From: Yan <yanzheng@21cn.com>
Date: Wed, 30 Jan 2008 16:54:04 +0000 (-0500)
Subject: Btrfs: Align extent length to sectorsize in
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b1632b10c0133992fd0290b4836c47661bed4396;p=deliverable%2Flinux.git

Btrfs: Align extent length to sectorsize in

---

Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5a38443a24ee..de17c61dfa0a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -823,6 +823,8 @@ search_again:
 					btrfs_file_extent_num_bytes(leaf, fi);
 				extent_num_bytes = inode->i_size -
 					found_key.offset + root->sectorsize - 1;
+				extent_num_bytes = extent_num_bytes &
+					~((u64)root->sectorsize - 1);
 				btrfs_set_file_extent_num_bytes(leaf, fi,
 							 extent_num_bytes);
 				num_dec = (orig_num_bytes -