mirror of https://gitee.com/openkylin/linux.git
28926 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Randy Dunlap
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f75d651587 |
resource/docs: Fix new kernel-doc warnings
The first group of warnings is caused by a "/**" kernel-doc notation
marker but the function comments are not in kernel-doc format.
Also add another error return value here.
../kernel/resource.c:337: warning: Function parameter or member 'start' not described in 'find_next_iomem_res'
../kernel/resource.c:337: warning: Function parameter or member 'end' not described in 'find_next_iomem_res'
../kernel/resource.c:337: warning: Function parameter or member 'flags' not described in 'find_next_iomem_res'
../kernel/resource.c:337: warning: Function parameter or member 'desc' not described in 'find_next_iomem_res'
../kernel/resource.c:337: warning: Function parameter or member 'first_lvl' not described in 'find_next_iomem_res'
../kernel/resource.c:337: warning: Function parameter or member 'res' not described in 'find_next_iomem_res'
Add the missing function parameter documentation for the other warnings:
../kernel/resource.c:409: warning: Function parameter or member 'arg' not described in 'walk_iomem_res_desc'
../kernel/resource.c:409: warning: Function parameter or member 'func' not described in 'walk_iomem_res_desc'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
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Yi Wang
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e1ff516a56 |
sched/fair: Fix a comment in task_numa_fault()
Duplicated 'case it'. Signed-off-by: Yi Wang <wang.yi59@zte.com.cn> Reviewed-by: Xi Xu <xu.xi8@zte.com.cn> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: zhong.weidong@zte.com.cn Link: http://lkml.kernel.org/r/1541379013-11352-1-git-send-email-wang.yi59@zte.com.cn Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
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71e5602817 |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar: "A memory (under-)allocation fix and a comment fix" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/topology: Fix off by one bug sched/rt: Update comment in pick_next_task_rt() |
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Linus Torvalds
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601a88077c |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"A number of fixes and some late updates:
- make in_compat_syscall() behavior on x86-32 similar to other
platforms, this touches a number of generic files but is not
intended to impact non-x86 platforms.
- objtool fixes
- PAT preemption fix
- paravirt fixes/cleanups
- cpufeatures updates for new instructions
- earlyprintk quirk
- make microcode version in sysfs world-readable (it is already
world-readable in procfs)
- minor cleanups and fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
compat: Cleanup in_compat_syscall() callers
x86/compat: Adjust in_compat_syscall() to generic code under !COMPAT
objtool: Support GCC 9 cold subfunction naming scheme
x86/numa_emulation: Fix uniform-split numa emulation
x86/paravirt: Remove unused _paravirt_ident_32
x86/mm/pat: Disable preemption around __flush_tlb_all()
x86/paravirt: Remove GPL from pv_ops export
x86/traps: Use format string with panic() call
x86: Clean up 'sizeof x' => 'sizeof(x)'
x86/cpufeatures: Enumerate MOVDIR64B instruction
x86/cpufeatures: Enumerate MOVDIRI instruction
x86/earlyprintk: Add a force option for pciserial device
objtool: Support per-function rodata sections
x86/microcode: Make revision and processor flags world-readable
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Linus Torvalds
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01897f3e05 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates and fixes from Ingo Molnar:
"These are almost all tooling updates: 'perf top', 'perf trace' and
'perf script' fixes and updates, an UAPI header sync with the merge
window versions, license marker updates, much improved Sparc support
from David Miller, and a number of fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (66 commits)
perf intel-pt/bts: Calculate cpumode for synthesized samples
perf intel-pt: Insert callchain context into synthesized callchains
perf tools: Don't clone maps from parent when synthesizing forks
perf top: Start display thread earlier
tools headers uapi: Update linux/if_link.h header copy
tools headers uapi: Update linux/netlink.h header copy
tools headers: Sync the various kvm.h header copies
tools include uapi: Update linux/mmap.h copy
perf trace beauty: Use the mmap flags table generated from headers
perf beauty: Wire up the mmap flags table generator to the Makefile
perf beauty: Add a generator for MAP_ mmap's flag constants
tools include uapi: Update asound.h copy
tools arch uapi: Update asm-generic/unistd.h and arm64 unistd.h copies
tools include uapi: Update linux/fs.h copy
perf callchain: Honour the ordering of PERF_CONTEXT_{USER,KERNEL,etc}
perf cs-etm: Correct CPU mode for samples
perf unwind: Take pgoff into account when reporting elf to libdwfl
perf top: Do not use overwrite mode by default
perf top: Allow disabling the overwrite mode
perf trace: Beautify mount's first pathname arg
...
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Linus Torvalds
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e9ebc2151f |
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar: "An irqchip driver fix and a memory (over-)allocation fix" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function irq/matrix: Fix memory overallocation |
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Valentin Schneider
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40fa3780ba |
sched/core: Take the hotplug lock in sched_init_smp()
When running on linux-next (8c60c36d0b8c ("Add linux-next specific files
for 20181019")) + CONFIG_PROVE_LOCKING=y on a big.LITTLE system (e.g.
Juno or HiKey960), we get the following report:
[ 0.748225] Call trace:
[ 0.750685] lockdep_assert_cpus_held+0x30/0x40
[ 0.755236] static_key_enable_cpuslocked+0x20/0xc8
[ 0.760137] build_sched_domains+0x1034/0x1108
[ 0.764601] sched_init_domains+0x68/0x90
[ 0.768628] sched_init_smp+0x30/0x80
[ 0.772309] kernel_init_freeable+0x278/0x51c
[ 0.776685] kernel_init+0x10/0x108
[ 0.780190] ret_from_fork+0x10/0x18
The static_key in question is 'sched_asym_cpucapacity' introduced by
commit:
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Peter Zijlstra
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993f0b0510 |
sched/topology: Fix off by one bug
With the addition of the NUMA identity level, we increased @level by
one and will run off the end of the array in the distance sort loop.
Fixed:
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Ingo Molnar
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23a12ddee1 |
Merge branch 'core/urgent' into x86/urgent, to pick up objtool fix
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Michael Schupikov
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6f0483d1f9 |
kernel/sysctl.c: remove duplicated include
Remove one include of <linux/pipe_fs_i.h>. No functional changes. Link: http://lkml.kernel.org/r/20181004134223.17735-1-michael@schupikov.de Signed-off-by: Michael Schupikov <michael@schupikov.de> Reviewed-by: Richard Weinberger <richard@nod.at> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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zhong jiang
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3383b36040 |
kernel/kexec_file.c: remove some duplicated includes
We include kexec.h and slab.h twice in kexec_file.c. It's unnecessary. hence just remove them. Link: http://lkml.kernel.org/r/1537498098-19171-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Reviewed-by: Bhupesh Sharma <bhsharma@redhat.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Baoquan He <bhe@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Borkmann
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28c2fae726 |
bpf: fix bpf_prog_get_info_by_fd to return 0 func_lens for unpriv
While |
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Song Liu
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ff1889fc53 |
bpf: show main program address and length in bpf_prog_info
Currently, when there is no subprog (prog->aux->func_cnt == 0), bpf_prog_info does not return any jited_ksyms or jited_func_lens. This patch adds main program address (prog->bpf_func) and main program length (prog->jited_len) to bpf_prog_info. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Song Liu
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de57e99ceb |
bpf: show real jited address in bpf_prog_info->jited_ksyms
Currently, jited_ksyms in bpf_prog_info shows page addresses of jited bpf program. The main reason here is to not expose randomized start address. However, this is not ideal for detailed profiling (find hot instructions from stack traces). This patch replaces the page address with real prog start address. This change is OK because bpf_prog_get_info_by_fd() is only available to root. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Song Liu
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df0734702a |
bpf: show real jited prog address in /proc/kallsyms
Currently, /proc/kallsyms shows page address of jited bpf program. The main reason here is to not expose randomized start address. However, This is not ideal for detailed profiling (find hot instructions from stack traces). This patch replaces the page address with real prog start address. This change is OK because these addresses are still protected by sysctl kptr_restrict (see kallsyms_show_value()), and only programs loaded by root are added to kallsyms (see bpf_prog_kallsyms_add()). Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Linus Torvalds
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5f21585384 |
for-linus-20181102
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Merge tag 'for-linus-20181102' of git://git.kernel.dk/linux-block
Pull block layer fixes from Jens Axboe:
"The biggest part of this pull request is the revert of the blkcg
cleanup series. It had one fix earlier for a stacked device issue, but
another one was reported. Rather than play whack-a-mole with this,
revert the entire series and try again for the next kernel release.
Apart from that, only small fixes/changes.
Summary:
- Indentation fixup for mtip32xx (Colin Ian King)
- The blkcg cleanup series revert (Dennis Zhou)
- Two NVMe fixes. One fixing a regression in the nvme request
initialization in this merge window, causing nvme-fc to not work.
The other is a suspend/resume p2p resource issue (James, Keith)
- Fix sg discard merge, allowing us to merge in cases where we didn't
before (Jianchao Wang)
- Call rq_qos_exit() after the queue is frozen, preventing a hang
(Ming)
- Fix brd queue setup, fixing an oops if we fail setting up all
devices (Ming)"
* tag 'for-linus-20181102' of git://git.kernel.dk/linux-block:
nvme-pci: fix conflicting p2p resource adds
nvme-fc: fix request private initialization
blkcg: revert blkcg cleanups series
block: brd: associate with queue until adding disk
block: call rq_qos_exit() after queue is frozen
mtip32xx: clean an indentation issue, remove extraneous tabs
block: fix the DISCARD request merge
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Dennis Zhou
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b5f2954d30 |
blkcg: revert blkcg cleanups series
This reverts a series committed earlier due to null pointer exception bug report in [1]. It seems there are edge case interactions that I did not consider and will need some time to understand what causes the adverse interactions. The original series can be found in [2] with a follow up series in [3]. [1] https://www.spinics.net/lists/cgroups/msg20719.html [2] https://lore.kernel.org/lkml/20180911184137.35897-1-dennisszhou@gmail.com/ [3] https://lore.kernel.org/lkml/20181020185612.51587-1-dennis@kernel.org/ This reverts the following commits: |
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Linus Torvalds
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b5b1de3537 |
virtio, vhost: fixes, tweaks
virtio balloon page hinting support vhost scsi control queue misc fixes. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- iQEcBAABAgAGBQJb222AAAoJECgfDbjSjVRpfHMH/1uh87pIj6Qbh9LRZm0dRVHs iEuIa0TECb+9AmqHRBliEcqWjihWnlQnSwE6d/ZTk9cH9zEEXsIu0B7nDzjGwJ5b m7wq679JqrtGpCdQhRH85sk8P3fs5ldatdbc4/0fsPwwkoXHcqTOpSZWyhtQHGc4 EkzzxHXVhVXgRBjzLXVCMoOAQ+8QfMZFrKIgKuOB0I4OVughFrAGf0Hemm18f4CL 5+YwsJQjleDkm+Udf+FTQS2oZ57DJsOLm2bwoKgqCkBaDfPlR92uWjgTa50WXggo RaokpFQkJKpz11yenezslzrVWUJApnWnUhfRd71t1ttvujrrcD9zUvWEVMURbuU= =2i/5 -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull virtio/vhost updates from Michael Tsirkin: "Fixes and tweaks: - virtio balloon page hinting support - vhost scsi control queue - misc fixes" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: MAINTAINERS: remove reference to bogus vsock file vhost/scsi: Use common handling code in request queue handler vhost/scsi: Extract common handling code from control queue handler vhost/scsi: Respond to control queue operations vhost/scsi: truncate T10 PI iov_iter to prot_bytes virtio-balloon: VIRTIO_BALLOON_F_PAGE_POISON mm/page_poison: expose page_poisoning_enabled to kernel modules virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT kvm_config: add CONFIG_VIRTIO_MENU |
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Linus Torvalds
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2d6bb6adb7 |
New gcc plugin: stackleak
- Introduces the stackleak gcc plugin ported from grsecurity by Alexander
Popov, with x86 and arm64 support.
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Merge tag 'stackleak-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull stackleak gcc plugin from Kees Cook:
"Please pull this new GCC plugin, stackleak, for v4.20-rc1. This plugin
was ported from grsecurity by Alexander Popov. It provides efficient
stack content poisoning at syscall exit. This creates a defense
against at least two classes of flaws:
- Uninitialized stack usage. (We continue to work on improving the
compiler to do this in other ways: e.g. unconditional zero init was
proposed to GCC and Clang, and more plugin work has started too).
- Stack content exposure. By greatly reducing the lifetime of valid
stack contents, exposures via either direct read bugs or unknown
cache side-channels become much more difficult to exploit. This
complements the existing buddy and heap poisoning options, but
provides the coverage for stacks.
The x86 hooks are included in this series (which have been reviewed by
Ingo, Dave Hansen, and Thomas Gleixner). The arm64 hooks have already
been merged through the arm64 tree (written by Laura Abbott and
reviewed by Mark Rutland and Will Deacon).
With VLAs having been removed this release, there is no need for
alloca() protection, so it has been removed from the plugin"
* tag 'stackleak-v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
arm64: Drop unneeded stackleak_check_alloca()
stackleak: Allow runtime disabling of kernel stack erasing
doc: self-protection: Add information about STACKLEAK feature
fs/proc: Show STACKLEAK metrics in the /proc file system
lkdtm: Add a test for STACKLEAK
gcc-plugins: Add STACKLEAK plugin for tracking the kernel stack
x86/entry: Add STACKLEAK erasing the kernel stack at the end of syscalls
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Linus Torvalds
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82aa467151 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) BPF verifier fixes from Daniel Borkmann.
2) HNS driver fixes from Huazhong Tan.
3) FDB only works for ethernet devices, reject attempts to install FDB
rules for others. From Ido Schimmel.
4) Fix spectre V1 in vhost, from Jason Wang.
5) Don't pass on-stack object to irq_set_affinity_hint() in mvpp2
driver, from Marc Zyngier.
