From: Gunnar Beutner <gunnar@beutner.name>
Date: Wed, 12 Oct 2011 10:49:18 +0000 (+0200)
Subject: vn_rdwr() didn't properly advance the file position
X-Git-Tag: spl-0.6.0-rc7~39
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f3989ed3223363330af014062caeeb1afbd0503f;p=spl

vn_rdwr() didn't properly advance the file position

This would cause problems when using 'zfs send' with a file as the
target (rather than a pipe or a socket as is usually the case) as
for each write the destination offset in the file would be 0.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes ZFS issue #391
---

diff --git a/module/spl/spl-vnode.c b/module/spl/spl-vnode.c
index 1b5cc5a..354e879 100644
--- a/module/spl/spl-vnode.c
+++ b/module/spl/spl-vnode.c
@@ -247,6 +247,7 @@ vn_rdwr(uio_rw_t uio, vnode_t *vp, void *addr, ssize_t len, offset_t off,
 		rc = vfs_read(fp, addr, len, &offset);
 
 	set_fs(saved_fs);
+	fp->f_pos = offset;
 
 	if (rc < 0)
 		SRETURN(-rc);