[XFS] Fix kmem_zalloc_greedy warnings on 64 bit platforms.

SGI-PV: 955302
SGI-Modid: xfs-linux-melb:xfs-kern:26907a

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index e338d6c..b608b8a 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -325,7 +325,7 @@
 	xfs_agino_t		gino;	/* current btree rec's start inode */
 	int			i;	/* loop index */
 	int			icount;	/* count of inodes good in irbuf */
-	int			irbsize; /* size of irec buffer in bytes */
+	size_t			irbsize; /* size of irec buffer in bytes */
 	xfs_ino_t		ino;	/* inode number (filesystem) */
 	xfs_inobt_rec_incore_t	*irbp;	/* current irec buffer pointer */
 	xfs_inobt_rec_incore_t	*irbuf;	/* start of irec buffer */