tree 41b4e0cf38951bf49372e1272a08c8264bf3d943
parent 64291f7db5bd8150a74ad2036f1037e6a0428df2
author Yan, Zheng <zyan@redhat.com> 1435739266 +0800
committer Ilya Dryomov <idryomov@gmail.com> 1441743268 +0300

ceph: EIO all operations after forced umount

This patch makes try_get_cap_refs() and __do_request() check
if the file system was forced umount, and return -EIO if it was.
This patch also adds a helper function to drops dirty caps and
wakes up blocking operation.

Signed-off-by: Yan, Zheng <zyan@redhat.com>