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author | Adrian Hunter <[email protected]> | 2014-07-22 16:17:10 +0300 |
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committer | Arnaldo Carvalho de Melo <[email protected]> | 2014-07-23 11:12:59 -0300 |
commit | deaff8b659cf4d34181c087b8cdf74f1eb17b02b (patch) | |
tree | c8ea4c936701091f4bc8a238fe8cbbe5d6d560de /fs/jbd2/commit.c | |
parent | a6f6ae99f12e8154d5cde6e8366fc228f68d6ae5 (diff) |
perf tools: Fix jump label always changing during tracing
Intel PT decoding walks the object code to reconstruct the trace. A
jump label change during tracing causes decoding errors.
The "Enable close-on-exec flag on perf file descriptor" patch caused
there to be always a jump label change.
It was found that using a per-cpu context instead of a per-thread
context for the probe of the close-on-exec feature, made the problem go
away.
Signed-off-by: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions