1 files changed, 2 insertions, 0 deletions

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 -