[PATCH 08/11] bcache: Fix a dumb CPU spinning bug in writeback

[Kent Overstreet]

schedule_timeout() != schedule_timeout_uninterruptible()

Signed-off-by: Kent Overstreet <kmo@xxxxxxxxxxxxx>
Cc: linux-stable <stable@xxxxxxxxxxxxxxx> # >= v3.10
---
 drivers/md/bcache/writeback.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 27ac519..ba3ee48 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -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);
 
-- 
1.8.4.rc3

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