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(parent: 3ad6063) | patch
ring-buffer: change WARN_ON from checking preempt_count to preemptible
authorSteven Rostedt <srostedt@redhat.com>
Thu, 7 May 2009 23:58:55 +0000 (19:58 -0400)
committerSteven Rostedt <rostedt@goodmis.org>
Fri, 8 May 2009 00:01:11 +0000 (20:01 -0400)
commit0c3c8618e1add4494b4cf0375f38e38836844b57
treefa4074dff8913c25a9192c65c112de25cf07fbf4tree | snapshot
parent3ad6063f7218b09d8d2626753d1c6321b11d82a7commit | diff
ring-buffer: change WARN_ON from checking preempt_count to preemptible

There's a WARN_ON in the ring buffer code that makes sure preemption
is disabled. It checks "!preempt_count()". But when CONFIG_PREEMPT is not
enabled, preempt_count() is always zero, and this will trigger the warning.

[ Impact: prevent false warning on non preemptible kernels ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
kernel/trace/ring_buffer.c diff | blob | history
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