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kernel_google_wahoo/arch/arm/kernel
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Wang Nan 994c164f35 perf/core: Set event's default ::overflow_handler() 
Set a default event->overflow_handler in perf_event_alloc() so don't
need to check event->overflow_handler in __perf_event_overflow().
Following commits can give a different default overflow_handler.

Initial idea comes from Peter:

  http://lkml.kernel.org/r/20130708121557.GA17211@twins.programming.kicks-ass.net

Since the default value of event->overflow_handler is not NULL, existing
'if (!overflow_handler)' checks need to be changed.

is_default_overflow_handler() is introduced for this.

No extra performance overhead is introduced into the hot path because in the
original code we still need to read this handler from memory. A conditional
branch is avoided so actually we remove some instructions.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <pi3orama@163.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/1459147292-239310-3-git-send-email-wangnan0@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
2022-03-04 20:16:53 +01:00
..
.gitignore
…
arch_timer.c
…
armksyms.c
ARM: 8479/2: add implementation for arm-smccc
2019-11-10 11:21:15 +01:00
asm-offsets.c
Revert "ARM: Blacklist GCC 4.8.0 to GCC 4.8.2 - PR58854"
2016-02-16 13:54:16 -08:00
atags_compat.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
atags_parse.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
atags_proc.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
atags.h
…
bios32.c
ARM/PCI: Move align_resource function pointer to pci_host_bridge structure
2015-11-25 13:23:38 -06:00
bugs.c
ARM: clean up per-processor check_bugs method call
2019-11-10 11:21:37 +01:00
calls.S
ARM: wire up mlock2 syscall
2015-11-18 11:20:24 +00:00
cpuidle.c
ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook
2016-11-21 11:48:09 +08:00
crash_dump.c
…
debug.S
ARM: unify MMU/!MMU addruart calls
2015-05-20 23:09:51 +02:00
devtree.c
Merge tag 'lsk-v4.4-16.12-android' into branch 'msm-4.4'
2017-02-28 17:10:49 -08:00
dma-isa.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
dma.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
early_printk.c
…
elf.c
…
entry-armv.S
ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt exception handling
2021-12-29 11:50:30 +01:00
entry-common.S
Merge remote-tracking branch 'common/deprecated/android-4.4' into android-msm-wahoo-4.4
2021-08-12 14:44:02 +03:00
entry-ftrace.S
ARM: replace BSYM() with badr assembly macro
2015-05-08 17:33:50 +01:00
entry-header.S
ARM: spectre-v1: fix syscall entry
2019-11-10 11:21:28 +01:00
entry-v7m.S
ARM: 8340/1: ARMv7-M: Enlarge vector table up to 256 entries
2015-05-08 10:42:21 +01:00
fiq.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
fiqasm.S
…
ftrace.c
ARM: 8668/1: ftrace: Fix dynamic ftrace with DEBUG_RODATA and !FRAME_POINTER
2018-03-24 10:58:41 +01:00
head-common.S
ARM: make lookup_processor_type() non-__init
2019-11-10 11:21:36 +01:00
head-nommu.S
ARM: 8383/1: nommu: avoid deprecated source register on mov
2015-06-12 21:18:48 +01:00
head.S
ARM: p2v: fix handling of LPAE translation in BE mode
2020-12-29 13:42:34 +01:00
hibernate.c
ARM: move reboot code to arch/arm/kernel/reboot.c
2015-04-02 09:50:45 +01:00
hw_breakpoint.c
perf/core: Set event's default ::overflow_handler()
2022-03-04 20:16:53 +01:00
hyp-stub.S
…
insn.c
…
io.c
ARM: io.c: clean up EXPORT_SYMBOL()s
2014-11-21 15:25:02 +00:00
irq.c
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
2019-03-23 08:44:33 +01:00
isa.c
…
iwmmxt.S
ARM: 8221/1: PJ4: allow building in Thumb-2 mode
