From 8682164a66325cab07620082eb7f413b547f4b4a Mon Sep 17 00:00:00 2001 From: Evgeniy Dushistov Date: Mon, 29 Jan 2007 13:19:55 -0800 Subject: [PATCH] [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ufs/truncate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c index ea11d04c41..0437b0a6fe 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; -- 2.39.5