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Commit 79e3dab9 authored by Kent Overstreet's avatar Kent Overstreet Committed by Linus Torvalds
Browse files

bcache: Fix a dumb CPU spinning bug in writeback 



schedule_timeout() != schedule_timeout_uninterruptible()

Signed-off-by: default avatarKent Overstreet <kmo@daterainc.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1394d676

drivers/md/bcache/writeback.c

+1 −2
Original line number Diff line number Diff line
@@ -397,8 +397,7 @@ static void read_dirty(struct closure *cl) 
		if (delay > 0 &&

		    (KEY_START(&w->key) != dc->last_read ||

		     jiffies_to_msecs(delay) > 50))

			while (delay)

				delay = schedule_timeout(delay);

			delay = schedule_timeout_uninterruptible(delay);



		dc->last_read	= KEY_OFFSET(&w->key);