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-rw-r--r--fs/btrfs/file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index ca7e5d4474e..26826a54335 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -236,7 +236,7 @@ static int dirty_and_release_pages(struct btrfs_trans_handle *trans,
end_pos - start_pos, p, 0);
BUG_ON(err);
em->start = start_pos;
- em->end = end_pos;
+ em->end = end_pos - 1;
em->block_start = EXTENT_MAP_INLINE;
em->block_end = EXTENT_MAP_INLINE;
add_extent_mapping(em_tree, em);