A obvious leak, I think no description is needed.
Regards
YZ
---
diff -r a1bde8e797ff extent_map.c
--- a/extent_map.c Thu Oct 25 15:49:25 2007 -0400
+++ b/extent_map.c Sun Oct 28 21:36:03 2007 +0800
@@ -1925,6 +1925,7 @@ sector_t extent_bmap(struct address_spac
u64 start = iblock << inode->i_blkbits;
u64 end = start + (1 << inode->i_blkbits) - 1;
struct extent_map *em;
+ sector_t sector = 0;
em = get_extent(inode, NULL, 0, start, end, 0);
if (!em || IS_ERR(em))
@@ -1932,9 +1933,12 @@ sector_t extent_bmap(struct address_spac
if (em->block_start == EXTENT_MAP_INLINE ||
em->block_start == EXTENT_MAP_HOLE)
- return 0;
-
- return (em->block_start + start - em->start) >> inode->i_blkbits;
+ goto out;
+
+ sector = (em->block_start + start - em->start) >> inode->i_blkbits;
+out:
+ free_extent_map(em);
+ return sector;
}
static int add_lru(struct extent_map_tree *tree, struct extent_buffer *eb)
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