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Commit 3f776e8a authored by Anton Blanchard's avatar Anton Blanchard Committed by Roland Dreier
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IB/fmr_pool: Stop ib_fmr threads from contributing to load average 



I noticed my machine was at a constant load average of 1. This was
because ib_create_fmr_pool calls kthread_create but does not
immediately wake the thread up.

Change to using kthread_run so we enter ib_fmr_cleanup_thread(), set
TASK_INTERRUPTIBLE, then go to sleep.

Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 164ef7a2

drivers/infiniband/core/fmr_pool.c

+4 −4
Original line number Original line Diff line number Diff line
@@ -291,7 +291,7 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd, 
	atomic_set(&pool->flush_ser, 0);

	atomic_set(&pool->flush_ser, 0);

	init_waitqueue_head(&pool->force_wait);

	init_waitqueue_head(&pool->force_wait);





	pool->thread = kthread_create(ib_fmr_cleanup_thread,

	pool->thread = kthread_run(ib_fmr_cleanup_thread,

				   pool,

				   pool,

				   "ib_fmr(%s)",

				   "ib_fmr(%s)",

				   device->name);

				   device->name);