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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>
This commit is contained in:
Jan Kara 2007-05-08 00:35:18 -07:00 committed by Linus Torvalds
parent 3bf25cb40d
commit 948b9b2c96
1 changed files with 3 additions and 1 deletions
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4
fs/udf/truncate.c
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@ -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);
}