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reiserfs: fix memset byte count during resize

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Correct the memset in reiserfs_resize to clear the memory allocated for the
new bitmap info structs.  Previously, it would clear the memory used by the
old size.  Depending on the contents of memory, this could cause incorrect
caching behavior for bitmap blocks in the newly allocated area.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Mahoney 2007-10-18 23:39:25 -07:00 committed by Linus Torvalds
parent d4c3d19d0c
commit 6c57c2c8d3
1 changed files with 1 additions and 1 deletions
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fs/reiserfs/resize.c
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@ -119,7 +119,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
return -ENOMEM; return -ENOMEM;
} }
memset(bitmap, 0, memset(bitmap, 0,
sizeof(struct reiserfs_bitmap_info) * SB_BMAP_NR(s)); sizeof(struct reiserfs_bitmap_info) * bmap_nr_new);
for (i = 0; i < bmap_nr; i++) for (i = 0; i < bmap_nr; i++)
bitmap[i] = old_bitmap[i]; bitmap[i] = old_bitmap[i];