6) Fix mlx5e checksum handling when RXFCS is enabled, from Eric
Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (49 commits)
openvswitch: Fix push/pop ethernet validation
net: stmmac: Fix stmmac_mdio_reset() when building stmmac as modules
bpf: test make sure to run unpriv test cases in test_verifier
bpf: add various test cases to test_verifier
bpf: don't set id on after map lookup with ptr_to_map_val return
bpf: fix partial copy of map_ptr when dst is scalar
libbpf: Fix compile error in libbpf_attach_type_by_name
kselftests/bpf: use ping6 as the default ipv6 ping binary if it exists
selftests: mlxsw: qos_mc_aware: Add a test for UC awareness
selftests: mlxsw: qos_mc_aware: Tweak for min shaper
mlxsw: spectrum: Set minimum shaper on MC TCs
mlxsw: reg: QEEC: Add minimum shaper fields
net: hns3: bugfix for rtnl_lock's range in the hclgevf_reset()
net: hns3: bugfix for rtnl_lock's range in the hclge_reset()
net: hns3: bugfix for handling mailbox while the command queue reinitialized
net: hns3: fix incorrect return value/type of some functions
net: hns3: bugfix for hclge_mdio_write and hclge_mdio_read
net: hns3: bugfix for is_valid_csq_clean_head()
net: hns3: remove unnecessary queue reset in the hns3_uninit_all_ring()
net: hns3: bugfix for the initialization of command queue's spin lock
...
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Linus Torvalds
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eb7046e9bf |
platform-drivers-x86 for v4.20-1
Move the Dell dcdbas and dell_rbu drivers into platform/drivers/x86 as they are closely coupled with other drivers in this location. Improve _init* usage for acerhdf and fix some usage issues with messages and module parameters. Simplify asus-wmi by calling ACPI/WMI methods directly, eliminating workqueue overhead, eliminate double reporting of keyboard backlight. Fix wake from USB failure on Bay Trail devices (intel_int0002_vgpio). Notify intel_telemetry users when IPC1 device is not enabled. Update various drivers with new laptop model IDs. Update several intel drivers to use SPDX identifers and order headers alphabetically. The following is an automated git shortlog grouped by driver: Add Intel AtomISP2 dummy / power-management driver: - Add Intel AtomISP2 dummy / power-management driver lg-laptop: - Add LG Gram laptop special features driver HID: - asus: only support backlight when it's not driven by WMI MAINTAINERS: - intel_telemetry: Update maintainers info - intel_pmc_core: Update MAINTAINERS - Update maintainer for dcdbas and dell_rbu - Use my infradead account exclusively for PDx86 work acerhdf: - restructure to allow large BIOS table be __initconst - mark appropriate content with __init prefix - Add BIOS entry for Gateway LT31 v1.3307 - Remove cut-and-paste trap from instructions - Enable ability to list supported systems - clarify modinfo messages for BIOS override asus-wmi: - export function for evaluating WMI methods - Only notify kbd LED hw_change by fn-key pressed - Simplify the keyboard brightness updating process firmware: - dcdbas: include linux/io.h - dcdbas: Move dcdbas to drivers/platform/x86 - dell_rbu: Move dell_rbu to drivers/platform/x86 - dcdbas: Add support for WSMT ACPI table - dell_rbu: Make payload memory uncachable ideapad-laptop: - Add Y530-15ICH to no_hw_rfkill - Use __func__ instead of read_ec_cmd in pr_err intel-hid: - Convert to use SPDX identifier intel-ips: - Convert to use SPDX identifier intel-rst: - Convert to use SPDX identifier - Sort headers alphabetically intel-smartconnect: - Convert to use SPDX identifier - Sort headers alphabetically intel-wmi-thunderbolt: - Add dynamic debugging - Convert to use SPDX identifier intel_bxtwc_tmu: - Convert to use SPDX identifier intel_cht_int33fe: - Convert to use SPDX identifier intel_chtdc_ti_pwrbtn: - Add SPDX identifier intel_int0002_vgpio: - Convert to use SPDX identifier - Implement irq_set_wake - Enable the driver on Bay Trail platforms intel_menlow: - Convert to use SPDX identifier - Sort headers alphabetically intel_mid_powerbtn: - Convert to use SPDX identifier - Remove unnecessary init.h inclusion - Get rid of custom ICPU() macro intel_mid_thermal: - Convert to use SPDX identifier - Sort headers alphabetically intel_oaktrail: - Convert to use SPDX identifier - Sort headers alphabetically intel_pmc: - Convert to use SPDX identifier - Sort headers alphabetically intel_punit_ipc: - Convert to use SPDX identifier - Sort headers alphabetically intel_scu_ipc: - Convert to use SPDX identifier - Sort headers alphabetically intel_telemetry: - Get rid of custom macro - report debugfs failure - Convert to use SPDX identifier intel_turbo_max_3: - Convert to use SPDX identifier - Sort headers alphabetically mlx-platform: - Properly use mlxplat_mlxcpld_msn201x_items touchscreen_dmi: - Add min-x and min-y settings for various models - Add info for the Onda V80 Plus v3 tablet - Add info for the Trekstor Primetab T13B tablet - Add info for the Trekstor Primebook C11 convertible tracing: - Trivia spelling fix containerof() -> container_of() wmi: - declare device_type structure as constant -----BEGIN PGP SIGNATURE----- iQEcBAABAgAGBQJb2mDCAAoJEKbMaAwKp364KdkH/Rar8cenw7uFeVzT5o4fGzTn 0Oo1Pnwh+hPgmQwmf8O/mHsa/1Zb9nX4nNLU/ysDUjAAZ9wZLoB57HlImQquPA74 c8lXTz5MVF140WB1f1Ck5PmeonJR2Xve7HTYCoBmGo71jOxHxCgJbp1Giiho0Imd 3NXzzahEnAiy/L5PhqqYTmIfTeAHQ2Fo7GkHCjMnS20FP2fBtvPrc7db03F+FZ4y QTfbT0oR42NdeW21AbCRGY3P47axB3xDJX4LOYrb4uo4CIzd1yatlHk407NRRyv8 pab6aeJR23FouA/tcvv+T36D3vqRw78e6BWdoyowWOd7CUOgjtSC3lKGzfT6hSY= =0BDZ -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v4.20-1' of git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver updates from Darren Hart: - Move the Dell dcdbas and dell_rbu drivers into platform/drivers/x86 as they are closely coupled with other drivers in this location. - Improve _init* usage for acerhdf and fix some usage issues with messages and module parameters. - Simplify asus-wmi by calling ACPI/WMI methods directly, eliminating workqueue overhead, eliminate double reporting of keyboard backlight. - Fix wake from USB failure on Bay Trail devices (intel_int0002_vgpio). - Notify intel_telemetry users when IPC1 device is not enabled. - Update various drivers with new laptop model IDs. - Update several intel drivers to use SPDX identifers and order headers alphabetically. * tag 'platform-drivers-x86-v4.20-1' of git://git.infradead.org/linux-platform-drivers-x86: (64 commits) HID: asus: only support backlight when it's not driven by WMI platform/x86: asus-wmi: export function for evaluating WMI methods platform/x86: asus-wmi: Only notify kbd LED hw_change by fn-key pressed platform/x86: wmi: declare device_type structure as constant platform/x86: ideapad: Add Y530-15ICH to no_hw_rfkill platform/x86: Add Intel AtomISP2 dummy / power-management driver platform/x86: touchscreen_dmi: Add min-x and min-y settings for various models platform/x86: touchscreen_dmi: Add info for the Onda V80 Plus v3 tablet platform/x86: touchscreen_dmi: Add info for the Trekstor Primetab T13B tablet platform/x86: intel_telemetry: Get rid of custom macro platform/x86: intel_telemetry: report debugfs failure MAINTAINERS: intel_telemetry: Update maintainers info platform/x86: Add LG Gram laptop special features driver platform/x86: asus-wmi: Simplify the keyboard brightness updating process platform/x86: touchscreen_dmi: Add info for the Trekstor Primebook C11 convertible platform/x86: mlx-platform: Properly use mlxplat_mlxcpld_msn201x_items MAINTAINERS: intel_pmc_core: Update MAINTAINERS firmware: dcdbas: include linux/io.h platform/x86: intel-wmi-thunderbolt: Add dynamic debugging platform/x86: intel-wmi-thunderbolt: Convert to use SPDX identifier ... |
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Dmitry Safonov
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98f76206b3 |
compat: Cleanup in_compat_syscall() callers
Now that in_compat_syscall() is consistent on all architectures and does not longer report true on native i686, the workarounds (ifdeffery and helpers) can be removed. Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Andy Lutomirsky <luto@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: John Stultz <john.stultz@linaro.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-efi@vger.kernel.org Cc: netdev@vger.kernel.org Link: https://lkml.kernel.org/r/20181012134253.23266-3-dima@arista.com |
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Michael Kelley
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57f01796f1 |
irq/matrix: Fix memory overallocation
IRQ_MATRIX_SIZE is the number of longs needed for a bitmap, multiplied by
the size of a long, yielding a byte count. But it is used to size an array
of longs, which is way more memory than is needed.
Change IRQ_MATRIX_SIZE so it is just the number of longs needed and the
arrays come out the correct size.
Fixes:
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Daniel Borkmann
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4d31f30148 |
bpf: don't set id on after map lookup with ptr_to_map_val return
In the verifier there is no such semantics where registers with
PTR_TO_MAP_VALUE type have an id assigned to them. This is only
used in PTR_TO_MAP_VALUE_OR_NULL and later on nullified once the
test against NULL has been pattern matched and type transformed
into PTR_TO_MAP_VALUE.
Fixes:
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Daniel Borkmann
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0962590e55 |
bpf: fix partial copy of map_ptr when dst is scalar
ALU operations on pointers such as scalar_reg += map_value_ptr are
handled in adjust_ptr_min_max_vals(). Problem is however that map_ptr
and range in the register state share a union, so transferring state
through dst_reg->range = ptr_reg->range is just buggy as any new
map_ptr in the dst_reg is then truncated (or null) for subsequent
checks. Fix this by adding a raw member and use it for copying state
over to dst_reg.
Fixes:
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Mike Rapoport
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7e1c4e2792 |
memblock: stop using implicit alignment to SMP_CACHE_BYTES
When a memblock allocation APIs are called with align = 0, the alignment is implicitly set to SMP_CACHE_BYTES. Implicit alignment is done deep in the memblock allocator and it can come as a surprise. Not that such an alignment would be wrong even when used incorrectly but it is better to be explicit for the sake of clarity and the prinicple of the least surprise. Replace all such uses of memblock APIs with the 'align' parameter explicitly set to SMP_CACHE_BYTES and stop implicit alignment assignment in the memblock internal allocation functions. For the case when memblock APIs are used via helper functions, e.g. like iommu_arena_new_node() in Alpha, the helper functions were detected with Coccinelle's help and then manually examined and updated where appropriate. The direct memblock APIs users were updated using the semantic patch below: @@ expression size, min_addr, max_addr, nid; @@ ( | - memblock_alloc_try_nid_raw(size, 0, min_addr, max_addr, nid) + memblock_alloc_try_nid_raw(size, SMP_CACHE_BYTES, min_addr, max_addr, nid) | - memblock_alloc_try_nid_nopanic(size, 0, min_addr, max_addr, nid) + memblock_alloc_try_nid_nopanic(size, SMP_CACHE_BYTES, min_addr, max_addr, nid) | - memblock_alloc_try_nid(size, 0, min_addr, max_addr, nid) + memblock_alloc_try_nid(size, SMP_CACHE_BYTES, min_addr, max_addr, nid) | - memblock_alloc(size, 0) + memblock_alloc(size, SMP_CACHE_BYTES) | - memblock_alloc_raw(size, 0) + memblock_alloc_raw(size, SMP_CACHE_BYTES) | - memblock_alloc_from(size, 0, min_addr) + memblock_alloc_from(size, SMP_CACHE_BYTES, min_addr) | - memblock_alloc_nopanic(size, 0) + memblock_alloc_nopanic(size, SMP_CACHE_BYTES) | - memblock_alloc_low(size, 0) + memblock_alloc_low(size, SMP_CACHE_BYTES) | - memblock_alloc_low_nopanic(size, 0) + memblock_alloc_low_nopanic(size, SMP_CACHE_BYTES) | - memblock_alloc_from_nopanic(size, 0, min_addr) + memblock_alloc_from_nopanic(size, SMP_CACHE_BYTES, min_addr) | - memblock_alloc_node(size, 0, nid) + memblock_alloc_node(size, SMP_CACHE_BYTES, nid) ) [mhocko@suse.com: changelog update] [akpm@linux-foundation.org: coding-style fixes] [rppt@linux.ibm.com: fix missed uses of implicit alignment] Link: http://lkml.kernel.org/r/20181016133656.GA10925@rapoport-lnx Link: http://lkml.kernel.org/r/1538687224-17535-1-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Suggested-by: Michal Hocko <mhocko@suse.com> Acked-by: Paul Burton <paul.burton@mips.com> [MIPS] Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Acked-by: Michal Hocko <mhocko@suse.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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57c8a661d9 |
mm: remove include/linux/bootmem.h
Move remaining definitions and declarations from include/linux/bootmem.h into include/linux/memblock.h and remove the redundant header. The includes were replaced with the semantic patch below and then semi-automated removal of duplicated '#include <linux/memblock.h> @@ @@ - #include <linux/bootmem.h> + #include <linux/memblock.h> [sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au [sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au [sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal] Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Serge Semin <fancer.lancer@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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eb31d559f1 |
memblock: remove _virt from APIs returning virtual address
The conversion is done using sed -i 's@memblock_virt_alloc@memblock_alloc@g' \ $(git grep -l memblock_virt_alloc) Link: http://lkml.kernel.org/r/1536927045-23536-8-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Serge Semin <fancer.lancer@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Arnd Bergmann
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6a32c2469c |
kbuild: fix kernel/bounds.c 'W=1' warning
Building any configuration with 'make W=1' produces a warning: kernel/bounds.c:16:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] When also passing -Werror, this prevents us from building any other files. Nobody ever calls the function, but we can't make it 'static' either since we want the compiler output. Calling it 'main' instead however avoids the warning, because gcc does not insist on having a declaration for main. Link: http://lkml.kernel.org/r/20181005083313.2088252-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Borislav Petkov
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b49dec1cf8 |
kernel/panic.c: filter out a potential trailing newline
If a call to panic() terminates the string with a \n , the result puts the closing brace ']---' on a newline because panic() itself adds \n too. Now, if one goes and removes the newline chars from all panic() invocations - and the stats right now look like this: ~300 calls with a \n ~500 calls without a \n one is destined to a neverending game of whack-a-mole because the usual thing to do is add a newline at the end of a string a function is supposed to print. Therefore, simply zap any \n at the end of the panic string to avoid touching so many places in the kernel. Link: http://lkml.kernel.org/r/20181009205019.2786-1-bp@alien8.de Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Kees Cook <keescook@chromium.org> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Borislav Petkov
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95c4fb78fb |
kernel/panic.c: do not append newline to the stack protector panic string
... because panic() itself already does this. Otherwise you have line-broken trailer: [ 1.836965] ---[ end Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: pgd_alloc+0x29e/0x2a0 [ 1.836965] ]--- Link: http://lkml.kernel.org/r/20181008202901.7894-1-bp@alien8.de Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Kees Cook <keescook@chromium.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Weikang Shi
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2e58f57d85 |
kernel/signal.c: fix a comment error
Because get_signal_to_deliver() was renamed to get_signal() the comment should be fixed. Link: http://lkml.kernel.org/r/1539179128-45709-1-git-send-email-swkhack@gmail.com Signed-off-by: Weikang Shi <swkhack@gmail.com> Reported-by: Christian Brauner <christian@brauner.io> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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zhong jiang
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ea6f650465 |
kernel/fail_function.c: remove meaningless null pointer check before debugfs_remove_recursive
debugfs_remove_recursive() has taken the null pointer into account. just remove the null check before debugfs_remove_recursive(). Link: http://lkml.kernel.org/r/1537494404-16473-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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343a9f3540 |
The biggest change here is the updates to kprobes
Back in January I posted patches to create function based events. These were
the events that you suggested I make to allow developers to easily create
events in code where no trace event exists. After posting those changes for
review, it was suggested that we implement this instead with kprobes.
