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| author | Chuck Lever <chuck.lever@oracle.com> | 2013-10-17 14:13:30 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-10-28 15:30:03 -0400 |
| commit | 44c9993384e9311cd56acf6ead3baffab616ae50 (patch) | |
| tree | 3e7db3df6e09d1c4f06d107ced2b1b910852f645 /fs/nfs/nfs4_fs.h | |
| parent | 352297b917d8a3e61a778ffb0f0195ce8550d7f5 (diff) | |
| download | linux-44c9993384e9311cd56acf6ead3baffab616ae50.tar.gz linux-44c9993384e9311cd56acf6ead3baffab616ae50.tar.bz2 linux-44c9993384e9311cd56acf6ead3baffab616ae50.zip | |
NFS: Add method to detect whether an FSID is still on the server
Introduce a mechanism for probing a server to determine if an FSID
is present or absent.
The on-the-wire compound is different between minor version 0 and 1.
Minor version 0 appends a RENEW operation to identify which client
ID is probing. Minor version 1 has a SEQUENCE operation in the
compound which effectively carries the same information.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4_fs.h')
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 94e783ffcf08..2f0f8c216441 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -208,6 +208,7 @@ struct nfs4_state_maintenance_ops { struct nfs4_mig_recovery_ops { int (*get_locations)(struct inode *, struct nfs4_fs_locations *, struct page *, struct rpc_cred *); + int (*fsid_present)(struct inode *, struct rpc_cred *); }; extern const struct dentry_operations nfs4_dentry_operations; @@ -242,6 +243,7 @@ extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struc struct nfs4_fs_locations *, struct page *); extern int nfs4_proc_get_locations(struct inode *, struct nfs4_fs_locations *, struct page *page, struct rpc_cred *); +extern int nfs4_proc_fsid_present(struct inode *, struct rpc_cred *); extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, struct qstr *, struct nfs_fh *, struct nfs_fattr *); extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *); |