mirror of https://gitee.com/openkylin/linux.git
22013 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Andrii Nakryiko
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c34a06c56d |
tools/bpftool: Add ringbuf map to a list of known map types
Add symbolic name "ringbuf" to map to BPF_MAP_TYPE_RINGBUF. Without this, users will see "type 27" instead of "ringbuf" in `map show` output. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200615225355.366256-1-andriin@fb.com |
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Andrii Nakryiko
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b0659d8a95 |
bpf: Fix definition of bpf_ringbuf_output() helper in UAPI comments
Fix definition of bpf_ringbuf_output() in UAPI header comments, which is used
to generate libbpf's bpf_helper_defs.h header. Return value is a number (error
code), not a pointer.
Fixes:
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Flavio Suligoi
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43708c0ab7 |
tools: testing: ftrace: trigger: fix spelling mistake
Fix typo: "tigger" --> "trigger" Signed-off-by: Flavio Suligoi <f.suligoi@asem.it> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Linus Torvalds
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96144c58ab |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) Fix cfg80211 deadlock, from Johannes Berg.
2) RXRPC fails to send norigications, from David Howells.
3) MPTCP RM_ADDR parsing has an off by one pointer error, fix from
Geliang Tang.
4) Fix crash when using MSG_PEEK with sockmap, from Anny Hu.
5) The ucc_geth driver needs __netdev_watchdog_up exported, from
Valentin Longchamp.
6) Fix hashtable memory leak in dccp, from Wang Hai.
7) Fix how nexthops are marked as FDB nexthops, from David Ahern.
8) Fix mptcp races between shutdown and recvmsg, from Paolo Abeni.
9) Fix crashes in tipc_disc_rcv(), from Tuong Lien.
10) Fix link speed reporting in iavf driver, from Brett Creeley.
11) When a channel is used for XSK and then reused again later for XSK,
we forget to clear out the relevant data structures in mlx5 which
causes all kinds of problems. Fix from Maxim Mikityanskiy.
12) Fix memory leak in genetlink, from Cong Wang.
13) Disallow sockmap attachments to UDP sockets, it simply won't work.
From Lorenz Bauer.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits)
net: ethernet: ti: ale: fix allmulti for nu type ale
net: ethernet: ti: am65-cpsw-nuss: fix ale parameters init
net: atm: Remove the error message according to the atomic context
bpf: Undo internal BPF_PROBE_MEM in BPF insns dump
libbpf: Support pre-initializing .bss global variables
tools/bpftool: Fix skeleton codegen
bpf: Fix memlock accounting for sock_hash
bpf: sockmap: Don't attach programs to UDP sockets
bpf: tcp: Recv() should return 0 when the peer socket is closed
ibmvnic: Flush existing work items before device removal
genetlink: clean up family attributes allocations
net: ipa: header pad field only valid for AP->modem endpoint
net: ipa: program upper nibbles of sequencer type
net: ipa: fix modem LAN RX endpoint id
net: ipa: program metadata mask differently
ionic: add pcie_print_link_status
rxrpc: Fix race between incoming ACK parser and retransmitter
net/mlx5: E-Switch, Fix some error pointer dereferences
net/mlx5: Don't fail driver on failure to create debugfs
net/mlx5e: CT: Fix ipv6 nat header rewrite actions
...
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David S. Miller
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fa7566a0d6 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says: ==================== pull-request: bpf 2020-06-12 The following pull-request contains BPF updates for your *net* tree. We've added 26 non-merge commits during the last 10 day(s) which contain a total of 27 files changed, 348 insertions(+), 93 deletions(-). The main changes are: 1) sock_hash accounting fix, from Andrey. 2) libbpf fix and probe_mem sanitizing, from Andrii. 3) sock_hash fixes, from Jakub. 4) devmap_val fix, from Jesper. 5) load_bytes_relative fix, from YiFei. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Andrii Nakryiko
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caf62492f4 |
libbpf: Support pre-initializing .bss global variables
Remove invalid assumption in libbpf that .bss map doesn't have to be updated
in kernel. With addition of skeleton and memory-mapped initialization image,
.bss doesn't have to be all zeroes when BPF map is created, because user-code
might have initialized those variables from user-space.
Fixes:
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Andrii Nakryiko
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22eb78792e |
tools/bpftool: Fix skeleton codegen
Remove unnecessary check at the end of codegen() routine which makes codegen()
to always fail and exit bpftool with error code. Positive value of variable
n is not an indicator of a failure.
Fixes:
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Linus Torvalds
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52cd0d972f |
MIPS:
- Loongson port PPC: - Fixes ARM: - Fixes x86: - KVM_SET_USER_MEMORY_REGION optimizations - Fixes - Selftest fixes The guest side of the asynchronous page fault work has been delayed to 5.9 in order to sync with Thomas's interrupt entry rework. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl7icj4UHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroPHGQgAj9+5j+f5v06iMP/+ponWwsVfh+5/ UR1gPbpMSFMKF0U+BCFxsBeGKWPDiz9QXaLfy6UGfOFYBI475Su5SoZ8/i/o6a2V QjcKIJxBRNs66IG/774pIpONY8/mm/3b6vxmQktyBTqjb6XMGlOwoGZixj/RTp85 +uwSICxMlrijg+fhFMwC4Bo/8SFg+FeBVbwR07my88JaLj+3cV/NPolG900qLSa6 uPqJ289EQ86LrHIHXCEWRKYvwy77GFsmBYjKZH8yXpdzUlSGNexV8eIMAz50figu wYRJGmHrRqwuzFwEGknv8SA3s2HVggXO4WVkWWCeJyO8nIVfYFUhME5l6Q== =+Hh0 -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull more KVM updates from Paolo Bonzini: "The guest side of the asynchronous page fault work has been delayed to 5.9 in order to sync with Thomas's interrupt entry rework, but here's the rest of the KVM updates for this merge window. MIPS: - Loongson port PPC: - Fixes ARM: - Fixes x86: - KVM_SET_USER_MEMORY_REGION optimizations - Fixes - Selftest fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (62 commits) KVM: x86: do not pass poisoned hva to __kvm_set_memory_region KVM: selftests: fix sync_with_host() in smm_test KVM: async_pf: Inject 'page ready' event only if 'page not present' was previously injected KVM: async_pf: Cleanup kvm_setup_async_pf() kvm: i8254: remove redundant assignment to pointer s KVM: x86: respect singlestep when emulating instruction KVM: selftests: Don't probe KVM_CAP_HYPERV_ENLIGHTENED_VMCS when nested VMX is unsupported KVM: selftests: do not substitute SVM/VMX check with KVM_CAP_NESTED_STATE check KVM: nVMX: Consult only the "basic" exit reason when routing nested exit KVM: arm64: Move hyp_symbol_addr() to kvm_asm.h KVM: arm64: Synchronize sysreg state on injecting an AArch32 exception KVM: arm64: Make vcpu_cp1x() work on Big Endian hosts KVM: arm64: Remove host_cpu_context member from vcpu structure KVM: arm64: Stop sparse from moaning at __hyp_this_cpu_ptr KVM: arm64: Handle PtrAuth traps early KVM: x86: Unexport x86_fpu_cache and make it static KVM: selftests: Ignore KVM 5-level paging support for VM_MODE_PXXV48_4K KVM: arm64: Save the host's PtrAuth keys in non-preemptible context KVM: arm64: Stop save/restoring ACTLR_EL1 KVM: arm64: Add emulation for 32bit guests accessing ACTLR2 ... |
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Linus Torvalds
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b791d1bdf9 |
The Kernel Concurrency Sanitizer (KCSAN)
KCSAN is a dynamic race detector, which relies on compile-time instrumentation, and uses a watchpoint-based sampling approach to detect races. The feature was under development for quite some time and has already found legitimate bugs. Unfortunately it comes with a limitation, which was only understood late in the development cycle: It requires an up to date CLANG-11 compiler CLANG-11 is not yet released (scheduled for June), but it's the only compiler today which handles the kernel requirements and especially the annotations of functions to exclude them from KCSAN instrumentation correctly. These annotations really need to work so that low level entry code and especially int3 text poke handling can be completely isolated. A detailed discussion of the requirements and compiler issues can be found here: https://lore.kernel.org/lkml/CANpmjNMTsY_8241bS7=XAfqvZHFLrVEkv_uM4aDUWE_kh3Rvbw@mail.gmail.com/ We came to the conclusion that trying to work around compiler limitations and bugs again would end up in a major trainwreck, so requiring a working compiler seemed to be the best choice. For Continous Integration purposes the compiler restriction is manageable and that's where most xxSAN reports come from. For a change this limitation might make GCC people actually look at their bugs. Some issues with CSAN in GCC are 7 years old and one has been 'fixed' 3 years ago with a half baken solution which 'solved' the reported issue but not the underlying problem. The KCSAN developers also ponder to use a GCC plugin to become independent, but that's not something which will show up in a few days. Blocking KCSAN until wide spread compiler support is available is not a really good alternative because the continuous growth of lockless optimizations in the kernel demands proper tooling support. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl7im98THHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoQ3xD/9+q87OmwnyoRTs6O3GDDbWZYoJGolh rctDOAYW8RSS73Fiw23z8hKlLl9tJCya6/X8Q9qoonB1YeIEPPRVj5HJWAMUNEIs YgjlZJFmh+mnbP/KQFctm3AWpoX8kqt3ncqj6zG72oQ9qKui691BY/2NmGVSLxUV DqtUYSKmi51XEQtZuXRuHEf3zBxoyeD43DaSCdJAXd6f5O2X7tmrWDuazHVeKzHV lhijvkyBvGMWvPg0IBrXkkLmeOvS0++MTGm3o+L72XF6nWpzTkcV7N0E9GEDFg45 zwcidRVKD5d/1DoU5Tos96rCJpBEGh/wimlu0z14mcZpNiJgRQH5rzVEO9Y14UcP KL9FgRrb5dFw7yfX2zRQ070OFJ4AEDBMK0o5Lbu/QO5KLkvFkqnuWlQfmmtZJWCW DTRw/FgUgU7lvyPjRrao6HBvwy+yTb0u9K5seCOTRkuepR9nPJs0710pFiBsNCfV RY3cyggNBipAzgBOgLxixnq9+rHt70ton6S8Gijxpvt0dGGfO8k0wuEhFtA4zKrQ 6HGK+pidxnoVdEgyQZhS+qzMMkyiUL0FXdaGJ2IX+/DC+Ij1UrUPjZBn7v25M0hQ ESkvxWKCn7snH4/NJsNxqCV1zyEc3zAW/WvLJUc9I7H8zPwtVvKWPrKEMzrJJ5bA aneySilbRxBFUg== =iplm -----END PGP SIGNATURE----- Merge tag 'locking-kcsan-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull the Kernel Concurrency Sanitizer from Thomas Gleixner: "The Kernel Concurrency Sanitizer (KCSAN) is a dynamic race detector, which relies on compile-time instrumentation, and uses a watchpoint-based sampling approach to detect races. The feature was under development for quite some time and has already found legitimate bugs. Unfortunately it comes with a limitation, which was only understood late in the development cycle: It requires an up to date CLANG-11 compiler CLANG-11 is not yet released (scheduled for June), but it's the only compiler today which handles the kernel requirements and especially the annotations of functions to exclude them from KCSAN instrumentation correctly. These annotations really need to work so that low level entry code and especially int3 text poke handling can be completely isolated. A detailed discussion of the requirements and compiler issues can be found here: https://lore.kernel.org/lkml/CANpmjNMTsY_8241bS7=XAfqvZHFLrVEkv_uM4aDUWE_kh3Rvbw@mail.gmail.com/ We came to the conclusion that trying to work around compiler limitations and bugs again would end up in a major trainwreck, so requiring a working compiler seemed to be the best choice. For Continous Integration purposes the compiler restriction is manageable and that's where most xxSAN reports come from. For a change this limitation might make GCC people actually look at their bugs. Some issues with CSAN in GCC are 7 years old and one has been 'fixed' 3 years ago with a half baken solution which 'solved' the reported issue but not the underlying problem. The KCSAN developers also ponder to use a GCC plugin to become independent, but that's not something which will show up in a few days. Blocking KCSAN until wide spread compiler support is available is not a really good alternative because the continuous growth of lockless optimizations in the kernel demands proper tooling support" * tag 'locking-kcsan-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (76 commits) compiler_types.h, kasan: Use __SANITIZE_ADDRESS__ instead of CONFIG_KASAN to decide inlining compiler.h: Move function attributes to compiler_types.h compiler.h: Avoid nested statement expression in data_race() compiler.h: Remove data_race() and unnecessary checks from {READ,WRITE}_ONCE() kcsan: Update Documentation to change supported compilers kcsan: Remove 'noinline' from __no_kcsan_or_inline kcsan: Pass option tsan-instrument-read-before-write to Clang kcsan: Support distinguishing volatile accesses kcsan: Restrict supported compilers kcsan: Avoid inserting __tsan_func_entry/exit if possible ubsan, kcsan: Don't combine sanitizer with kcov on clang objtool, kcsan: Add kcsan_disable_current() and kcsan_enable_current_nowarn() kcsan: Add __kcsan_{enable,disable}_current() variants checkpatch: Warn about data_race() without comment kcsan: Use GFP_ATOMIC under spin lock Improve KCSAN documentation a bit kcsan: Make reporting aware of KCSAN tests kcsan: Fix function matching in report kcsan: Change data_race() to no longer require marking racing accesses kcsan: Move kcsan_{disable,enable}_current() to kcsan-checks.h ... |