The problem with kprobes is that the interface is too complex and needs to
be simplified. Masami Hiramatsu posted patches in March and I've been
playing with them a bit. There's been a bit of clean up in the kprobe code
that was inspired by the function based event patches, and a couple of
enhancements to the kprobe event interface.
- If the arch supports it (we added support for x86), you can place a
kprobe event at the start of a function and use $arg1, $arg2, etc
to reference the arguments of a function. (Before you needed to know
what register or where on the stack the argument was).
- The second is a way to see array of events. For example, if you reference
a mac address, you can add:
echo 'p:mac ip_rcv perm_addr=+574($arg2):x8[6]' > kprobe_events
And this will produce:
mac: (ip_rcv+0x0/0x140) perm_addr={0x52,0x54,0x0,0xc0,0x76,0xec}
Other changes include
- Exporting trace_dump_stack to modules
- Have the stack tracer trace the entire stack (stop trying to remove
tracing itself, as we keep removing too much).
- Added support for SDT in uprobes
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b29kbWlzLm9yZwAKCRAp5XQQmuv6qmtbAP9GS/o2WSvsYLSIw4+mF94eCL06lUxp
rRrktkEofm/PagEAl2JNmvHrAJN+LIrajqXTbwlZ7Ckk1rZhCW41Am7qnQs=
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Merge tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"The biggest change here is the updates to kprobes
Back in January I posted patches to create function based events.
These were the events that you suggested I make to allow developers to
easily create events in code where no trace event exists. After
posting those changes for review, it was suggested that we implement
this instead with kprobes.
The problem with kprobes is that the interface is too complex and
needs to be simplified. Masami Hiramatsu posted patches in March and
I've been playing with them a bit. There's been a bit of clean up in
the kprobe code that was inspired by the function based event patches,
and a couple of enhancements to the kprobe event interface.
- If the arch supports it (we added support for x86), you can place a
kprobe event at the start of a function and use $arg1, $arg2, etc
to reference the arguments of a function. (Before you needed to
know what register or where on the stack the argument was).
- The second is a way to see array of events. For example, if you
reference a mac address, you can add:
echo 'p:mac ip_rcv perm_addr=+574($arg2):x8[6]' > kprobe_events
And this will produce:
mac: (ip_rcv+0x0/0x140) perm_addr={0x52,0x54,0x0,0xc0,0x76,0xec}
Other changes include
- Exporting trace_dump_stack to modules
- Have the stack tracer trace the entire stack (stop trying to remove
tracing itself, as we keep removing too much).
- Added support for SDT in uprobes"
[ SDT - "Statically Defined Tracing" are userspace markers for tracing.
Let's not use random TLA's in explanations unless they are fairly
well-established as generic (at least for kernel people) - Linus ]
* tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits)
tracing: Have stack tracer trace full stack
tracing: Export trace_dump_stack to modules
tracing: probeevent: Fix uninitialized used of offset in parse args
tracing/kprobes: Allow kprobe-events to record module symbol
tracing/kprobes: Check the probe on unloaded module correctly
tracing/uprobes: Fix to return -EFAULT if copy_from_user failed
tracing: probeevent: Add $argN for accessing function args
x86: ptrace: Add function argument access API
tracing: probeevent: Add array type support
tracing: probeevent: Add symbol type
tracing: probeevent: Unify fetch_insn processing common part
tracing: probeevent: Append traceprobe_ for exported function
tracing: probeevent: Return consumed bytes of dynamic area
tracing: probeevent: Unify fetch type tables
tracing: probeevent: Introduce new argument fetching code
tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions
tracing: probeevent: Cleanup argument field definition
tracing: probeevent: Cleanup print argument functions
trace_uprobe: support reference counter in fd-based uprobe
perf probe: Support SDT markers having reference counter (semaphore)
...
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Linus Torvalds
|
f4267b3604 |
Masami had a couple more fixes to the synthetic events. One was a proper
error return value, and the other is for the self tests. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCW9hYsBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qiWPAQCARhYpeiWNHYGAirpI1vxaNHzutZvP j6eaqRXu0JDfsQD7Bb19KxSHUEaPSpZIo68N5OJkoTv9UxD2KYuRysu4VQ8= =y1Gc -----END PGP SIGNATURE----- Merge tag 'trace-v4.19-rc8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Masami had a couple more fixes to the synthetic events. One was a proper error return value, and the other is for the self tests" * tag 'trace-v4.19-rc8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: selftests/ftrace: Fix synthetic event test to delete event correctly tracing: Return -ENOENT if there is no target synthetic event |
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Linus Torvalds
|
6ef746769e |
More power management updates for 4.20-rc1
- Fix build regression in the intel_pstate driver that doesn't
build without CONFIG_ACPI after recent changes (Dominik Brodowski).
- One of the heuristics in the menu cpuidle governor is based on a
function returning 0 most of the time, so drop it and clean up
the scheduler code related to it (Daniel Lezcano).
- Prevent the arm_big_little cpufreq driver from being used on ARM64
which is not suitable for it and drop the arm_big_little_dt driver
that is not used any more (Sudeep Holla).
- Prevent the hung task watchdog from triggering during resume from
system-wide sleep states by disabling it before freezing tasks and
enabling it again after they have been thawed (Vitaly Kuznetsov).
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Merge tag 'pm-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These remove a questionable heuristic from the menu cpuidle governor,
fix a recent build regression in the intel_pstate driver, clean up ARM
big-Little support in cpufreq and fix up hung task watchdog's
interaction with system-wide power management transitions.
Specifics:
- Fix build regression in the intel_pstate driver that doesn't build
without CONFIG_ACPI after recent changes (Dominik Brodowski).
- One of the heuristics in the menu cpuidle governor is based on a
function returning 0 most of the time, so drop it and clean up the
scheduler code related to it (Daniel Lezcano).
- Prevent the arm_big_little cpufreq driver from being used on ARM64
which is not suitable for it and drop the arm_big_little_dt driver
that is not used any more (Sudeep Holla).
- Prevent the hung task watchdog from triggering during resume from
system-wide sleep states by disabling it before freezing tasks and
enabling it again after they have been thawed (Vitaly Kuznetsov)"
* tag 'pm-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
kernel: hung_task.c: disable on suspend
cpufreq: remove unused arm_big_little_dt driver
cpufreq: drop ARM_BIG_LITTLE_CPUFREQ support for ARM64
cpufreq: intel_pstate: Fix compilation for !CONFIG_ACPI
cpuidle: menu: Remove get_loadavg() from the performance multiplier
sched: Factor out nr_iowait and nr_iowait_cpu
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Colin Ian King
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28fa741c27 |
perf/core: Clean up inconsisent indentation
Replace a bunch of spaces with tab, cleans up indentation Signed-off-by: Colin Ian King <colin.king@canonical.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kernel-janitors@vger.kernel.org Link: http://lkml.kernel.org/r/20181029233211.21475-1-colin.king@canonical.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Rafael J. Wysocki
|
c4ac688993 |
Merge branches 'pm-cpuidle' and 'pm-cpufreq'
* pm-cpuidle: cpuidle: menu: Remove get_loadavg() from the performance multiplier sched: Factor out nr_iowait and nr_iowait_cpu * pm-cpufreq: cpufreq: remove unused arm_big_little_dt driver cpufreq: drop ARM_BIG_LITTLE_CPUFREQ support for ARM64 cpufreq: intel_pstate: Fix compilation for !CONFIG_ACPI |
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Muchun Song
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a68d75081a |
sched/rt: Update comment in pick_next_task_rt()
Commit:
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Linus Torvalds
|
9f51ae62c8 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) GRO overflow entries are not unlinked properly, resulting in list
poison pointers being dereferenced.
2) Fix bridge build with ipv6 disabled, from Nikolay Aleksandrov.
3) Direct packet access and other fixes in BPF from Daniel Borkmann.
4) gred_change_table_def() gets passed the wrong pointer, a pointer to
a set of unparsed attributes instead of the attribute itself. From
Jakub Kicinski.
5) Allow macsec device to be brought up even if it's lowerdev is down,
from Sabrina Dubroca.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: diag: document swapped src/dst in udp_dump_one.
macsec: let the administrator set UP state even if lowerdev is down
macsec: update operstate when lower device changes
net: sched: gred: pass the right attribute to gred_change_table_def()
ptp: drop redundant kasprintf() to create worker name
net: bridge: remove ipv6 zero address check in mcast queries
net: Properly unlink GRO packets on overflow.
bpf: fix wrong helper enablement in cgroup local storage
bpf: add bpf_jit_limit knob to restrict unpriv allocations
bpf: make direct packet write unclone more robust
bpf: fix leaking uninitialized memory on pop/peek helpers
bpf: fix direct packet write into pop/peek helpers
bpf: fix cg_skb types to hint access type in may_access_direct_pkt_data
bpf: fix direct packet access for flow dissector progs
bpf: disallow direct packet access for unpriv in cg_skb
bpf: fix test suite to enable all unpriv program types
bpf, btf: fix a missing check bug in btf_parse
selftests/bpf: add config fragments BPF_STREAM_PARSER and XDP_SOCKETS
bpf: devmap: fix wrong interface selection in notifier_call
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Linus Torvalds
|
ac747c0715 |
Kbuild updates for v4.20
- optimize kallsyms slightly - remove check for old CFLAGS usage - add some compiler flags unconditionally instead of evaluating $(call cc-option,...) - fix variable shadowing in host tools - refactor scripts/mkmakefile - refactor various makefiles -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJb1eyEAAoJED2LAQed4NsGUjwP/0/W0nLP+nKCJ0NpsSD151Ea Vrbm+RMxl8uPuQ0+Bh59rdO2yWR8v7jOX8CPbX1DqW0XwW4vTNRZm9j6A83rJzHv dPpinUObq6vXGJCYvMLoumhOkM1lRZie1AeBeLgKF0G0jprxUspGvakSyM/5SOo6 3gIhpPcczijC980KHIJbmwiGqRFVs3/zwqcKjQaRD3C6f4HdJL3i9Zr7kuZF0g1x dxCdN4Shv5x0igggp58z8646bbKlN7hItYaPq2csDop55/jWKzUkBkFkeaDjiUdB B6ysQfwkuTb6sbKXE6euYLUTyc6epx9v9pey0FpOx5tjXT+QmgK1ddLQEwdFH2+/ Fd5VR70h8uKTNvmqFJ+iebpR/aC71sUqYAzsoiTVZibR/F6+QAuhHJPZJDlSSwLC QH7j0fwJ3X5p9PYe3JBWyWzOd9BDvtV+HGE67Kx17iRNW0FDyKSvn7tezRVtqvHr KENrMT4n+lNQzB+c4lfjOE9ANpOf+PP4+ODhbrtvKItyb5QfF4F+5CDVif3wv3Kt 6dvh13hvR06gQCpbuxcFgD17mT1T/lVieuzOnWjtEh4HiMI1H0abYfkRWbQshrti u7TfYxwAyWKtisiPiT/1THYsW3ux7QmTSIo2iOznQxDlbmzENpQx+f22HsLaC0XU AUgvKGBaN0WOar2f2gyq =jM4E -----END PGP SIGNATURE----- Merge tag 'kbuild-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - optimize kallsyms slightly - remove check for old CFLAGS usage - add some compiler flags unconditionally instead of evaluating $(call cc-option,...) - fix variable shadowing in host tools - refactor scripts/mkmakefile - refactor various makefiles * tag 'kbuild-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: modpost: Create macro to avoid variable shadowing ASN.1: Remove unnecessary shadowed local variable kbuild: use 'else ifeq' for checksrc to improve readability kbuild: remove unneeded link_multi_deps kbuild: add -Wno-unused-but-set-variable flag unconditionally kbuild: add -Wdeclaration-after-statement flag unconditionally kbuild: add -Wno-pointer-sign flag unconditionally modpost: remove leftover symbol prefix handling for module device table kbuild: simplify command line creation in scripts/mkmakefile kbuild: do not pass $(objtree) to scripts/mkmakefile kbuild: remove user ID check in scripts/mkmakefile kbuild: remove VERSION and PATCHLEVEL from $(objtree)/Makefile kbuild: add --include-dir flag only for out-of-tree build kbuild: remove dead code in cmd_files calculation in top Makefile kbuild: hide most of targets when running config or mixed targets kbuild: remove old check for CFLAGS use kbuild: prefix Makefile.dtbinst path with $(srctree) unconditionally kallsyms: remove left-over Blackfin code kallsyms: reduce size a little on 64-bit |
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Linus Torvalds
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dad4f140ed |
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
Pull XArray conversion from Matthew Wilcox: "The XArray provides an improved interface to the radix tree data structure, providing locking as part of the API, specifying GFP flags at allocation time, eliminating preloading, less re-walking the tree, more efficient iterations and not exposing RCU-protected pointers to its users. This patch set 1. Introduces the XArray implementation 2. Converts the pagecache to use it 3. Converts memremap to use it The page cache is the most complex and important user of the radix tree, so converting it was most important. Converting the memremap code removes the only other user of the multiorder code, which allows us to remove the radix tree code that supported it. I have 40+ followup patches to convert many other users of the radix tree over to the XArray, but I'd like to get this part in first. The other conversions haven't been in linux-next and aren't suitable for applying yet, but you can see them in the xarray-conv branch if you're interested" * 'xarray' of git://git.infradead.org/users/willy/linux-dax: (90 commits) radix tree: Remove multiorder support radix tree test: Convert multiorder tests to XArray radix tree tests: Convert item_delete_rcu to XArray radix tree tests: Convert item_kill_tree to XArray radix tree tests: Move item_insert_order radix tree test suite: Remove multiorder benchmarking radix tree test suite: Remove __item_insert memremap: Convert to XArray xarray: Add range store functionality xarray: Move multiorder_check to in-kernel tests xarray: Move multiorder_shrink to kernel tests xarray: Move multiorder account test in-kernel radix tree test suite: Convert iteration test to XArray radix tree test suite: Convert tag_tagged_items to XArray radix tree: Remove radix_tree_clear_tags radix tree: Remove radix_tree_maybe_preload_order radix tree: Remove split/join code radix tree: Remove radix_tree_update_node_t page cache: Finish XArray conversion dax: Convert page fault handlers to XArray ... |
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Masami Hiramatsu
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18858511fd |
tracing: Return -ENOENT if there is no target synthetic event
Return -ENOENT error if there is no target synthetic event.
