide that help in the form of a design-time tool that can
produce all valid executions of a small fragment of concurrent
Linux-kernel code, which is called a "litmus test". This tool's
functionality is roughly similar to a full state-space search.
Please note that this is a design-time tool, not useful for
regression testing. However, we hope that the underlying
Linux-kernel memory model will be incorporated into other tools
capable of analyzing large bodies of code for regression-testing
purposes."
[...]
"A second tool is klitmus7, which converts litmus tests to
loadable kernel modules for direct testing. As with herd7, the
klitmus7 code is freely available from
http://diy.inria.fr/sources/index.html
(and via "git" at https://github.com/herd/herdtools7)"
[...]
Credits go to:
"This patch was the result of a most excellent collaboration
founded by Jade Alglave and also including Alan Stern, Andrea
Parri, and Luc Maranget."
... and to the gents listed in the MAINTAINERS entry:
LINUX KERNEL MEMORY CONSISTENCY MODEL (LKMM)
M: Alan Stern <stern@rowland.harvard.edu>
M: Andrea Parri <parri.andrea@gmail.com>
M: Will Deacon <will.deacon@arm.com>
M: Peter Zijlstra <peterz@infradead.org>
M: Boqun Feng <boqun.feng@gmail.com>
M: Nicholas Piggin <npiggin@gmail.com>
M: David Howells <dhowells@redhat.com>
M: Jade Alglave <j.alglave@ucl.ac.uk>
M: Luc Maranget <luc.maranget@inria.fr>
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
The LKMM project already found several bugs in Linux locking
primitives and improved the understanding and the documentation of
the Linux memory model all around.
- Add KASAN instrumentation to atomic APIs (Dmitry Vyukov)
- Add RWSEM API debugging and reorganize the lock debugging Kconfig
(Waiman Long)
- ... misc cleanups and other smaller changes"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
locking/Kconfig: Restructure the lock debugging menu
locking/Kconfig: Add LOCK_DEBUGGING_SUPPORT to make it more readable
locking/rwsem: Add DEBUG_RWSEMS to look for lock/unlock mismatches
lockdep: Make the lock debug output more useful
locking/rtmutex: Handle non enqueued waiters gracefully in remove_waiter()
locking/atomic, asm-generic, x86: Add comments for atomic instrumentation
locking/atomic, asm-generic: Add KASAN instrumentation to atomic operations
locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
locking/atomic, asm-generic: Add asm-generic/atomic-instrumented.h
locking/xchg/alpha: Remove superfluous memory barriers from the _local() variants
tools/memory-model: Finish the removal of rb-dep, smp_read_barrier_depends(), and lockless_dereference()
tools/memory-model: Add documentation of new litmus test
tools/memory-model: Remove mention of docker/gentoo image
locking/memory-barriers: De-emphasize smp_read_barrier_depends() some more
locking/lockdep: Show unadorned pointers
mutex: Drop linkage.h from mutex.h
tools/memory-model: Remove rb-dep, smp_read_barrier_depends, and lockless_dereference
tools/memory-model: Convert underscores to hyphens
tools/memory-model: Add a S lock-based external-view litmus test
tools/memory-model: Add required herd7 version to README file
...
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Linus Torvalds
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8747a29173 |
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The main RCU subsystem changes in this cycle were:
- Miscellaneous fixes, perhaps most notably removing obsolete code
whose only purpose in life was to gather information for the
now-removed RCU debugfs facility. Other notable changes include
removing NO_HZ_FULL_ALL in favor of the nohz_full kernel boot
parameter, minor optimizations for expedited grace periods, some
added tracing, creating an RCU-specific workqueue using Tejun's new
WQ_MEM_RECLAIM flag, and several cleanups to code and comments.
- SRCU cleanups and optimizations.
- Torture-test updates, perhaps most notably the adding of ARMv8
support, but also including numerous cleanups and usability fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
rcu: Create RCU-specific workqueues with rescuers
torture: Provide more sensible nreader/nwriter defaults for rcuperf
torture: Grace periods do not piggyback off of themselves
torture: Adjust rcuperf trace processing to allow for workqueues
torture: Default jitter off when running rcuperf
torture: Specify qemu memory size with --memory argument
rcutorture: Add basic ARM64 support to run scripts
rcutorture: Update kvm.sh header comment
rcutorture: Record which grace-period primitives are tested
rcutorture: Re-enable testing of dynamic expediting
rcutorture: Avoid fake-writer use of undefined primitives
rcutorture: Abstract function and module names
rcutorture: Replace multi-instance kzalloc() with kcalloc()
rcu: Remove SRCU throttling
srcu: Remove dead code in srcu_gp_end()
srcu: Reduce scans of srcu_data in counter wrap check
srcu: Prevent sdp->srcu_gp_seq_needed_exp counter wrap
srcu: Abstract function name
rcu: Make expedited RCU CPU selection avoid unnecessary stores
rcu: Trace expedited GP delays due to transitioning CPUs
...
