From: Yan, Zheng <zyan@redhat.com>
Date: Tue, 23 May 2017 09:03:12 +0000 (+0800)
Subject: ceph: remove useless page->mapping check in writepage_nounlock()
X-Git-Tag: v4.14-rc1~497^2~41
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f2b0c45f09796f87723a1225c919035457f72b7a;p=platform%2Fkernel%2Flinux-rpi.git

ceph: remove useless page->mapping check in writepage_nounlock()

Callers of writepage_nounlock() have already ensured non-null
page->mapping.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 82220e9..96f83a4 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -534,10 +534,6 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 
 	dout("writepage %p idx %lu\n", page, page->index);
 
-	if (!page->mapping || !page->mapping->host) {
-		dout("writepage %p - no mapping\n", page);
-		return -EFAULT;
-	}
 	inode = page->mapping->host;
 	ci = ceph_inode(inode);
 	fsc = ceph_inode_to_client(inode);