This notices an operation failure to user as below;
# echo 'wakeup_latency u64 lat; pid_t pid;' > synthetic_events
# echo '!wakeup' >> synthetic_events
sh: write error: No such file or directory
Link: http://lkml.kernel.org/r/154013449986.25576.9487131386597290172.stgit@devbox
Acked-by: Tom Zanussi <zanussi@linux.intel.com>
Tested-by: Tom Zanussi <zanussi@linux.intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Rajvi Jingar <rajvi.jingar@intel.com>
Cc: stable@vger.kernel.org
Fixes:
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Steven Rostedt (VMware)
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a2acce5369 |
tracing: Have stack tracer trace full stack
The stack tracer traces every function call checking the current stack (in non interrupt context), looking for the deepest stack, and saving it when it finds a new max depth. The problem is that it calls save_stack_trace(), and with the new ORC unwinder, it can skip too much. As it looks at the ip of the function call in the backtrace to find where it should start, it doesn't need to skip anything. The stack trace selftest would fail when the kernel was complied with the ORC UNDWINDER enabled. Without skipping functions when doing the stack trace, it now passes again. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Nikolay Borisov
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da387e5c93 |
tracing: Export trace_dump_stack to modules
There is no reason for this function to be unexprted and it's a useful debugging aid. Link: http://lkml.kernel.org/r/1539759103-5923-1-git-send-email-nborisov@suse.com Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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David S. Miller
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6788fac820 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says: ==================== pull-request: bpf 2018-10-27 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Fix toctou race in BTF header validation, from Martin and Wenwen. 2) Fix devmap interface comparison in notifier call which was neglecting netns, from Taehee. 3) Several fixes in various places, for example, correcting direct packet access and helper function availability, from Daniel. 4) Fix BPF kselftest config fragment to include af_xdp and sockmap, from Naresh. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
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345671ea0f |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - a few misc things - ocfs2 updates - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (132 commits) hugetlbfs: dirty pages as they are added to pagecache mm: export add_swap_extent() mm: split SWP_FILE into SWP_ACTIVATED and SWP_FS tools/testing/selftests/vm/map_fixed_noreplace.c: add test for MAP_FIXED_NOREPLACE mm: thp: relocate flush_cache_range() in migrate_misplaced_transhuge_page() mm: thp: fix mmu_notifier in migrate_misplaced_transhuge_page() mm: thp: fix MADV_DONTNEED vs migrate_misplaced_transhuge_page race condition mm/kasan/quarantine.c: make quarantine_lock a raw_spinlock_t mm/gup: cache dev_pagemap while pinning pages Revert "x86/e820: put !E820_TYPE_RAM regions into memblock.reserved" mm: return zero_resv_unavail optimization mm: zero remaining unavailable struct pages tools/testing/selftests/vm/gup_benchmark.c: add MAP_HUGETLB option tools/testing/selftests/vm/gup_benchmark.c: add MAP_SHARED option tools/testing/selftests/vm/gup_benchmark.c: allow user specified file tools/testing/selftests/vm/gup_benchmark.c: fix 'write' flag usage mm/gup_benchmark.c: add additional pinning methods mm/gup_benchmark.c: time put_page() mm: don't raise MEMCG_OOM event due to failed high-order allocation mm/page-writeback.c: fix range_cyclic writeback vs writepages deadlock ... |
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Alexander Duyck
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966cf44f63 |
mm: defer ZONE_DEVICE page initialization to the point where we init pgmap
The ZONE_DEVICE pages were being initialized in two locations. One was with the memory_hotplug lock held and another was outside of that lock. The problem with this is that it was nearly doubling the memory initialization time. Instead of doing this twice, once while holding a global lock and once without, I am opting to defer the initialization to the one outside of the lock. This allows us to avoid serializing the overhead for memory init and we can instead focus on per-node init times. One issue I encountered is that devm_memremap_pages and hmm_devmmem_pages_create were initializing only the pgmap field the same way. One wasn't initializing hmm_data, and the other was initializing it to a poison value. Since this is something that is exposed to the driver in the case of hmm I am opting for a third option and just initializing hmm_data to 0 since this is going to be exposed to unknown third party drivers. [alexander.h.duyck@linux.intel.com: fix reference count for pgmap in devm_memremap_pages] Link: http://lkml.kernel.org/r/20181008233404.1909.37302.stgit@localhost.localdomain Link: http://lkml.kernel.org/r/20180925202053.3576.66039.stgit@localhost.localdomain Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Reviewed-by: Pavel Tatashin <pavel.tatashin@microsoft.com> Tested-by: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Johannes Weiner
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2ce7135adc |
psi: cgroup support
On a system that executes multiple cgrouped jobs and independent workloads, we don't just care about the health of the overall system, but also that of individual jobs, so that we can ensure individual job health, fairness between jobs, or prioritize some jobs over others. This patch implements pressure stall tracking for cgroups. In kernels with CONFIG_PSI=y, cgroup2 groups will have cpu.pressure, memory.pressure, and io.pressure files that track aggregate pressure stall times for only the tasks inside the cgroup. Link: http://lkml.kernel.org/r/20180828172258.3185-10-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Daniel Drake <drake@endlessm.com> Tested-by: Suren Baghdasaryan <surenb@google.com> Cc: Christopher Lameter <cl@linux.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Johannes Weiner <jweiner@fb.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Enderborg <peter.enderborg@sony.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Johannes Weiner
|
eb414681d5 |
psi: pressure stall information for CPU, memory, and IO
When systems are overcommitted and resources become contended, it's hard
to tell exactly the impact this has on workload productivity, or how close
the system is to lockups and OOM kills. In particular, when machines work
multiple jobs concurrently, the impact of overcommit in terms of latency
and throughput on the individual job can be enormous.
In order to maximize hardware utilization without sacrificing individual
job health or risk complete machine lockups, this patch implements a way
to quantify resource pressure in the system.
A kernel built with CONFIG_PSI=y creates files in /proc/pressure/ that
expose the percentage of time the system is stalled on CPU, memory, or IO,
respectively. Stall states are aggregate versions of the per-task delay
accounting delays:
cpu: some tasks are runnable but not executing on a CPU
memory: tasks are reclaiming, or waiting for swapin or thrashing cache
io: tasks are waiting for io completions
These percentages of walltime can be thought of as pressure percentages,
and they give a general sense of system health and productivity loss
incurred by resource overcommit. They can also indicate when the system
is approaching lockup scenarios and OOMs.
To do this, psi keeps track of the task states associated with each CPU
and samples the time they spend in stall states. Every 2 seconds, the
samples are averaged across CPUs - weighted by the CPUs' non-idle time to
eliminate artifacts from unused CPUs - and translated into percentages of
walltime. A running average of those percentages is maintained over 10s,
1m, and 5m periods (similar to the loadaverage).
[hannes@cmpxchg.org: doc fixlet, per Randy]
Link: http://lkml.kernel.org/r/20180828205625.GA14030@cmpxchg.org
[hannes@cmpxchg.org: code optimization]
Link: http://lkml.kernel.org/r/20180907175015.GA8479@cmpxchg.org
[hannes@cmpxchg.org: rename psi_clock() to psi_update_work(), per Peter]
Link: http://lkml.kernel.org/r/20180907145404.GB11088@cmpxchg.org
[hannes@cmpxchg.org: fix build]
Link: http://lkml.kernel.org/r/20180913014222.GA2370@cmpxchg.org
Link: http://lkml.kernel.org/r/20180828172258.3185-9-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Johannes Weiner
|
246b3b3342 |
sched: introduce this_rq_lock_irq()
do_sched_yield() disables IRQs, looks up this_rq() and locks it. The next patch is adding another site with the same pattern, so provide a convenience function for it. Link: http://lkml.kernel.org/r/20180828172258.3185-8-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Suren Baghdasaryan <surenb@google.com> Tested-by: Daniel Drake <drake@endlessm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Johannes Weiner <jweiner@fb.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Enderborg <peter.enderborg@sony.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Johannes Weiner
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1f351d7f75 |
sched: sched.h: make rq locking and clock functions available in stats.h
kernel/sched/sched.h includes "stats.h" half-way through the file. The next patch introduces users of sched.h's rq locking functions and update_rq_clock() in kernel/sched/stats.h. Move those definitions up in the file so they are available in stats.h. Link: http://lkml.kernel.org/r/20180828172258.3185-7-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Suren Baghdasaryan <surenb@google.com> Tested-by: Daniel Drake <drake@endlessm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Johannes Weiner <jweiner@fb.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Enderborg <peter.enderborg@sony.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Johannes Weiner
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5c54f5b9ed |
sched: loadavg: make calc_load_n() public
It's going to be used in a later patch. Keep the churn separate. Link: http://lkml.kernel.org/r/20180828172258.3185-6-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Suren Baghdasaryan <surenb@google.com> Tested-by: Daniel Drake <drake@endlessm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Johannes Weiner <jweiner@fb.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Enderborg <peter.enderborg@sony.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Johannes Weiner
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8508cf3ffa |
sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD
There are several definitions of those functions/macros in places that mess with fixed-point load averages. Provide an official version. [akpm@linux-foundation.org: fix missed conversion in block/blk-iolatency.c] Link: http://lkml.kernel.org/r/20180828172258.3185-5-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Suren Baghdasaryan <surenb@google.com> Tested-by: Daniel Drake <drake@endlessm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Johannes Weiner <jweiner@fb.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Enderborg <peter.enderborg@sony.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Johannes Weiner
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b1d29ba82c |
delayacct: track delays from thrashing cache pages
Delay accounting already measures the time a task spends in direct reclaim
and waiting for swapin, but in low memory situations tasks spend can spend
a significant amount of their time waiting on thrashing page cache. This
isn't tracked right now.
To know the full impact of memory contention on an individual task,
measure the delay when waiting for a recently evicted active cache page to
read back into memory.
Also update tools/accounting/getdelays.c:
[hannes@computer accounting]$ sudo ./getdelays -d -p 1
print delayacct stats ON
PID 1
CPU count real total virtual total delay total delay average
50318 745000000 847346785 400533713 0.008ms
IO count delay total delay average
435 122601218 0ms
SWAP count delay total delay average
0 0 0ms
RECLAIM count delay total delay average
0 0 0ms
THRASHING count delay total delay average
19 12621439 0ms
Link: http://lkml.kernel.org/r/20180828172258.3185-4-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Roman Gushchin
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9b6f7e163c |
mm: rework memcg kernel stack accounting
If CONFIG_VMAP_STACK is set, kernel stacks are allocated using
__vmalloc_node_range() with __GFP_ACCOUNT. So kernel stack pages are
charged against corresponding memory cgroups on allocation and uncharged
on releasing them.
The problem is that we do cache kernel stacks in small per-cpu caches and
do reuse them for new tasks, which can belong to different memory cgroups.
Each stack page still holds a reference to the original cgroup, so the
cgroup can't be released until the vmap area is released.
To make this happen we need more than two subsequent exits without forks
in between on the current cpu, which makes it very unlikely to happen. As
a result, I saw a significant number of dying cgroups (in theory, up to 2
* number_of_cpu + number_of_tasks), which can't be released even by
significant memory pressure.
As a cgroup structure can take a significant amount of memory (first of
all, per-cpu data like memcg statistics), it leads to a noticeable waste
of memory.