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Tobias Klauser
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2c4779eff8 |
tools, bpftool: Exit on error in function codegen
Currently, the codegen function might fail and return an error. But its callers continue without checking its return value. Since codegen can fail only in the unlikely case of the system running out of memory or the static template being malformed, just exit(-1) directly from codegen and make it void-returning. Suggested-by: Andrii Nakryiko <andrii.nakryiko@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200611103341.21532-1-tklauser@distanz.ch |
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Linus Torvalds
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623f6dc593 |
Merge branch 'akpm' (patches from Andrew)
Merge some more updates from Andrew Morton: - various hotfixes and minor things - hch's use_mm/unuse_mm clearnups Subsystems affected by this patch series: mm/hugetlb, scripts, kcov, lib, nilfs, checkpatch, lib, mm/debug, ocfs2, lib, misc. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: kernel: set USER_DS in kthread_use_mm kernel: better document the use_mm/unuse_mm API contract kernel: move use_mm/unuse_mm to kthread.c kernel: move use_mm/unuse_mm to kthread.c stacktrace: cleanup inconsistent variable type lib: test get_count_order/long in test_bitops.c mm: add comments on pglist_data zones ocfs2: fix spelling mistake and grammar mm/debug_vm_pgtable: fix kernel crash by checking for THP support lib: fix bitmap_parse() on 64-bit big endian archs checkpatch: correct check for kernel parameters doc nilfs2: fix null pointer dereference at nilfs_segctor_do_construct() lib/lz4/lz4_decompress.c: document deliberate use of `&' kcov: check kcov_softirq in kcov_remote_stop() scripts/spelling: add a few more typos khugepaged: selftests: fix timeout condition in wait_for_scan() |
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Thomas Gleixner
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37d1a04b13 |
Rebase locking/kcsan to locking/urgent
Merge the state of the locking kcsan branch before the read/write_once() and the atomics modifications got merged. Squash the fallout of the rebase on top of the read/write once and atomic fallback work into the merge. The history of the original branch is preserved in tag locking-kcsan-2020-06-02. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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Vitaly Kuznetsov
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cfb65c15d7 |
KVM: selftests: fix sync_with_host() in smm_test
It was reported that older GCCs compile smm_test in a way that breaks it completely: kvm_exit: reason EXIT_CPUID rip 0x4014db info 0 0 func 7ffffffd idx 830 rax 0 rbx 0 rcx 0 rdx 0, cpuid entry not found ... kvm_exit: reason EXIT_MSR rip 0x40abd9 info 0 0 kvm_msr: msr_read 487 = 0x0 (#GP) ... Note, '7ffffffd' was supposed to be '80000001' as we're checking for SVM. Dropping '-O2' from compiler flags help. Turns out, asm block in sync_with_host() is wrong. We us 'in 0xe, %%al' instruction to sync with the host and in 'AL' register we actually pass the parameter (stage) but after sync 'AL' gets written to but GCC thinks the value is still there and uses it to compute 'EAX' for 'cpuid'. smm_test can't fully use standard ucall() framework as we need to write a very simple SMI handler there. Fix the immediate issue by making RAX input/output operand. While on it, make sync_with_host() static inline. Reported-by: Marcelo Bandeira Condotta <mcondotta@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200610164116.770811-1-vkuznets@redhat.com> Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Vitaly Kuznetsov
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7e464770a4 |
KVM: selftests: Don't probe KVM_CAP_HYPERV_ENLIGHTENED_VMCS when nested VMX is unsupported
KVM_CAP_HYPERV_ENLIGHTENED_VMCS will be reported as supported even when nested VMX is not, fix evmcs_test/hyperv_cpuid tests to check for both. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200610135847.754289-3-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Vitaly Kuznetsov
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41a23ab336 |
KVM: selftests: do not substitute SVM/VMX check with KVM_CAP_NESTED_STATE check
state_test/smm_test use KVM_CAP_NESTED_STATE check as an indicator for nested VMX/SVM presence and this is incorrect. Check for the required features dirrectly. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200610135847.754289-2-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Qing Zhang
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bd2077915b
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spi: tools: Make default_tx/rx and input_tx static
Fix the following sparse warning: ./spidev_test.c:50:9: warning: symbol 'default_tx' was not declared. Should it be static? ./spidev_test.c:59:9: warning: symbol 'default_rx' was not declared. Should it be static? ./spidev_test.c:60:6: warning: symbol 'input_tx' was not declared. Should it be static? Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Link: https://lore.kernel.org/r/1591880212-13479-1-git-send-email-zhangqing@loongson.cn Signed-off-by: Mark Brown <broonie@kernel.org> |
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Tobias Klauser
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d4060ac969 |
tools, bpftool: Fix memory leak in codegen error cases
Free the memory allocated for the template on error paths in function codegen. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200610130804.21423-1-tklauser@distanz.ch |
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YiFei Zhu
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bd6fecb9a9 |
selftests/bpf: Add cgroup_skb/egress test for load_bytes_relative
When cgroup_skb/egress triggers the MAC header is not set. Added a test that asserts reading MAC header is a -EFAULT but NET header succeeds. The test result from within the eBPF program is stored in an 1-element array map that the userspace then reads and asserts on. Another assertion is added that reading from a large offset, past the end of packet, returns -EFAULT. Signed-off-by: YiFei Zhu <zhuyifei@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/bpf/9028ccbea4385a620e69c0a104f469ffd655c01e.1591812755.git.zhuyifei@google.com |
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Dan Carpenter
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9f267a17bf |
khugepaged: selftests: fix timeout condition in wait_for_scan()
The loop exits with "timeout" set to -1 and not to 0 so the test needs to
be fixed.
Fixes: e7b592f6caca ("khugepaged: add self test")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Zi Yan <ziy@nvidia.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Yang Shi <yang.shi@linux.alibaba.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Link: http://lkml.kernel.org/r/20200605110736.GH978434@mwanda
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
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6672966d6c |
More ACPI updates for 5.8-rc1
Update the ACPICA code in the kernel to upstream revision 20200528
with the following changes:
- Remove some dead code from the acpidump utility (Bob Moore).
- Add new OperationRegion subtype keyword PlatformRtMechanism
to the compiler (Erik Kaneda).
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Merge tag 'acpi-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"Update the ACPICA code in the kernel to upstream revision 20200528
with the following changes:
- Remove some dead code from the acpidump utility (Bob Moore)
- Add new OperationRegion subtype keyword PlatformRtMechanism to the
compiler (Erik Kaneda)"
* tag 'acpi-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Update version to 20200528
ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism
ACPICA: acpidump: Removed dead code from oslinuxtbl.c
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Rafael J. Wysocki
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ede439be68 |
Merge branch 'acpica'
* acpica: ACPICA: Update version to 20200528 ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism ACPICA: acpidump: Removed dead code from oslinuxtbl.c |
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Ian Rogers
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85d0f9ad82 |
perf pmu: Remove unused declaration
This avoids multiple declarations if the flex header is included. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200609234344.3795-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Brett Mastbergen
|
47f6bc4ce1 |
tools, bpf: Do not force gcc as CC
This allows transparent cross-compilation with CROSS_COMPILE by relying on |
|
|
Andrii Nakryiko
|
32022fd97e |
libbpf: Handle GCC noreturn-turned-volatile quirk
Handle a GCC quirk of emitting extra volatile modifier in DWARF (and
subsequently preserved in BTF by pahole) for function pointers marked as
__attribute__((noreturn)). This was the way to mark such functions before GCC
2.5 added noreturn attribute. Drop such func_proto modifiers, similarly to how
it's done for array (also to handle GCC quirk/bug).
Such volatile attribute is emitted by GCC only, so existing selftests can't
express such test. Simple repro is like this (compiled with GCC + BTF
generated by pahole):
struct my_struct {
void __attribute__((noreturn)) (*fn)(int);
};
struct my_struct a;
Without this fix, output will be:
struct my_struct {
voidvolatile (*fn)(int);
};
With the fix:
struct my_struct {
void (*fn)(int);
};
Fixes:
|
|
|
Arnaldo Carvalho de Melo
|
8ca8d4a841 |
libbpf: Define __WORDSIZE if not available
Some systems, such as Android, don't have a define for __WORDSIZE, do it in terms of __SIZEOF_LONG__, as done in perf since 2012: http://git.kernel.org/torvalds/c/3f34f6c0233ae055b5 For reference: https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html I build tested it here and Andrii did some Travis CI build tests too. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200608161150.GA3073@kernel.org |
|
|
tannerlove
|
865a6cbb22 |
selftests/net: in rxtimestamp getopt_long needs terminating null entry
getopt_long requires the last element to be filled with zeros.
Otherwise, passing an unrecognized option can cause a segfault.
Fixes:
|
|
|
Jesper Dangaard Brouer
|
042b1545fe |
bpf: Selftests and tools use struct bpf_devmap_val from uapi
Sync tools uapi bpf.h header file and update selftests that use struct bpf_devmap_val. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/159170951195.2102545.1833108712124273987.stgit@firesoul |
|
|
Lorenz Bauer
|
248e00ac47 |
bpf: cgroup: Allow multi-attach program to replace itself
When using BPF_PROG_ATTACH to attach a program to a cgroup in BPF_F_ALLOW_MULTI mode, it is not possible to replace a program with itself. This is because the check for duplicate programs doesn't take the replacement program into account. Replacing a program with itself might seem weird, but it has some uses: first, it allows resetting the associated cgroup storage. Second, it makes the API consistent with the non-ALLOW_MULTI usage, where it is possible to replace a program with itself. Third, it aligns BPF_PROG_ATTACH with bpf_link, where replacing itself is also supported. Sice this code has been refactored a few times this change will only apply to v5.7 and later. Adjustments could be made to commit |
|
|
Linus Torvalds
|
d1e521adad |
Tracing updates for 5.8:
No new features this release. Mostly clean ups, restructuring and
documentation.
- Have ftrace_bug() show ftrace errors before the WARN, as the WARN will
reboot the box before the error messages are printed if panic_on_warn
is set.
- Have traceoff_on_warn disable tracing sooner (before prints)
- Write a message to the trace buffer that its being disabled when
disable_trace_on_warning() is set.
- Separate out synthetic events from histogram code to let it be used by
other parts of the kernel.
- More documentation on histogram design.
- Other small fixes and clean ups.
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Merge tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"No new features this release. Mostly clean ups, restructuring and
documentation.
- Have ftrace_bug() show ftrace errors before the WARN, as the WARN
will reboot the box before the error messages are printed if
panic_on_warn is set.
- Have traceoff_on_warn disable tracing sooner (before prints)
- Write a message to the trace buffer that its being disabled when
disable_trace_on_warning() is set.
- Separate out synthetic events from histogram code to let it be used
by other parts of the kernel.
- More documentation on histogram design.
