Commit 6c57c2c8 authored by Jeff Mahoney's avatar Jeff Mahoney Committed by Linus Torvalds

reiserfs: fix memset byte count during resize

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: default avatarJeff Mahoney <jeffm@suse.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d4c3d19d
......@@ -119,7 +119,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
return -ENOMEM;
}
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++)
bitmap[i] = old_bitmap[i];
......
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