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bcache: Fix a dumb CPU spinning bug in writeback

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commit 79e3dab90d upstream.

schedule_timeout() != schedule_timeout_uninterruptible()

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kent Overstreet
2013-09-23 23:17:33 -07:00
committed by Greg Kroah-Hartman
parent 77dbabefd6
commit ff1a51b9bf
1 changed files with 1 additions and 2 deletions
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3
drivers/md/bcache/writeback.c
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@@ -327,8 +327,7 @@ 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);