diff options
| author | Steven Rostedt <[email protected]> | 2011-02-08 12:39:54 -0500 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-02-16 13:35:08 +0100 |
| commit | 48228f7b470a74b6469a250d2977a13128d8fe96 (patch) | |
| tree | 1ed8f82ffef779ccf665f68c1fcf302d34d09826 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | a3ec4a603faf4244e275bf11b467aad092dfbd8a (diff) | |
lockdep/timers: Explain in detail the locking problems del_timer_sync() may cause
Twice I had to explain the output about why lockdep gives an error with
locks in IRQ context and with del_timer_sync(). Might as well write it
up and place it in the comments above the code in del_timer_sync().
Perhaps the next time this lockdep dump triggers people will understand
the issues.
It is a ticky issue and very subtle, explaining it in detail in the code
may help others understand the issue when they stumble upon the bug
again.
Signed-off-by: Steven Rostedt <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions