tree faf1ea3208d0e612968a2892917c036a32ff9bda
parent bd1c8b22b7b81c6f6c4f5c19cb2387da3d02fb0f
author Li Zefan <lizf@cn.fujitsu.com> 1291880876 +0800
committer Steven Rostedt <rostedt@goodmis.org> 1294460402 -0500

tracing: Fix preempt count leak

While running my ftrace stress test, this showed up:

BUG: sleeping function called from invalid context at mm/mmap.c:233
...
note: cat[3293] exited with preempt_count 1

The bug was introduced by commit 91e86e560d0b3ce4c5fc64fd2bbb99f856a30a4e
("tracing: Fix recursive user stack trace")

Cc: <stable@kernel.org>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4D0089AC.1020802@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>