From: Christoph Hellwig <hch@infradead.org>
Date: Wed, 18 Aug 2010 09:29:19 +0000 (-0400)
Subject: fat: do not send discards as barriers
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e045db80d07250312500b2ed707b84dc703189d6;p=linux-beck.git

fat: do not send discards as barriers

fat already uses synchronous discards, no need to add I/O barriers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---

diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 3a56a82f5658..f9a0b7ae8648 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -579,7 +579,7 @@ int fat_free_clusters(struct inode *inode, int cluster)
 					fat_clus_to_blknr(sbi, first_cl),
 					nr_clus * sbi->sec_per_clus,
 					GFP_NOFS,
-					BLKDEV_IFL_WAIT | BLKDEV_IFL_BARRIER);
+					BLKDEV_IFL_WAIT);
 
 				first_cl = cluster;
 			}