btrfs_drop_extent fixe for inline items > 8K

When truncating a inline extent, btrfs_drop_extents doesn't properly
handle the case "key.offset > inline_limit". This bug can only happen
when max line size is larger than 8K.

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

1 files changed, 3 insertions, 5 deletions

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 7c10a90362ff..7cbf8d8d7e27 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -591,8 +591,7 @@ next_slot:
                                 }
                         }
                         bookend = 1;
-                        if (found_inline && start <= key.offset &&
-                            inline_limit < extent_end)
+                        if (found_inline && start <= key.offset)
                                 keep = 1;
                 }
                 /* truncate existing extent */
@@ -672,11 +671,10 @@ next_slot:
                         if (!bookend)
                                 continue;
                 }
-                if (bookend && found_inline && start <= key.offset &&
-                    inline_limit < extent_end && key.offset <= inline_limit) {
+                if (bookend && found_inline && start <= key.offset) {
                         u32 new_size;
                         new_size = btrfs_file_extent_calc_inline_size(
-                                                   extent_end - inline_limit);
+                                                   extent_end - end);
                         btrfs_truncate_item(trans, root, path, new_size, 0);
                 }
                 /* create bookend, splitting the extent in two */