Commit 73997dc4 authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

nfsd4: make delegation stateid's seqid start at 1 



Thanks to Casey for reminding me that 5661 gives a special meaning to a
value of 0 in the stateid's seqid field, so all stateid's should start
out with si_generation 1.  We were doing that in the open and lock
cases for minorversion 1, but not for the delegation stateid, and not
for openstateid's with v4.0.

It doesn't *really* matter much for v4.0 or for delegation stateid's
(which never get the seqid field incremented), but we may as well do the
same for all of them.

Reported-by: default avatarCasey Bodley <cbodley@citi.umich.edu>
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 81b82965

fs/nfsd/nfs4state.c

+4 −4
Original line number Diff line number Diff line
@@ -250,7 +250,7 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f 
	dp->dl_stateid.si_boot = boot_time;

	dp->dl_stateid.si_stateownerid = current_delegid++;

	dp->dl_stateid.si_fileid = 0;

	dp->dl_stateid.si_generation = 0;

	dp->dl_stateid.si_generation = 1;

	fh_copy_shallow(&dp->dl_fh, &current_fh->fh_handle);

	dp->dl_time = 0;

	atomic_set(&dp->dl_count, 1);
@@ -2291,6 +2291,7 @@ init_stateid(struct nfs4_stateid *stp, struct nfs4_file *fp, struct nfsd4_open * 
	stp->st_stateid.si_boot = boot_time;

	stp->st_stateid.si_stateownerid = sop->so_id;

	stp->st_stateid.si_fileid = fp->fi_id;

	/* note will be incremented before first return to client: */

	stp->st_stateid.si_generation = 0;

	stp->st_access_bmap = 0;

	stp->st_deny_bmap = 0;
@@ -2894,7 +2895,6 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf 
		status = nfs4_upgrade_open(rqstp, fp, current_fh, stp, open);

		if (status)

			goto out;

		update_stateid(&stp->st_stateid);

	} else {

		status = nfs4_new_open(rqstp, &stp, fp, current_fh, open);

		if (status)
@@ -2905,9 +2905,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf 
			release_open_stateid(stp);

			goto out;

		}

		if (nfsd4_has_session(&resp->cstate))

			update_stateid(&stp->st_stateid);

	}

	update_stateid(&stp->st_stateid);

	memcpy(&open->op_stateid, &stp->st_stateid, sizeof(stateid_t));



	if (nfsd4_has_session(&resp->cstate))
@@ -3893,6 +3892,7 @@ alloc_init_lock_stateid(struct nfs4_stateowner *sop, struct nfs4_file *fp, struc 
	stp->st_stateid.si_boot = boot_time;

	stp->st_stateid.si_stateownerid = sop->so_id;

	stp->st_stateid.si_fileid = fp->fi_id;

	/* note will be incremented before first return to client: */

	stp->st_stateid.si_generation = 0;

	stp->st_access_bmap = 0;

	stp->st_deny_bmap = open_stp->st_deny_bmap;

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