- Other small fixes and clean ups"
* tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Remove obsolete PREEMPTIRQ_EVENTS kconfig option
tracing/doc: Fix ascii-art in histogram-design.rst
tracing: Add a trace print when traceoff_on_warning is triggered
ftrace,bug: Improve traceoff_on_warn
selftests/ftrace: Distinguish between hist and synthetic event checks
tracing: Move synthetic events to a separate file
tracing: Fix events.rst section numbering
tracing/doc: Fix typos in histogram-design.rst
tracing: Add hist_debug trace event files for histogram debugging
tracing: Add histogram-design document
tracing: Check state.disabled in synth event trace functions
tracing/probe: reverse arguments to list_add
tools/bootconfig: Add a summary of test cases and return error
ftrace: show debugging information when panic_on_warn set
|
|
|
Linus Torvalds
|
595a56ac1b |
linux-kselftest-kunit-5.8-rc1
This Kunit update for Linux 5.8-rc1 consists of:
- Several config fragment fixes from Anders Roxell to improve
test coverage.
- Improvements to kunit run script to use defconfig as default and
restructure the code for config/build/exec/parse from Vitor Massaru Iha
and David Gow.
- Miscellaneous documentation warn fix.
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Merge tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit updates from Shuah Khan:
"This consists of:
- Several config fragment fixes from Anders Roxell to improve test
coverage.
- Improvements to kunit run script to use defconfig as default and
restructure the code for config/build/exec/parse from Vitor Massaru
Iha and David Gow.
- Miscellaneous documentation warn fix"
* tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
security: apparmor: default KUNIT_* fragments to KUNIT_ALL_TESTS
fs: ext4: default KUNIT_* fragments to KUNIT_ALL_TESTS
drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTS
lib: Kconfig.debug: default KUNIT_* fragments to KUNIT_ALL_TESTS
kunit: default KUNIT_* fragments to KUNIT_ALL_TESTS
kunit: Kconfig: enable a KUNIT_ALL_TESTS fragment
kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig
kunit: use KUnit defconfig by default
kunit: use --build_dir=.kunit as default
Documentation: test.h - fix warnings
kunit: kunit_tool: Separate out config/build/exec/parse
|
|
|
Linus Torvalds
|
fc2fb38c85 |
linux-kselftest-5.8-rc1
This Kselftest update for Linux 5.8-rc1 consists of:
- Several fixes from Masami Hiramatsu to improve coverage for
lib and sysctl tests.
- Clean up to vdso test and a new test for getcpu() from Mark Brown.
- Add new gen_tar selftests Makefile target generate selftest package
running "make gen_tar" in selftests directory from Veronika Kabatova.
- Other miscellaneous fixes to timens, exec, tpm2 tests.
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Merge tag 'linux-kselftest-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
"This consists of:
- Several fixes from Masami Hiramatsu to improve coverage for lib and
sysctl tests.
- Clean up to vdso test and a new test for getcpu() from Mark Brown.
- Add new gen_tar selftests Makefile target generate selftest package
running "make gen_tar" in selftests directory from Veronika
Kabatova.
- Other miscellaneous fixes to timens, exec, tpm2 tests"
* tag 'linux-kselftest-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/sysctl: Make sysctl test driver as a module
selftests/sysctl: Fix to load test_sysctl module
lib: Make test_sysctl initialized as module
lib: Make prime number generator independently selectable
selftests/ftrace: Return unsupported if no error_log file
selftests/ftrace: Use printf for backslash included command
selftests/timens: handle a case when alarm clocks are not supported
Kernel selftests: Add check if TPM devices are supported
selftests: vdso: Add a selftest for vDSO getcpu()
selftests: vdso: Use a header file to prototype parse_vdso API
selftests: vdso: Rename vdso_test to vdso_test_gettimeofday
selftests/exec: Verify execve of non-regular files fail
selftests: introduce gen_tar Makefile target
|
|
|
Dmitry Safonov
|
2062a4e8ae |
kallsyms/printk: add loglvl to print_ip_sym()
Patch series "Add log level to show_stack()", v3. Add log level argument to show_stack(). Done in three stages: 1. Introducing show_stack_loglvl() for every architecture 2. Migrating old users with an explicit log level 3. Renaming show_stack_loglvl() into show_stack() Justification: - It's a design mistake to move a business-logic decision into platform realization detail. - I have currently two patches sets that would benefit from this work: Removing console_loglevel jumps in sysrq driver [1] Hung task warning before panic [2] - suggested by Tetsuo (but he probably didn't realise what it would involve). - While doing (1), (2) the backtraces were adjusted to headers and other messages for each situation - so there won't be a situation when the backtrace is printed, but the headers are missing because they have lesser log level (or the reverse). - As the result in (2) plays with console_loglevel for kdb are removed. The least important for upstream, but maybe still worth to note that every company I've worked in so far had an off-list patch to print backtrace with the needed log level (but only for the architecture they cared about). If you have other ideas how you will benefit from show_stack() with a log level - please, reply to this cover letter. See also discussion on v1: https://lore.kernel.org/linux-riscv/20191106083538.z5nlpuf64cigxigh@pathway.suse.cz/ This patch (of 50): print_ip_sym() needs to have a log level parameter to comply with other parts being printed. Otherwise, half of the expected backtrace would be printed and other may be missing with some logging level. The following callee(s) are using now the adjusted log level: - microblaze/unwind: the same level as headers & userspace unwind. Note that pr_debug()'s there are for debugging the unwinder itself. - nds32/traps: symbol addresses are printed with the same log level as backtrace headers. - lockdep: ip for locking issues is printed with the same log level as other part of the warning. - sched: ip where preemption was disabled is printed as error like the rest part of the message. - ftrace: bug reports are now consistent in the log level being used. Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Ben Segall <bsegall@google.com> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Burton <paulburton@kernel.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Will Deacon <will@kernel.org> Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: Dmitry Safonov <dima@arista.com> Cc: Jiri Slaby <jslaby@suse.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com> Cc: Mark Salter <msalter@redhat.com> Cc: Guo Ren <guoren@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Brian Cain <bcain@codeaurora.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ley Foon Tan <lftan@altera.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Len Brown <len.brown@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Douglas Anderson <dianders@chromium.org> Cc: Jason Wessel <jason.wessel@windriver.com> Link: http://lkml.kernel.org/r/20200418201944.482088-2-dima@arista.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Ian Rogers
|
ffaecd7d1f |
perf parse-events: Fix an old style declaration
Fixes:
|
|
|
Ian Rogers
|
c2412fae3f |
perf parse-events: Fix an incompatible pointer
Arrays are pointer types and don't need their address taking.
Fixes:
|
|
|
Sumanth Korikkar
|
d38c692f16 |
perf bpf: Fix bpf prologue generation
Issue:
bpf_probe_read() is no longer available for architecture which has
overlapping address space. Hence bpf prologue generation fails
Fix:
Use bpf_probe_read_kernel for kernel member access. For user attribute
access in kprobes, use bpf_probe_read_user.
Other:
@user attribute was introduced in commit
|
|
|
Sumanth Korikkar
|
9256c3031e |
perf probe: Fix user attribute access in kprobes
Issue: # perf probe -a 'do_sched_setscheduler pid policy param->sched_priority@user' did not work before. Fix: Make: # perf probe -a 'do_sched_setscheduler pid policy param->sched_priority@user' output equivalent to ftrace: # echo 'p:probe/do_sched_setscheduler _text+517384 pid=%r2:s32 policy=%r3:s32 sched_priority=+u0(%r4):s32' > /sys/kernel/debug/tracing/kprobe_events Other: 1. Right now, __match_glob() does not handle [u]<offset>. For now, use *u]<offset>. 2. @user attribute was introduced in commit |
|
|
Hongbo Yao
|
c0c652fc70 |
perf stat: Fix NULL pointer dereference
If config->aggr_map is NULL and config->aggr_get_id is not NULL,
the function print_aggr() will still calling arrg_update_shadow(),
which can result in accessing the invalid pointer.
Fixes:
|
|
|
Gaurav Singh
|
11b6e5482e |
perf report: Fix NULL pointer dereference in hists__fprintf_nr_sample_events()
The 'evname' variable can be NULL, as it is checked a few lines back,
check it before using.
Fixes:
|
|
|
Arnaldo Carvalho de Melo
|
dd76c30295 |
tools headers UAPI: Sync kvm.h headers with the kernel sources
To pick the changes in: |
|
|
Arnaldo Carvalho de Melo
|
377cb673cf |
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
To pick the change in: |
|
|
Arnaldo Carvalho de Melo
|
d8e1ef6772 |
tools headers UAPI: Sync linux/fscrypt.h with the kernel sources
To pick the changes from:
|
|
|
Arnaldo Carvalho de Melo
|
5d33cbfedb |
perf beauty: Add support to STATX_MNT_ID in the 'statx' syscall 'mask' argument
Introduced in:
|
|
|
Arnaldo Carvalho de Melo
|
93dc627f48 |
tools headers uapi: Sync linux/stat.h with the kernel sources
To pick the changes from: |
|
|
Arnaldo Carvalho de Melo
|
7e579f3a07 |
tools arch x86 uapi: Synch asm/unistd.h with the kernel sources
To pick up the change in:
|
|
|
Arnaldo Carvalho de Melo
|
6c3c184fc4 |
tools headers API: Update faccessat2 affected files
Update the copies of files affected by:
|
|
|
Sean Christopherson
|
2067028512 |
KVM: selftests: Ignore KVM 5-level paging support for VM_MODE_PXXV48_4K
Explicitly set the VA width to 48 bits for the x86_64-only PXXV48_4K VM
mode instead of asserting the guest VA width is 48 bits. The fact that
KVM supports 5-level paging is irrelevant unless the selftests opt-in to
5-level paging by setting CR4.LA57 for the guest. The overzealous
assert prevents running the selftests on a kernel with 5-level paging
enabled.
Incorporate LA57 into the assert instead of removing the assert entirely
as a sanity check of KVM's CPUID output.
Fixes:
|
|
|
tannerlove
|
8027bc0307 |
selftests/net: in timestamping, strncpy needs to preserve null byte
If user passed an interface option longer than 15 characters, then
device.ifr_name and hwtstamp.ifr_name became non-null-terminated
strings. The compiler warned about this:
timestamping.c:353:2: warning: ‘strncpy’ specified bound 16 equals \
destination size [-Wstringop-truncation]
353 | strncpy(device.ifr_name, interface, sizeof(device.ifr_name));
Fixes:
|
|
|
Pooja Trivedi
|
0e6fbe39bd |
net/tls(TLS_SW): Add selftest for 'chunked' sendfile test
This selftest tests for cases where sendfile's 'count' parameter is provided with a size greater than the intended file size. Motivation: When sendfile is provided with 'count' parameter value that is greater than the size of the file, kTLS example fails to send the file correctly. Last chunk of the file is not sent, and the data integrity is compromised. The reason is that the last chunk has MSG_MORE flag set because of which it gets added to pending records, but is not pushed. Note that if user space were to send SSL_shutdown control message, pending records would get flushed and the issue would not happen. So a shutdown control message following sendfile can mask the issue. Signed-off-by: Pooja Trivedi <pooja.trivedi@stackpath.com> Signed-off-by: Mallesham Jatharkonda <mallesham.jatharkonda@oneconvergence.com> Signed-off-by: Josh Tway <josh.tway@stackpath.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Linus Torvalds
|
20b0d06722 |
Merge branch 'akpm' (patches from Andrew)
Merge still more updates from Andrew Morton: "Various trees. Mainly those parts of MM whose linux-next dependents are now merged. I'm still sitting on ~160 patches which await merges from -next. Subsystems affected by this patch series: mm/proc, ipc, dynamic-debug, panic, lib, sysctl, mm/gup, mm/pagemap" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (52 commits) doc: cgroup: update note about conditions when oom killer is invoked module: move the set_fs hack for flush_icache_range to m68k nommu: use flush_icache_user_range in brk and mmap binfmt_flat: use flush_icache_user_range exec: use flush_icache_user_range in read_code exec: only build read_code when needed m68k: implement flush_icache_user_range arm: rename flush_cache_user_range to flush_icache_user_range xtensa: implement flush_icache_user_range sh: implement flush_icache_user_range asm-generic: add a flush_icache_user_range stub mm: rename flush_icache_user_range to flush_icache_user_page arm,sparc,unicore32: remove flush_icache_user_range riscv: use asm-generic/cacheflush.h powerpc: use asm-generic/cacheflush.h openrisc: use asm-generic/cacheflush.h m68knommu: use asm-generic/cacheflush.h microblaze: use asm-generic/cacheflush.h ia64: use asm-generic/cacheflush.h hexagon: use asm-generic/cacheflush.h ... |
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Vlastimil Babka
|
4f2f682d89 |
lib/test_sysctl: support testing of sysctl. boot parameter
Testing is done by a new parameter debug.test_sysctl.boot_int which defaults to 0 and it's expected that the tester passes a boot parameter that sets it to 1. The test checks if it's set to 1. To distinguish true failure from parameter not being set, the test checks /proc/cmdline for the expected parameter, and whether test_sysctl is built-in and not a module. [vbabka@suse.cz: skip the new test if boot_int sysctl is not present] Link: http://lkml.kernel.org/r/305af605-1e60-cf84-fada-6ce1ca37c102@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Kees Cook <keescook@chromium.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-6-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
|
4546cde96f |
tools/testing/selftests/sysctl/sysctl.sh: support CONFIG_TEST_SYSCTL=y
The testing script recommends CONFIG_TEST_SYSCTL=y, but actually only works with CONFIG_TEST_SYSCTL=m. Testing of sysctl setting via boot param however requires the test to be built-in, so make sure the test script supports it. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Kees Cook <keescook@chromium.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-5-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andrii Nakryiko
|
1f2436229b |
selftests/bpf: Fix ringbuf selftest sample counting undeterminism
Fix test race, in which background poll can get either 5 or 6 samples,
depending on timing of notification. Prevent this by open-coding sample
triggering and forcing notification for the very last sample only.
