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Commit 008f55d0 authored by Benny Halevy's avatar Benny Halevy
Browse files

nfs41: recover lease in _nfs4_lookup_root 



This creates the nfsv4.1 session on mount.

Signed-off-by: default avatarBenny Halevy <bhalevy@panasas.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent b4b82607

fs/nfs/client.c

+16 −0
Original line number Diff line number Diff line
@@ -527,6 +527,22 @@ void nfs_mark_client_ready(struct nfs_client *clp, int state) 
	wake_up_all(&nfs_client_active_wq);

}



/*

 * With sessions, the client is not marked ready until after a

 * successful EXCHANGE_ID and CREATE_SESSION.

 *

 * Map errors cl_cons_state errors to EPROTONOSUPPORT to indicate

 * other versions of NFS can be tried.

 */

int nfs4_check_client_ready(struct nfs_client *clp)

{

	if (!nfs4_has_session(clp))

		return 0;

	if (clp->cl_cons_state < NFS_CS_READY)

		return -EPROTONOSUPPORT;

	return 0;

}



/*

 * Initialise the timeout values for a connection

 */

fs/nfs/internal.h

+1 −0
Original line number Diff line number Diff line
@@ -114,6 +114,7 @@ extern struct nfs_server *nfs_clone_server(struct nfs_server *, 
					   struct nfs_fh *,

					   struct nfs_fattr *);

extern void nfs_mark_client_ready(struct nfs_client *clp, int state);

extern int nfs4_check_client_ready(struct nfs_client *clp);

#ifdef CONFIG_PROC_FS

extern int __init nfs_fs_proc_init(void);

extern void nfs_fs_proc_exit(void);

fs/nfs/nfs4proc.c

+8 −1
Original line number Diff line number Diff line
@@ -2024,8 +2024,15 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, 
		.rpc_argp = &args,

		.rpc_resp = &res,

	};

	int status;



	nfs_fattr_init(info->fattr);

	return nfs4_call_sync(server, &msg, &args, &res, 0);

	status = nfs4_recover_expired_lease(server);

	if (!status)

		status = nfs4_check_client_ready(server->nfs_client);

	if (!status)

		status = nfs4_call_sync(server, &msg, &args, &res, 0);

	return status;

}



static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,