ceph: fix -EOLDSNAPC handling

Need to drop cap reference before retry. Besides, it's better to
redo file write checks for each retry because we re-lock inode.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng 2017-08-14 10:50:50 +08:00 • committed by Ilya Dryomov
commit a5cd74ad38