Also switch to using atomic increments and exchanges for more obviously
reliable counting and checking. Additionally, check expected processed sample
counters for single-threaded use cases as well.
Fixes:
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Geert Uytterhoeven
|
9ec8ade812
|
spi: spidev_test: Use %u to format unsigned numbers
Consistently use %u to format unsigned numbers.
For "bits" this doesn't matter that much, as it is "uint8_t".
However, "speed" is "uint32_t", so in case people use "-s -1" to force
the maximum, they would see:
max speed: -1 Hz (4294967 KHz)
While at it, use "k" (kilo) instead of "K" (kelvin) in "kHz".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200608100049.30648-1-geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
|
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Vitaly Kuznetsov
|
75ad6e8002 |
KVM: selftests: fix vmx_preemption_timer_test build with GCC10
GCC10 fails to build vmx_preemption_timer_test:
gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99
-fno-stack-protector -fno-PIE -I../../../../tools/include
-I../../../../tools/arch/x86/include -I../../../../usr/include/
-Iinclude -Ix86_64 -Iinclude/x86_64 -I.. -pthread -no-pie
x86_64/evmcs_test.c ./linux/tools/testing/selftests/kselftest_harness.h
./linux/tools/testing/selftests/kselftest.h
./linux/tools/testing/selftests/kvm/libkvm.a
-o ./linux/tools/testing/selftests/kvm/x86_64/evmcs_test
/usr/bin/ld: ./linux/tools/testing/selftests/kvm/libkvm.a(vmx.o):
./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:603:
multiple definition of `ctrl_exit_rev'; /tmp/ccMQpvNt.o:
./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:603:
first defined here
/usr/bin/ld: ./linux/tools/testing/selftests/kvm/libkvm.a(vmx.o):
./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:602:
multiple definition of `ctrl_pin_rev'; /tmp/ccMQpvNt.o:
./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:602:
first defined here
...
ctrl_exit_rev/ctrl_pin_rev/basic variables are only used in
vmx_preemption_timer_test.c, just move them there.
Fixes:
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Vitaly Kuznetsov
|
5ae1452f5f |
KVM: selftests: Add x86_64/debug_regs to .gitignore
Add x86_64/debug_regs to .gitignore.
Reported-by: Marcelo Bandeira Condotta <mcondotta@redhat.com>
Fixes:
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Linus Torvalds
|
787f74fc50 |
Intel Icelake NTB support, Intel driver bug fixes, and lots of bug fixes
for ntb tests -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEoE9b9c3U2JxX98mqbmZLrHqL0iMFAl7a3aUACgkQbmZLrHqL 0iPmmA//fZ5PuqEfAjsCQjxQjVsvh195pBPL4vcwtpu9R7xDKztoRqOMzHbmvLXK db+E9erWPFESjJFMqH4u3kAVIGvKSRkbjsVH7rhhdgabjB6IAs4nJr+ucvOD1fp+ OO3AJl8cedJurj5yUhCEJ13lT3Y/90YqJLdtqkAi0m9iABH7J54SmxZosVj1XUBt PoIyF1PGXCeVv+v0VTjRsm67kGL4K3dggOPJFPZ56trhLshOlCrcaRt/MzVVMAud P9ZU9h02sp62E87anUhe6TsR6G0BgRbOvvX39VtxoaJjfoMFEBGFzEPEj+3V1tfa jeSM3jE9sCvbFFxuarvyHNoCRY4lntGjzP8lM1sCatSjp5mJnEFSC3tSGyY+cAFr LB2How8Bikrq/PQ/H768UXL9ChYv+T5hsHRcz4yllKkyl9OwJAUpqlvBMJUNIMu3 Yvrhj9oG6EH28dK7nuzNxXIPPjBgkbetCK/jhfn6XZT9jP2p5iXv4qA3bjCsn11E 0cPCXVwMAkwcgVaTuPWdNFILXGfijcwfpBlsgHak0MvureQz+ANVJqWpZwJyWQB5 aiLr0xzW9qTVfX+vGAopHAoFD2If1eS/wTqqXF5TYbZT8/cuwjzGEl8aIPEP1ldz Jyy/tVK97Lk8S6ZXceQucugAy4CKAIcRmlulkxYjH6fbVf2jyfo= =cp25 -----END PGP SIGNATURE----- Merge tag 'ntb-5.8' of git://github.com/jonmason/ntb Pull NTB updates from Jon Mason: "Intel Icelake NTB support, Intel driver bug fixes, and lots of bug fixes for ntb tests" * tag 'ntb-5.8' of git://github.com/jonmason/ntb: NTB: ntb_test: Fix bug when counting remote files NTB: perf: Fix race condition when run with ntb_test NTB: perf: Fix support for hardware that doesn't have port numbers NTB: perf: Don't require one more memory window than number of peers NTB: ntb_pingpong: Choose doorbells based on port number NTB: Fix the default port and peer numbers for legacy drivers NTB: Revert the change to use the NTB device dev for DMA allocations NTB: ntb_tool: reading the link file should not end in a NULL byte ntb_perf: avoid false dma unmap of destination address ntb_perf: increase sleep time from one milli sec to one sec ntb_tool: pass correct struct device to dma_alloc_coherent ntb_perf: pass correct struct device to dma_alloc_coherent ntb: hw: remove the code that sets the DMA mask NTB: correct ntb_peer_spad_addr and ntb_peer_spad_read comment typos ntb: intel: fix static declaration ntb: intel: add hw workaround for NTB BAR alignment ntb: intel: Add Icelake (gen4) support for Intel NTB NTB: Fix static check warning in perf_clear_test include/ntb: Fix typo in ntb_unregister_device description |
|
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Linus Torvalds
|
3b69e8b457 |
Fix for arch/sh build regression with newer binutils, removal of SH5,
fixes for module exports, and misc cleanup. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJe28l0AAoJELcQ+SIFb8HaKFMH/0T7tHfWit4+efmeDLhfrewd Fq9lLnEGmLy82AZqmd730gvD2ckbjUCm0ikKC79sCd14r3bIB1RCDKfXbY6rB3uI EDijbkzsjfOYG9ZAiDYTIbyrM2u2/1PzFiYTxHVDtPLbCPGfacbcfrDL+u143IXP ez/RHGLE6uYDvKi0Y0/VDKgMCW9bNlcEkL2/tKFVg2cipDi2Lfmi3Jss/id+5uOI N8XeZoyHjyWr7GeRZwN/hNPLDvLY//Uf5q6RB9VrTsN4Vrja7kjWMZkgsGkmGbNo f6BbLenq+KMfOSJrIzS3MgTRinoqRF5S518pkbGtgRQn0rZKfd6h85DG15RlPGk= =Ktnp -----END PGP SIGNATURE----- Merge tag 'sh-for-5.8' of git://git.libc.org/linux-sh Pull arch/sh updates from Rich Felker: "Fix for arch/sh build regression with newer binutils, removal of SH5, fixes for module exports, and misc cleanup" * tag 'sh-for-5.8' of git://git.libc.org/linux-sh: sh: remove sh5 support sh: add missing EXPORT_SYMBOL() for __delay sh: Convert ins[bwl]/outs[bwl] macros to inline functions sh: Convert iounmap() macros to inline functions sh: Add missing DECLARE_EXPORT() for __ashiftrt_r4_xx sh: configs: Cleanup old Kconfig IO scheduler options arch/sh: vmlinux.scr sh: Replace CONFIG_MTD_M25P80 with CONFIG_MTD_SPI_NOR in sh7757lcr_defconfig sh: sh4a: Bring back tmu3_device early device |
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|
Logan Gunthorpe
|
2130c0ba69 |
NTB: ntb_test: Fix bug when counting remote files
When remote files are counted in get_files_count, without using SSH,
the code returns 0 because there is a colon prepended to $LOC. $VPATH
should have been used instead of $LOC.
Fixes:
|
|
|
Linus Torvalds
|
3f7e82379f |
This is the bulk of GPIO changes for the v5.8 kernel cycle.
Core changes:
- A new GPIO aggregator driver has been merged: this can
join a few select GPIO lines into a new aggregated GPIO
chip. This can be used for security: a process can be
granted access to only these lines, for example for
industrial control. Another way to use this is to
reexpose certain select lines to a virtual machine or
container.
- Warn if the gpio-line-names is too long in he DT parser
core.
- GPIO lines can now be looked up by line name in addition
to being looked up by offset.
New drivers:
- A new generic regmap GPIO driver has been merged. Too
many regmap drivers are starting to look like each other
so we need to create some common ground and try to move
drivers over to using that.
- The F7188X driver now supports F81865.
Driver improvements:
- Large improvements to the PCA953x expander, get multiple lines
and several cleanups.
- Large improvements to the DesignWare DWAPB driver, and Sergey
Semin has volunteered to maintain it.
- PL061 can now be built as a module, this is part of a bigger
effort to make the ARM platforms more modular.
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Merge tag 'gpio-v5.8-1' 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 v5.8 kernel cycle.
Core changes:
- A new GPIO aggregator driver has been merged: this can join a few
select GPIO lines into a new aggregated GPIO chip. This can be used
for security: a process can be granted access to only these lines,
for example for industrial control. Another way to use this is to
reexpose certain select lines to a virtual machine or container.
- Warn if the gpio-line-names is too long in he DT parser core.
- GPIO lines can now be looked up by line name in addition to being
looked up by offset.
New drivers:
- A new generic regmap GPIO driver has been merged. Too many regmap
drivers are starting to look like each other so we need to create
some common ground and try to move drivers over to using that.
- The F7188X driver now supports F81865.
Driver improvements:
- Large improvements to the PCA953x expander, get multiple lines and
several cleanups.
- Large improvements to the DesignWare DWAPB driver, and Sergey Semin
has volunteered to maintain it.
- PL061 can now be built as a module, this is part of a bigger effort
to make the ARM platforms more modular"
* tag 'gpio-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
gpio: pca953x: Drop unneeded ACPI_PTR()
MAINTAINERS: Add gpio regmap section
gpio: add a reusable generic gpio_chip using regmap
gpiolib: Introduce gpiochip_irqchip_add_domain()
gpio: gpiolib: Allow GPIO IRQs to lazy disable
gpiolib: Separate GPIO_GET_LINEINFO_WATCH_IOCTL conditional
gpio: rcar: Fix runtime PM imbalance on error
gpio: pca935x: Allow IRQ support for driver built as a module
gpio: pxa: Add COMPILE_TEST support
dt-bindings: gpio: Add renesas,em-gio bindings
MAINTAINERS: Fix file name for DesignWare GPIO DT schema
gpio: dwapb: Remove unneeded has_irq member in struct dwapb_port_property
gpio: dwapb: Don't use IRQ 0 as valid Linux interrupt
gpio: dwapb: avoid error message for optional IRQ
gpio: dwapb: Call acpi_gpiochip_free_interrupts() on GPIO chip de-registration
gpio: max730x: bring gpiochip_add_data after port config
MAINTAINERS: Add GPIO Aggregator section
docs: gpio: Add GPIO Aggregator documentation
gpio: Add GPIO Aggregator
gpiolib: Add support for GPIO lookup by line name
...
|
|
|
Linus Torvalds
|
7ae77150d9 |
powerpc updates for 5.8
- Support for userspace to send requests directly to the on-chip GZIP
accelerator on Power9.
