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Diffstat (limited to 'fs/btrfs/extent_map.c')
-rw-r--r--fs/btrfs/extent_map.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 9d30acca55e1..6f417ff68980 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -214,9 +214,13 @@ static int mergable_maps(struct extent_map *prev, struct extent_map *next)
ASSERT(next->block_start != EXTENT_MAP_DELALLOC &&
prev->block_start != EXTENT_MAP_DELALLOC);
+ if (prev->map_lookup || next->map_lookup)
+ ASSERT(test_bit(EXTENT_FLAG_FS_MAPPING, &prev->flags) &&
+ test_bit(EXTENT_FLAG_FS_MAPPING, &next->flags));
+
if (extent_map_end(prev) == next->start &&
prev->flags == next->flags &&
- prev->bdev == next->bdev &&
+ prev->map_lookup == next->map_lookup &&
((next->block_start == EXTENT_MAP_HOLE &&
prev->block_start == EXTENT_MAP_HOLE) ||
(next->block_start == EXTENT_MAP_INLINE &&