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Commit c0e6bee4 authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

nfsd4: delay setting current_fh in open 



This is basically a no-op, to simplify a following patch.

Acked-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent e873088f

fs/nfsd/nfs4proc.c

+20 −17
Original line number Diff line number Diff line
@@ -230,17 +230,16 @@ static void nfsd4_set_open_owner_reply_cache(struct nfsd4_compound_state *cstate 
}



static __be32

do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open)

do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_open *open, struct svc_fh **resfh)

{

	struct svc_fh *current_fh = &cstate->current_fh;

	struct svc_fh *resfh;

	int accmode;

	__be32 status;



	resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);

	if (!resfh)

	*resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);

	if (!*resfh)

		return nfserr_jukebox;

	fh_init(resfh, NFS4_FHSIZE);

	fh_init(*resfh, NFS4_FHSIZE);

	open->op_truncate = 0;



	if (open->op_create) {
@@ -265,12 +264,12 @@ do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, stru 
		 */

		status = do_nfsd_create(rqstp, current_fh, open->op_fname.data,

					open->op_fname.len, &open->op_iattr,

					resfh, open->op_createmode,

					*resfh, open->op_createmode,

					(u32 *)open->op_verf.data,

					&open->op_truncate, &open->op_created);



		if (!status && open->op_label.len)

			nfsd4_security_inode_setsecctx(resfh, &open->op_label, open->op_bmval);

			nfsd4_security_inode_setsecctx(*resfh, &open->op_label, open->op_bmval);



		/*

		 * Following rfc 3530 14.2.16, use the returned bitmask
@@ -282,29 +281,26 @@ do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, stru 
							FATTR4_WORD1_TIME_MODIFY);

	} else {

		status = nfsd_lookup(rqstp, current_fh,

				     open->op_fname.data, open->op_fname.len, resfh);

				     open->op_fname.data, open->op_fname.len, *resfh);

		fh_unlock(current_fh);

	}

	if (status)

		goto out;

	status = nfsd_check_obj_isreg(resfh);

	status = nfsd_check_obj_isreg(*resfh);

	if (status)

		goto out;



	if (is_create_with_attrs(open) && open->op_acl != NULL)

		do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval);

		do_set_nfs4_acl(rqstp, *resfh, open->op_acl, open->op_bmval);



	nfsd4_set_open_owner_reply_cache(cstate, open, resfh);

	nfsd4_set_open_owner_reply_cache(cstate, open, *resfh);

	accmode = NFSD_MAY_NOP;

	if (open->op_created ||

			open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR)

		accmode |= NFSD_MAY_OWNER_OVERRIDE;

	status = do_open_permission(rqstp, resfh, open, accmode);

	status = do_open_permission(rqstp, *resfh, open, accmode);

	set_change_info(&open->op_cinfo, current_fh);

	fh_dup2(current_fh, resfh);

out:

	fh_put(resfh);

	kfree(resfh);

	return status;

}
@@ -357,6 +353,7 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
	   struct nfsd4_open *open)

{

	__be32 status;

	struct svc_fh *resfh = NULL;

	struct nfsd4_compoundres *resp;

	struct net *net = SVC_NET(rqstp);

	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
@@ -423,7 +420,7 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
	switch (open->op_claim_type) {

		case NFS4_OPEN_CLAIM_DELEGATE_CUR:

		case NFS4_OPEN_CLAIM_NULL:

			status = do_open_lookup(rqstp, cstate, open);

			status = do_open_lookup(rqstp, cstate, open, &resfh);

			if (status)

				goto out;

			break;
@@ -439,6 +436,7 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
			status = do_open_fhandle(rqstp, cstate, open);

			if (status)

				goto out;

			resfh = &cstate->current_fh;

			break;

		case NFS4_OPEN_CLAIM_DELEG_PREV_FH:

             	case NFS4_OPEN_CLAIM_DELEGATE_PREV:
@@ -458,9 +456,14 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, 
	 * successful, it (1) truncates the file if open->op_truncate was

	 * set, (2) sets open->op_stateid, (3) sets open->op_delegation.

	 */

	status = nfsd4_process_open2(rqstp, &cstate->current_fh, open);

	status = nfsd4_process_open2(rqstp, resfh, open);

	WARN_ON(status && open->op_created);

out:

	if (resfh && resfh != &cstate->current_fh) {

		fh_dup2(&cstate->current_fh, resfh);

		fh_put(resfh);

		kfree(resfh);

	}

	nfsd4_cleanup_open_state(open, status);

	if (open->op_openowner && !nfsd4_has_session(cstate))

		cstate->replay_owner = &open->op_openowner->oo_owner;