- Rework of our lockless page table walking (__find_linux_pte()) to make it
safe against parallel page table manipulations without relying on an IPI for
serialisation.
- A series of fixes & enhancements to make our machine check handling more
robust.
- Lots of plumbing to add support for "prefixed" (64-bit) instructions on
Power10.
- Support for using huge pages for the linear mapping on 8xx (32-bit).
- Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound driver.
- Removal of some obsolete 40x platforms and associated cruft.
- Initial support for booting on Power10.
- Lots of other small features, cleanups & fixes.
Thanks to:
Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Andrey Abramov,
Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent Abali, Cédric Le
Goater, Chen Zhou, Christian Zigotzky, Christophe JAILLET, Christophe Leroy,
Dmitry Torokhov, Emmanuel Nicolet, Erhard F., Gautham R. Shenoy, Geoff Levand,
George Spelvin, Greg Kurz, Gustavo A. R. Silva, Gustavo Walbon, Haren Myneni,
Hari Bathini, Joel Stanley, Jordan Niethe, Kajol Jain, Kees Cook, Leonardo
Bras, Madhavan Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael
Neuling, Michal Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao,
Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram
Pai, Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler, Wolfram
Sang, Xiongfeng Wang.
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Merge tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Support for userspace to send requests directly to the on-chip GZIP
accelerator on Power9.
- Rework of our lockless page table walking (__find_linux_pte()) to
make it safe against parallel page table manipulations without
relying on an IPI for serialisation.
- A series of fixes & enhancements to make our machine check handling
more robust.
- Lots of plumbing to add support for "prefixed" (64-bit) instructions
on Power10.
- Support for using huge pages for the linear mapping on 8xx (32-bit).
- Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound
driver.
- Removal of some obsolete 40x platforms and associated cruft.
- Initial support for booting on Power10.
- Lots of other small features, cleanups & fixes.
Thanks to: Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan,
Andrey Abramov, Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent
Abali, Cédric Le Goater, Chen Zhou, Christian Zigotzky, Christophe
JAILLET, Christophe Leroy, Dmitry Torokhov, Emmanuel Nicolet, Erhard F.,
Gautham R. Shenoy, Geoff Levand, George Spelvin, Greg Kurz, Gustavo A.
R. Silva, Gustavo Walbon, Haren Myneni, Hari Bathini, Joel Stanley,
Jordan Niethe, Kajol Jain, Kees Cook, Leonardo Bras, Madhavan
Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Michal
Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin,
Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram Pai,
Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler,
Wolfram Sang, Xiongfeng Wang.
* tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (299 commits)
powerpc/pseries: Make vio and ibmebus initcalls pseries specific
cxl: Remove dead Kconfig options
powerpc: Add POWER10 architected mode
powerpc/dt_cpu_ftrs: Add MMA feature
powerpc/dt_cpu_ftrs: Enable Prefixed Instructions
powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected
powerpc: Add support for ISA v3.1
powerpc: Add new HWCAP bits
powerpc/64s: Don't set FSCR bits in INIT_THREAD
powerpc/64s: Save FSCR to init_task.thread.fscr after feature init
powerpc/64s: Don't let DT CPU features set FSCR_DSCR
powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG
powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel
powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations
powerpc/module_64: Consolidate ftrace code
powerpc/32: Disable KASAN with pages bigger than 16k
powerpc/uaccess: Don't set KUEP by default on book3s/32
powerpc/uaccess: Don't set KUAP by default on book3s/32
powerpc/8xx: Reduce time spent in allow_user_access() and friends
...
|
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|
Vitaly Kuznetsov
|
b80db73dc8 |
KVM: selftests: Fix build with "make ARCH=x86_64"
Marcelo reports that kvm selftests fail to build with
"make ARCH=x86_64":
gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99
-fno-stack-protector -fno-PIE -I../../../../tools/include
-I../../../../tools/arch/x86_64/include -I../../../../usr/include/
-Iinclude -Ilib -Iinclude/x86_64 -I.. -c lib/kvm_util.c
-o /var/tmp/20200604202744-bin/lib/kvm_util.o
In file included from lib/kvm_util.c:11:
include/x86_64/processor.h:14:10: fatal error: asm/msr-index.h: No such
file or directory
#include <asm/msr-index.h>
^~~~~~~~~~~~~~~~~
compilation terminated.
"make ARCH=x86", however, works. The problem is that arch specific headers
for x86_64 live in 'tools/arch/x86/include', not in
'tools/arch/x86_64/include'.
Fixes:
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Bob Moore
|
d82faa0825 |
ACPICA: acpidump: Removed dead code from oslinuxtbl.c
ACPICA commit 4d938d048790983b8b4252b0f4aeec59dabb476c ACPICA BZ 1119. Link: https://github.com/acpica/acpica/commit/4d938d04 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Linus Torvalds
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886d7de631 |
Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton: - More MM work. 100ish more to go. Mike Rapoport's "mm: remove __ARCH_HAS_5LEVEL_HACK" series should fix the current ppc issue - Various other little subsystems * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (127 commits) lib/ubsan.c: fix gcc-10 warnings tools/testing/selftests/vm: remove duplicate headers selftests: vm: pkeys: fix multilib builds for x86 selftests: vm: pkeys: use the correct page size on powerpc selftests/vm/pkeys: override access right definitions on powerpc selftests/vm/pkeys: test correct behaviour of pkey-0 selftests/vm/pkeys: introduce a sub-page allocator selftests/vm/pkeys: detect write violation on a mapped access-denied-key page selftests/vm/pkeys: associate key on a mapped page and detect write violation selftests/vm/pkeys: associate key on a mapped page and detect access violation selftests/vm/pkeys: improve checks to determine pkey support selftests/vm/pkeys: fix assertion in test_pkey_alloc_exhaust() selftests/vm/pkeys: fix number of reserved powerpc pkeys selftests/vm/pkeys: introduce powerpc support selftests/vm/pkeys: introduce generic pkey abstractions selftests: vm: pkeys: use the correct huge page size selftests/vm/pkeys: fix alloc_random_pkey() to make it really random selftests/vm/pkeys: fix assertion in pkey_disable_set/clear() selftests/vm/pkeys: fix pkey_disable_clear() selftests: vm: pkeys: add helpers for pkey bits ... |
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Jagadeesh Pagadala
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2792d488a2 |
tools/testing/selftests/vm: remove duplicate headers
Code cleanup: Remove duplicate headers which are included twice. Signed-off-by: Jagadeesh Pagadala <jagdsh.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Brian Geffon <bgeffon@google.com> Link: http://lkml.kernel.org/r/1587278984-18847-1-git-send-email-jagdsh.linux@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sandipan Das
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f21fda8f64 |
selftests: vm: pkeys: fix multilib builds for x86
This ensures that both 32-bit and 64-bit binaries are generated when this is built on a x86_64 system. Most of the changes have been borrowed from tools/testing/selftests/x86/Makefile. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Dave Hansen <dave.hansen@intel.com> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/0326a442214d7a1b970d38296e63df3b217f5912.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sandipan Das
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473c3cc86c |
selftests: vm: pkeys: use the correct page size on powerpc
Both 4K and 64K pages are supported on powerpc. Parts of the selftest code perform alignment computations based on the PAGE_SIZE macro which is currently hardcoded to 64K for powerpc. This causes some test failures on kernels configured with 4K page size. In some cases, we need to enforce function alignment on page size. Since this can only be done at build time, 64K is used as the alignment factor as that also ensures 4K alignment. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/5dcdfbf3353acdc90f315172e800b49f5ca21299.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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e9506394a1 |
selftests/vm/pkeys: override access right definitions on powerpc
Some platforms hardcode the x86 values for PKEY_DISABLE_ACCESS and PKEY_DISABLE_WRITE such as those in: /usr/include/bits/mman-shared.h. This overrides the definitions with correct values for powerpc. [sandipan@linux.ibm.com: fix powerpc access right definitions] Link: http://lkml.kernel.org/r/1ba86fd8a94f38131cfe2d9f277001dd1ad1d34e.1588959697.git.sandipan@linux.ibm.com Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/f6eb38cb3a1e12eb2cdc9da6300bc5a5dfba0db9.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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fa17437cb8 |
selftests/vm/pkeys: test correct behaviour of pkey-0
Ensure that pkey-0 is allocated on start and that it can be attached dynamically in various modes, without failures. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/9b7c54a9b4261894fe0c7e884c70b87214ff8fbb.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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6e2c2d0fb7 |
selftests/vm/pkeys: introduce a sub-page allocator
This introduces a new allocator that allocates 4K hardware pages to back 64K linux pages. This allocator is available only on powerpc. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/c4a82fa962ec71015b994fab1aaf83bdfd091553.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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4e06e718af |
selftests/vm/pkeys: detect write violation on a mapped access-denied-key page
Detect write-violation on a page to which access-disabled key is associated much after the page is mapped. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/6a7dd4069ee18a2a51b207a55aa197f3f3c59753.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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39351c1326 |
selftests/vm/pkeys: associate key on a mapped page and detect write violation
Detect write-violation on a page to which write-disabled key is associated much after the page is mapped. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/6bfe3b3832f8bcfb07d7f2cf116b45197f4587dd.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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aef759db63 |
selftests/vm/pkeys: associate key on a mapped page and detect access violation
Detect access-violation on a page to which access-disabled key is associated much after the page is mapped. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/4a19cf9252c03dd883887e9002881599e6900d06.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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94c8a223de |
selftests/vm/pkeys: improve checks to determine pkey support
For the pkeys subsystem to work, both the CPU and the kernel need to have support. So, additionally check if the kernel supports pkeys apart from the CPU feature checks. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/8fb76c63ebdadcf068ecd2d23731032e195cd364.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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b0acc5d6bf |
selftests/vm/pkeys: fix assertion in test_pkey_alloc_exhaust()
Some pkeys which are valid on the hardware are reserved and not available for application use. These keys cannot be allocated. test_pkey_alloc_exhaust() tries to account for these and has an assertion which validates if all available pkeys have been exahaustively allocated. However, the expression that is currently used is only valid for x86. On powerpc, a pkey is additionally reserved as compared to x86. Hence, the assertion is made to use an arch-specific helper to get the correct count of reserved pkeys. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/38b08d0318820ae46af3aa6048384fd8056c3df7.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Desnes A. Nunes do Rosario
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c63e5e7f99 |
selftests/vm/pkeys: fix number of reserved powerpc pkeys
The number of reserved pkeys in a PowerNV environment is different from that on PowerVM or KVM. Tested on PowerVM and PowerNV environments. Signed-off-by: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/0341a0ca961166814b44c9e724774672c18d54ca.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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589944b53b |
selftests/vm/pkeys: introduce powerpc support
This makes use of the abstractions added earlier and introduces support for powerpc. For powerpc, after receiving the SIGSEGV, the signal handler must explicitly restore access permissions for the faulting pkey to allow the test to continue. As this makes use of pkey_access_allow(), all of its dependencies and other similar functions have been moved ahead of the signal handler. [sandipan@linux.ibm.com: fix powerpc access right updates] Link: http://lkml.kernel.org/r/5f65cf37be993760de8112a88da194e3ccbb2bf8.1588959697.git.sandipan@linux.ibm.com Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/b121e9fd33789ed9195276e32fe4e80bb6b88a31.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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604c496b22 |
