Commit 6fc1fe5e authored by Jeff Layton's avatar Jeff Layton Committed by Ilya Dryomov

Revert "ceph: SetPageError() for writeback pages if writepages fails"

This reverts commit b109eec6.

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: default avatarJeff Layton <jlayton@redhat.com>
Reviewed-by: default avatar"Yan, Zheng” <zyan@redhat.com>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent 92475f05
......@@ -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);
......
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