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authorLiu Bo <bo.li.liu@oracle.com>2013-01-07 03:53:08 +0000
committerJosef Bacik <josef@toxicpanda.com>2013-01-14 13:53:22 -0500
commit1214b53f90131fee1f950010c43e92455fe598ab (patch)
treed2c3c55c3f86f539013fbbee2980f13ac312fb7d /fs
parent3268a2468eb6a31af89930cbae58a62fe6ca6d2d (diff)
Btrfs: fix off-by-one in lseek
Lock end is inclusive. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/file.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 20452c110d7..fa48051484b 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2242,6 +2242,7 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
if (lockend <= lockstart)
lockend = lockstart + root->sectorsize;
+ lockend--;
len = lockend - lockstart + 1;
len = max_t(u64, len, root->sectorsize);