xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ceph: add helper function that forcibly reconnects to ceph cluster.

Browse Source 
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>
This commit is contained in:
Yan, Zheng
2019-07-25 20:16:44 +08:00
committed by Ilya Dryomov
parent 5e3ded1bb6
commit d468e729b7
3 changed files with 39 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
fs/ceph/super.h
View File

@@ -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);