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Message-Id: <20131003040637.175658911@linuxfoundation.org>
Date: Wed, 2 Oct 2013 21:08:34 -0700
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Kent Overstreet <kmo@...erainc.com>,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [ 08/57] bcache: Fix a dumb CPU spinning bug in writeback
3.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kent Overstreet <kmo@...erainc.com>
commit 79e3dab90d9f826ceca67c7890e048ac9169de49 upstream.
schedule_timeout() != schedule_timeout_uninterruptible()
Signed-off-by: Kent Overstreet <kmo@...erainc.com>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/md/bcache/writeback.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -397,8 +397,7 @@ static void read_dirty(struct closure *c
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);
--
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