ceph: redirty page before returning AOP_WRITEPAGE_ACTIVATE

The page has been marked clean before writepage is called.  If we don't
redirty it before postponing the write, it might never get written.

Cc: stable@vger.kernel.org
Fixes: 503d4fa6ee28 ("ceph: remove reliance on bdi congestion")
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 1340d77124ae4db09c3b96548acdf1cd8a6c3fb0..ee9caf7916fb95931e08e41467cc97ddba950c0b 100644 (file)
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -795,8 +795,10 @@ static int ceph_writepage(struct page *page, struct writeback_control *wbc)
        ihold(inode);
 
        if (wbc->sync_mode == WB_SYNC_NONE &&
-           ceph_inode_to_fs_client(inode)->write_congested)
+           ceph_inode_to_fs_client(inode)->write_congested) {
+               redirty_page_for_writepage(wbc, page);
                return AOP_WRITEPAGE_ACTIVATE;
+       }
 
        wait_on_page_fscache(page);