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8e67b7258e
kernel_optimize_test/tools/perf
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Namhyung Kim 8e67b7258e perf symbols: Protect dso cache tree using dso->lock 
The dso cache is accessed during dwarf callchain unwind and it might be
processed concurrently.  Protect it under dso->lock.

Note that it doesn't protect dso_cache__find().  I think it's safe to
access to the cache tree without the lock since we don't delete nodes.

It it missed an existing node due to rotation, it'll find it during
dso_cache__insert() anyway.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1431909055-21442-27-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-18 10:17:37 -03:00
..
arch perf probe ppc64le: Fixup function entry if using kallsyms lookup 2015-05-04 12:43:47 -03:00
bench Merge branch 'perf/urgent' into perf/core, to resolve conflicts 2015-05-11 11:56:27 +02:00
config perf build: Disable libdw DWARF unwind when built with NO_DWARF 2015-05-08 16:43:14 -03:00
Documentation perf tools: Document relation of per-thread event count feature 2015-05-12 09:59:48 -03:00
python
scripts
tests perf tools: Use atomic.h for the map_groups refcount 2015-05-15 15:20:44 -03:00
ui perf tools: Move TUI-specific fields out of map_symbol 2015-05-05 18:13:24 -03:00
util perf symbols: Protect dso cache tree using dso->lock 2015-05-18 10:17:37 -03:00
.gitignore perf build: Use FEATURE-DUMP instead of PERF-FEATURES in the .gitignore file 2015-03-20 17:49:51 -03:00
Build
builtin-annotate.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-bench.c perf bench futex: Support parallel waker threads 2015-05-08 16:23:50 -03:00
builtin-buildid-cache.c perf buildid-cache: Show usage with incorrect params 2015-02-27 15:52:40 -03:00
builtin-buildid-list.c perf tools: Hit all build ids when AUX area tracing 2015-05-04 19:49:42 -03:00
builtin-data.c perf data: Support using -f to override perf.data file ownership for 'convert' 2015-04-02 13:18:52 -03:00
builtin-diff.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-evlist.c perf evlist: Support using -f to override perf.data file ownership 2015-04-02 13:18:45 -03:00
builtin-help.c perf tools: Add the bash completion for listing subsubcommands of perf help 2015-03-19 13:49:39 -03:00
builtin-inject.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-kmem.c perf kmem: Fix compiler warning about may be accessing uninitialized variable 2015-05-12 09:59:47 -03:00
builtin-kvm.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-list.c
builtin-lock.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-mem.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-probe.c perf probe: Add --range option to show a variable's location range 2015-05-12 09:59:50 -03:00
builtin-record.c perf record: Add AUX area tracing Snapshot Mode support 2015-05-05 18:13:01 -03:00
builtin-report.c perf report: Do not restrict -T option by other options 2015-05-12 09:59:51 -03:00
builtin-sched.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-script.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-stat.c perf stat: Add metrics support for exclude_idle 2015-04-29 10:38:06 -03:00
builtin-timechart.c perf tools: Elliminate alignment holes 2015-05-18 10:17:33 -03:00
builtin-top.c Merge branch 'perf/urgent' into perf/core, to resolve conflicts 2015-05-11 11:56:27 +02:00
builtin-trace.c perf trace: Fix the build on older distros 2015-05-14 19:27:46 -03:00
builtin.h
command-list.txt
CREDITS
design.txt
Makefile perf tools: Use getconf to determine number of online CPUs 2015-05-04 12:43:40 -03:00
Makefile.perf perf tools: Add build option NO_AUXTRACE to exclude AUX area tracing 2015-05-05 18:12:53 -03:00
MANIFEST tools include: Add basic atomic.h implementation from the kernel sources 2015-05-08 16:11:05 -03:00
perf-archive.sh
perf-completion.sh perf tools: Avoid confusion with preloaded bash function for perf bash completion 2015-03-19 13:53:27 -03:00
perf-read-vdso.c
perf-sys.h perf tools: Move generic barriers out of perf-sys.h 2015-05-08 16:05:08 -03:00
perf-with-kcore.sh
perf.c
perf.h perf tools: Add AUX area tracing Snapshot Mode 2015-05-05 18:13:00 -03:00