xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
aaee8c3c5cce2d9107310dd9f3026b4f901d441c
android_kernel_xiaomi_sm8450/arch/x86/kernel
History
Andy Lutomirski aaee8c3c5c x86/entry/traps: Don't force in_interrupt() to return true in IST handlers 
Forcing in_interrupt() to return true if we're not in a bona fide
interrupt confuses the softirq code.  This fixes warnings like:

  NOHZ: local_softirq_pending 282

... which can happen when running things like selftests/x86.

This will change perf's static percpu buffer usage in IST context.
I think this is okay, and it's changing the behavior to match
historical (pre-4.0) behavior.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 9592747538 ("x86, traps: Track entry into and exit from IST context")
Link: http://lkml.kernel.org/r/cdc215f94d118d691d73df35275022331156fb45.1464130360.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-10 13:54:47 +02:00
..
acpi
Merge tag 'acpi-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2016-05-16 19:41:41 -07:00
apic
printk/nmi: generic solution for safe printk in NMI
2016-05-20 17:58:30 -07:00
cpu
x86/cpu/AMD: Extend X86_FEATURE_TOPOEXT workaround to newer models
2016-06-08 13:51:34 +02:00
fpu
x86/fpu: Get rid of x87 math exception helpers
2016-04-13 11:37:44 +02:00
kprobes
x86/asm: Stop depending on ptrace.h in alternative.h
2016-04-29 11:56:40 +02:00
.gitignore
…
alternative.c
x86/asm: Stop depending on ptrace.h in alternative.h
2016-04-29 11:56:40 +02:00
amd_gart_64.c
…
amd_nb.c
x86/cpu: Get rid of compute_unit_id
2016-03-29 10:45:04 +02:00
apb_timer.c
x86/apb/timer: Use proper mask to modify hotplug action
2016-03-19 13:40:08 +01:00
aperture_64.c
param: convert some "on"/"off" users to strtobool
2016-03-17 15:09:34 -07:00
apm_32.c
x86/apm32: Remove paravirt_enabled() use
2016-04-22 10:29:03 +02:00
asm-offsets_32.c
x86/entry/32: Simplify and fix up the SYSENTER stack #DB/NMI fixup
2016-03-10 09:48:14 +01:00
asm-offsets_64.c
x86/syscalls: Add syscall entry qualifiers
2016-01-29 09:46:38 +01:00
asm-offsets.c
x86/boot: Move compressed kernel to the end of the decompression buffer
2016-04-29 11:03:29 +02:00
audit_64.c
x86: hook up execveat system call
2014-12-13 12:42:51 -08:00
bootflag.c
x86: don't use module_init for non-modular core bootflag code
2015-06-16 14:12:34 -04:00
check.c
Merge tag 'v4.2-rc8' into x86/mm, before applying new changes
2015-08-25 09:59:19 +02:00
cpuid.c
new helpers: no_seek_end_llseek{,_size}()
2015-12-23 10:41:31 -05:00
crash_dump_32.c
…
crash_dump_64.c
…
crash.c
x86/kexec: Remove walk_iomem_res() call with GART type
2016-01-30 09:49:59 +01:00
devicetree.c
x86/cpufeature: Replace cpu_has_apic with boot_cpu_has() usage
2016-04-13 11:37:41 +02:00
doublefault.c
…
dumpstack_32.c
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 13:23:34 -07:00
dumpstack_64.c
x86/kernel: Use kstack_end() in dumpstack_64.c
2015-02-23 18:37:13 +01:00
dumpstack.c
x86/dumpstack: Combine some printk()s
2016-03-31 15:33:03 +02:00
e820.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 09:32:27 -07:00
early_printk.c
x86: Fix misspellings in comments
2016-02-24 08:44:58 +01:00
early-quirks.c
Merge tag 'v4.4-rc2' into drm-intel-next-queued
2015-11-23 09:04:05 +01:00
ebda.c
x86/init: Rename EBDA code file
2016-04-22 10:29:07 +02:00
espfix_64.c
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
ftrace.c
Merge tag 'trace-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2016-03-24 10:52:25 -07:00
head32.c
x86/rtc: Replace paravirt rtc check with platform legacy quirk
2016-04-22 10:29:01 +02:00
head64.c
x86/rtc: Replace paravirt rtc check with platform legacy quirk
2016-04-22 10:29:01 +02:00
head_32.S
