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Commit 948b9b2c authored by Jan Kara's avatar Jan Kara Committed by Linus Torvalds
Browse files

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: default avatarJan Kara <jack@suse.cz>
Acked-by: default avatarChristoph Hellwig <hch@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3bf25cb4

fs/udf/truncate.c

+3 −1
Original line number Diff line number Diff line
@@ -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);

}