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| author |   Sonny Rao <sonnyrao@chromium.org> | 2011-07-14 13:34:43 +1000 |
|---|---|---|
| committer |   Steven Rostedt <rostedt@goodmis.org> | 2011-07-14 15:53:01 -0400 |
| commit | 259032bfe379281bf7cba512b7705bdb4ce41db5 (patch) | |
| tree | 56c656f3ecb9779e70f6c9a3ad1db68a7a38a6ca /kernel/trace | |
| parent | ftrace: Fix dynamic selftest failure on some archs (diff) | |
| download | linux-dev-259032bfe379281bf7cba512b7705bdb4ce41db5.tar.xz linux-dev-259032bfe379281bf7cba512b7705bdb4ce41db5.zip | |
perf: Robustify proc and debugfs file recording
While attempting to create a timechart of boot up I found perf didn't
tolerate modules being loaded/unloaded. This patch fixes this by
reading the file once and then writing the size read at the correct
point in the file. It also simplifies the code somewhat.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Link: http://lkml.kernel.org/r/10011.1310614483@neuling.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions