linux-kernel - [PATCH 3.14 007/130] bcache: Add a cond

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Message-Id: <20160301234500.035042408@linuxfoundation.org>
Date:	Tue,  1 Mar 2016 15:44:18 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Takashi Iwai <tiwai@...e.de>,
	Eric Wheeler <bcache@...ux.ewheeler.net>,
	Kent Overstreet <kmo@...erainc.com>, Jens Axboe <axboe@...com>
Subject: [PATCH 3.14 007/130] bcache: Add a cond_resched() call to gc

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kent Overstreet <kmo@...erainc.com>

commit c5f1e5adf956e3ba82d204c7c141a75da9fa449a upstream.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
Tested-by: Eric Wheeler <bcache@...ux.ewheeler.net>
Cc: Kent Overstreet <kmo@...erainc.com>
Signed-off-by: Jens Axboe <axboe@...com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/md/bcache/btree.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1641,6 +1641,7 @@ static void bch_btree_gc(struct cache_se
 	do {
 		ret = btree_root(gc_root, c, &op, &writes, &stats);
 		closure_sync(&writes);
+		cond_resched();
 
 		if (ret && ret != -EAGAIN)
 			pr_warn("gc failed!");