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authorEvgeniy Dushistov <dushistov@mail.ru>2007-01-29 13:19:55 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-30 08:26:45 -0800
commit8682164a66325cab07620082eb7f413b547f4b4a (patch)
treec8e7b5456a71b58506b182ffa0997271d8ec03fa
parenta685e26fff387db350966f88eaad515bf41c4705 (diff)
downloadlinux-2.6.34-ux500-8682164a66325cab07620082eb7f413b547f4b4a.tar.gz
[PATCH] ufs: truncate negative to unsigned fix
During ufs_trunc_direct which is subroutine of ufs::truncate, we try the first of all free parts of block and then whole blocks. But we calculate size of block's part to free in the wrong way. This may cause bad update of used blocks and fragments statistic, and you can got report that you have free 32T on 1Gb partition. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/ufs/truncate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index ea11d04c41a..0437b0a6fe9 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -109,10 +109,10 @@ static int ufs_trunc_direct (struct inode * inode)
tmp = fs32_to_cpu(sb, *p);
if (!tmp )
ufs_panic (sb, "ufs_trunc_direct", "internal error");
+ frag2 -= frag1;
frag1 = ufs_fragnum (frag1);
- frag2 = ufs_fragnum (frag2);
- ufs_free_fragments (inode, tmp + frag1, frag2 - frag1);
+ ufs_free_fragments(inode, tmp + frag1, frag2);
mark_inode_dirty(inode);
frag_to_free = tmp + frag1;