Merge branch 'x86/urgent' into x86/asm, to refresh the tree
2016-04-29 11:55:04 +02:00
head_64.S
x86/asm: Make sure verify_cpu() has a good stack
2016-04-13 11:52:19 +02:00
hpet.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-05-16 16:40:14 -07:00
hw_breakpoint.c
x86/cpufeature: Remove unused and seldomly used cpu_has_xx macros
2015-12-19 11:49:55 +01:00
i386_ksyms_32.c
preempt: Use preempt_schedule_context() as the official tracing preemption point
2015-06-07 15:57:42 +02:00
i8237.c
…
i8253.c
clockevents/drivers/i8253: Migrate to new 'set-state' interface
2015-08-10 11:40:30 +02:00
i8259.c
x86/irq: Probe for PIC presence before allocating descs for legacy IRQs
2015-11-07 10:37:37 +01:00
io_delay.c
…
ioport.c
x86/iopl: Fix iopl capability check on Xen PV
2016-03-17 09:49:27 +01:00
irq_32.c
genirq: Remove irq argument from irq flow handlers
2015-09-16 15:47:51 +02:00
irq_64.c
x86/irq: Drop unlikely before IS_ERR_OR_NULL
2015-10-01 11:08:56 +02:00
irq_work.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
irq.c
x86/irq: Call irq_force_move_complete with irq descriptor
2016-01-15 13:44:01 +01:00
irqinit.c
x86/irq: Store irq descriptor in vector array
2015-08-06 00:14:59 +02:00
jump_label.c
x86/asm: Stop depending on ptrace.h in alternative.h
2016-04-29 11:56:40 +02:00
kdebugfs.c
…
kexec-bzimage64.c
KEYS: Generalise system_verify_data() to provide access to internal content
2016-04-06 16:14:24 +01:00
kgdb.c
x86/asm: Stop depending on ptrace.h in alternative.h
2016-04-29 11:56:40 +02:00
ksysfs.c
…
kvm.c
Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-05-16 15:54:01 -07:00
kvmclock.c
x86: Fix misspellings in comments
2016-02-24 08:44:58 +01:00
ldt.c
x86/mm: Factor out LDT init from context init
2016-02-18 19:46:31 +01:00
machine_kexec_32.c
x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h
2014-12-16 14:08:17 +01:00
machine_kexec_64.c
kexec: provide arch_kexec_protect(unprotect)_crashkres()
2016-05-23 17:04:14 -07:00
Makefile
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
2016-05-17 17:11:27 -07:00
mcount_64.S
ftrace/x86: Set ftrace_stub to weak to prevent gcc from using short jumps to it
2016-05-20 13:28:40 -04:00
mmconf-fam10h_64.c
…
module.c
x86/asm: Stop depending on ptrace.h in alternative.h
2016-04-29 11:56:40 +02:00
mpparse.c
x86/cpufeature: Use enum cpuid_leafs instead of magic numbers
2016-02-01 10:46:48 +01:00
msr.c
x86/cpufeature: Carve out X86_FEATURE_*
2016-01-30 11:22:17 +01:00
nmi_selftest.c
…
nmi.c
x86/nmi: Mark 'ignore_nmis' as __read_mostly
2016-03-08 12:48:19 +01:00
paravirt_patch_32.c
x86/paravirt: Remove the unused irq_enable_sysexit pv op
2015-11-23 10:48:16 +01:00
paravirt_patch_64.c
x86/entry, x86/paravirt: Remove the unused usergs_sysret32 PV op
2015-11-23 10:48:16 +01:00
paravirt-spinlocks.c
locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS
2015-05-11 09:52:09 +02:00
paravirt.c
Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-05-16 15:54:01 -07:00
pci-calgary_64.c
x86/platform/calgary: Constify cal_chipset_ops structures
2015-11-29 08:50:58 +01:00
pci-dma.c
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
pci-iommu_table.c
x86: Fix non-static inlines
2016-04-16 13:21:40 +02:00
pci-nommu.c
…
pci-swiotlb.c
x86/mm/64: Enable SWIOTLB if system has SRAT memory regions above MAX_DMA32_PFN
2015-12-06 12:46:31 +01:00
pcspeaker.c
…
perf_regs.c
perf/x86/64: Report regs_user->ax too in get_regs_user()
2015-04-11 13:08:53 +02:00
platform-quirks.c
x86/init: Disable pnpbios and rtc for X86_SUBARCH_CE4100
2016-04-22 10:29:09 +02:00
pmem.c
x86, kexec, nvdimm: Use walk_iomem_res_desc() for iomem search
2016-01-30 09:49:59 +01:00
probe_roms.c
…
process_32.c
sched/core, sched/x86: Kill thread_info::saved_preempt_count
2015-10-06 17:08:18 +02:00
process_64.c
x86/fsgsbase/64: Use TASK_SIZE_MAX for FSBASE/GSBASE upper limits
2016-05-20 09:10:03 +02:00
process.c
exit_thread: accept a task parameter to be exited
2016-05-20 17:58:30 -07:00
ptrace.c
x86/fsgsbase/64: Use TASK_SIZE_MAX for FSBASE/GSBASE upper limits
2016-05-20 09:10:03 +02:00
pvclock.c
x86/vdso: Remove pvclock fixmap machinery
2015-12-11 08:56:03 +01:00
quirks.c
timers/x86/hpet: Type adjustments
2015-10-21 11:17:32 +02:00
reboot_fixups_32.c
…
reboot.c
x86/efi: Force EFI reboot to process pending capsules
2016-04-28 11:34:04 +02:00
relocate_kernel_32.S
x86/asm: Optimize unnecessarily wide TEST instructions
2015-03-07 11:12:43 +01:00
relocate_kernel_64.S
x86/asm: Replace "MOVQ $imm, %reg" with MOVL
2015-04-01 13:17:39 +02:00
resource.c
…
rtc.c
x86/init: Disable pnpbios and rtc for X86_SUBARCH_CE4100
2016-04-22 10:29:09 +02:00
setup_percpu.c
x86: Convert a few more per-CPU items to read-mostly ones
2014-11-04 20:13:28 +01:00
setup.c
ACPI / x86: Cleanup initrd related code
2016-04-18 23:59:09 +02:00
signal_compat.c
x86/compat: Move copy_siginfo_*_user32() to signal_compat.c
2015-07-06 15:28:55 +02:00
signal.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-05-16 15:15:17 -07:00
smp.c
x86/smp: Remove single IPI wrapper
2015-11-05 13:07:54 +01:00
smpboot.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-05-16 15:15:17 -07:00
stacktrace.c
perf: generalize perf_callchain
2016-02-20 00:21:44 -05:00
step.c
Merge branch 'x86/urgent' into x86/asm to fix up conflicts and to pick up fixes
2015-08-18 09:39:47 +02:00
sys_x86_64.c
x86/mm: Improve AMD Bulldozer ASLR workaround
2015-03-31 10:01:17 +02:00
sysfb_efi.c
Merge branch 'linus' into efi/core, to pick up fixes
2016-05-07 07:00:07 +02:00
sysfb_simplefb.c
x86/simplefb: Use PTR_ERR_OR_ZERO
2014-10-17 13:40:52 -07:00
sysfb.c
…
tboot.c
x86/tboot: Remove paravirt_enabled() use
2016-04-22 10:29:04 +02:00
tce_64.c
x86/cpufeature: Remove cpu_has_clflush
2016-03-31 13:35:09 +02:00
test_nx.c
x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
2016-02-22 08:51:38 +01:00
test_rodata.c
x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
2016-02-22 08:51:38 +01:00
time.c
x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'
2015-03-23 11:14:17 +01:00
tls.c
x86/tls: Synchronize segment registers in set_thread_area()
2016-04-29 11:56:42 +02:00
tls.h
…
topology.c
x86: Drop bogus __ref / __refdata annotations
2015-07-20 18:57:20 +02:00
trace_clock.c
x86/asm/tsc: Add rdtsc_ordered() and use it in trivial call sites
2015-07-06 15:23:29 +02:00
tracepoint.c
…
traps.c
x86/entry/traps: Don't force in_interrupt() to return true in IST handlers
2016-06-10 13:54:47 +02:00
tsc_msr.c
x86/tsc: Add missing Cherrytrail frequency to the table
2016-05-12 14:27:14 +02:00
tsc_sync.c
x86/asm/tsc/sync: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers
2015-07-06 15:23:29 +02:00
tsc.c
x86/tsc: Save an indentation level in recalibrate_cpu_khz()
2016-04-13 11:37:43 +02:00
uprobes.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-05-16 15:15:17 -07:00
verify_cpu.S
x86/cpufeature: Carve out X86_FEATURE_*
2016-01-30 11:22:17 +01:00
vm86_32.c
x86/cpufeature: Replace the old static_cpu_has() with safe variant
2016-01-30 11:22:18 +01:00
vmlinux.lds.S
x86/boot: Move compressed kernel to the end of the decompression buffer
2016-04-29 11:03:29 +02:00
vsmp_64.c
x86: replace __init_or_module with __init in non-modular vsmp_64.c
2015-06-16 14:12:41 -04:00
x86_init.c
x86/tsc: Remove unused tsc_pre_init() hook
2015-11-19 11:03:13 +01:00
x8664_ksyms_64.c
x86/mm, x86/mce: Add memcpy_mcsafe()
2016-03-08 17:54:38 +01:00