From 7f8f5a043ea63256f8a5f7454cea735ba722f6e8 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Fri, 8 Jun 2012 15:45:44 +1000
Subject: [PATCH] --- yaml --- r: 319829 b: refs/heads/master c:
 5276432997feb2366ac1e77949e94fe86a394813 h: refs/heads/master i:   319827:
 8b954fee5f0fe380392c932207e034177d2a5a20 v: v3

---
 [refs]                  |  2 +-
 trunk/fs/xfs/xfs_file.c | 17 +++--------------
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/[refs] b/[refs]
index a0cc65568892..66586e8b8f9b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 32972383ca46223aa2b129826b3789721ec147aa
+refs/heads/master: 5276432997feb2366ac1e77949e94fe86a394813
diff --git a/trunk/fs/xfs/xfs_file.c b/trunk/fs/xfs/xfs_file.c
index 59e22c989cd4..c4559c6e6f2c 100644
--- a/trunk/fs/xfs/xfs_file.c
+++ b/trunk/fs/xfs/xfs_file.c
@@ -236,7 +236,6 @@ xfs_file_aio_read(
 	ssize_t			ret = 0;
 	int			ioflags = 0;
 	xfs_fsize_t		n;
-	unsigned long		seg;
 
 	XFS_STATS_INC(xs_read_calls);
 
@@ -247,19 +246,9 @@ xfs_file_aio_read(
 	if (file->f_mode & FMODE_NOCMTIME)
 		ioflags |= IO_INVIS;
 
-	/* START copy & waste from filemap.c */
-	for (seg = 0; seg < nr_segs; seg++) {
-		const struct iovec *iv = &iovp[seg];
-
-		/*
-		 * If any segment has a negative length, or the cumulative
-		 * length ever wraps negative then return -EINVAL.
-		 */
-		size += iv->iov_len;
-		if (unlikely((ssize_t)(size|iv->iov_len) < 0))
-			return XFS_ERROR(-EINVAL);
-	}
-	/* END copy & waste from filemap.c */
+	ret = generic_segment_checks(iovp, &nr_segs, &size, VERIFY_WRITE);
+	if (ret < 0)
+		return ret;
 
 	if (unlikely(ioflags & IO_ISDIRECT)) {
 		xfs_buftarg_t	*target =