tree c39999a223e8b272819c3676684c88d40aa47040
parent 5cb350baf580017da38199625b7365b1763d7180
author Gautham R Shenoy <ego@in.ibm.com> 1192460414 +0200
committer Ingo Molnar <mingo@elte.hu> 1192460414 +0200

sched: fix rt ptracer monopolizing CPU

yield() in wait_task_inactive(), can cause a high priority thread to be
scheduled back in, and there by loop forever while it is waiting for some
lower priority thread which is unfortunately still on the runqueue.

Use schedule_timeout_uninterruptible(1) instead.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Credit: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>