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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-06 07:59:36 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-06 07:59:36 -0800 |
commit | 203b6609e0ede49eb0b97008b1150c69e9d2ffd3 (patch) | |
tree | 7d9c1227eeec17f75b2a827e385387f640a365a6 /lib | |
parent | 3478588b5136966c80c571cf0006f08e9e5b8f04 (diff) | |
parent | c978b9460fe1d4a1e1effa0abd6bd69b18a098a8 (diff) |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Lots of tooling updates - too many to list, here's a few highlights:
- Various subcommand updates to 'perf trace', 'perf report', 'perf
record', 'perf annotate', 'perf script', 'perf test', etc.
- CPU and NUMA topology and affinity handling improvements,
- HW tracing and HW support updates:
- Intel PT updates
- ARM CoreSight updates
- vendor HW event updates
- BPF updates
- Tons of infrastructure updates, both on the build system and the
library support side
- Documentation updates.
- ... and lots of other changes, see the changelog for details.
Kernel side updates:
- Tighten up kprobes blacklist handling, reduce the number of places
where developers can install a kprobe and hang/crash the system.
- Fix/enhance vma address filter handling.
- Various PMU driver updates, small fixes and additions.
- refcount_t conversions
- BPF updates
- error code propagation enhancements
- misc other changes"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (238 commits)
perf script python: Add Python3 support to syscall-counts-by-pid.py
perf script python: Add Python3 support to syscall-counts.py
perf script python: Add Python3 support to stat-cpi.py
perf script python: Add Python3 support to stackcollapse.py
perf script python: Add Python3 support to sctop.py
perf script python: Add Python3 support to powerpc-hcalls.py
perf script python: Add Python3 support to net_dropmonitor.py
perf script python: Add Python3 support to mem-phys-addr.py
perf script python: Add Python3 support to failed-syscalls-by-pid.py
perf script python: Add Python3 support to netdev-times.py
perf tools: Add perf_exe() helper to find perf binary
perf script: Handle missing fields with -F +..
perf data: Add perf_data__open_dir_data function
perf data: Add perf_data__(create_dir|close_dir) functions
perf data: Fail check_backup in case of error
perf data: Make check_backup work over directories
perf tools: Add rm_rf_perf_data function
perf tools: Add pattern name checking to rm_rf
perf tools: Add depth checking to rm_rf
perf data: Add global path holder
...
Diffstat (limited to 'lib')
-rw-r--r-- | lib/bsearch.c | 2 | ||||
-rw-r--r-- | lib/smp_processor_id.c | 7 |
2 files changed, 7 insertions, 2 deletions
diff --git a/lib/bsearch.c b/lib/bsearch.c index 18b445b010c3..82512fe7b33c 100644 --- a/lib/bsearch.c +++ b/lib/bsearch.c @@ -11,6 +11,7 @@ #include <linux/export.h> #include <linux/bsearch.h> +#include <linux/kprobes.h> /* * bsearch - binary search an array of elements @@ -53,3 +54,4 @@ void *bsearch(const void *key, const void *base, size_t num, size_t size, return NULL; } EXPORT_SYMBOL(bsearch); +NOKPROBE_SYMBOL(bsearch); diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c index 85925aaa4fff..157d9e31f6c2 100644 --- a/lib/smp_processor_id.c +++ b/lib/smp_processor_id.c @@ -5,10 +5,11 @@ * DEBUG_PREEMPT variant of smp_processor_id(). */ #include <linux/export.h> +#include <linux/kprobes.h> #include <linux/sched.h> -notrace static unsigned int check_preemption_disabled(const char *what1, - const char *what2) +notrace static nokprobe_inline +unsigned int check_preemption_disabled(const char *what1, const char *what2) { int this_cpu = raw_smp_processor_id(); @@ -56,9 +57,11 @@ notrace unsigned int debug_smp_processor_id(void) return check_preemption_disabled("smp_processor_id", ""); } EXPORT_SYMBOL(debug_smp_processor_id); +NOKPROBE_SYMBOL(debug_smp_processor_id); notrace void __this_cpu_preempt_check(const char *op) { check_preemption_disabled("__this_cpu_", op); } EXPORT_SYMBOL(__this_cpu_preempt_check); +NOKPROBE_SYMBOL(__this_cpu_preempt_check); |