Link: http://lkml.kernel.org/r/20180827162621.30187-1-guro@fb.com
Fixes:
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Linus Torvalds
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befa936331 |
Second batch of dma-mapping updates for 4.20:
- various swiotlb cleanups - do not dip into the ѕwiotlb pool for dma coherent allocations - add support for not cache coherent DMA to swiotlb - switch ARM64 to use the generic swiotlb_dma_ops -----BEGIN PGP SIGNATURE----- iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAlvTDNELHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYOfdg//a4nGw5bTwj2uol/oS/vOdpE0otR3XpnNC3oopHd3 3xbb0LUR12A0YJmV5Ao9iIRFc60boLNblZglho8Diqks3P9+nYWCQ2rQ+o7ZsfK9 xGBNP0HrdGKPBzs9JodvhP/WBNWEReNbb6KwMe63LtDqUqNDNFmlYfxUgQ+fbgST ZscR7iHJT1Nl0PoJ0mVziPFDA5DFB6JN7z0nU9uddVXLM7MPOFVX/WsFdLZLg/8W /jgQ1gQ+gRMBSyctR8u+LG5KTxtYofiPo46lbyuSa5sx+cnZmjo7Uk5OZgs3soHn gnobSjxgNbPgt8ttaKoFtOpyuO/3cLQeObS8i2MQuzvYpUD/nBT5q6l8XZBAFQCc BkOe0qaBa2BrSG2O7BRgagHuSUjpgkxR3vyVT5e6eyr7uFk+LWslJKx4Uem3uIRf yfNQzx91Xaw7ypaF7//jVPeWucLFZuwYsy13ZAg5D71vYpZBkfgHoMSCrmZQT9o/ V1ijmJy2ZDlGIKH95A0Utr6QKrci1drigg8Zce5A2E2EPAzTiro90ZeGT2tcJmVs LOrbxEN1Dctkkk5l6PJE3k4zYCP7rW4lbW7wPcLZrJoptsm3sQprE10zaAFGKks6 vPLY615FK/JydJ9AIjx6PhFiY6M6Zb2er6CbRo18BjpqjKHgmK0A/uCbLhN+Qnac IoE= =pI5p -----END PGP SIGNATURE----- Merge tag 'dma-mapping-4.20-1' of git://git.infradead.org/users/hch/dma-mapping Pull more dma-mapping updates from Christoph Hellwig: - various swiotlb cleanups - do not dip into the ѕwiotlb pool for dma coherent allocations - add support for not cache coherent DMA to swiotlb - switch ARM64 to use the generic swiotlb_dma_ops * tag 'dma-mapping-4.20-1' of git://git.infradead.org/users/hch/dma-mapping: arm64: use the generic swiotlb_dma_ops swiotlb: add support for non-coherent DMA swiotlb: don't dip into swiotlb pool for coherent allocations swiotlb: refactor swiotlb_map_page swiotlb: use swiotlb_map_page in swiotlb_map_sg_attrs swiotlb: merge swiotlb_unmap_page and unmap_single swiotlb: remove the overflow buffer swiotlb: do not panic on mapping failures swiotlb: mark is_swiotlb_buffer static swiotlb: remove a pointless comment |
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Linus Torvalds
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a67eefad99 |
Printk changes for 4.20
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABAgAGBQJb0GRmAAoJEFKgDEdIgJTy/IEQAKOC4fHonA5LUa8GEO7s+byX LNQzH/NAR+86CCKdWzaiCpyNEbwzXC/5kFuGB+NIKGrutQ+HO1haKG6URRvZiw0c YgxaRpJ1h5OfZNuCjql5dX/bFAuBPwEPUAPusA4YJYSiXota2O76OW+RwEpr71i5 /Z2ygi3nlPECOhS1jTwY+cxGci67cfBIzKKdTXEft53xO38xAp0+Ea5Ljf2kIbgl rNz6XqJcy7rcAwEvh1kHw0AVEauLWs4NRlLX5eX7FHnqoh4TVFxWhLfNKirRo7gb vHemuucVUdvgG8yoFyg9CkFNLIMV9fWyDXkxab7dvrgD61oceLbNZ7dL86eijz7j qBoQy/igiH1nqIiczhTtp+JltIMzjPmC3unaie7f+oTHnKinzAaaND3wUjqObdZm MZQWsjIpBXC1nIcIs35NZiVMs8xcOG/sekkRcjU6/kbrBkoRqR5xhbm/tIcaCj0Z wKTlgET9b4dnmX8ZiEpvrfeMGxEu4yqfh1O3rvKnk8hKgxTvnzsSriHKh86KSv1L Gby4BA1zYwQxsJJ6LZMJjtHptxKBTcLANx8C/E9wPETP4EM5A1m5egJYRlDW3hb9 MhM4vzUQfq63b9gPduP10jlLrXsWBQRAcAvtvm2lou3TNqipm6ZqVn9vqkv0retR Auk7mO33MVpHbDOQw1GK =N+Ts -----END PGP SIGNATURE----- Merge tag 'printk-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk Pull printk updates from Petr Mladek: - Fix two more locations where printf formatting leaked pointers - Better log_buf_len parameter handling - Add prefix to messages from printk code - Do not miss messages on other consoles when the log is replayed on a new one - Reduce race between console registration and panic() when the log might get replayed on all consoles - Some cont buffer code clean up - Call console only when there is something to do (log vs cont buffer) * tag 'printk-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: lib/vsprintf: Hash printed address for netdev bits fallback lib/vsprintf: Hash legacy clock addresses lib/vsprintf: Prepare for more general use of ptr_to_id() lib/vsprintf: Make ptr argument conts in ptr_to_id() printk: fix integer overflow in setup_log_buf() printk: do not preliminary split up cont buffer printk: lock/unlock console only for new logbuf entries printk: keep kernel cont support always enabled printk: Give error on attempt to set log buffer length to over 2G printk: Add KBUILD_MODNAME and remove a redundant print prefix printk: Correct wrong casting printk: Fix panic caused by passing log_buf_len to command line printk: CON_PRINTBUFFER console registration is a bit racy printk: Do not miss new messages when replaying the log |
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Daniel Borkmann
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ede95a63b5 |
bpf: add bpf_jit_limit knob to restrict unpriv allocations
Rick reported that the BPF JIT could potentially fill the entire module space with BPF programs from unprivileged users which would prevent later attempts to load normal kernel modules or privileged BPF programs, for example. If JIT was enabled but unsuccessful to generate the image, then before commit |
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Daniel Borkmann
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b09928b976 |
bpf: make direct packet write unclone more robust
Given this seems to be quite fragile and can easily slip through the cracks, lets make direct packet write more robust by requiring that future program types which allow for such write must provide a prologue callback. In case of XDP and sk_msg it's noop, thus add a generic noop handler there. The latter starts out with NULL data/data_end unconditionally when sg pages are shared. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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d3f66e4116 |
bpf: fix leaking uninitialized memory on pop/peek helpers
Commit |
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Daniel Borkmann
|
80b0d86a17 |
bpf: fix direct packet write into pop/peek helpers
Commit |
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Daniel Borkmann
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d5563d367c |
bpf: fix cg_skb types to hint access type in may_access_direct_pkt_data
Commit |
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Daniel Borkmann
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5d66fa7d9e |
bpf: fix direct packet access for flow dissector progs
Commit |
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Martin Lau
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4a6998aff8 |
bpf, btf: fix a missing check bug in btf_parse
Wenwen Wang reported: In btf_parse(), the header of the user-space btf data 'btf_data' is firstly parsed and verified through btf_parse_hdr(). In btf_parse_hdr(), the header is copied from user-space 'btf_data' to kernel-space 'btf->hdr' and then verified. If no error happens during the verification process, the whole data of 'btf_data', including the header, is then copied to 'data' in btf_parse(). It is obvious that the header is copied twice here. More importantly, no check is enforced after the second copy to make sure the headers obtained in these two copies are same. Given that 'btf_data' resides in the user space, a malicious user can race to modify the header between these two copies. By doing so, the user can inject inconsistent data, which can cause undefined behavior of the kernel and introduce potential security risk. This issue is similar to the one fixed in commit |
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Taehee Yoo
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f592f80483 |
bpf: devmap: fix wrong interface selection in notifier_call
The dev_map_notification() removes interface in devmap if
unregistering interface's ifindex is same.
But only checking ifindex is not enough because other netns can have
same ifindex. so that wrong interface selection could occurred.
Hence netdev pointer comparison code is added.
v2: compare netdev pointer instead of using net_eq() (Daniel Borkmann)
v1: Initial patch
Fixes:
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Linus Torvalds
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5947a64a7e |
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner: "The interrupt brigade came up with the following updates: - Driver for the Marvell System Error Interrupt machinery - Overhaul of the GIC-V3 ITS driver - Small updates and fixes all over the place" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits) genirq: Fix race on spurious interrupt detection softirq: Fix typo in __do_softirq() comments genirq: Fix grammar s/an /a / irqchip/gic: Unify GIC priority definitions irqchip/gic-v3: Remove acknowledge loop dt-bindings/interrupt-controller: Add documentation for Marvell SEI controller dt-bindings/interrupt-controller: Update Marvell ICU bindings irqchip/irq-mvebu-icu: Add support for System Error Interrupts (SEI) arm64: marvell: Enable SEI driver irqchip/irq-mvebu-sei: Add new driver for Marvell SEI irqchip/irq-mvebu-icu: Support ICU subnodes irqchip/irq-mvebu-icu: Disociate ICU and NSR irqchip/irq-mvebu-icu: Clarify the reset operation of configured interrupts irqchip/irq-mvebu-icu: Fix wrong private data retrieval dt-bindings/interrupt-controller: Fix Marvell ICU length in the example genirq/msi: Allow creation of a tree-based irqdomain for platform-msi dt-bindings: irqchip: renesas-irqc: Document r8a7744 support dt-bindings: irqchip: renesas-irqc: Document R-Car E3 support irqchip/pdc: Setup all edge interrupts as rising edge at GIC irqchip/gic-v3-its: Allow use of LPI tables in reserved memory ... |
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Linus Torvalds
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4dcb9239da |
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timekeeping updates from Thomas Gleixner:
"The timers and timekeeping departement provides:
- Another large y2038 update with further preparations for providing
the y2038 safe timespecs closer to the syscalls.
- An overhaul of the SHCMT clocksource driver
- SPDX license identifier updates
- Small cleanups and fixes all over the place"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
tick/sched : Remove redundant cpu_online() check
clocksource/drivers/dw_apb: Add reset control
clocksource: Remove obsolete CLOCKSOURCE_OF_DECLARE
clocksource/drivers: Unify the names to timer-* format
clocksource/drivers/sh_cmt: Add R-Car gen3 support
dt-bindings: timer: renesas: cmt: document R-Car gen3 support
clocksource/drivers/sh_cmt: Properly line-wrap sh_cmt_of_table[] initializer
clocksource/drivers/sh_cmt: Fix clocksource width for 32-bit machines
clocksource/drivers/sh_cmt: Fixup for 64-bit machines
clocksource/drivers/sh_tmu: Convert to SPDX identifiers
clocksource/drivers/sh_mtu2: Convert to SPDX identifiers
clocksource/drivers/sh_cmt: Convert to SPDX identifiers
clocksource/drivers/renesas-ostm: Convert to SPDX identifiers
clocksource: Convert to using %pOFn instead of device_node.name
tick/broadcast: Remove redundant check
RISC-V: Request newstat syscalls
y2038: signal: Change rt_sigtimedwait to use __kernel_timespec
y2038: socket: Change recvmmsg to use __kernel_timespec
y2038: sched: Change sched_rr_get_interval to use __kernel_timespec
y2038: utimes: Rework #ifdef guards for compat syscalls
...
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Vitaly Kuznetsov
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a1c6ca3c6d |
kernel: hung_task.c: disable on suspend
It is possible to observe hung_task complaints when system goes to
suspend-to-idle state:
# echo freeze > /sys/power/state
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.001 seconds) done.
OOM killer disabled.
Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done.
sd 0:0:0:0: [sda] Synchronizing SCSI cache
INFO: task bash:1569 blocked for more than 120 seconds.
Not tainted 4.19.0-rc3_+ #687
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
bash D 0 1569 604 0x00000000
Call Trace:
? __schedule+0x1fe/0x7e0
schedule+0x28/0x80
suspend_devices_and_enter+0x4ac/0x750
pm_suspend+0x2c0/0x310
Register a PM notifier to disable the detector on suspend and re-enable
back on wakeup.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Daniel Lezcano
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a7fe5190c0 |
cpuidle: menu: Remove get_loadavg() from the performance multiplier
The function get_loadavg() returns almost always zero. To be more
precise, statistically speaking for a total of 1023379 times passing
in the function, the load is equal to zero 1020728 times, greater than
100, 610 times, the remaining is between 0 and 5.
