diff options
| author | Yan, Zheng <zyan@redhat.com> | 2019-07-25 20:16:44 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-09-16 12:06:24 +0200 |
| commit | d468e729b74eafdfc8306ca8f77e1f26478d67da (patch) | |
| tree | b277dbf5c2468bc199014d8ff665563510539f43 /fs/ceph/super.h | |
| parent | 5e3ded1bb642f2d7a6ded6deeafb155d5b5312f2 (diff) | |
ceph: add helper function that forcibly reconnects to ceph cluster.
It closes mds sessions, drop all caps and invalidates page caches,
then use new entity address to reconnect to the cluster.
After reconnect, all dirty data/metadata are dropped, file locks
get lost sliently. Open files continue to work because client will
try renewing caps on later read/write.
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 1452f62445c3..7af7f2ba8da5 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -846,7 +846,8 @@ static inline int default_congestion_kb(void) } - +/* super.c */ +extern int ceph_force_reconnect(struct super_block *sb); /* snap.c */ struct ceph_snap_realm *ceph_lookup_snap_realm(struct ceph_mds_client *mdsc, u64 ino); |