]> err.no Git - linux-2.6/commit
ftrace: add UNINTERRUPTIBLE state for kftraced on disable
authorSteven Rostedt <srostedt@redhat.com>
Mon, 12 May 2008 19:20:55 +0000 (21:20 +0200)
committerThomas Gleixner <tglx@linutronix.de>
Fri, 23 May 2008 19:15:42 +0000 (21:15 +0200)
commit07a267cdd2fd7d1de9455b1e36a1635ace7276c7
tree886495b48c0e10866aa92e61e0dbd247a7e80e25
parentc1d2327b36f2261ffa8ff7227321ba900c7eee7f
ftrace: add UNINTERRUPTIBLE state for kftraced on disable

When dynamic ftrace fails and sets itself disabled, the ftraced daemon
will go back to sleep everytime it wakes up. The setting of the
ftraced state to UNINTERRUPTIBLE is skipped in this process, and the
daemon takes up 100% of the CPU.  This patch makes sure the ftraced daemon
sets itself to UNINTERRUPTIBLE in that loop.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/trace/ftrace.c