lkml.org 
[lkml]   [2007]   [Jan]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 2/3] 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>

---

Index: linux-2.6.20-rc5/fs/ufs/truncate.c
===================================================================
--- linux-2.6.20-rc5.orig/fs/ufs/truncate.c
+++ linux-2.6.20-rc5/fs/ufs/truncate.c
@@ -109,10 +109,10 @@ static int ufs_trunc_direct (struct inod
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;

--
/Evgeniy
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-01-22 16:35    [W:0.024 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site