In 2011, the get_loadavg() was removed from the Android tree because
of the above [1]. At this time, the load was:
unsigned long this_cpu_load(void)
{
struct rq *this = this_rq();
return this->cpu_load[0];
}
In 2014, the code was changed by commit
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Daniel Lezcano
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145d952a29 |
sched: Factor out nr_iowait and nr_iowait_cpu
The function nr_iowait_cpu() can be used directly by nr_iowait() instead of duplicating code. Call nr_iowait_cpu() from nr_iowait() Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Lénaïc Huard
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d7b31359ec |
kvm_config: add CONFIG_VIRTIO_MENU
Make sure that make kvmconfig enables all the virtio drivers even if it is preceded by a make allnoconfig. Signed-off-by: Lénaïc Huard <lenaic@lhuard.fr> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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Linus Torvalds
|
638820d8da |
Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris: "In this patchset, there are a couple of minor updates, as well as some reworking of the LSM initialization code from Kees Cook (these prepare the way for ordered stackable LSMs, but are a valuable cleanup on their own)" * 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: LSM: Don't ignore initialization failures LSM: Provide init debugging infrastructure LSM: Record LSM name in struct lsm_info LSM: Convert security_initcall() into DEFINE_LSM() vmlinux.lds.h: Move LSM_TABLE into INIT_DATA LSM: Convert from initcall to struct lsm_info LSM: Remove initcall tracing LSM: Rename .security_initcall section to .lsm_info vmlinux.lds.h: Avoid copy/paste of security_init section LSM: Correctly announce start of LSM initialization security: fix LSM description location keys: Fix the use of the C++ keyword "private" in uapi/linux/keyctl.h seccomp: remove unnecessary unlikely() security: tomoyo: Fix obsolete function security/capabilities: remove check for -EINVAL |
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Linus Torvalds
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ba9f6f8954 |
Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull siginfo updates from Eric Biederman: "I have been slowly sorting out siginfo and this is the culmination of that work. The primary result is in several ways the signal infrastructure has been made less error prone. The code has been updated so that manually specifying SEND_SIG_FORCED is never necessary. The conversion to the new siginfo sending functions is now complete, which makes it difficult to send a signal without filling in the proper siginfo fields. At the tail end of the patchset comes the optimization of decreasing the size of struct siginfo in the kernel from 128 bytes to about 48 bytes on 64bit. The fundamental observation that enables this is by definition none of the known ways to use struct siginfo uses the extra bytes. This comes at the cost of a small user space observable difference. For the rare case of siginfo being injected into the kernel only what can be copied into kernel_siginfo is delivered to the destination, the rest of the bytes are set to 0. For cases where the signal and the si_code are known this is safe, because we know those bytes are not used. For cases where the signal and si_code combination is unknown the bits that won't fit into struct kernel_siginfo are tested to verify they are zero, and the send fails if they are not. I made an extensive search through userspace code and I could not find anything that would break because of the above change. If it turns out I did break something it will take just the revert of a single change to restore kernel_siginfo to the same size as userspace siginfo. Testing did reveal dependencies on preferring the signo passed to sigqueueinfo over si->signo, so bit the bullet and added the complexity necessary to handle that case. Testing also revealed bad things can happen if a negative signal number is passed into the system calls. Something no sane application will do but something a malicious program or a fuzzer might do. So I have fixed the code that performs the bounds checks to ensure negative signal numbers are handled" * 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (80 commits) signal: Guard against negative signal numbers in copy_siginfo_from_user32 signal: Guard against negative signal numbers in copy_siginfo_from_user signal: In sigqueueinfo prefer sig not si_signo signal: Use a smaller struct siginfo in the kernel signal: Distinguish between kernel_siginfo and siginfo signal: Introduce copy_siginfo_from_user and use it's return value signal: Remove the need for __ARCH_SI_PREABLE_SIZE and SI_PAD_SIZE signal: Fail sigqueueinfo if si_signo != sig signal/sparc: Move EMT_TAGOVF into the generic siginfo.h signal/unicore32: Use force_sig_fault where appropriate signal/unicore32: Generate siginfo in ucs32_notify_die signal/unicore32: Use send_sig_fault where appropriate signal/arc: Use force_sig_fault where appropriate signal/arc: Push siginfo generation into unhandled_exception signal/ia64: Use force_sig_fault where appropriate signal/ia64: Use the force_sig(SIGSEGV,...) in ia64_rt_sigreturn signal/ia64: Use the generic force_sigsegv in setup_frame signal/arm/kvm: Use send_sig_mceerr signal/arm: Use send_sig_fault where appropriate signal/arm: Use force_sig_fault where appropriate ... |
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Linus Torvalds
|
50b825d7e8 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Add VF IPSEC offload support in ixgbe, from Shannon Nelson.
2) Add zero-copy AF_XDP support to i40e, from Björn Töpel.
3) All in-tree drivers are converted to {g,s}et_link_ksettings() so we
can get rid of the {g,s}et_settings ethtool callbacks, from Michal
Kubecek.
4) Add software timestamping to veth driver, from Michael Walle.
5) More work to make packet classifiers and actions lockless, from Vlad
Buslov.
6) Support sticky FDB entries in bridge, from Nikolay Aleksandrov.
7) Add ipv6 version of IP_MULTICAST_ALL sockopt, from Andre Naujoks.
8) Support batching of XDP buffers in vhost_net, from Jason Wang.
9) Add flow dissector BPF hook, from Petar Penkov.
10) i40e vf --> generic iavf conversion, from Jesse Brandeburg.
11) Add NLA_REJECT netlink attribute policy type, to signal when users
provide attributes in situations which don't make sense. From
Johannes Berg.
12) Switch TCP and fair-queue scheduler over to earliest departure time
model. From Eric Dumazet.
13) Improve guest receive performance by doing rx busy polling in tx
path of vhost networking driver, from Tonghao Zhang.
14) Add per-cgroup local storage to bpf
15) Add reference tracking to BPF, from Joe Stringer. The verifier can
now make sure that references taken to objects are properly released
by the program.
16) Support in-place encryption in TLS, from Vakul Garg.
17) Add new taprio packet scheduler, from Vinicius Costa Gomes.
18) Lots of selftests additions, too numerous to mention one by one here
but all of which are very much appreciated.
19) Support offloading of eBPF programs containing BPF to BPF calls in
nfp driver, frm Quentin Monnet.
20) Move dpaa2_ptp driver out of staging, from Yangbo Lu.
21) Lots of u32 classifier cleanups and simplifications, from Al Viro.
22) Add new strict versions of netlink message parsers, and enable them
for some situations. From David Ahern.
23) Evict neighbour entries on carrier down, also from David Ahern.
24) Support BPF sk_msg verdict programs with kTLS, from Daniel Borkmann
and John Fastabend.
25) Add support for filtering route dumps, from David Ahern.
26) New igc Intel driver for 2.5G parts, from Sasha Neftin et al.
27) Allow vxlan enslavement to bridges in mlxsw driver, from Ido
Schimmel.
28) Add queue and stack map types to eBPF, from Mauricio Vasquez B.
29) Add back byte-queue-limit support to r8169, with all the bug fixes
in other areas of the driver it works now! From Florian Westphal and
Heiner Kallweit.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2147 commits)
tcp: add tcp_reset_xmit_timer() helper
qed: Fix static checker warning
Revert "be2net: remove desc field from be_eq_obj"
Revert "net: simplify sock_poll_wait"
net: socionext: Reset tx queue in ndo_stop
net: socionext: Add dummy PHY register read in phy_write()
net: socionext: Stop PHY before resetting netsec
net: stmmac: Set OWN bit for jumbo frames
arm64: dts: stratix10: Support Ethernet Jumbo frame
tls: Add maintainers
net: ethernet: ti: cpsw: unsync mcast entries while switch promisc mode
octeontx2-af: Support for NIXLF's UCAST/PROMISC/ALLMULTI modes
octeontx2-af: Support for setting MAC address
octeontx2-af: Support for changing RSS algorithm
octeontx2-af: NIX Rx flowkey configuration for RSS
octeontx2-af: Install ucast and bcast pkt forwarding rules
octeontx2-af: Add LMAC channel info to NIXLF_ALLOC response
octeontx2-af: NPC MCAM and LDATA extract minimal configuration
octeontx2-af: Enable packet length and csum validation
octeontx2-af: Support for VTAG strip and capture
...
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Linus Torvalds
|
034bda1cd5 |
Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 vdso updates from Ingo Molnar: "Two main changes: - Cleanups, simplifications and CLOCK_TAI support (Thomas Gleixner) - Improve code generation (Andy Lutomirski)" * 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/vdso: Rearrange do_hres() to improve code generation x86/vdso: Document vgtod_ts better x86/vdso: Remove "memory" clobbers in the vDSO syscall fallbacks x66/vdso: Add CLOCK_TAI support x86/vdso: Move cycle_last handling into the caller x86/vdso: Simplify the invalid vclock case x86/vdso: Replace the clockid switch case x86/vdso: Collapse coarse functions x86/vdso: Collapse high resolution functions x86/vdso: Introduce and use vgtod_ts x86/vdso: Use unsigned int consistently for vsyscall_gtod_data:: Seq x86/vdso: Enforce 64bit clocksource x86/time: Implement clocksource_arch_init() clocksource: Provide clocksource_arch_init() |
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Linus Torvalds
|
d82924c3b8 |
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 pti updates from Ingo Molnar:
"The main changes:
- Make the IBPB barrier more strict and add STIBP support (Jiri
Kosina)
- Micro-optimize and clean up the entry code (Andy Lutomirski)
- ... plus misc other fixes"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Propagate information about RSB filling mitigation to sysfs
x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
x86/speculation: Apply IBPB more strictly to avoid cross-process data leak
x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC variant
x86/CPU: Fix unused variable warning when !CONFIG_IA32_EMULATION
x86/pti/64: Remove the SYSCALL64 entry trampoline
x86/entry/64: Use the TSS sp2 slot for SYSCALL/SYSRET scratch space
x86/entry/64: Document idtentry
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Linus Torvalds
|
99792e0cea |
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
"Lots of changes in this cycle:
- Lots of CPA (change page attribute) optimizations and related
cleanups (Thomas Gleixner, Peter Zijstra)
- Make lazy TLB mode even lazier (Rik van Riel)
- Fault handler cleanups and improvements (Dave Hansen)
- kdump, vmcore: Enable kdumping encrypted memory with AMD SME
enabled (Lianbo Jiang)
- Clean up VM layout documentation (Baoquan He, Ingo Molnar)
- ... plus misc other fixes and enhancements"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
x86/stackprotector: Remove the call to boot_init_stack_canary() from cpu_startup_entry()
x86/mm: Kill stray kernel fault handling comment
x86/mm: Do not warn about PCI BIOS W+X mappings
resource: Clean it up a bit
resource: Fix find_next_iomem_res() iteration issue
resource: Include resource end in walk_*() interfaces
x86/kexec: Correct KEXEC_BACKUP_SRC_END off-by-one error
x86/mm: Remove spurious fault pkey check
x86/mm/vsyscall: Consider vsyscall page part of user address space
x86/mm: Add vsyscall address helper
x86/mm: Fix exception table comments
x86/mm: Add clarifying comments for user addr space
x86/mm: Break out user address space handling
x86/mm: Break out kernel address space handling
x86/mm: Clarify hardware vs. software "error_code"
x86/mm/tlb: Make lazy TLB mode lazier
x86/mm/tlb: Add freed_tables element to flush_tlb_info
x86/mm/tlb: Add freed_tables argument to flush_tlb_mm_range
smp,cpumask: introduce on_each_cpu_cond_mask
smp: use __cpumask_set_cpu in on_each_cpu_cond
...
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Linus Torvalds
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cbbfb0ae2c |
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Ingo Molnar: "Improve the spreading of managed IRQs at allocation time" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irq/matrix: Spread managed interrupts on allocation irq/matrix: Split out the CPU selection code into a helper |
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Linus Torvalds
|
42f52e1c59 |
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The main changes are:
- Migrate CPU-intense 'misfit' tasks on asymmetric capacity systems,
to better utilize (much) faster 'big core' CPUs. (Morten Rasmussen,
Valentin Schneider)
- Topology handling improvements, in particular when CPU capacity
changes and related load-balancing fixes/improvements (Morten
Rasmussen)
- ... plus misc other improvements, fixes and updates"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
sched/completions/Documentation: Add recommendation for dynamic and ONSTACK completions
sched/completions/Documentation: Clean up the document some more
sched/completions/Documentation: Fix a couple of punctuation nits
cpu/SMT: State SMT is disabled even with nosmt and without "=force"
sched/core: Fix comment regarding nr_iowait_cpu() and get_iowait_load()
sched/fair: Remove setting task's se->runnable_weight during PELT update
sched/fair: Disable LB_BIAS by default
sched/pelt: Fix warning and clean up IRQ PELT config
sched/topology: Make local variables static
sched/debug: Use symbolic names for task state constants
sched/numa: Remove unused numa_stats::nr_running field
sched/numa: Remove unused code from update_numa_stats()
sched/debug: Explicitly cast sched_feat() to bool
sched/core: Disable SD_PREFER_SIBLING on asymmetric CPU capacity domains
sched/fair: Don't move tasks to lower capacity CPUs unless necessary
sched/fair: Set rq->rd->overload when misfit
sched/fair: Wrap rq->rd->overload accesses with READ/WRITE_ONCE()
sched/core: Change root_domain->overload type to int
sched/fair: Change 'prefer_sibling' type to bool
sched/fair: Kick nohz balance if rq->misfit_task_load
...
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Linus Torvalds
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c05f3642f4 |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"The main updates in this cycle were:
- Lots of perf tooling changes too voluminous to list (big perf trace
and perf stat improvements, lots of libtraceevent reorganization,
etc.), so I'll list the authors and refer to the changelog for
details:
Benjamin Peterson, Jérémie Galarneau, Kim Phillips, Peter
Zijlstra, Ravi Bangoria, Sangwon Hong, Sean V Kelley, Steven
Rostedt, Thomas Gleixner, Ding Xiang, Eduardo Habkost, Thomas
Richter, Andi Kleen, Sanskriti Sharma, Adrian Hunter, Tzvetomir
Stoyanov, Arnaldo Carvalho de Melo, Jiri Olsa.
... with the bulk of the changes written by Jiri Olsa, Tzvetomir
Stoyanov and Arnaldo Carvalho de Melo.
- Continued intel_rdt work with a focus on playing well with perf
events. This also imported some non-perf RDT work due to
dependencies. (Reinette Chatre)
- Implement counter freezing for Arch Perfmon v4 (Skylake and newer).
This allows to speed up the PMI handler by avoiding unnecessary MSR
writes and make it more accurate. (Andi Kleen)
- kprobes cleanups and simplification (Masami Hiramatsu)
- Intel Goldmont PMU updates (Kan Liang)
- ... plus misc other fixes and updates"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (155 commits)
kprobes/x86: Use preempt_enable() in optimized_callback()
x86/intel_rdt: Prevent pseudo-locking from using stale pointers
kprobes, x86/ptrace.h: Make regs_get_kernel_stack_nth() not fault on bad stack
perf/x86/intel: Export mem events only if there's PEBS support
x86/cpu: Drop pointless static qualifier in punit_dev_state_show()
x86/intel_rdt: Fix initial allocation to consider CDP
x86/intel_rdt: CBM overlap should also check for overlap with CDP peer
x86/intel_rdt: Introduce utility to obtain CDP peer
tools lib traceevent, perf tools: Move struct tep_handler definition in a local header file
tools lib traceevent: Separate out tep_strerror() for strerror_r() issues
perf python: More portable way to make CFLAGS work with clang
perf python: Make clang_has_option() work on Python 3
perf tools: Free temporary 'sys' string in read_event_files()
perf tools: Avoid double free in read_event_file()
perf tools: Free 'printk' string in parse_ftrace_printk()
perf tools: Cleanup trace-event-info 'tdata' leak
perf strbuf: Match va_{add,copy} with va_end
perf test: S390 does not support watchpoints in test 22
perf auxtrace: Include missing asm/bitsperlong.h to get BITS_PER_LONG
tools include: Adopt linux/bits.h
...
