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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: Casey Bodley <cbodley@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2011-08-31 15:47:21 -04:00
parent 81b829655d
commit 73997dc418
1 changed files with 4 additions and 4 deletions
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8
fs/nfsd/nfs4state.c
View File

@ -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;