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4738ca30b4
linux/tools/perf
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Arnaldo Carvalho de Melo 4738ca30b4 perf evlist: Clarify a bit the use of perf_mmap->refcnt 
This is an odd refcount use case, so add some more comments to help
understand that when it hits zero it really means that the mmap()ed area
(on a perf_event_open() returned fd) has been munmap()ed.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Elena Reshetova <elena.reshetova@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20170223162344.GD3595@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-03 19:07:16 -03:00
..
arch perf tools arm64: Add support for generating bpf prologue 2017-02-08 08:55:01 -03:00
bench perf bench numa: Make sure dprintf() is not defined 2017-02-14 15:19:18 -03:00
Documentation Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-02-28 11:38:18 -08:00
jvmti perf kvmti: Remove unused Makefile file 2016-11-14 12:42:56 -03:00
pmu-events perf vendor events: Add mapping for KnightsMill PMU events 2017-03-03 19:07:13 -03:00
python perf python: Add tracepoint example 2016-07-12 16:23:35 -03:00
scripts perf/core improvements and fixes: 2016-08-04 11:02:38 +02:00
tests perf thread_map: Convert thread_map.refcnt from atomic_t to refcount_t 2017-03-03 19:07:16 -03:00
trace perf trace: Check if MAP_32BIT is defined (again) 2016-12-20 09:37:40 -03:00
ui perf utils: Check verbose flag properly 2017-02-20 11:35:54 -03:00
util perf evlist: Clarify a bit the use of perf_mmap->refcnt 2017-03-03 19:07:16 -03:00
.gitignore perf tools: Add arch/*/include/generated/ to .gitignore 2016-05-30 12:41:46 -03:00
Build perf ftrace: Introduce new 'ftrace' tool 2017-01-26 11:43:01 -03:00
builtin-annotate.c perf annotate: Add -q/--quiet option 2017-02-20 11:47:18 -03:00
builtin-bench.c
builtin-buildid-cache.c tools: Introduce str_error_r() 2016-07-12 15:19:47 -03:00
builtin-buildid-list.c
builtin-c2c.c perf c2c report: Coalesce by default only by pid,iaddr 2017-01-20 16:52:56 -03:00
builtin-config.c perf config: Mark where are config items from (user or system) 2016-11-14 13:10:37 -03:00
builtin-data.c perf data ctf: Add '--all' option for 'perf data convert' 2016-06-28 10:54:57 -03:00
builtin-diff.c perf diff: Add -q/--quiet option 2017-02-20 11:47:08 -03:00
builtin-evlist.c perf evlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:26:15 -03:00
builtin-ftrace.c perf ftrace: Add ftrace.tracer config option 2017-01-31 16:20:09 -03:00
builtin-help.c perf tools: Propagate perf_config() errors 2017-01-27 12:23:33 -03:00
builtin-inject.c perf symbols: Remove symbol_filter_t machinery 2016-09-05 11:14:50 -03:00
builtin-kallsyms.c perf kallsyms: Introduce tool to look for extended symbol information on the running kernel 2017-01-11 16:48:01 -03:00
builtin-kmem.c perf symbols: No need to check if sym->name is NULL 2017-02-13 17:22:34 -03:00
builtin-kvm.c perf kvm: Use NSEC_PER_USEC 2016-08-23 15:37:33 -03:00
builtin-list.c perf list: Add debug support for outputing alias string 2017-02-08 08:55:04 -03:00
builtin-lock.c
builtin-mem.c perf utils: Check verbose flag properly 2017-02-20 11:35:54 -03:00
builtin-probe.c perf probe: Add option --symfs 2017-02-08 09:41:10 -03:00
builtin-record.c perf record: Honor --quiet option properly 2017-02-20 11:50:36 -03:00
builtin-report.c perf report: Add -q/--quiet option 2017-02-20 11:46:58 -03:00
builtin-sched.c perf utils: Check verbose flag properly 2017-02-20 11:35:54 -03:00
builtin-script.c perf script: Also allow forcing reading of non-root owned files by root 2017-01-16 14:59:15 -03:00
builtin-stat.c perf stat: Issue a HW watchdog disable hint 2017-03-03 19:07:13 -03:00
builtin-timechart.c perf timechart: Use NSEC_PER_U?SEC 2016-08-23 15:37:33 -03:00
builtin-top.c perf utils: Check verbose flag properly 2017-02-20 11:35:54 -03:00
builtin-trace.c perf utils: Check verbose flag properly 2017-02-20 11:35:54 -03:00
builtin-version.c
builtin.h perf ftrace: Introduce new 'ftrace' tool 2017-01-26 11:43:01 -03:00
check-headers.sh perf tools: Move headers check into bash script 2016-12-15 16:25:44 -03:00
command-list.txt perf ftrace: Introduce new 'ftrace' tool 2017-01-26 11:43:01 -03:00
CREDITS
design.txt
Makefile
Makefile.config tools perf scripting python: clang doesn't have -spec, remove it 2017-02-17 10:31:13 -03:00
Makefile.perf perf build: Add special fixdep cleaning rule 2017-02-17 16:04:38 -03:00
MANIFEST tools include: Adopt kernel's refcount.h 2017-03-03 19:07:14 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h perf powerpc: Fix build-test failure 2016-09-08 13:44:07 -03:00
perf-with-kcore.sh
perf.c perf tools: Propagate perf_config() errors 2017-01-27 12:23:33 -03:00
perf.h perf evsel: Allow to ignore missing pid 2016-12-15 16:25:46 -03:00