btrfs: fix message not properly printing interval when adding extent map

At btrfs_add_extent_mapping(), if we are unable to merge the existing extent map, we print a warning message that suggests interval ranges in the form "[X, Y)", where the first element is the inclusive start offset of a range and the second element is the exclusive end offset. However we end up printing the length of the ranges instead of the exclusive end offsets. So fix this by printing the range end offsets. Reviewed-by: Qu Wenruo <[email protected]> Reviewed-by: Anand Jain <[email protected]> Signed-off-by: Filipe Manana <[email protected]> Reviewed-by: David Sterba <[email protected]> Signed-off-by: David Sterba <[email protected]>
btrfs · Mar 15, 2024 · 0305afd · 0305afd
1 parent 7b3851c
commit 0305afd
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
@@ -634,8 +634,8 @@ int btrfs_add_extent_mapping(struct btrfs_fs_info *fs_info,
 				*em_in = NULL;
 				WARN_ONCE(ret,
 "extent map merge error existing [%llu, %llu) with em [%llu, %llu) start %llu\n",
-					  existing->start, existing->len,
-					  orig_start, orig_len, start);
+					  existing->start, extent_map_end(existing),
+					  orig_start, orig_start + orig_len, start);
 			}
 			free_extent_map(existing);
 		}