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Commit a9ed2e25 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv4: Handle NFS4ERR_GRACE when recovering an expired lease. 



If our lease expires, and the server reboots while we're recovering, we
need to be able to wait until the grace period is over.

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent c8b7ae3d

fs/nfs/nfs4proc.c

+19 −7
Original line number Diff line number Diff line
@@ -1488,7 +1488,7 @@ static int _nfs4_open_expired(struct nfs_open_context *ctx, struct nfs4_state *s 
	return ret;

}



static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)

static int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)

{

	struct nfs_server *server = NFS_SERVER(state->inode);

	struct nfs4_exception exception = { };
@@ -1496,10 +1496,16 @@ static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4 


	do {

		err = _nfs4_open_expired(ctx, state);

		if (err != -NFS4ERR_DELAY)

			break;

		switch (err) {

		default:

			goto out;

		case -NFS4ERR_GRACE:

		case -NFS4ERR_DELAY:

			nfs4_handle_exception(server, err, &exception);

			err = 0;

		}

	} while (exception.retry);

out:

	return err;

}
@@ -4049,10 +4055,16 @@ static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request 
		if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)

			return 0;

		err = _nfs4_do_setlk(state, F_SETLK, request, 0);

		if (err != -NFS4ERR_DELAY)

			break;

		switch (err) {

		default:

			goto out;

		case -NFS4ERR_GRACE:

		case -NFS4ERR_DELAY:

			nfs4_handle_exception(server, err, &exception);

			err = 0;

		}

	} while (exception.retry);

out:

	return err;

}