selftests/vm/pkeys: introduce generic pkey abstractions
This introduces some generic abstractions and provides the corresponding architecture-specfic implementations for these abstractions. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/1c977915e69fb7767fb0dbd55ac7656554b15b93.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sandipan Das
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57bcb57da2 |
selftests: vm: pkeys: use the correct huge page size
The huge page size can vary across architectures. This will ensure that the correct huge page size is used when accessing the hugetlb controls under sysfs. Instead of using a hardcoded page size (i.e. 2MB), this now uses the HPAGE_SIZE macro which is arch-specific. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/66882a5d6e45c73c3a52bc4aef9754e48afa4f88.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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6e373263ce |
selftests/vm/pkeys: fix alloc_random_pkey() to make it really random
alloc_random_pkey() was allocating the same pkey every time. Not all pkeys were geting tested. This fixes it. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/0162f55816d4e783a0d6e49e554d0ab9a3c9a23b.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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ea5f95c3d6 |
selftests/vm/pkeys: fix assertion in pkey_disable_set/clear()
In some cases, a pkey's bits need not necessarily change in a way that the value of the pkey register increases when performing a pkey_disable_set() or decreases when performing a pkey_disable_clear(). For example, on powerpc, if a pkey's current state is PKEY_DISABLE_ACCESS and we perform a pkey_write_disable() on it, the bits still remain the same. We will observe something similar when the pkey's current state is 0 and a pkey_access_enable() is performed on it. Either case would cause some assertions to fail. This fixes the problem. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/8240665131e43fc93eed4eea8194676c1ea39a7f.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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11551801a7 |
selftests/vm/pkeys: fix pkey_disable_clear()
Currently, pkey_disable_clear() sets the specified bits instead clearing them. This has been dead code up to now because its only callers i.e. pkey_access/write_allow() are also unused. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/1f70bca60330a85dca42c3cd98212bb1cdf5a076.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sandipan Das
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0c416bcaef |
selftests: vm: pkeys: add helpers for pkey bits
This introduces some functions that help with setting or clearing bits of a particular pkey. This also adds an abstraction for getting a pkey's bit position in the pkey register as this may vary across architectures. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/2ad9705f4f68ca7e72155cc583415e5a979546f1.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Sandipan Das
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4dbdd947cb |
selftests: vm: pkeys: Use sane types for pkey register
The size of the pkey register can vary across architectures. This converts the data type of all its references to u64 in preparation for multi-arch support. To keep the definition of the u64 type consistent and remove format specifier related warnings, __SANE_USERSPACE_TYPES__ is defined as suggested by Michael Ellerman. Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/d3e271798455d940e395e56e1ff1e82a31bcb7aa.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Thiago Jung Bauermann
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a09160e694 |
selftests/vm/pkeys: make gcc check arguments of sigsafe_printf()
This will help us ensure we print pkey_reg_t values correctly in different architectures. Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ram Pai <linuxram@us.ibm.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/b40b7a95fdd4045d62530a2a34452934caf3b0bc.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Thiago Jung Bauermann
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53555e2b4d |
selftests/vm/pkeys: move some definitions to arch-specific header
In preparation for multi-arch support, move definitions which have arch-specific values to x86-specific header. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/d58eba2930059c8b209eefd6d5b48fe922a5b010.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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5461c6625f |
selftests/vm/pkeys: move generic definitions to header file
Moved all the generic definition and helper functions to the header file. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/57177f99e92a51295956715d5f2d5688a4d13927.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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c4273c7f0e |
selftests/vm/pkeys: rename all references to pkru to a generic name
This renames PKRU references to "pkey_reg" or "pkey" based on the usage. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/2c6970bc6d2e99796cd5cc1101bd2ecf7eccb937.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ram Pai
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804eb64615 |
selftests/x86/pkeys: move selftests to arch-neutral directory
Patch series "selftests, powerpc, x86: Memory Protection Keys", v19. Memory protection keys enables an application to protect its address space from inadvertent access by its own code. This feature is now enabled on powerpc and has been available since 4.16-rc1. The patches move the selftests to arch neutral directory and enhance their test coverage. Tested on powerpc64 and x86_64 (Skylake-SP). This patch (of 24): Move selftest files from tools/testing/selftests/x86/ to tools/testing/selftests/vm/. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Shuah Khan <shuah@kernel.org> Link: http://lkml.kernel.org/r/14d25194c3e2e652e0047feec4487e269e76e8c9.1585646528.git.sandipan@linux.ibm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jesse Brandeburg
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c348c16305 |
lib: make a test module with set/clear bit
Test some bit clears/sets to make sure assembly doesn't change, and that the set_bit and clear_bit functions work and don't cause sparse warnings. Instruct Kbuild to build this file with extra warning level -Wextra, to catch new issues, and also doesn't hurt to build with C=1. This was used to test changes to arch/x86/include/asm/bitops.h. In particular, sparse (C=1) was very concerned when the last bit before a natural boundary, like 7, or 31, was being tested, as this causes sign extension (0xffffff7f) for instance when clearing bit 7. Recommended usage: make defconfig scripts/config -m CONFIG_TEST_BITOPS make modules_prepare make C=1 W=1 lib/test_bitops.ko objdump -S -d lib/test_bitops.ko insmod lib/test_bitops.ko rmmod lib/test_bitops.ko <check dmesg>, there should be no compiler/sparse warnings and no error messages in log. Link: http://lkml.kernel.org/r/20200310221747.2848474-2-jesse.brandeburg@intel.com Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> CcL Ingo Molnar <mingo@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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15a2bc4dbb |
Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull execve updates from Eric Biederman: "Last cycle for the Nth time I ran into bugs and quality of implementation issues related to exec that could not be easily be fixed because of the way exec is implemented. So I have been digging into exec and cleanup up what I can. I don't think I have exec sorted out enough to fix the issues I started with but I have made some headway this cycle with 4 sets of changes. - promised cleanups after introducing exec_update_mutex - trivial cleanups for exec - control flow simplifications - remove the recomputation of bprm->cred The net result is code that is a bit easier to understand and work with and a decrease in the number of lines of code (if you don't count the added tests)" * 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (24 commits) exec: Compute file based creds only once exec: Add a per bprm->file version of per_clear binfmt_elf_fdpic: fix execfd build regression selftests/exec: Add binfmt_script regression test exec: Remove recursion from search_binary_handler exec: Generic execfd support exec/binfmt_script: Don't modify bprm->buf and then return -ENOEXEC exec: Move the call of prepare_binprm into search_binary_handler exec: Allow load_misc_binary to call prepare_binprm unconditionally exec: Convert security_bprm_set_creds into security_bprm_repopulate_creds exec: Factor security_bprm_creds_for_exec out of security_bprm_set_creds exec: Teach prepare_exec_creds how exec treats uids & gids exec: Set the point of no return sooner exec: Move handling of the point of no return to the top level exec: Run sync_mm_rss before taking exec_update_mutex exec: Fix spelling of search_binary_handler in a comment exec: Move the comment from above de_thread to above unshare_sighand exec: Rename flush_old_exec begin_new_exec exec: Move most of setup_new_exec into flush_old_exec exec: In setup_new_exec cache current in the local variable me ... |
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Linus Torvalds
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9ff7258575 |
Merge branch 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull proc updates from Eric Biederman: "This has four sets of changes: - modernize proc to support multiple private instances - ensure we see the exit of each process tid exactly - remove has_group_leader_pid - use pids not tasks in posix-cpu-timers lookup Alexey updated proc so each mount of proc uses a new superblock. This allows people to actually use mount options with proc with no fear of messing up another mount of proc. Given the kernel's internal mounts of proc for things like uml this was a real problem, and resulted in Android's hidepid mount options being ignored and introducing security issues. The rest of the changes are small cleanups and fixes that came out of my work to allow this change to proc. In essence it is swapping the pids in de_thread during exec which removes a special case the code had to handle. Then updating the code to stop handling that special case" * 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: proc: proc_pid_ns takes super_block as an argument remove the no longer needed pid_alive() check in __task_pid_nr_ns() posix-cpu-timers: Replace __get_task_for_clock with pid_for_clock posix-cpu-timers: Replace cpu_timer_pid_type with clock_pid_type posix-cpu-timers: Extend rcu_read_lock removing task_struct references signal: Remove has_group_leader_pid exec: Remove BUG_ON(has_group_leader_pid) posix-cpu-timer: Unify the now redundant code in lookup_task posix-cpu-timer: Tidy up group_leader logic in lookup_task proc: Ensure we see the exit of each process tid exactly once rculist: Add hlists_swap_heads_rcu proc: Use PIDTYPE_TGID in next_tgid Use proc_pid_ns() to get pid_namespace from the proc superblock proc: use named enums for better readability proc: use human-readable values for hidepid docs: proc: add documentation for "hidepid=4" and "subset=pid" options and new mount behavior proc: add option to mount only a pids subset proc: instantiate only pids that we can ptrace on 'hidepid=4' mount option proc: allow to mount many instances of proc in one pid namespace proc: rename struct proc_fs_info to proc_fs_opts |
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Linus Torvalds
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38b3a5aaf2 |
perf tools for v5.8:
- Further Intel PT call-trace fixes
- Improve SELinux docs and tool warnings
- Fix race at exit in 'perf record' using eventfd.
- Add missing build tests to the default set of 'make -C tools/perf build-test'
- Sync msr-index.h getting new AMD MSRs to decode and filter in 'perf trace'.
- Fix fallback to libaudit in 'perf trace' for arches not using per-arch *.tbl files.
- Fixes for 'perf ftrace'.
- Fixes and improvements for the 'perf stat' metrics.
- Use dummy event to get PERF_RECORD_{FORK,MMAP,etc} while synthesizing
those metadata events for pre-existing threads.
- Fix leaks detected using clang tooling.
- Improvements to PMU event metric testing.
- Report summary for 'perf stat' interval mode at the end, summing up
all the intervals.
- Improve pipe mode, i.e. this now works as expected, continuously
dumping samples:
# perf record -g -e raw_syscalls:sys_enter | perf --no-pager script
- Fixes for event grouping, detecting incompatible groups such as:
# perf stat -e '{cycles,power/energy-cores/}' -v
WARNING: group events cpu maps do not match, disabling group:
anon group { power/energy-cores/, cycles }
power/energy-cores/: 0
cycles: 0-7
- Fixes for 'perf probe': blacklist address checking, number of
kretprobe instances, etc.
- JIT processing improvements and fixes plus the addition of a 'perf
test' entry for the java demangler.
- Add support for synthesizing first/last level cache, TLB and remove
access events from HW tracing in the auxtrace code, first to use is
ARM SPE.
- Vendor events updates and fixes, including for POWER9 and Intel.
- Allow using ~/.perfconfig for removing the ',' separators in 'perf
stat' output.
- Opt-in support for libpfm4.