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Linus Torvalds
|
0200fbdd43 |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking and misc x86 updates from Ingo Molnar:
"Lots of changes in this cycle - in part because locking/core attracted
a number of related x86 low level work which was easier to handle in a
single tree:
- Linux Kernel Memory Consistency Model updates (Alan Stern, Paul E.
McKenney, Andrea Parri)
- lockdep scalability improvements and micro-optimizations (Waiman
Long)
- rwsem improvements (Waiman Long)
- spinlock micro-optimization (Matthew Wilcox)
- qspinlocks: Provide a liveness guarantee (more fairness) on x86.
(Peter Zijlstra)
- Add support for relative references in jump tables on arm64, x86
and s390 to optimize jump labels (Ard Biesheuvel, Heiko Carstens)
- Be a lot less permissive on weird (kernel address) uaccess faults
on x86: BUG() when uaccess helpers fault on kernel addresses (Jann
Horn)
- macrofy x86 asm statements to un-confuse the GCC inliner. (Nadav
Amit)
- ... and a handful of other smaller changes as well"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits)
locking/lockdep: Make global debug_locks* variables read-mostly
locking/lockdep: Fix debug_locks off performance problem
locking/pvqspinlock: Extend node size when pvqspinlock is configured
locking/qspinlock_stat: Count instances of nested lock slowpaths
locking/qspinlock, x86: Provide liveness guarantee
x86/asm: 'Simplify' GEN_*_RMWcc() macros
locking/qspinlock: Rework some comments
locking/qspinlock: Re-order code
locking/lockdep: Remove duplicated 'lock_class_ops' percpu array
x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y
futex: Replace spin_is_locked() with lockdep
locking/lockdep: Make class->ops a percpu counter and move it under CONFIG_DEBUG_LOCKDEP=y
x86/jump-labels: Macrofy inline assembly code to work around GCC inlining bugs
x86/cpufeature: Macrofy inline assembly code to work around GCC inlining bugs
x86/extable: Macrofy inline assembly code to work around GCC inlining bugs
x86/paravirt: Work around GCC inlining bugs when compiling paravirt ops
x86/bug: Macrofy the BUG table section handling, to work around GCC inlining bugs
x86/alternatives: Macrofy lock prefixes to work around GCC inlining bugs
x86/refcount: Work around GCC inlining bug
x86/objtool: Use asm macros to work around GCC inlining bugs
...
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Linus Torvalds
|
cee1352f79 |
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The biggest change in this cycle is the conclusion of the big
'simplify RCU to two primary flavors' consolidation work - i.e.
there's a single RCU flavor for any kernel variant (PREEMPT and
!PREEMPT):
- Consolidate the RCU-bh, RCU-preempt, and RCU-sched flavors into a
single flavor similar to RCU-sched in !PREEMPT kernels and into a
single flavor similar to RCU-preempt (but also waiting on
preempt-disabled sequences of code) in PREEMPT kernels.
This branch also includes a refactoring of
rcu_{nmi,irq}_{enter,exit}() from Byungchul Park.
- Now that there is only one RCU flavor in any given running kernel,
the many "rsp" pointers are no longer required, and this cleanup
series removes them.
- This branch carries out additional cleanups made possible by the
RCU flavor consolidation, including inlining now-trivial
functions, updating comments and definitions, and removing
now-unneeded rcutorture scenarios.
- Now that there is only one flavor of RCU in any running kernel,
there is also only on rcu_data structure per CPU. This means that
the rcu_dynticks structure can be merged into the rcu_data
structure, a task taken on by this branch. This branch also
contains a -rt-related fix from Mike Galbraith.
There were also other updates:
- Documentation updates, including some good-eye catches from Joel
Fernandes.
- SRCU updates, most notably changes enabling call_srcu() to be
invoked very early in the boot sequence.
- Torture-test updates, including some preliminary work towards
making rcutorture better able to find problems that result in
insufficient grace-period forward progress.
- Initial changes to RCU to better promote forward progress of grace
periods, including fixing a bug found by Marius Hillenbrand and
David Woodhouse, with the fix suggested by Peter Zijlstra"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (140 commits)
srcu: Make early-boot call_srcu() reuse workqueue lists
rcutorture: Test early boot call_srcu()
srcu: Make call_srcu() available during very early boot
rcu: Convert rcu_state.ofl_lock to raw_spinlock_t
rcu: Remove obsolete ->dynticks_fqs and ->cond_resched_completed
rcu: Switch ->dynticks to rcu_data structure, remove rcu_dynticks
rcu: Switch dyntick nesting counters to rcu_data structure
rcu: Switch urgent quiescent-state requests to rcu_data structure
rcu: Switch lazy counts to rcu_data structure
rcu: Switch last accelerate/advance to rcu_data structure
rcu: Switch ->tick_nohz_enabled_snap to rcu_data structure
rcu: Merge rcu_dynticks structure into rcu_data structure
rcu: Remove unused rcu_dynticks_snap() from Tiny RCU
rcu: Convert "1UL << x" to "BIT(x)"
rcu: Avoid resched_cpu() when rescheduling the current CPU
rcu: More aggressively enlist scheduler aid for nohz_full CPUs
rcu: Compute jiffies_till_sched_qs from other kernel parameters
rcu: Provide functions for determining if call_rcu() has been invoked
rcu: Eliminate ->rcu_qs_ctr from the rcu_dynticks structure
rcu: Motivate Tiny RCU forward progress
...
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Ingo Molnar
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dda93b4538 |
Merge branch 'x86/cache' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
|
12dd08fa95 |
Power management updates for 4.20-rc1
- Backport hibernation bug fixes from x86-64 to x86-32 and
consolidate hibernation handling on x86 to allow 32-bit
systems to work in all of the cases in which 64-bit ones
work (Zhimin Gu, Chen Yu).
- Fix hibernation documentation (Vladimir D. Seleznev).
- Update the menu cpuidle governor to fix a couple of issues
with it, make it more efficient in some cases and clean it
up (Rafael Wysocki).
- Rework the cpuidle polling state implementation to make it
more efficient (Rafael Wysocki).
- Clean up the cpuidle core somewhat (Fieah Lim).
- Fix the cpufreq conservative governor to take policy limits
into account properly in some cases (Rafael Wysocki).
- Add support for retrieving guaranteed performance information
to the ACPI CPPC library and make the intel_pstate driver use
it to expose the CPU base frequency via sysfs on systems with
the hardware-managed P-states (HWP) feature enabled (Srinivas
Pandruvada).
- Fix clang warning in the CPPC cpufreq driver (Nathan Chancellor).
- Get rid of device_node.name printing from cpufreq (Rob Herring).
- Remove unnecessary unlikely() from the cpufreq core (Igor Stoppa).
- Add support for the r8a7744 SoC to the cpufreq-dt driver (Biju Das).
- Update the dt-platdev cpufreq driver to allow RK3399 to have
separate tunables per cluster (Dmitry Torokhov).
- Fix the dma_alloc_coherent() usage in the tegra186 cpufreq driver
(Christoph Hellwig).
- Make the imx6q cpufreq driver read OCOTP through nvmem for
imx6ul/imx6ull (Anson Huang).
- Fix several bugs in the operating performance points (OPP)
framework and make it more stable (Viresh Kumar, Dave Gerlach).
- Update the devfreq subsystem to take changes in the APIs used
by into account, fix some issues with it and make it stop
print device_node.name directly (Bjorn Andersson, Enric Balletbo
i Serra, Matthias Kaehlcke, Rob Herring, Vincent Donnefort, zhong
jiang).
- Prepare the generic power domains (genpd) framework for dealing
with domains containing CPUs (Ulf Hansson).
- Prevent sysfs attributes representing low-power S0 residency
counters from being exposed if low-power S0 support is not
indicated in ACPI FADT (Rajneesh Bhardwaj).
- Get rid of custom CPU features macros for Intel CPUs from the
intel_idle and RAPL drivers (Andy Shevchenko).
- Update the tasks freezer to list tasks that refused to freeze
and caused a system transition to a sleep state to be aborted
(Todd Brandt).
- Update the pm-graph set of tools to v5.2 (Todd Brandt).
- Fix some issues in the cpupower utility (Anders Roxell, Prarit
Bhargava).
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Merge tag 'pm-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These make hibernation on 32-bit x86 systems work in all of the cases
in which it works on 64-bit x86 ones, update the menu cpuidle governor
and the "polling" state to make them more efficient, add more hardware
support to cpufreq drivers and fix issues with some of them, fix a bug
in the conservative cpufreq governor, fix the operating performance
points (OPP) framework and make it more stable, update the devfreq
subsystem to take changes in the APIs used by into account and clean
up some things all over.
Specifics:
- Backport hibernation bug fixes from x86-64 to x86-32 and
consolidate hibernation handling on x86 to allow 32-bit systems to
work in all of the cases in which 64-bit ones work (Zhimin Gu, Chen
Yu).
- Fix hibernation documentation (Vladimir D. Seleznev).
- Update the menu cpuidle governor to fix a couple of issues with it,
make it more efficient in some cases and clean it up (Rafael
Wysocki).
- Rework the cpuidle polling state implementation to make it more
efficient (Rafael Wysocki).
- Clean up the cpuidle core somewhat (Fieah Lim).
- Fix the cpufreq conservative governor to take policy limits into
account properly in some cases (Rafael Wysocki).
- Add support for retrieving guaranteed performance information to
the ACPI CPPC library and make the intel_pstate driver use it to
expose the CPU base frequency via sysfs on systems with the
hardware-managed P-states (HWP) feature enabled (Srinivas
Pandruvada).
- Fix clang warning in the CPPC cpufreq driver (Nathan Chancellor).
- Get rid of device_node.name printing from cpufreq (Rob Herring).
- Remove unnecessary unlikely() from the cpufreq core (Igor Stoppa).
- Add support for the r8a7744 SoC to the cpufreq-dt driver (Biju
Das).
- Update the dt-platdev cpufreq driver to allow RK3399 to have
separate tunables per cluster (Dmitry Torokhov).
- Fix the dma_alloc_coherent() usage in the tegra186 cpufreq driver
(Christoph Hellwig).
- Make the imx6q cpufreq driver read OCOTP through nvmem for
imx6ul/imx6ull (Anson Huang).
- Fix several bugs in the operating performance points (OPP)
framework and make it more stable (Viresh Kumar, Dave Gerlach).
- Update the devfreq subsystem to take changes in the APIs used by
into account, fix some issues with it and make it stop print
device_node.name directly (Bjorn Andersson, Enric Balletbo i Serra,
Matthias Kaehlcke, Rob Herring, Vincent Donnefort, zhong jiang).
- Prepare the generic power domains (genpd) framework for dealing
with domains containing CPUs (Ulf Hansson).
- Prevent sysfs attributes representing low-power S0 residency
counters from being exposed if low-power S0 support is not
indicated in ACPI FADT (Rajneesh Bhardwaj).
- Get rid of custom CPU features macros for Intel CPUs from the
intel_idle and RAPL drivers (Andy Shevchenko).
- Update the tasks freezer to list tasks that refused to freeze and
caused a system transition to a sleep state to be aborted (Todd
Brandt).
- Update the pm-graph set of tools to v5.2 (Todd Brandt).
- Fix some issues in the cpupower utility (Anders Roxell, Prarit
Bhargava)"
* tag 'pm-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (73 commits)
PM / Domains: Document flags for genpd
PM / Domains: Deal with multiple states but no governor in genpd
PM / Domains: Don't treat zero found compatible idle states as an error
cpuidle: menu: Avoid computations when result will be discarded
cpuidle: menu: Drop redundant comparison
cpufreq: tegra186: don't pass GFP_DMA32 to dma_alloc_coherent()
cpufreq: conservative: Take limits changes into account properly
Documentation: intel_pstate: Add base_frequency information
cpufreq: intel_pstate: Add base_frequency attribute
ACPI / CPPC: Add support for guaranteed performance
cpuidle: menu: Simplify checks related to the polling state
PM / tools: sleepgraph and bootgraph: upgrade to v5.2
PM / tools: sleepgraph: first batch of v5.2 changes
cpupower: Fix coredump on VMWare
cpupower: Fix AMD Family 0x17 msr_pstate size
cpufreq: imx6q: read OCOTP through nvmem for imx6ul/imx6ull
cpufreq: dt-platdev: allow RK3399 to have separate tunables per cluster
cpuidle: poll_state: Revise loop termination condition
cpuidle: menu: Move the latency_req == 0 special case check
cpuidle: menu: Avoid computations for very close timers
...
|
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Olivier Brunel
|
876dcf2f3a |
umh: Add command line to user mode helpers
User mode helpers were spawned without a command line, and because
an empty command line is used by many tools to identify processes as
kernel threads, this could cause some issues.
Notably during killing spree on shutdown, since such helper would then
be skipped (i.e. not killed) which would result in the process remaining
alive, and thus preventing unmouting of the rootfs (as experienced with
the bpfilter umh).
Fixes:
|
|
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Linus Torvalds
|
ca9eb48fe0 |
regulator: Regulator updates for next release
The biggest chunk of the regulator changes for this release outside of
the new drivers is the conversion of the fixed regulator to use the GPIO
descriptor API, there's a small addition to the GPIO API plus a bunch of
updates to board files to implement it. This is some really welcome
work from Linus Walleij that's had a bunch of review and has been
sitting in -next for a while so I'm fairly happy there's no major
issues.
- Helpers for overlapping linear ranges.
- Display opmode and consumer requested load in the regualtor_summary
file in debugfs, plus a fix there.
- Support for the fun and entertaining power off mechanism that the
pfuze100 hardware implements.
- Conversion of the fixed regulator API to use GPIO descriptors,
including pulling in a bunch of patches to a bunch of board files.
- New drivers for Cirrus Logic Lochnagar, Qualcomm PMS405, Rohm
BD71847, ST PMIC1, and TI LM363x devices.
