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>
2013-01-07 03:53:08 +00:00 · 2013-01-07 03:53:08 +00:00 · 1214b53f90
parent 3268a2468e
commit 1214b53f90
1 changed files with 1 additions and 0 deletions
--- 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);