[dm-devel] [PATCH 27/30] fat: do not send discards as barriers

[Tejun Heo]

From: Christoph Hellwig <hch at infradead.org>

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

Signed-off-by: Christoph Hellwig <hch at lst.de>
Signed-off-by: Tejun Heo <tj at kernel.org>
---
 fs/fat/fatent.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 3a56a82..f9a0b7a 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;
 			}
-- 
1.7.1