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Merge tag 'regulator-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"The biggest chunk of the regulator changes for this release outside of
the new drivers is the conversion of the fixed regulator to use the
GPIO descriptor API, there's a small addition to the GPIO API plus a
bunch of updates to board files to implement it. This is some really
welcome work from Linus Walleij that's had a bunch of review and has
been sitting in -next for a while so I'm fairly happy there's no major
issues.
- Helpers for overlapping linear ranges.
- Display opmode and consumer requested load in the regualtor_summary
file in debugfs, plus a fix there.
- Support for the fun and entertaining power off mechanism that the
pfuze100 hardware implements.
- Conversion of the fixed regulator API to use GPIO descriptors,
including pulling in a bunch of patches to a bunch of board files.
- New drivers for Cirrus Logic Lochnagar, Qualcomm PMS405, Rohm
BD71847, ST PMIC1, and TI LM363x devices"
* tag 'regulator-v5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (36 commits)
regulator: lochnagar: Use a consisent comment style for SPDX header
regulator: bd718x7: Remove struct bd718xx_pmic
regulator: Fetch enable gpiods nonexclusive
regulator/gpio: Allow nonexclusive GPIO access
regulator: lochnagar: Add support for the Cirrus Logic Lochnagar
regulator: stpmic1: Return REGULATOR_MODE_INVALID for invalid mode
regulator: stpmic1: add stpmic1 regulator driver
dt-bindings: regulator: document stpmic1 pmic regulators
regulator: axp20x: Mark expected switch fall-throughs
regulator: bd718xx: fix build warning on x86_64
regulator: fixed: Default enable high on DT regulators
regulator: bd718xx: rename bd71837 to 718xx
regulator: bd718XX use pickable ranges
regulator/mfd: bd718xx: rename bd71837/bd71847 common instances
regulator: Support regulators where voltage ranges are selectable
mfd: dt bindings: add BD71847 device-tree binding documentation
regulator: dt bindings: add BD71847 device-tree binding documentation
regulator/mfd: Support ROHM BD71847 power management IC
regulator: da905{2,5}: Remove unnecessary array check
regulator: qcom: Add PMS405 regulators
...
|
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Linus Torvalds
|
cff229491a |
First batch of dma-mapping changes for 4.20:
- mostly more consolidation of the direct mapping code, including
converting over hexagon, and merging the coherent and non-coherent
code into a single dma_map_ops instance (me)
- cleanups for the dma_configure/dma_unconfigure callchains (me)
- better handling of dma_masks in odd setups (me, Alexander Duyck)
- better debugging of passing vmalloc address to the DMA API
(Stephen Boyd)
- CMA command line parsing fix (He Zhe)
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Merge tag 'dma-mapping-4.20' of git://git.infradead.org/users/hch/dma-mapping
Pull dma mapping updates from Christoph Hellwig:
"First batch of dma-mapping changes for 4.20.
There will be a second PR as some big changes were only applied just
before the end of the merge window, and I want to give them a few more
days in linux-next.
Summary:
- mostly more consolidation of the direct mapping code, including
converting over hexagon, and merging the coherent and non-coherent
code into a single dma_map_ops instance (me)
- cleanups for the dma_configure/dma_unconfigure callchains (me)
- better handling of dma_masks in odd setups (me, Alexander Duyck)
- better debugging of passing vmalloc address to the DMA API (Stephen
Boyd)
- CMA command line parsing fix (He Zhe)"
* tag 'dma-mapping-4.20' of git://git.infradead.org/users/hch/dma-mapping: (27 commits)
dma-direct: respect DMA_ATTR_NO_WARN
dma-mapping: translate __GFP_NOFAIL to DMA_ATTR_NO_WARN
dma-direct: document the zone selection logic
dma-debug: Check for drivers mapping invalid addresses in dma_map_single()
dma-direct: fix return value of dma_direct_supported
dma-mapping: move dma_default_get_required_mask under ifdef
dma-direct: always allow dma mask <= physiscal memory size
dma-direct: implement complete bus_dma_mask handling
dma-direct: refine dma_direct_alloc zone selection
dma-direct: add an explicit dma_direct_get_required_mask
dma-mapping: make the get_required_mask method available unconditionally
unicore32: remove swiotlb support
Revert "dma-mapping: clear dev->dma_ops in arch_teardown_dma_ops"
dma-mapping: support non-coherent devices in dma_common_get_sgtable
dma-mapping: consolidate the dma mmap implementations
dma-mapping: merge direct and noncoherent ops
dma-mapping: move the dma_coherent flag to struct device
MIPS: don't select DMA_MAYBE_COHERENT from DMA_PERDEV_COHERENT
dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration
dma-mapping: fix panic caused by passing empty cma command line argument
...
|
|
|
Linus Torvalds
|
6ab9e09238 |
for-4.20/block-20181021
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Merge tag 'for-4.20/block-20181021' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe:
"This is the main pull request for block changes for 4.20. This
contains:
- Series enabling runtime PM for blk-mq (Bart).
- Two pull requests from Christoph for NVMe, with items such as;
- Better AEN tracking
- Multipath improvements
- RDMA fixes
- Rework of FC for target removal
- Fixes for issues identified by static checkers
- Fabric cleanups, as prep for TCP transport
- Various cleanups and bug fixes
- Block merging cleanups (Christoph)
- Conversion of drivers to generic DMA mapping API (Christoph)
- Series fixing ref count issues with blkcg (Dennis)
- Series improving BFQ heuristics (Paolo, et al)
- Series improving heuristics for the Kyber IO scheduler (Omar)
- Removal of dangerous bio_rewind_iter() API (Ming)
- Apply single queue IPI redirection logic to blk-mq (Ming)
- Set of fixes and improvements for bcache (Coly et al)
- Series closing a hotplug race with sysfs group attributes (Hannes)
- Set of patches for lightnvm:
- pblk trace support (Hans)
- SPDX license header update (Javier)
- Tons of refactoring patches to cleanly abstract the 1.2 and 2.0
specs behind a common core interface. (Javier, Matias)
- Enable pblk to use a common interface to retrieve chunk metadata
(Matias)
- Bug fixes (Various)
- Set of fixes and updates to the blk IO latency target (Josef)
- blk-mq queue number updates fixes (Jianchao)
- Convert a bunch of drivers from the old legacy IO interface to
blk-mq. This will conclude with the removal of the legacy IO
interface itself in 4.21, with the rest of the drivers (me, Omar)
- Removal of the DAC960 driver. The SCSI tree will introduce two
replacement drivers for this (Hannes)"
* tag 'for-4.20/block-20181021' of git://git.kernel.dk/linux-block: (204 commits)
block: setup bounce bio_sets properly
blkcg: reassociate bios when make_request() is called recursively
blkcg: fix edge case for blk_get_rl() under memory pressure
nvme-fabrics: move controller options matching to fabrics
nvme-rdma: always have a valid trsvcid
mtip32xx: fully switch to the generic DMA API
rsxx: switch to the generic DMA API
umem: switch to the generic DMA API
sx8: switch to the generic DMA API
sx8: remove dead IF_64BIT_DMA_IS_POSSIBLE code
skd: switch to the generic DMA API
ubd: remove use of blk_rq_map_sg
nvme-pci: remove duplicate check
drivers/block: Remove DAC960 driver
nvme-pci: fix hot removal during error handling
nvmet-fcloop: suppress a compiler warning
nvme-core: make implicit seed truncation explicit
nvmet-fc: fix kernel-doc headers
nvme-fc: rework the request initialization code
nvme-fc: introduce struct nvme_fcp_op_w_sgl
...
|
|
|
Linus Torvalds
|
5289851171 |
arm64 updates for 4.20:
- Core mmu_gather changes which allow tracking the levels of page-table
being cleared together with the arm64 low-level flushing routines
- Support for the new ARMv8.5 PSTATE.SSBS bit which can be used to
mitigate Spectre-v4 dynamically without trapping to EL3 firmware
- Introduce COMPAT_SIGMINSTKSZ for use in compat_sys_sigaltstack
- Optimise emulation of MRS instructions to ID_* registers on ARMv8.4
- Support for Common Not Private (CnP) translations allowing threads of
the same CPU to share the TLB entries
- Accelerated crc32 routines
- Move swapper_pg_dir to the rodata section
- Trap WFI instruction executed in user space
- ARM erratum 1188874 workaround (arch_timer)
- Miscellaneous fixes and clean-ups
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Apart from some new arm64 features and clean-ups, this also contains
the core mmu_gather changes for tracking the levels of the page table
being cleared and a minor update to the generic
compat_sys_sigaltstack() introducing COMPAT_SIGMINSKSZ.
Summary:
- Core mmu_gather changes which allow tracking the levels of
page-table being cleared together with the arm64 low-level flushing
routines
- Support for the new ARMv8.5 PSTATE.SSBS bit which can be used to
mitigate Spectre-v4 dynamically without trapping to EL3 firmware
- Introduce COMPAT_SIGMINSTKSZ for use in compat_sys_sigaltstack
- Optimise emulation of MRS instructions to ID_* registers on ARMv8.4
- Support for Common Not Private (CnP) translations allowing threads
of the same CPU to share the TLB entries
- Accelerated crc32 routines
- Move swapper_pg_dir to the rodata section
- Trap WFI instruction executed in user space
- ARM erratum 1188874 workaround (arch_timer)
- Miscellaneous fixes and clean-ups"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (78 commits)
arm64: KVM: Guests can skip __install_bp_hardening_cb()s HYP work
arm64: cpufeature: Trap CTR_EL0 access only where it is necessary
arm64: cpufeature: Fix handling of CTR_EL0.IDC field
arm64: cpufeature: ctr: Fix cpu capability check for late CPUs
Documentation/arm64: HugeTLB page implementation
arm64: mm: Use __pa_symbol() for set_swapper_pgd()
arm64: Add silicon-errata.txt entry for ARM erratum 1188873
Revert "arm64: uaccess: implement unsafe accessors"
arm64: mm: Drop the unused cpu parameter
MAINTAINERS: fix bad sdei paths
arm64: mm: Use #ifdef for the __PAGETABLE_P?D_FOLDED defines
arm64: Fix typo in a comment in arch/arm64/mm/kasan_init.c
arm64: xen: Use existing helper to check interrupt status
arm64: Use daifflag_restore after bp_hardening
arm64: daifflags: Use irqflags functions for daifflags
arm64: arch_timer: avoid unused function warning
arm64: Trap WFI executed in userspace
arm64: docs: Document SSBS HWCAP
arm64: docs: Fix typos in ELF hwcaps
arm64/kprobes: remove an extra semicolon in arch_prepare_kprobe
...
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|
David S. Miller
|
a19c59cc10 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2018-10-21
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Implement two new kind of BPF maps, that is, queue and stack
map along with new peek, push and pop operations, from Mauricio.
2) Add support for MSG_PEEK flag when redirecting into an ingress
psock sk_msg queue, and add a new helper bpf_msg_push_data() for
insert data into the message, from John.
3) Allow for BPF programs of type BPF_PROG_TYPE_CGROUP_SKB to use
direct packet access for __skb_buff, from Song.
4) Use more lightweight barriers for walking perf ring buffer for
libbpf and perf tool as well. Also, various fixes and improvements
from verifier side, from Daniel.
5) Add per-symbol visibility for DSO in libbpf and hide by default
global symbols such as netlink related functions, from Andrey.
6) Two improvements to nfp's BPF offload to check vNIC capabilities
in case prog is shared with multiple vNICs and to protect against
mis-initializing atomic counters, from Jakub.
7) Fix for bpftool to use 4 context mode for the nfp disassembler,
also from Jakub.
8) Fix a return value comparison in test_libbpf.sh and add several
bpftool improvements in bash completion, documentation of bpf fs
restrictions and batch mode summary print, from Quentin.
9) Fix a file resource leak in BPF selftest's load_kallsyms()
helper, from Peng.
10) Fix an unused variable warning in map_lookup_and_delete_elem(),
from Alexei.
11) Fix bpf_skb_adjust_room() signature in BPF UAPI helper doc,
from Nicolas.
12) Add missing executables to .gitignore in BPF selftests, from Anders.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Christophe Leroy
|
977e4be5eb |
x86/stackprotector: Remove the call to boot_init_stack_canary() from cpu_startup_entry()
The following commit:
|
|
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David S. Miller
|
21ea1d36f6 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
David Ahern's dump indexing bug fix in 'net' overlapped the change of the function signature of inet6_fill_ifaddr() in 'net-next'. Trivially resolved. Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Mark Brown
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f35b1e53a6
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Merge remote-tracking branches 'regulator/topic/bd718xx' and 'regulator/topic/pfuze100' into regulator-next | |
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Matthew Wilcox
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bcfa4b7211 |
memremap: Convert to XArray
Use the new xa_store_range function instead of the radix tree. Signed-off-by: Matthew Wilcox <willy@infradead.org> |
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Daniel Borkmann
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84430d4232 |
bpf, verifier: avoid retpoline for map push/pop/peek operation
Extend prior work from
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Daniel Borkmann
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ad38911dcd |
bpf, verifier: remove unneeded flow key in check_helper_mem_access
They PTR_TO_FLOW_KEYS is not used today to be passed into a helper as memory, so it can be removed from check_helper_mem_access(). Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Daniel Borkmann
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4b5defdec3 |
bpf, verifier: reject xadd on flow key memory
We should not enable xadd operation for flow key memory if not
needed there anyway. There is no such issue as described in the
commit
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Daniel Borkmann
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2a159c6f82 |
bpf, verifier: fix register type dump in xadd and st
Using reg_type_str[insn->dst_reg] is incorrect since insn->dst_reg
contains the register number but not the actual register type. Add
a small reg_state() helper and use it to get to the type. Also fix
up the test_verifier test cases that have an incorrect errstr.
Fixes:
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Greg Kroah-Hartman
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14dbc56aa2 |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Ingo writes: "scheduler fixes: Two fixes: a CFS-throttling bug fix, and an interactivity fix." * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: Fix the min_vruntime update logic in dequeue_entity() sched/fair: Fix throttle_list starvation with low CFS quota |