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NFS: Move nfs_probe_destination() into the generic client

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And rename it to nfs_probe_server(). I also change it to take the nfs_fh
as an argument so callers can choose what filehandle to probe.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Anna Schumaker 2021-10-14 13:55:05 -04:00 committed by Trond Myklebust
parent 01dde76e47
commit e5731131fb
3 changed files with 26 additions and 25 deletions
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24
fs/nfs/client.c
View File

@ -864,6 +864,30 @@ int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs
}
EXPORT_SYMBOL_GPL(nfs_probe_fsinfo);
/*
* Grab the destination's particulars, including lease expiry time.
*
* Returns zero if probe succeeded and retrieved FSID matches the FSID
* we have cached.
*/
int nfs_probe_server(struct nfs_server *server, struct nfs_fh *mntfh)
{
struct nfs_fattr *fattr;
int error;
fattr = nfs_alloc_fattr();
if (fattr == NULL)
return -ENOMEM;
/* Sanity: the probe won't work if the destination server
* does not recognize the migrated FH. */
error = nfs_probe_fsinfo(server, mntfh, fattr);
nfs_free_fattr(fattr);
return error;
}
EXPORT_SYMBOL_GPL(nfs_probe_server);
/*
* Copy useful information when duplicating a server record
*/

1
fs/nfs/internal.h
View File

@ -194,6 +194,7 @@ extern struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *);
int nfs_create_rpc_client(struct nfs_client *, const struct nfs_client_initdata *, rpc_authflavor_t);
struct nfs_client *nfs_get_client(const struct nfs_client_initdata *);
int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *, struct nfs_fattr *);
int nfs_probe_server(struct nfs_server *, struct nfs_fh *);
void nfs_server_insert_lists(struct nfs_server *);
void nfs_server_remove_lists(struct nfs_server *);
void nfs_init_timeout_values(struct rpc_timeout *to, int proto, int timeo, int retrans);

26
fs/nfs/nfs4client.c
View File

@ -1293,30 +1293,6 @@ error:
return ERR_PTR(error);
}
/*
* Grab the destination's particulars, including lease expiry time.
*
* Returns zero if probe succeeded and retrieved FSID matches the FSID
* we have cached.
*/
static int nfs_probe_destination(struct nfs_server *server)
{
struct inode *inode = d_inode(server->super->s_root);
struct nfs_fattr *fattr;
int error;
fattr = nfs_alloc_fattr();
if (fattr == NULL)
return -ENOMEM;
/* Sanity: the probe won't work if the destination server
* does not recognize the migrated FH. */
error = nfs_probe_fsinfo(server, NFS_FH(inode), fattr);
nfs_free_fattr(fattr);
return error;
}
/**
* nfs4_update_server - Move an nfs_server to a different nfs_client
*
@ -1377,5 +1353,5 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname,
server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);
nfs_server_insert_lists(server);
return nfs_probe_destination(server);
return nfs_probe_server(server, NFS_FH(d_inode(server->super->s_root)));
}