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Jin Yao
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7098467256 |
perf version: Add man page
Since a new option '--build-options' is created for 'perf version', so we need to document it. Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1522402036-22915-7-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Jin Yao
|
3aa94b10ab |
perf tools: Add 'perf -vv' as an alias to 'perf version --build-options'
We keep having bug reports that when users build perf on their own, but
they don't install some needed libraries such as libelf,
libbfd/libibery.
The perf can build, but it is missing important functionality.
This patch provides a new option '-vv' for perf which will print the
compiled-in status of libraries.
The 'perf -vv' is mapped to 'perf version --build-options'.
For example:
$ ./perf -vv
perf version 4.13.rc5.g6727c5
dwarf: [ on ] # HAVE_DWARF_SUPPORT
dwarf_getlocations: [ on ] # HAVE_DWARF_GETLOCATIONS_SUPPORT
glibc: [ on ] # HAVE_GLIBC_SUPPORT
gtk2: [ on ] # HAVE_GTK2_SUPPORT
libaudit: [ OFF ] # HAVE_LIBAUDIT_SUPPORT
libbfd: [ on ] # HAVE_LIBBFD_SUPPORT
libelf: [ on ] # HAVE_LIBELF_SUPPORT
libnuma: [ on ] # HAVE_LIBNUMA_SUPPORT
numa_num_possible_cpus: [ on ] # HAVE_LIBNUMA_SUPPORT
libperl: [ on ] # HAVE_LIBPERL_SUPPORT
libpython: [ on ] # HAVE_LIBPYTHON_SUPPORT
libslang: [ on ] # HAVE_SLANG_SUPPORT
libcrypto: [ on ] # HAVE_LIBCRYPTO_SUPPORT
libunwind: [ on ] # HAVE_LIBUNWIND_SUPPORT
libdw-dwarf-unwind: [ on ] # HAVE_DWARF_SUPPORT
zlib: [ on ] # HAVE_ZLIB_SUPPORT
lzma: [ on ] # HAVE_LZMA_SUPPORT
get_cpuid: [ on ] # HAVE_AUXTRACE_SUPPORT
bpf: [ on ] # HAVE_LIBBPF_SUPPORT
v3:
One bug is found in v2. It didn't process the option like '-vabc'
correctly. Fix this bug.
v2:
Use a global variable version_verbose to record the number of 'v'.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1522402036-22915-6-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Jin Yao
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9ff2a64708 |
perf version: Print the compiled-in status of libraries
This patch checks the values passed by CFLAGS (-DHAVE_XXX) and then
print the status of libraries.
For example, if HAVE_DWARF_SUPPORT is defined, that means the library
"dwarf" is compiled-in. The patch will print the status "on" for this
library otherwise it print the status "OFF".
A new option '--build-options' created for 'perf version' supports the
printing of library status.
For example:
$ ./perf version --build-options
or
./perf --version --build-options
or
./perf -v --build-options
perf version 4.13.rc5.g6727c5
dwarf: [ on ] # HAVE_DWARF_SUPPORT
dwarf_getlocations: [ on ] # HAVE_DWARF_GETLOCATIONS_SUPPORT
glibc: [ on ] # HAVE_GLIBC_SUPPORT
gtk2: [ on ] # HAVE_GTK2_SUPPORT
libaudit: [ OFF ] # HAVE_LIBAUDIT_SUPPORT
libbfd: [ on ] # HAVE_LIBBFD_SUPPORT
libelf: [ on ] # HAVE_LIBELF_SUPPORT
libnuma: [ on ] # HAVE_LIBNUMA_SUPPORT
numa_num_possible_cpus: [ on ] # HAVE_LIBNUMA_SUPPORT
libperl: [ on ] # HAVE_LIBPERL_SUPPORT
libpython: [ on ] # HAVE_LIBPYTHON_SUPPORT
libslang: [ on ] # HAVE_SLANG_SUPPORT
libcrypto: [ on ] # HAVE_LIBCRYPTO_SUPPORT
libunwind: [ on ] # HAVE_LIBUNWIND_SUPPORT
libdw-dwarf-unwind: [ on ] # HAVE_DWARF_SUPPORT
zlib: [ on ] # HAVE_ZLIB_SUPPORT
lzma: [ on ] # HAVE_LZMA_SUPPORT
get_cpuid: [ on ] # HAVE_AUXTRACE_SUPPORT
bpf: [ on ] # HAVE_LIBBPF_SUPPORT
v4:
1. Also print the macro name. That would make it easier
to grep around in the source looking for where code
related a particular features is located.
2. Update since HAVE_DWARF_GETLOCATIONS is renamed to
HAVE_DWARF_GETLOCATIONS_SUPPORT
v3:
Remove following unnecessary help message.