=================================================================================
Adrian Hunter (8):
perf intel-pt: Use allocated branch stack for PEBS sample
perf symbols: Fix debuginfo search for Ubuntu
perf kcore_copy: Fix module map when there are no modules loaded
perf evlist: Disable 'immediate' events last
perf script: Fix --call-trace for Intel PT
perf record: Respect --no-switch-events
perf intel-pt: Refine kernel decoding only warning message
perf symbols: Fix kernel maps for kcore and eBPF
Alexey Budankov (3):
perf docs: Extend CAP_SYS_ADMIN with CAP_PERFMON where needed
perf tool: Make perf tool aware of SELinux access control
perf docs: Introduce security.txt file to document related issues
Anand K Mistry (1):
perf record: Use an eventfd to wakeup when done
Andi Kleen (1):
perf script: Don't force less for non tty output with --xed
Arnaldo Carvalho de Melo (21):
perf evsel: Rename perf_evsel__object_config() to evsel__object_config()
perf evsel: Rename perf_evsel__resort*() to evsel__resort*()
perf evsel: Rename perf_evsel__fprintf() to evsel__fprintf()
perf evsel: Rename *perf_evsel__get_config_term() & friends to evsel__env()
perf evsel: Rename perf_evsel__new*() to evsel__new*()
perf evsel: Rename perf_evsel__[hs]w_cache* to evsel__[hs]w_cache*
perf counts: Rename perf_evsel__*counts() to evsel__*counts()
perf parse-events: Fix incorrect conversion of 'if () free()' to 'zfree()'
perf evsel: Initialize evsel->per_pkg_mask to NULL in evsel__init()
tools feature: Rename HAVE_EVENTFD to HAVE_EVENTFD_SUPPORT
perf build: Group the NO_SYSCALL_TABLE logic
perf build: Allow explicitely disabling the NO_SYSCALL_TABLE variable
perf trace: Remove union from syscalltbl, all the fields are needed
perf trace: Use zalloc() to make sure all fields are zeroed in the syscalltbl constructor
perf trace: Grow the syscall table as needed when using libaudit
perf build: Remove libaudit from the default feature checks
perf build: Add NO_SYSCALL_TABLE=1 to the build tests
perf build: Add NO_LIBCRYPTO=1 to the default set of build tests
perf build: Add NO_SDT=1 to the default set of build tests
perf build: Add a LIBPFM4=1 build test entry
tools arch x86: Sync the msr-index.h copy with the kernel sources
Changbin Du (2):
perf ftrace: Trace system wide if no target is given
perf ftrace: Detect workload failure
Ed Maste (1):
perf tools: Correct license on jsmn JSON parser
Gustavo A. R. Silva (2):
perf tools: Replace zero-length array with flexible-array
perf branch: Replace zero-length array with flexible-array
Ian Rogers (38):
perf expr: Allow for unlimited escaped characters in a symbol
perf metrics: Fix parse errors in cascade lake metrics
perf metrics: Fix parse errors in skylake metrics
perf expr: Allow ',' to be an other token
perf expr: Increase max other
perf expr: Parse numbers as doubles
perf expr: Debug lex if debugging yacc
perf metrics: Fix parse errors in power8 metrics
perf metrics: Fix parse errors in power9 metrics
perf expr: Print a debug message for division by zero
perf evsel: Dummy events never triggers, no need to ask for PERF_SAMPLE_BRANCH_STACK
perf record: Add dummy event during system wide synthesis
perf c2c: Fix 'perf c2c record -e list' to show the default events used
perf evsel: Fix 2 memory leaks
perf expr: Test parsing of floating point numbers
perf expr: Fix memory leaks in metric bison
perf parse-events: Make add PMU verbose output clearer
perf test: Provide a subtest callback to ask for the reason for skipping a subtest
perf test: Improve pmu event metric testing
perf trace: Fix the selection for architectures to generate the errno name tables
perf beauty: Allow the CC used in the arch errno names script to acccept CFLAGS
perf tools: Grab a copy of libbpf's hashmap
perf expr: Migrate expr ids table to a hashmap
perf metricgroup: Make 'evlist_used' variable a bitmap instead of array of bools
perf expr: Allow numbers to be followed by a dot
perf metricgroup: Free metric_events on error
perf metricgroup: Always place duration_time last
perf metricgroup: Use early return in add_metric
perf metricgroup: Delay events string creation
perf metricgroup: Order event groups by size
perf metricgroup: Remove duped metric group events
perf metricgroup: Add options to not group or merge
perf metricgroup: Remove unnecessary ',' from events
perf list: Add metrics to command line usage
tools compiler.h: Add attribute to disable tail calls
perf tests: Don't tail call optimize in unwind test
perf test: Initialize memory in dwarf-unwind
perf libdw: Fix off-by 1 relative directory includes
Jin Yao (6):
perf parse-events: Use strcmp() to compare the PMU name
perf stat: Fix wrong per-thread runtime stat for interval mode
perf counts: Reset prev_raw_counts counts
perf stat: Copy counts from prev_raw_counts to evsel->counts
perf stat: Save aggr value to first member of prev_raw_counts
perf stat: Report summary for interval mode
Jiri Olsa (13):
perf tools: Do not display extra info when there is nothing to build
perf tools: Do not seek in pipe fd during tracing data processing
perf session: Try to read pipe data from file
perf callchain: Setup callchain properly in pipe mode
perf script: Enable IP fields for callchains
perf tools: Fix is_bpf_image function logic
perf trace: Fix compilation error for make NO_LIBBPF=1 DEBUG=1
perf stat: Fix duration_time value for higher intervals
perf stat: Fail on extra comma while parsing events
perf tests: Consider subtests when searching for user specified tests
perf stat: Do not pass avg to generic_metric
perf parse: Add 'struct parse_events_state' pointer to scanner
perf stat: Ensure group is defined on top of the same cpu mask
Li Bin (1):
perf util: Fix potential SEGFAULT in put_tracepoints_path error path
Masami Hiramatsu (4):
perf probe: Accept the instance number of kretprobe event
perf probe: Fix to check blacklist address correctly
perf probe: Check address correctness by map instead of _etext
perf probe: Do not show the skipped events
Nick Gasson (6):
perf jvmti: Fix jitdump for methods without debug info
perf jvmti: Do not report error when missing debug information
perf tests: Add test for the java demangler
perf jvmti: Fix demangling Java symbols
perf jvmti: Remove redundant jitdump line table entries
perf jit: Fix inaccurate DWARF line table
Paul A. Clarke (5):
perf stat: Increase perf metric output resolution
perf vendor events power9: Add missing metrics to POWER9 'cpi_breakdown'
perf stat: POWER9 metrics: expand "ICT" acronym
perf script: Better align register values in dump
perf config: Add stat.big-num support
Ravi Bangoria (1):
perf powerpc: Don't ignore sym-handling.c file
Stephane Eranian (1):
perf tools: Add optional support for libpfm4
Tan Xiaojun (3):
perf tools: Move arm-spe-pkt-decoder.h/c to the new dir
perf auxtrace: Add four itrace options
perf arm-spe: Support synthetic events
Tiezhu Yang (1):
perf tools: Remove some duplicated includes
Wang ShaoBo (1):
perf bpf-loader: Add missing '*' for key_scan_pos
Xie XiuQi (1):
perf util: Fix memory leak of prefix_if_not_in
=================================================================================
Test results:
The first ones are container based builds of tools/perf with and without libelf
support. Where clang is available, it is also used to build perf with/without
libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang
when clang and its devel libraries are installed.
The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.
Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.
The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.
Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.
Ubuntu 19.10 is failing when linking against libllvm, which isn't the default,
needs to be investigated, haven't tested with CC=gcc, but should be the same
problem:
+ make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= LIBCLANGLLVM=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
...
/usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_ignoringImpCasts0Matcher::matches(clang::Expr const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
(.text._ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x43): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
/usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_hasLoopVariable0Matcher::matches(clang::CXXForRangeStmt const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
(.text._ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x48): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
...
# export PERF_TARBALL=http://192.168.124.1/perf/perf-5.7.0-rc7.tar.xz
# time dm
1 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
2 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
3 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
4 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
5 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
6 alpine:3.9 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
7 alpine:3.10 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
8 alpine:3.11 : Ok gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
9 alpine:3.12 : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
10 alpine:edge : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (git://git.alpinelinux.org/aports 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
11 alt:p8 : Ok x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
12 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 7.0.1
13 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 9.2.1 20200123 (ALT Sisyphus 9.2.1-alt3), clang version 10.0.0
14 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
15 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
16 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
17 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
18 centos:5 : Ok gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
19 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
20 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
21 centos:8 : Ok gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4), clang version 8.0.1 (Red Hat 8.0.1-1.module_el8.1.0+215+a01033fb)
22 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 9.3.1 20200501 releases/gcc-9.3.0-196-gcb2c76c8b1, clang version 10.0.0
23 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
24 debian:9 : Ok gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
25 debian:10 : Ok gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
26 debian:experimental : FAIL gcc (Debian 9.3.0-13) 9.3.0, clang version 9.0.1-12
27 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0
28 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
29 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0
30 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1 20190909
31 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
32 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
33 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
34 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
35 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
36 fedora:25 : Ok gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
37 fedora:26 : Ok gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
38 fedora:27 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
39 fedora:28 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
40 fedora:29 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29)
41 fedora:30 : Ok gcc (GCC) 9.2.1 20190827 (Red Hat 9.2.1-1), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
42 fedora:30-x-ARC-glibc : Ok arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
43 fedora:30-x-ARC-uClibc : Ok arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
44 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31)
45 fedora:32 : Ok gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-1.fc32)
46 fedora:rawhide : Ok gcc (GCC) 10.0.1 20200216 (Red Hat 10.0.1-0.8), clang version 10.0.0 (Fedora 10.0.0-0.3.rc2.fc33)
47 gentoo-stage3-amd64:latest : Ok gcc (Gentoo 9.2.0-r2 p3) 9.2.0
48 mageia:5 : Ok gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
49 mageia:6 : Ok gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
50 mageia:7 : Ok gcc (Mageia 8.3.1-0.20190524.1.mga7) 8.3.1 20190524, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
51 manjaro:latest : Ok gcc (GCC) 9.2.0, clang version 9.0.0 (tags/RELEASE_900/final)
52 openmandriva:cooker : Ok gcc (GCC) 10.0.0 20200502 (OpenMandriva), clang version 10.0.1
53 opensuse:15.0 : Ok gcc (SUSE Linux) 7.4.1 20190424 [gcc-7-branch revision 270538], clang version 5.0.1 (tags/RELEASE_501/final 312548)
54 opensuse:15.1 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
55 opensuse:15.2 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
56 opensuse:42.3 : Ok gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
57 opensuse:tumbleweed : Ok gcc (SUSE Linux) 9.3.1 20200406 [revision 6db837a5288ee3ca5ec504fbd5a765817e556ac2], clang version 10.0.0
58 oraclelinux:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
59 oraclelinux:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.3)
60 oraclelinux:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d)
61 ubuntu:12.04 : Ok gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
62 ubuntu:14.04 : Ok gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
63 ubuntu:16.04 : Ok gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
64 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
65 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
66 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
67 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
68 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
69 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
70 ubuntu:18.04 : Ok gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
71 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
72 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
73 ubuntu:18.04-x-m68k : Ok m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
74 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
75 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
76 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
77 ubuntu:18.04-x-riscv64 : Ok riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
78 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
79 ubuntu:18.04-x-sh4 : Ok sh4-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
80 ubuntu:18.04-x-sparc64 : Ok sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
81 ubuntu:18.10 : Ok gcc (Ubuntu 8.3.0-6ubuntu1~18.10.1) 8.3.0, clang version 7.0.0-3 (tags/RELEASE_700/final)
82 ubuntu:19.04 : Ok gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0, clang version 8.0.0-3 (tags/RELEASE_800/final)
83 ubuntu:19.04-x-alpha : Ok alpha-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
84 ubuntu:19.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 8.3.0-6ubuntu1) 8.3.0
85 ubuntu:19.04-x-hppa : Ok hppa-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
86 ubuntu:19.10 : FAIL gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 9.0.0-2 (tags/RELEASE_900/final)
87 ubuntu:20.04 : Ok gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1
#
It builds ok with the default set of options.
The "7: Simple expression parser" entry is failing due to a bug in the
hashmap in libbpf that will hit upstream via the bpf tree.
