ceph: Avoid to propagate the invalid page point

The variant pagep will still get the invalid page point, although ceph
fails in function ceph_update_writeable_page.

To fix this issue, Assigne the page to pagep until there is no failure
in function ceph_update_writeable_page.

Signed-off-by: Minfei Huang <mnfhuang@gmail.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index ce3c773726c5..6dfff0ba4d98 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1149,7 +1149,6 @@ static int ceph_write_begin(struct file *file, struct address_space *mapping,
                 page = grab_cache_page_write_begin(mapping, index, 0);
                 if (!page)
                         return -ENOMEM;
-                *pagep = page;
 
                 dout("write_begin file %p inode %p page %p %d~%d\n", file,
                      inode, page, (int)pos, (int)len);