1. [ on ]: library is compiled-in
[ OFF ]: library is disabled in make configuration
OR library is not installed in build environment
2. Create '--build-options' option.
3. Use standard option parsing API 'parse_options'.
v2:
1. Use IS_BUILTIN macro to replace #ifdef/#endif block.
2. Print color for on/OFF.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1522402036-22915-5-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Jin Yao
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a36ebe4e24 |
perf config: Rename to HAVE_DWARF_GETLOCATIONS_SUPPORT
In Makefile.config, to make all libraries flags have _SUPPORT suffix, rename HAVE_DWARF_GETLOCATIONS to HAVE_DWARF_GETLOCATIONS_SUPPORT Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Suggested-by: Ingo Molnar <mingo@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1522402036-22915-4-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
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Jin Yao
|
8e2c241f0c |
perf config: Add some new -DHAVE_XXX to CFLAGS
For most of libraries, in perf.config, they are recorded with -DHAVE_XXX in CFLAGS according to if the libraries are compiled-in. Then C code then will know if the library is compiled-in or not. While for glibc, no -DHAVE_GLIBC_SUPPORT exists. For python and perl libraries, only -DNO_PYTHON and -DNO_LIBPERL exist. To make the code more consistent, the patch creates -DHAVE_LIBPYTHON_SUPPORT and -DHAVE_LIBPERL_SUPPORT if the python and perl libraries are compiled-in. Since the existing flags -DNO_PYTHON and -DNO_LIBPERL are being used in many places in C code, this patch doesn't remove them. In a follow-up patch, we will recontruct the C code and then use HAVE_XXX instead. v3: Move 'CFLAGS += -DHAVE_LIBPYTHON_SUPPORT' and 'CFLAGS += -DHAVE_LIBPERL_SUPPORT' to other places to avoid duplicated feature checking. v2: Create -DHAVE_GLIBC_SUPPORT, -DHAVE_LIBPYTHON_SUPPORT and -DHAVE_LIBPERL_SUPPORT. Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1522402036-22915-3-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
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Jiri Olsa
|
6b416ebcc3 |
tools include: Add config.h header file
Adding IS_BUILTIN macro and its dependencies into tools world. It's taken from kernel's include/linux/kconfig.h, which can't be taken completely due to its kconfig dependencies. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@intel.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1522402036-22915-2-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
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Arnaldo Carvalho de Melo
|
0a6545bda2 |
perf trace: Show only failing syscalls
For instance:
# perf probe "vfs_getname=getname_flags:72 pathname=result->name:string"
Added new event:
probe:vfs_getname (on getname_flags:72 with pathname=result->name:string)
You can now use it in all perf tools, such as:
perf record -e probe:vfs_getname -aR sleep 1
# perf trace --failure sleep 1
0.043 ( 0.010 ms): sleep/10978 access(filename: /etc/ld.so.preload, mode: R) = -1 ENOENT No such file or directory
For reference, here are all the syscalls in this case:
# perf trace sleep 1
? ( ): sleep/10976 ... [continued]: execve()) = 0
0.027 ( 0.001 ms): sleep/10976 brk() = 0x55bdc2d04000
0.044 ( 0.010 ms): sleep/10976 access(filename: /etc/ld.so.preload, mode: R) = -1 ENOENT No such file or directory
0.057 ( 0.006 ms): sleep/10976 openat(dfd: CWD, filename: /etc/ld.so.cache, flags: CLOEXEC) = 3
0.064 ( 0.002 ms): sleep/10976 fstat(fd: 3, statbuf: 0x7fffac22b370) = 0
0.067 ( 0.003 ms): sleep/10976 mmap(len: 111457, prot: READ, flags: PRIVATE, fd: 3) = 0x7feec8615000
0.071 ( 0.001 ms): sleep/10976 close(fd: 3) = 0
0.080 ( 0.007 ms): sleep/10976 openat(dfd: CWD, filename: /lib64/libc.so.6, flags: CLOEXEC) = 3
0.088 ( 0.002 ms): sleep/10976 read(fd: 3, buf: 0x7fffac22b538, count: 832) = 832