# uname -a
Linux five 5.5.17-200.fc31.x86_64 #1 SMP Mon Apr 13 15:29:42 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
# git log --oneline -1
|
|
|
Linus Torvalds
|
ee01c4d72a |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "More mm/ work, plenty more to come Subsystems affected by this patch series: slub, memcg, gup, kasan, pagealloc, hugetlb, vmscan, tools, mempolicy, memblock, hugetlbfs, thp, mmap, kconfig" * akpm: (131 commits) arm64: mm: use ARCH_HAS_DEBUG_WX instead of arch defined x86: mm: use ARCH_HAS_DEBUG_WX instead of arch defined riscv: support DEBUG_WX mm: add DEBUG_WX support drivers/base/memory.c: cache memory blocks in xarray to accelerate lookup mm/thp: rename pmd_mknotpresent() as pmd_mkinvalid() powerpc/mm: drop platform defined pmd_mknotpresent() mm: thp: don't need to drain lru cache when splitting and mlocking THP hugetlbfs: get unmapped area below TASK_UNMAPPED_BASE for hugetlbfs sparc32: register memory occupied by kernel as memblock.memory include/linux/memblock.h: fix minor typo and unclear comment mm, mempolicy: fix up gup usage in lookup_node tools/vm/page_owner_sort.c: filter out unneeded line mm: swap: memcg: fix memcg stats for huge pages mm: swap: fix vmstats for huge pages mm: vmscan: limit the range of LRU type balancing mm: vmscan: reclaim writepage is IO cost mm: vmscan: determine anon/file pressure balance at the reclaim root mm: balance LRU lists based on relative thrashing mm: only count actual rotations as LRU reclaim cost ... |
|
|
Changhee Han
|
5b94ce2fca |
tools/vm/page_owner_sort.c: filter out unneeded line
To see a sorted result from page_owner, there must be a tiresome preprocessing step before running page_owner_sort. This patch simply filters out lines which start with "PFN" while reading the page owner report. Signed-off-by: Changhee Han <ch0.han@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Jonathan Corbet <corbet@lwn.net> Link: http://lkml.kernel.org/r/20200429052940.16968-1-ch0.han@lge.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Kirill A. Shutemov
|
71a2c112a0 |
khugepaged: introduce 'max_ptes_shared' tunable
'max_ptes_shared' specifies how many pages can be shared across multiple processes. Exceeding the number would block the collapse:: /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_shared A higher value may increase memory footprint for some workloads. By default, at least half of pages has to be not shared. [colin.king@canonical.com: fix several spelling mistakes] Link: http://lkml.kernel.org/r/20200420084241.65433-1-colin.king@canonical.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Zi Yan <ziy@nvidia.com> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Reviewed-by: Zi Yan <ziy@nvidia.com> Acked-by: Yang Shi <yang.shi@linux.alibaba.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Link: http://lkml.kernel.org/r/20200416160026.16538-9-kirill.shutemov@linux.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Kirill A. Shutemov
|
e0c13f9761 |
khugepaged: add self test
Patch series "thp/khugepaged improvements and CoW semantics", v4. The patchset adds khugepaged selftest (anon-THP only for now), expands cases khugepaged can handle and switches anon-THP copy-on-write handling to 4k. This patch (of 8): The test checks if khugepaged is able to recover huge page where we expect to do so. It only covers anon-THP for now. Currently the test shows few failures. They are going to be addressed by the following patches. [colin.king@canonical.com: fix several spelling mistakes] Link: http://lkml.kernel.org/r/20200420084241.65433-1-colin.king@canonical.com [aneesh.kumar@linux.ibm.com: replace the usage of system(3) in the test] Link: http://lkml.kernel.org/r/20200429110727.89388-1-aneesh.kumar@linux.ibm.com [kirill@shutemov.name: fixup for issues I've noticed] Link: http://lkml.kernel.org/r/20200429124816.jp272trghrzxx5j5@box [jhubbard@nvidia.com: add khugepaged to .gitignore] Link: http://lkml.kernel.org/r/20200517002509.362401-1-jhubbard@nvidia.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Zi Yan <ziy@nvidia.com> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Reviewed-by: Zi Yan <ziy@nvidia.com> Acked-by: Yang Shi <yang.shi@linux.alibaba.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: William Kucharski <william.kucharski@oracle.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Link: http://lkml.kernel.org/r/20200416160026.16538-1-kirill.shutemov@linux.intel.com Link: http://lkml.kernel.org/r/20200416160026.16538-2-kirill.shutemov@linux.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Linus Torvalds
|
cb8e59cc87 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
1) Allow setting bluetooth L2CAP modes via socket option, from Luiz
Augusto von Dentz.
2) Add GSO partial support to igc, from Sasha Neftin.
3) Several cleanups and improvements to r8169 from Heiner Kallweit.
4) Add IF_OPER_TESTING link state and use it when ethtool triggers a
device self-test. From Andrew Lunn.
5) Start moving away from custom driver versions, use the globally
defined kernel version instead, from Leon Romanovsky.
6) Support GRO vis gro_cells in DSA layer, from Alexander Lobakin.
7) Allow hard IRQ deferral during NAPI, from Eric Dumazet.
8) Add sriov and vf support to hinic, from Luo bin.
9) Support Media Redundancy Protocol (MRP) in the bridging code, from
Horatiu Vultur.
10) Support netmap in the nft_nat code, from Pablo Neira Ayuso.
11) Allow UDPv6 encapsulation of ESP in the ipsec code, from Sabrina
Dubroca. Also add ipv6 support for espintcp.
12) Lots of ReST conversions of the networking documentation, from Mauro
Carvalho Chehab.
13) Support configuration of ethtool rxnfc flows in bcmgenet driver,
from Doug Berger.
14) Allow to dump cgroup id and filter by it in inet_diag code, from
Dmitry Yakunin.
15) Add infrastructure to export netlink attribute policies to
userspace, from Johannes Berg.
16) Several optimizations to sch_fq scheduler, from Eric Dumazet.
17) Fallback to the default qdisc if qdisc init fails because otherwise
a packet scheduler init failure will make a device inoperative. From
Jesper Dangaard Brouer.
18) Several RISCV bpf jit optimizations, from Luke Nelson.
19) Correct the return type of the ->ndo_start_xmit() method in several
drivers, it's netdev_tx_t but many drivers were using
'int'. From Yunjian Wang.
20) Add an ethtool interface for PHY master/slave config, from Oleksij
Rempel.
21) Add BPF iterators, from Yonghang Song.
22) Add cable test infrastructure, including ethool interfaces, from
Andrew Lunn. Marvell PHY driver is the first to support this
facility.
23) Remove zero-length arrays all over, from Gustavo A. R. Silva.
24) Calculate and maintain an explicit frame size in XDP, from Jesper
Dangaard Brouer.
25) Add CAP_BPF, from Alexei Starovoitov.
26) Support terse dumps in the packet scheduler, from Vlad Buslov.
27) Support XDP_TX bulking in dpaa2 driver, from Ioana Ciornei.
28) Add devm_register_netdev(), from Bartosz Golaszewski.
29) Minimize qdisc resets, from Cong Wang.
30) Get rid of kernel_getsockopt and kernel_setsockopt in order to
eliminate set_fs/get_fs calls. From Christoph Hellwig.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2517 commits)
selftests: net: ip_defrag: ignore EPERM
net_failover: fixed rollback in net_failover_open()
Revert "tipc: Fix potential tipc_aead refcnt leak in tipc_crypto_rcv"
Revert "tipc: Fix potential tipc_node refcnt leak in tipc_rcv"
vmxnet3: allow rx flow hash ops only when rss is enabled
hinic: add set_channels ethtool_ops support
selftests/bpf: Add a default $(CXX) value
tools/bpf: Don't use $(COMPILE.c)
bpf, selftests: Use bpf_probe_read_kernel
s390/bpf: Use bcr 0,%0 as tail call nop filler
s390/bpf: Maintain 8-byte stack alignment
selftests/bpf: Fix verifier test
selftests/bpf: Fix sample_cnt shared between two threads
bpf, selftests: Adapt cls_redirect to call csum_level helper
bpf: Add csum_level helper for fixing up csum levels
bpf: Fix up bpf_skb_adjust_room helper's skb csum setting
sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()
crypto/chtls: IPv6 support for inline TLS
Crypto/chcr: Fixes a coccinile check error
Crypto/chcr: Fixes compilations warnings
...
|
|
|
Linus Torvalds
|
039aeb9deb |
ARM:
- Move the arch-specific code into arch/arm64/kvm
- Start the post-32bit cleanup
- Cherry-pick a few non-invasive pre-NV patches
x86:
- Rework of TLB flushing
- Rework of event injection, especially with respect to nested virtualization
- Nested AMD event injection facelift, building on the rework of generic code
and fixing a lot of corner cases
- Nested AMD live migration support
- Optimization for TSC deadline MSR writes and IPIs
- Various cleanups
- Asynchronous page fault cleanups (from tglx, common topic branch with tip tree)
- Interrupt-based delivery of asynchronous "page ready" events (host side)
- Hyper-V MSRs and hypercalls for guest debugging
- VMX preemption timer fixes
s390:
- Cleanups
Generic:
- switch vCPU thread wakeup from swait to rcuwait
The other architectures, and the guest side of the asynchronous page fault
work, will come next week.
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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:
- Move the arch-specific code into arch/arm64/kvm
- Start the post-32bit cleanup
- Cherry-pick a few non-invasive pre-NV patches
x86:
- Rework of TLB flushing
- Rework of event injection, especially with respect to nested
virtualization
- Nested AMD event injection facelift, building on the rework of
generic code and fixing a lot of corner cases
- Nested AMD live migration support
- Optimization for TSC deadline MSR writes and IPIs
- Various cleanups
- Asynchronous page fault cleanups (from tglx, common topic branch
with tip tree)
- Interrupt-based delivery of asynchronous "page ready" events (host
side)
- Hyper-V MSRs and hypercalls for guest debugging
- VMX preemption timer fixes
s390:
- Cleanups
Generic:
- switch vCPU thread wakeup from swait to rcuwait
The other architectures, and the guest side of the asynchronous page
fault work, will come next week"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (256 commits)
KVM: selftests: fix rdtsc() for vmx_tsc_adjust_test
KVM: check userspace_addr for all memslots
KVM: selftests: update hyperv_cpuid with SynDBG tests
x86/kvm/hyper-v: Add support for synthetic debugger via hypercalls
x86/kvm/hyper-v: enable hypercalls regardless of hypercall page
x86/kvm/hyper-v: Add support for synthetic debugger interface
x86/hyper-v: Add synthetic debugger definitions
KVM: selftests: VMX preemption timer migration test
KVM: nVMX: Fix VMX preemption timer migration
x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit
KVM: x86/pmu: Support full width counting
KVM: x86/pmu: Tweak kvm_pmu_get_msr to pass 'struct msr_data' in
KVM: x86: announce KVM_FEATURE_ASYNC_PF_INT
KVM: x86: acknowledgment mechanism for async pf page ready notifications
KVM: x86: interrupt based APF 'page ready' event delivery
KVM: introduce kvm_read_guest_offset_cached()
KVM: rename kvm_arch_can_inject_async_page_present() to kvm_arch_can_dequeue_async_page_present()
KVM: x86: extend struct kvm_vcpu_pv_apf_data with token info
Revert "KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously"
KVM: VMX: Replace zero-length array with flexible-array
...
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Linus Torvalds
|
e7c93cbfe9 |
threads-v5.8
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Merge tag 'threads-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull thread updates from Christian Brauner:
"We have been discussing using pidfds to attach to namespaces for quite
a while and the patches have in one form or another already existed
for about a year. But I wanted to wait to see how the general api
would be received and adopted.
This contains the changes to make it possible to use pidfds to attach
to the namespaces of a process, i.e. they can be passed as the first
argument to the setns() syscall.
When only a single namespace type is specified the semantics are
equivalent to passing an nsfd. That means setns(nsfd, CLONE_NEWNET)
equals setns(pidfd, CLONE_NEWNET).
However, when a pidfd is passed, multiple namespace flags can be
specified in the second setns() argument and setns() will attach the
caller to all the specified namespaces all at once or to none of them.
Specifying 0 is not valid together with a pidfd. Here are just two
obvious examples:
setns(pidfd, CLONE_NEWPID | CLONE_NEWNS | CLONE_NEWNET);
setns(pidfd, CLONE_NEWUSER);
Allowing to also attach subsets of namespaces supports various
use-cases where callers setns to a subset of namespaces to retain
privilege, perform an action and then re-attach another subset of
namespaces.
Apart from significantly reducing the number of syscalls needed to
attach to all currently supported namespaces (eight "open+setns"
sequences vs just a single "setns()"), this also allows atomic setns
to a set of namespaces, i.e. either attaching to all namespaces
succeeds or we fail without having changed anything.
This is centered around a new internal struct nsset which holds all
information necessary for a task to switch to a new set of namespaces
atomically. Fwiw, with this change a pidfd becomes the only token
needed to interact with a container. I'm expecting this to be
picked-up by util-linux for nsenter rather soon.
Associated with this change is a shiny new test-suite dedicated to
setns() (for pidfds and nsfds alike)"
* tag 'threads-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
selftests/pidfd: add pidfd setns tests
nsproxy: attach to namespaces via pidfds
nsproxy: add struct nsset
|
|
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Thadeu Lima de Souza Cascardo
|
065fcfd497 |
selftests: net: ip_defrag: ignore EPERM
When running with conntrack rules, the dropped overlap fragments may cause EPERM to be returned to sendto. Instead of completely failing, just ignore those errors and continue. If this causes packets with overlap fragments to be dropped as expected, that is okay. And if it causes packets that are expected to be received to be dropped, which should not happen, it will be detected as failure. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net> |