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sched: Use WARN_ONCE for the might_sleep() TASK_RUNNING test

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In some cases this can trigger a true flood of output.

Requested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2014-10-29 17:08:45 +01:00 committed by Ingo Molnar
parent ff960a7317
commit e7097e8bd0
1 changed files with 1 additions and 1 deletions
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kernel/sched/core.c
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@ -7301,7 +7301,7 @@ void __might_sleep(const char *file, int line, int preempt_offset)
* since we will exit with TASK_RUNNING make sure we enter with it, * since we will exit with TASK_RUNNING make sure we enter with it,
* otherwise we will destroy state. * otherwise we will destroy state.
*/ */
if (WARN(current->state != TASK_RUNNING, if (WARN_ONCE(current->state != TASK_RUNNING,
"do not call blocking ops when !TASK_RUNNING; " "do not call blocking ops when !TASK_RUNNING; "
"state=%lx set at [<%p>] %pS\n", "state=%lx set at [<%p>] %pS\n",
current->state, current->state,