0.092 ( 0.001 ms): sleep/10976 fstat(fd: 3, statbuf: 0x7fffac22b3d0) = 0
0.094 ( 0.002 ms): sleep/10976 mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS) = 0x7feec8613000
0.099 ( 0.004 ms): sleep/10976 mmap(len: 3889792, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3) = 0x7feec8057000
0.104 ( 0.007 ms): sleep/10976 mprotect(start: 0x7feec8203000, len: 2097152) = 0
0.112 ( 0.005 ms): sleep/10976 mmap(addr: 0x7feec8403000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1753088) = 0x7feec8403000
0.120 ( 0.003 ms): sleep/10976 mmap(addr: 0x7feec8409000, len: 14976, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED) = 0x7feec8409000
0.128 ( 0.001 ms): sleep/10976 close(fd: 3) = 0
0.139 ( 0.001 ms): sleep/10976 arch_prctl(option: 4098, arg2: 140663540761856) = 0
0.186 ( 0.004 ms): sleep/10976 mprotect(start: 0x7feec8403000, len: 16384, prot: READ) = 0
0.204 ( 0.003 ms): sleep/10976 mprotect(start: 0x55bdc0ec3000, len: 4096, prot: READ) = 0
0.209 ( 0.004 ms): sleep/10976 mprotect(start: 0x7feec8631000, len: 4096, prot: READ) = 0
0.214 ( 0.010 ms): sleep/10976 munmap(addr: 0x7feec8615000, len: 111457) = 0
0.269 ( 0.001 ms): sleep/10976 brk() = 0x55bdc2d04000
0.271 ( 0.002 ms): sleep/10976 brk(brk: 0x55bdc2d25000) = 0x55bdc2d25000
0.274 ( 0.001 ms): sleep/10976 brk() = 0x55bdc2d25000
0.278 ( 0.007 ms): sleep/10976 open(filename: /usr/lib/locale/locale-archive, flags: CLOEXEC) = 3
0.288 ( 0.001 ms): sleep/10976 fstat(fd: 3</usr/lib/locale/locale-archive>, statbuf: 0x7feec8408aa0) = 0
0.290 ( 0.003 ms): sleep/10976 mmap(len: 113045344, prot: READ, flags: PRIVATE, fd: 3) = 0x7feec1488000
0.297 ( 0.001 ms): sleep/10976 close(fd: 3</usr/lib/locale/locale-archive>) = 0
0.325 (1000.193 ms): sleep/10976 nanosleep(rqtp: 0x7fffac22c0b0) = 0
1000.560 ( 0.006 ms): sleep/10976 close(fd: 1) = 0
1000.573 ( 0.005 ms): sleep/10976 close(fd: 2) = 0
1000.596 ( ): sleep/10976 exit_group()
#
And can be done systemwide, etc, with backtraces:
# perf trace --max-stack=16 --failure sleep 1
0.048 ( 0.015 ms): sleep/11092 access(filename: /etc/ld.so.preload, mode: R) = -1 ENOENT No such file or directory
__access (inlined)
dl_main (/usr/lib64/ld-2.26.so)
#
Or for some specific syscalls:
# perf trace --max-stack=16 -e openat --failure cat /tmp/rien
cat: /tmp/rien: No such file or directory
0.251 ( 0.012 ms): cat/11106 openat(dfd: CWD, filename: /tmp/rien) = -1 ENOENT No such file or directory
__libc_open64 (inlined)
main (/usr/bin/cat)
__libc_start_main (/usr/lib64/libc-2.26.so)
_start (/usr/bin/cat)
#
Look for inotify* syscalls that fail, system wide, for 2 seconds, with backtraces:
# perf trace -a --max-stack=16 --failure -e inotify* sleep 2
819.165 ( 0.058 ms): gmain/1724 inotify_add_watch(fd: 8<anon_inode:inotify>, pathname: /home/acme/~, mask: 16789454) = -1 ENOENT No such file or directory
__GI_inotify_add_watch (inlined)
_ik_watch (/usr/lib64/libgio-2.0.so.0.5400.3)
_ip_start_watching (/usr/lib64/libgio-2.0.so.0.5400.3)
im_scan_missing (/usr/lib64/libgio-2.0.so.0.5400.3)
g_timeout_dispatch (/usr/lib64/libglib-2.0.so.0.5400.3)
g_main_context_dispatch (/usr/lib64/libglib-2.0.so.0.5400.3)
g_main_context_iterate.isra.23 (/usr/lib64/libglib-2.0.so.0.5400.3)
g_main_context_iteration (/usr/lib64/libglib-2.0.so.0.5400.3)
glib_worker_main (/usr/lib64/libglib-2.0.so.0.5400.3)
g_thread_proxy (/usr/lib64/libglib-2.0.so.0.5400.3)
start_thread (/usr/lib64/libpthread-2.26.so)
__GI___clone (inlined)
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-8f7d3mngaxvi7tlzloz3n7cs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo
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5e2a146bbd |
tools headers: Synchronize x86's cpufeatures.h
Due to these commits: |
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Kim Phillips
|
b74d12d598 |
perf tools: Add a "dso_size" sort order
Add DSO size to perf report/top sort output list.
