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nfsd: declare v4.1+ openowners confirmed on creation 

There's no need to confirm an openowner in v4.1 and above, so we can
go ahead and set NFS4_OO_CONFIRMED when we create openowners in
those versions. This will also be necessary when we remove the
client_mutex, as it'll be possible for two concurrent opens to race
in versions >4.0.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Jeff Layton 2014-06-30 11:48:36 -04:00 committed by J. Bruce Fields
parent b607664ee7
commit db24b3b4b2
1 changed files with 10 additions and 6 deletions
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16
fs/nfsd/nfs4state.c
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@ -2719,7 +2719,10 @@ static void hash_openowner(struct nfs4_openowner *oo, struct nfs4_client *clp, u
}
static struct nfs4_openowner *
alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp, struct nfsd4_open *open) {
alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp,
struct nfsd4_open *open,
struct nfsd4_compound_state *cstate)
{
struct nfs4_openowner *oo;
oo = alloc_stateowner(openowner_slab, &open->op_owner, clp);
@ -2728,6 +2731,8 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
oo->oo_owner.so_is_open_owner = 1;
oo->oo_owner.so_seqid = open->op_seqid;
oo->oo_flags = NFS4_OO_NEW;
if (nfsd4_has_session(cstate))
oo->oo_flags |= NFS4_OO_CONFIRMED;
oo->oo_time = 0;
oo->oo_last_closed_stid = NULL;
INIT_LIST_HEAD(&oo->oo_close_lru);
@ -2987,7 +2992,7 @@ nfsd4_process_open1(struct nfsd4_compound_state *cstate,
clp = oo->oo_owner.so_client;
goto alloc_stateid;
new_owner:
oo = alloc_init_open_stateowner(strhashval, clp, open);
oo = alloc_init_open_stateowner(strhashval, clp, open, cstate);
if (oo == NULL)
return nfserr_jukebox;
open->op_openowner = oo;
@ -3397,8 +3402,6 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
memcpy(&open->op_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
if (nfsd4_has_session(&resp->cstate)) {
open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
if (open->op_deleg_want & NFS4_SHARE_WANT_NO_DELEG) {
open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE_EXT;
open->op_why_no_deleg = WND4_NOT_WANTED;
@ -3792,8 +3795,9 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID,
&s, cstate->minorversion, nn);
status = nfsd4_lookup_stateid(stateid,
NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID,
&s, cstate->minorversion, nn);
if (status)
goto out;
status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate));