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staging/lustre/libcfs: Do not call kthread_run in wrong state 

kthread_run might sleep during an allocation, and so
it's considered unsafe to call with a state that's not
RUNNABLE.
Move the state setting to after kthread_run call.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oleg Drokin 2016-06-20 16:55:51 -04:00 committed by Greg Kroah-Hartman
parent 025fd3c20b
commit 281a8273f6
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/lustre/lnet/libcfs/debug.c
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@ -362,12 +362,12 @@ void libcfs_debug_dumplog(void)
* get to schedule()
*/
init_waitqueue_entry(&wait, current);
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&debug_ctlwq, &wait);
dumper = kthread_run(libcfs_debug_dumplog_thread,
(void *)(long)current_pid(),
"libcfs_debug_dumper");
set_current_state(TASK_INTERRUPTIBLE);
if (IS_ERR(dumper))
pr_err("LustreError: cannot start log dump thread: %ld\n",
PTR_ERR(dumper));