aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/util/scripting-engines/trace-event-python.c
diff options
context:
space:
mode:
authorPeter Zijlstra <[email protected]>2011-06-06 12:32:43 +0200
committerIngo Molnar <[email protected]>2011-06-07 12:25:50 +0200
commitf2513cde93f0957d5dc6c09bc24b0cccd27d8e1d (patch)
treeb461cb0836170eb555b20818802c121c79e76d33 /tools/perf/util/scripting-engines/trace-event-python.c
parentf339b9dc1f03591761d5d930800db24bc0eda1e1 (diff)
lockdep: Fix lock_is_held() on recursion
The main lock_is_held() user is lockdep_assert_held(), avoid false assertions in lockdep_off() sections by unconditionally reporting the lock is taken. [ the reason this is important is a lockdep_assert_held() in ttwu() which triggers a warning under lockdep_off() as in printk() which can trigger another wakeup and lock up due to spinlock recursion, as reported and heroically debugged by Arne Jansen ] Reported-and-tested-by: Arne Jansen <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: <[email protected]> Link: http://lkml.kernel.org/r/1307398759.2497.966.camel@laptop 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