This includes adding a map__size fn to map.h, which is
approximately equal to the DSO data file_size:
DSO file size map (end-start) file / (end-start)
libwebkit2gtk-4.0.so.37.24.9 43260072 41295872 95%
libglib-2.0.so.0.5400.1 1125680 1118208 99%
libc-2.26.so 1960656 1925120 101%
libdbus-1.so.3.14.13 309456 303104 102%
Sample output:
$ ./perf report -s dso_size,dso
Samples: 2K of event 'cycles:uppp', Event count (approx.): 128373340
Overhead DSO size Shared Object
90.62% unknown [unknown]
2.87% 1118208 libglib-2.0.so.0.5400.1
1.92% 303104 libdbus-1.so.3.14.13
1.42% 1925120 libc-2.26.so
0.77% 41295872 libwebkit2gtk-4.0.so.37.24.9
0.61% 335872 libgobject-2.0.so.0.5400.1
0.41% 1052672 libgdk-3.so.0.2200.25
0.36% 106496 libpthread-2.26.so
0.29% 221184 dbus-daemon
0.17% 159744 ld-2.26.so
0.13% 49152 libwayland-client.so.0.3.0
0.12% 1642496 libgio-2.0.so.0.5400.1
0.09%
|
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Rafael J. Wysocki
|
103cf0e579 |
Merge branches 'pm-cpuidle' and 'pm-tools'
* pm-cpuidle: cpuidle: poll_state: Avoid invoking local_clock() too often PM: cpuidle/suspend: Add s2idle usage and time state attributes cpuidle: Enable coupled cpuidle support on Exynos3250 platform cpuidle: poll_state: Add time limit to poll_idle() ARM: cpuidle: Drop memory allocation error message from arm_idle_init_cpu() * pm-tools: pm-graph: AnalyzeSuspend v5.0 pm-graph: AnalyzeBoot v2.2 pm-graph: config files and installer |
|
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Rafael J. Wysocki
|
ae02168d78 |
Merge branch 'acpica'
* acpica: (21 commits) ACPICA: Update version to 20180313 ACPICA: Cleanup/simplify module-level code support ACPICA: Events: add a return on failure from acpi_hw_register_read ACPICA: adding SPDX headers ACPICA: Rename a global for clarity, no functional change ACPICA: macros: fix ACPI_ERROR_NAMESPACE macro ACPICA: Change a compile-time option to a runtime option ACPICA: Remove calling of _STA from acpi_get_object_info() ACPICA: AML Debug Object: Don't ignore output of zero-length strings ACPICA: Fix memory leak on unusual memory leak ACPICA: Events: Dispatch GPEs after enabling for the first time ACPICA: Events: Add parallel GPE handling support to fix potential redundant _Exx evaluations ACPICA: Events: Stop unconditionally clearing ACPI IRQs during suspend/resume ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c ACPICA: Update version to 20180209 ACPICA: Add option to disable Package object name resolution errors ACPICA: Integrate package handling with module-level code ACPICA: Revert "Fix for implicit result conversion for the To____ functions" ACPICA: Update for some debug output. No functional change ACPICA: Update error message, no functional change ... |
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David S. Miller
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c0b458a946 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor conflicts in drivers/net/ethernet/mellanox/mlx5/core/en_rep.c,
we had some overlapping changes:
1) In 'net' MLX5E_PARAMS_LOG_{SQ,RQ}_SIZE -->
MLX5E_REP_PARAMS_LOG_{SQ,RQ}_SIZE
2) In 'net-next' params->log_rq_size is renamed to be
params->log_rq_mtu_frames.
3) In 'net-next' params->hard_mtu is added.
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
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David S. Miller
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d4069fe6fc |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2018-03-31
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Add raw BPF tracepoint API in order to have a BPF program type that
can access kernel internal arguments of the tracepoints in their
raw form similar to kprobes based BPF programs. This infrastructure
also adds a new BPF_RAW_TRACEPOINT_OPEN command to BPF syscall which
returns an anon-inode backed fd for the tracepoint object that allows
for automatic detach of the BPF program resp. unregistering of the
tracepoint probe on fd release, from Alexei.
2) Add new BPF cgroup hooks at bind() and connect() entry in order to
allow BPF programs to reject, inspect or modify user space passed
struct sockaddr, and as well a hook at post bind time once the port
has been allocated. They are used in FB's container management engine
for implementing policy, replacing fragile LD_PRELOAD wrapper
intercepting bind() and connect() calls that only works in limited
scenarios like glibc based apps but not for other runtimes in
containerized applications, from Andrey.
3) BPF_F_INGRESS flag support has been added to sockmap programs for
their redirect helper call bringing it in line with cls_bpf based
programs. Support is added for both variants of sockmap programs,
meaning for tx ULP hooks as well as recv skb hooks, from John.
4) Various improvements on BPF side for the nfp driver, besides others
this work adds BPF map update and delete helper call support from
the datapath, JITing of 32 and 64 bit XADD instructions as well as
offload support of bpf_get_prandom_u32() call. Initial implementation
of nfp packet cache has been tackled that optimizes memory access
(see merge commit for further details), from Jakub and Jiong.
5) Removal of struct bpf_verifier_env argument from the print_bpf_insn()
API has been done in order to prepare to use print_bpf_insn() soon
out of perf tool directly. This makes the print_bpf_insn() API more
generic and pushes the env into private data. bpftool is adjusted
as well with the print_bpf_insn() argument removal, from Jiri.
6) Couple of cleanups and prep work for the upcoming BTF (BPF Type
Format). The latter will reuse the current BPF verifier log as
well, thus bpf_verifier_log() is further generalized, from Martin.
7) For bpf_getsockopt() and bpf_setsockopt() helpers, IPv4 IP_TOS read
and write support has been added in similar fashion to existing
IPv6 IPV6_TCLASS socket option we already have, from Nikita.
8) Fixes in recent sockmap scatterlist API usage, which did not use
sg_init_table() for initialization thus triggering a BUG_ON() in
scatterlist API when CONFIG_DEBUG_SG was enabled. This adds and
uses a small helper sg_init_marker() to properly handle the affected
cases, from Prashant.
9) Let the BPF core follow IDR code convention and therefore use the
idr_preload() and idr_preload_end() helpers, which would also help
idr_alloc_cyclic() under GFP_ATOMIC to better succeed under memory
pressure, from Shaohua.
10) Last but not least, a spelling fix in an error message for the
BPF cookie UID helper under BPF sample code, from Colin.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Linus Torvalds
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93e04d4ad7 |
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 PTI fixes from Ingo Molnar: "Two fixes: a relatively simple objtool fix that makes Clang built kernels work with ORC debug info, plus an alternatives macro fix" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/alternatives: Fixup alternative_call_2 objtool: Add Clang support |
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Ingo Molnar
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169310f71f |
Merge branch 'linus' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
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a44406ec3d |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Fix RCU locking in xfrm_local_error(), from Taehee Yoo.
2) Fix return value assignments and thus error checking in
iwl_mvm_start_ap_ibss(), from Johannes Berg.
3) Don't count header length twice in vti4, from Stefano Brivio.
4) Fix deadlock in rt6_age_examine_exception, from Eric Dumazet.
5) Fix out-of-bounds access in nf_sk_lookup_slow{v4,v6}() from Subash
Abhinov.
6) Check nladdr size in netlink_connect(), from Alexander Potapenko.
7) VF representor SQ numbers are 32 not 16 bits, in mlx5 driver, from
Or Gerlitz.
8) Out of bounds read in skb_network_protocol(), from Eric Dumazet.
9) r8169 driver sets driver data pointer after register_netdev() which
is too late. Fix from Heiner Kallweit.
10) Fix memory leak in mlx4 driver, from Moshe Shemesh.
11) The multi-VLAN decap fix added a regression when dealing with device
that lack a MAC header, such as tun. Fix from Toshiaki Makita.
12) Fix integer overflow in dynamic interrupt coalescing code. From Tal
Gilboa.
13) Use after free in vrf code, from David Ahern.
14) IPV6 route leak between VRFs fix, also from David Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
net: mvneta: fix enable of all initialized RXQs
net/ipv6: Fix route leaking between VRFs
vrf: Fix use after free and double free in vrf_finish_output
ipv6: sr: fix seg6 encap performances with TSO enabled
net/dim: Fix int overflow
vlan: Fix vlan insertion for packets without ethernet header
net: Fix untag for vlan packets without ethernet header
atm: iphase: fix spelling mistake: "Receiverd" -> "Received"
vhost: validate log when IOTLB is enabled
qede: Do not drop rx-checksum invalidated packets.
hv_netvsc: enable multicast if necessary
ip_tunnel: Resolve ipsec merge conflict properly.
lan78xx: Crash in lan78xx_writ_reg (Workqueue: events lan78xx_deferred_multicast_write)
qede: Fix barrier usage after tx doorbell write.
vhost: correctly remove wait queue during poll failure
net/mlx4_core: Fix memory leak while delete slave's resources
net/mlx4_en: Fix mixed PFC and Global pause user control requests
net/smc: use announced length in sock_recvmsg()
llc: properly handle dev_queue_xmit() return value
strparser: Fix sign of err codes
...
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Andrey Ignatov
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1d436885b2 |
selftests/bpf: Selftest for sys_bind post-hooks.
