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>
This commit is contained in:
Steven Rostedt 2009-05-07 19:58:55 -04:00 • committed by Steven Rostedt
commit 74f4fd2166