From 6fc1fe5e4cfc8939ee59a570b087946042a30140 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 4 Apr 2017 08:39:44 -0400 Subject: [PATCH] Revert "ceph: SetPageError() for writeback pages if writepages fails" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This reverts commit b109eec6f4332bd517e2f41e207037c4b9065094. If I'm filling up a filesystem with this sort of command: $ dd if=/dev/urandom of=/mnt/cephfs/fillfile bs=2M oflag=sync ...then I'll eventually get back EIO on a write. Further calls will give us ENOSPC. I'm not sure what prompted this change, but I don't think it's what we want to do. If writepages failed, we will have already set the mapping error appropriately, and that's what gets reported by fsync() or close(). __filemap_fdatawait_range however, does this: wait_on_page_writeback(page); if (TestClearPageError(page)) ret = -EIO; ...and that -EIO ends up trumping the mapping's error if one exists. When writepages fails, we only want to set the error in the mapping, and not flag the individual pages. Signed-off-by: Jeff Layton Reviewed-by: "Yan, Zheng” Signed-off-by: Ilya Dryomov --- fs/ceph/addr.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 7e3fae334620..6cdf94459ac4 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -703,9 +703,6 @@ static void writepages_finish(struct ceph_osd_request *req) clear_bdi_congested(&fsc->backing_dev_info, BLK_RW_ASYNC); - if (rc < 0) - SetPageError(page); - ceph_put_snap_context(page_snap_context(page)); page->private = 0; ClearPagePrivate(page);