Add selftest for attach types `BPF_CGROUP_INET4_POST_BIND` and `BPF_CGROUP_INET6_POST_BIND`. The main things tested are: * prog load behaves as expected (valid/invalid accesses in prog); * prog attach behaves as expected (load- vs attach-time attach types); * `BPF_CGROUP_INET_SOCK_CREATE` can be attached in a backward compatible way; * post-hooks return expected result and errno. Example: # ./test_sock Test case: bind4 load with invalid access: src_ip6 .. [PASS] Test case: bind4 load with invalid access: mark .. [PASS] Test case: bind6 load with invalid access: src_ip4 .. [PASS] Test case: sock_create load with invalid access: src_port .. [PASS] Test case: sock_create load w/o expected_attach_type (compat mode) .. [PASS] Test case: sock_create load w/ expected_attach_type .. [PASS] Test case: attach type mismatch bind4 vs bind6 .. [PASS] Test case: attach type mismatch bind6 vs bind4 .. [PASS] Test case: attach type mismatch default vs bind4 .. [PASS] Test case: attach type mismatch bind6 vs sock_create .. [PASS] Test case: bind4 reject all .. [PASS] Test case: bind6 reject all .. [PASS] Test case: bind6 deny specific IP & port .. [PASS] Test case: bind4 allow specific IP & port .. [PASS] Test case: bind4 allow all .. [PASS] Test case: bind6 allow all .. [PASS] Summary: 16 PASSED, 0 FAILED Signed-off-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Andrey Ignatov
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622adafb2a |
selftests/bpf: Selftest for sys_connect hooks
Add selftest for BPF_CGROUP_INET4_CONNECT and BPF_CGROUP_INET6_CONNECT
attach types.
Try to connect(2) to specified IP:port and test that:
* remote IP:port pair is overridden;
* local end of connection is bound to specified IP.
All combinations of IPv4/IPv6 and TCP/UDP are tested.
Example:
# tcpdump -pn -i lo -w connect.pcap 2>/dev/null &
[1] 478
# strace -qqf -e connect -o connect.trace ./test_sock_addr.sh
Wait for testing IPv4/IPv6 to become available ... OK
Load bind4 with invalid type (can pollute stderr) ... REJECTED
Load bind4 with valid type ... OK
Attach bind4 with invalid type ... REJECTED
Attach bind4 with valid type ... OK
Load connect4 with invalid type (can pollute stderr) libbpf: load bpf \
program failed: Permission denied
libbpf: -- BEGIN DUMP LOG ---
libbpf:
0: (b7) r2 = 23569
1: (63) *(u32 *)(r1 +24) = r2
2: (b7) r2 = 16777343
3: (63) *(u32 *)(r1 +4) = r2
invalid bpf_context access off=4 size=4
[ 1518.404609] random: crng init done
libbpf: -- END LOG --
libbpf: failed to load program 'cgroup/connect4'
libbpf: failed to load object './connect4_prog.o'
... REJECTED
Load connect4 with valid type ... OK
Attach connect4 with invalid type ... REJECTED
Attach connect4 with valid type ... OK
Test case #1 (IPv4/TCP):
Requested: bind(192.168.1.254, 4040) ..
Actual: bind(127.0.0.1, 4444)
Requested: connect(192.168.1.254, 4040) from (*, *) ..
Actual: connect(127.0.0.1, 4444) from (127.0.0.4, 56068)
Test case #2 (IPv4/UDP):
Requested: bind(192.168.1.254, 4040) ..
Actual: bind(127.0.0.1, 4444)
Requested: connect(192.168.1.254, 4040) from (*, *) ..
Actual: connect(127.0.0.1, 4444) from (127.0.0.4, 56447)
Load bind6 with invalid type (can pollute stderr) ... REJECTED
Load bind6 with valid type ... OK
Attach bind6 with invalid type ... REJECTED
Attach bind6 with valid type ... OK
Load connect6 with invalid type (can pollute stderr) libbpf: load bpf \
program failed: Permission denied
libbpf: -- BEGIN DUMP LOG ---
libbpf:
0: (b7) r6 = 0
1: (63) *(u32 *)(r1 +12) = r6
invalid bpf_context access off=12 size=4
libbpf: -- END LOG --
libbpf: failed to load program 'cgroup/connect6'
libbpf: failed to load object './connect6_prog.o'
... REJECTED
Load connect6 with valid type ... OK
Attach connect6 with invalid type ... REJECTED
Attach connect6 with valid type ... OK
Test case #3 (IPv6/TCP):
Requested: bind(face:b00c:1234:5678::abcd, 6060) ..
Actual: bind(::1, 6666)
Requested: connect(face:b00c:1234:5678::abcd, 6060) from (*, *)
Actual: connect(::1, 6666) from (::6, 37458)
Test case #4 (IPv6/UDP):
Requested: bind(face:b00c:1234:5678::abcd, 6060) ..
