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998bedc8c5
android_kernel_xiaomi_sdm845/tools/perf
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Frederic Weisbecker 998bedc8c5 perf tools: Fix ommitted mmap data update on remap 
Commit eac9eacee1 "perf tools: Check we are able to read the event
size on mmap" brought a check to ensure we can read the size of the
event before dereferencing it, and do a remap otherwise to move the
buffer forward.

However that remap was ommitting all the necessary work to
update the new page offset, head, and to unmap previous pages,
etc...

To fix this, gather all the code that fetches the event in a
seperate helper which does all the necessary checks about the
header/event size and tells us anytime a remap is needed.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1306148788-6179-3-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-23 13:22:57 +02:00
..
arch [S390] perf: add DWARF register lookup for s390 2011-01-05 12:47:31 +01:00
bench perf tool: Fix gcc 4.6.0 issues 2011-02-07 12:41:41 -02:00
config perf tools: git mv tools/perf/{features-tests.mak,config/} 2011-04-19 08:18:36 -03:00
Documentation Merge branches 'sched-core-for-linus' and 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-05-19 17:41:22 -07:00
python perf evlist: Store pointer to the cpu and thread maps 2011-01-31 12:40:52 -02:00
scripts perf script: Finish the rename from trace to script 2010-12-25 11:29:02 -02:00
util perf tools: Fix ommitted mmap data update on remap 2011-05-23 13:22:57 +02:00
.gitignore perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
builtin-annotate.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-bench.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-buildid-cache.c perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
builtin-buildid-list.c Merge commit 'v2.6.37-rc8' into perf/core 2011-01-04 08:08:54 +01:00
builtin-diff.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-evlist.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
builtin-help.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-inject.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kmem.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kvm.c perf options: Type check all the remaining OPT_ variants 2010-05-17 16:22:41 -03:00
builtin-list.c perf list: Allow filtering list of events 2011-02-17 15:38:58 -02:00
builtin-lock.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-probe.c perf probe: Use %td for pointer arithmetic result 2011-01-31 19:45:38 -02:00
builtin-record.c perf evlist: Fix per thread mmap setup 2011-05-15 10:02:14 -03:00
builtin-report.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-sched.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-script.c perf script: improve validation of sample attributes for output fields 2011-04-20 07:27:52 -03:00
builtin-stat.c perf stat: Add more cache-miss percentage printouts 2011-05-19 14:30:50 +02:00
builtin-test.c Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent 2011-05-22 10:10:01 +02:00
builtin-timechart.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-top.c Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent 2011-05-22 10:10:01 +02:00
builtin.h perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
command-list.txt perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
design.txt perf: Fix few typos + cosmetics 2010-01-13 17:39:44 +01:00
Makefile Merge commit 'v2.6.39-rc7' into perf/core 2011-05-10 17:05:45 +02:00
MANIFEST perf packaging: add memcpy to perf MANIFEST 2010-11-30 23:00:10 -02:00
perf-archive.sh perf buildid: add perfconfig option to specify buildid cache dir 2010-06-05 09:34:04 -03:00
perf.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
perf.h perf record: Move perf_mmap__write_tail to perf.h 2011-01-22 19:56:29 -02:00