2014-12-03 16:08:00 +00:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kgdb.c
ARM: kgdb: ignore breakpoint instructions from user mode
2016-02-16 13:52:25 -08:00
machine_kexec.c
ARM: avoid Cortex-A9 livelock on tight dmb loops
2019-04-27 09:33:52 +02:00
Makefile
ARM: 8918/2: only build return_address() if needed
2021-09-22 11:41:17 +02:00
module-plts.c
ARM: 8364/1: fix BE32 module loading
2015-06-02 09:58:17 +01:00
module.c
ARM: 8220/1: allow modules outside of bl range
2015-05-08 10:42:34 +01:00
module.lds
ARM: 8220/1: allow modules outside of bl range
2015-05-08 10:42:34 +01:00
opcodes.c
…
patch.c
ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
2019-04-27 09:33:59 +02:00
perf_callchain.c
perf core: Pass max stack as a perf_callchain_entry context
2022-03-04 20:16:35 +01:00
perf_event_v6.c
arm: perf: factor arm_pmu core out to drivers
2015-07-31 15:01:14 +01:00
perf_event_v7.c
ARM: perf: Set ARMv7 SDER SUNIDEN bit
2016-04-27 19:05:04 -07:00
perf_event_xscale.c
arm: perf: factor arm_pmu core out to drivers
2015-07-31 15:01:14 +01:00
perf_regs.c
perf: Move task_pt_regs sampling into arch code
2015-01-09 11:12:28 +01:00
pj4-cp0.c
ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode
2017-05-14 13:32:54 +02:00
process.c
Revert "ANDROID: arm: process: Add display of memory around registers when displaying regs."
2019-03-22 23:28:47 +00:00
psci_smp.c
arm: psci: drop info prints seen during cpu hotplug to pr_debug
2016-03-01 12:22:14 -08:00
ptrace.c
Merge 4.4.228 into android-msm-wahoo-4.4
2020-06-22 11:21:01 -07:00
reboot.c
ARM: add option to flush console before reboot
2016-02-16 13:54:02 -08:00
reboot.h
ARM: move reboot code to arch/arm/kernel/reboot.c
2015-04-02 09:50:45 +01:00
relocate_kernel.S
…
return_address.c
ARM: 8918/2: only build return_address() if needed
2021-09-22 11:41:17 +02:00
setup.c
Merge tag 'v4.4.274' into android-msm-wahoo-4.4
2021-07-24 19:28:45 +03:00
signal.c
Merge remote-tracking branch 'common/deprecated/android-4.4' into android-msm-wahoo-4.4
2021-08-12 14:44:02 +03:00
sigreturn_codes.S
…
sleep.S
ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
2020-01-29 10:21:40 +01:00
smccc-call.S
ARM: 8479/2: add implementation for arm-smccc
2019-11-10 11:21:15 +01:00
smp_scu.c
…
smp_tlb.c
ARM: 8613/1: Fix the uaccess crash on PB11MPCore
2017-01-26 08:23:49 +01:00
smp_twd.c
ARM: clean up TWD after previous patch
2015-10-09 16:22:53 +01:00
smp.c
Merge 4.4.200 into android-msm-wahoo-4.4
2019-11-13 01:57:31 -07:00
stacktrace.c
Merge remote-tracking branch 'common/android-4.4-p' into android-msm-wahoo-4.4
2021-12-27 01:16:43 +02:00
suspend.c
ARM: bugs: hook processor bug checking into SMP and suspend paths
2019-11-10 11:21:23 +01:00
swp_emulate.c
ARM: 8475/1: SWP emulation: Restore original *data when failed
2015-12-15 11:51:42 +00:00
sys_arm.c
…
sys_oabi-compat.c
ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user()
2019-11-10 11:21:33 +01:00
tcm.c
ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
2015-06-06 10:37:28 +01:00
thumbee.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
time.c
clocksource: cosmetic: Drop OF 'dependency' from symbols
2015-10-01 02:18:39 +02:00
topology.c
Revert "ANDROID: cpufreq: Add transient max freq for hw thermals"
2017-06-30 17:31:58 +00:00
traps.c
Merge 4.4.133 into android-msm-wahoo-4.4-lts
2018-07-30 06:57:27 -07:00
unwind.c
ARM: 8840/1: use a raw_spinlock_t in unwind
2019-04-27 09:33:50 +02:00
v7m.c
…
vdso.c
Merge 4.4.217 into android-msm-wahoo-4.4
2020-03-20 09:13:33 -07:00
vmlinux.lds.S
UPSTREAM: arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections
2017-12-14 08:26:37 -08:00
xscale-cp0.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00