Actual: bind(::1, 6666)
Requested: connect(face:b00c:1234:5678::abcd, 6060) from (*, *)
Actual: connect(::1, 6666) from (::6, 39315)
### SUCCESS
# egrep 'connect\(.*AF_INET' connect.trace | \
> egrep -vw 'htons\(1025\)' | fold -b -s -w 72
502 connect(7, {sa_family=AF_INET, sin_port=htons(4040),
sin_addr=inet_addr("192.168.1.254")}, 128) = 0
502 connect(8, {sa_family=AF_INET, sin_port=htons(4040),
sin_addr=inet_addr("192.168.1.254")}, 128) = 0
502 connect(9, {sa_family=AF_INET6, sin6_port=htons(6060),
inet_pton(AF_INET6, "face:b00c:1234:5678::abcd", &sin6_addr),
sin6_flowinfo=0, sin6_scope_id=0}, 128) = 0
502 connect(10, {sa_family=AF_INET6, sin6_port=htons(6060),
inet_pton(AF_INET6, "face:b00c:1234:5678::abcd", &sin6_addr),
sin6_flowinfo=0, sin6_scope_id=0}, 128) = 0
# fg
tcpdump -pn -i lo -w connect.pcap 2> /dev/null
# tcpdump -r connect.pcap -n tcp | cut -c 1-72
reading from file connect.pcap, link-type EN10MB (Ethernet)
17:57:40.383533 IP 127.0.0.4.56068 > 127.0.0.1.4444: Flags [S], seq 1333
17:57:40.383566 IP 127.0.0.1.4444 > 127.0.0.4.56068: Flags [S.], seq 112
17:57:40.383589 IP 127.0.0.4.56068 > 127.0.0.1.4444: Flags [.], ack 1, w
17:57:40.384578 IP 127.0.0.1.4444 > 127.0.0.4.56068: Flags [R.], seq 1,
17:57:40.403327 IP6 ::6.37458 > ::1.6666: Flags [S], seq 406513443, win
17:57:40.403357 IP6 ::1.6666 > ::6.37458: Flags [S.], seq 2448389240, ac
17:57:40.403376 IP6 ::6.37458 > ::1.6666: Flags [.], ack 1, win 342, opt
17:57:40.404263 IP6 ::1.6666 > ::6.37458: Flags [R.], seq 1, ack 1, win
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Andrey Ignatov
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e50b0a6f08 |
selftests/bpf: Selftest for sys_bind hooks
Add selftest to work with bpf_sock_addr context from `BPF_PROG_TYPE_CGROUP_SOCK_ADDR` programs. Try to bind(2) on IP:port and apply: * loads to make sure context can be read correctly, including narrow loads (byte, half) for IP and full-size loads (word) for all fields; * stores to those fields allowed by verifier. All combination from IPv4/IPv6 and TCP/UDP are tested. Both scenarios are tested: * valid programs can be loaded and attached; * invalid programs can be neither loaded nor attached. Test passes when expected data can be read from context in the BPF-program, and after the call to bind(2) socket is bound to IP:port pair that was written by BPF-program to the context. Example: # ./test_sock_addr Attached bind4 program. Test case #1 (IPv4/TCP): Requested: bind(192.168.1.254, 4040) .. Actual: bind(127.0.0.1, 4444) Test case #2 (IPv4/UDP): Requested: bind(192.168.1.254, 4040) .. Actual: bind(127.0.0.1, 4444) Attached bind6 program. Test case #3 (IPv6/TCP): Requested: bind(face:b00c:1234:5678::abcd, 6060) .. Actual: bind(::1, 6666) Test case #4 (IPv6/UDP): Requested: bind(face:b00c:1234:5678::abcd, 6060) .. Actual: bind(::1, 6666) ### SUCCESS Signed-off-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Andrey Ignatov
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d7be143b67 |
libbpf: Support expected_attach_type at prog load
Support setting `expected_attach_type` at prog load time in both `bpf/bpf.h` and `bpf/libbpf.h`. Since both headers already have API to load programs, new functions are added not to break backward compatibility for existing ones: * `bpf_load_program_xattr()` is added to `bpf/bpf.h`; * `bpf_prog_load_xattr()` is added to `bpf/libbpf.h`. Both new functions accept structures, `struct bpf_load_program_attr` and `struct bpf_prog_load_attr` correspondingly, where new fields can be added in the future w/o changing the API. Standard `_xattr` suffix is used to name the new API functions. Since `bpf_load_program_name()` is not used as heavily as `bpf_load_program()`, it was removed in favor of more generic `bpf_load_program_xattr()`. Signed-off-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Lucas Bates
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c0b6edef0b |
tc-testing: Add newline when writing test case files
When using the -i feature to generate random ID numbers for test cases in tdc, the function that writes the JSON to file doesn't add a newline character to the end of the file, so we have to add our own. Signed-off-by: Lucas Bates <lucasb@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Roman Mashak
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1dad0f9fff |
tc-testing: add connmark action tests
Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Ingo Molnar
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2d074918fb |
Merge branch 'perf/urgent' into perf/core
Conflicts: kernel/events/hw_breakpoint.c Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Alexei Starovoitov
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3bbe086988 |
selftests/bpf: test for bpf_get_stackid() from raw tracepoints
similar to traditional traceopint test add bpf_get_stackid() test from raw tracepoints and reduce verbosity of existing stackmap test Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |