From: Eric Sandeen <sandeen@redhat.com> Date: Mon, 8 Oct 2007 15:49:48 -0500 Subject: [fs] udf: add assertions Message-id: 470A97EC.6020006@redhat.com O-Subject: [RHEL5 PATCH 4/7] udf: add assertions Bugzilla: 221282 From: Jan Kara <jack@suse.cz> Date: Tue, 8 May 2007 07:35:18 +0000 (-0700) Subject: udf: add assertions X-Git-Tag: v2.6.22-rc1~521 X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=948b9b2c967c3bec6136b2dbb9e1c12f62e03efa udf: add assertions Add a few assertions into udf_discard_prealloc() to check that the file is sane (mostly helps debugging further patches ;) . Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: "Stephen C. Tweedie" <sct@redhat.com> Acked-by: Josef Bacik <jbacik@redhat.com> diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c index 0449b22..0e328cd 100644 --- a/fs/udf/truncate.c +++ b/fs/udf/truncate.c @@ -88,8 +88,9 @@ void udf_discard_prealloc(struct inode * inode) { etype = netype; lbcount += elen; - if (lbcount > inode->i_size && lbcount - inode->i_size < inode->i_sb->s_blocksize) + if (lbcount > inode->i_size && lbcount - elen < inode->i_size) { + WARN_ON(lbcount - inode->i_size >= inode->i_sb->s_blocksize); nelen = elen - (lbcount - inode->i_size); epos.offset -= adsize; extent_trunc(inode, &epos, eloc, etype, elen, nelen); @@ -119,6 +120,7 @@ void udf_discard_prealloc(struct inode * inode) } UDF_I_LENEXTENTS(inode) = lbcount; + WARN_ON(lbcount != inode->i_size); brelse(epos.bh); }