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nfsd4: cleanup seqid op stateowner usage 

Now that the replay owner is in the cstate we can remove it from a lot
of other individual operations and further simplify
nfs4_preprocess_seqid_op().

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2011-08-24 12:45:03 -04:00
parent f3e4223751
commit 9072d5c66b
3 changed files with 24 additions and 45 deletions
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57
fs/nfsd/nfs4state.c
View File

@ -3388,7 +3388,6 @@ setlkflg (int type)
static __be32
nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
stateid_t *stateid, int flags,
struct nfs4_stateowner **sopp,
struct nfs4_stateid **stpp)
{
struct nfs4_stateid *stp;
@ -3400,7 +3399,6 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
seqid, STATEID_VAL(stateid));
*stpp = NULL;
*sopp = NULL;
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) {
dprintk("NFSD: preprocess_seqid_op: magic stateid!\n");
@ -3431,7 +3429,7 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
}
*stpp = stp;
*sopp = sop = stp->st_stateowner;
sop = stp->st_stateowner;
nfs4_get_stateowner(sop);
cstate->replay_owner = sop;
@ -3467,7 +3465,6 @@ check_replay:
}
dprintk("NFSD: preprocess_seqid_op: bad seqid (expected %d, got %d)\n",
sop->so_seqid, seqid);
*sopp = NULL;
return nfserr_bad_seqid;
}
@ -3489,13 +3486,13 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
if ((status = nfs4_preprocess_seqid_op(cstate,
status = nfs4_preprocess_seqid_op(cstate,
oc->oc_seqid, &oc->oc_req_stateid,
CONFIRM | OPEN_STATE,
&oc->oc_stateowner, &stp)))
CONFIRM | OPEN_STATE, &stp);
if (status)
goto out;
sop = oc->oc_stateowner;
sop = stp->st_stateowner;
sop->so_confirmed = 1;
update_stateid(&stp->st_stateid);
memcpy(&oc->oc_resp_stateid, &stp->st_stateid, sizeof(stateid_t));
@ -3547,11 +3544,9 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
return nfserr_inval;
nfs4_lock_state();
if ((status = nfs4_preprocess_seqid_op(cstate,
od->od_seqid,
&od->od_stateid,
OPEN_STATE,
&od->od_stateowner, &stp)))
status = nfs4_preprocess_seqid_op(cstate, od->od_seqid,
&od->od_stateid, OPEN_STATE, &stp);
if (status)
goto out;
status = nfserr_inval;
@ -3586,6 +3581,7 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
{
__be32 status;
struct nfs4_stateid *stp;
struct nfs4_stateowner *so;
dprintk("NFSD: nfsd4_close on file %.*s\n",
(int)cstate->current_fh.fh_dentry->d_name.len,
@ -3593,12 +3589,12 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
/* check close_lru for replay */
if ((status = nfs4_preprocess_seqid_op(cstate,
close->cl_seqid,
status = nfs4_preprocess_seqid_op(cstate, close->cl_seqid,
&close->cl_stateid,
OPEN_STATE | CLOSE_STATE,
&close->cl_stateowner, &stp)))
OPEN_STATE | CLOSE_STATE, &stp);
if (status)
goto out;
so = stp->st_stateowner;
status = nfs_ok;
update_stateid(&stp->st_stateid);
memcpy(&close->cl_stateid, &stp->st_stateid, sizeof(stateid_t));
@ -3610,8 +3606,8 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
* released by the laundromat service after the lease period
* to enable us to handle CLOSE replay
*/
if (list_empty(&close->cl_stateowner->so_stateids))
move_to_close_lru(close->cl_stateowner);
if (list_empty(&so->so_stateids))
move_to_close_lru(so);
out:
nfs4_unlock_state();
return status;
@ -3962,12 +3958,11 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfs4_preprocess_seqid_op(cstate,
lock->lk_new_open_seqid,
&lock->lk_new_open_stateid,
OPEN_STATE,
&lock->lk_replay_owner, &open_stp);
OPEN_STATE, &open_stp);
if (status)
goto out;
status = nfserr_bad_stateid;
open_sop = lock->lk_replay_owner;
open_sop = open_stp->st_stateowner;
if (!nfsd4_has_session(cstate) &&
!same_clid(&open_sop->so_client->cl_clientid,
&lock->v.new.clientid))
@ -3993,14 +3988,13 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfs4_preprocess_seqid_op(cstate,
lock->lk_old_lock_seqid,
&lock->lk_old_lock_stateid,
LOCK_STATE,
&lock->lk_replay_owner, &lock_stp);
LOCK_STATE, &lock_stp);
if (status)
goto out;
lock_sop = lock->lk_replay_owner;
lock_sop = lock_stp->st_stateowner;
fp = lock_stp->st_file;
}
/* lock->lk_replay_owner and lock_stp have been created or found */
/* lock_sop and lock_stp have been created or found */
lkflg = setlkflg(lock->lk_type);
status = nfs4_check_openmode(lock_stp, lkflg);
@ -4191,13 +4185,10 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
if ((status = nfs4_preprocess_seqid_op(cstate,
locku->lu_seqid,
&locku->lu_stateid,
LOCK_STATE,
&locku->lu_stateowner, &stp)))
status = nfs4_preprocess_seqid_op(cstate, locku->lu_seqid,
&locku->lu_stateid, LOCK_STATE, &stp);
if (status)
goto out;
filp = find_any_file(stp->st_file);
if (!filp) {
status = nfserr_lock_range;
@ -4206,7 +4197,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
BUG_ON(!filp);
locks_init_lock(&file_lock);
file_lock.fl_type = F_UNLCK;
file_lock.fl_owner = (fl_owner_t) locku->lu_stateowner;
file_lock.fl_owner = (fl_owner_t) stp->st_stateowner;
file_lock.fl_pid = current->tgid;
file_lock.fl_file = filp;
file_lock.fl_flags = FL_POSIX;

5
fs/nfsd/nfs4xdr.c
View File

@ -456,7 +456,6 @@ nfsd4_decode_close(struct nfsd4_compoundargs *argp, struct nfsd4_close *close)
{
DECODE_HEAD;
close->cl_stateowner = NULL;
READ_BUF(4);
READ32(close->cl_seqid);
return nfsd4_decode_stateid(argp, &close->cl_stateid);
@ -551,7 +550,6 @@ nfsd4_decode_lock(struct nfsd4_compoundargs *argp, struct nfsd4_lock *lock)
{
DECODE_HEAD;
lock->lk_replay_owner = NULL;
/*
* type, reclaim(boolean), offset, length, new_lock_owner(boolean)
*/
@ -611,7 +609,6 @@ nfsd4_decode_locku(struct nfsd4_compoundargs *argp, struct nfsd4_locku *locku)
{
DECODE_HEAD;
locku->lu_stateowner = NULL;
READ_BUF(8);
READ32(locku->lu_type);
if ((locku->lu_type < NFS4_READ_LT) || (locku->lu_type > NFS4_WRITEW_LT))
@ -739,7 +736,6 @@ nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_open_con
{
DECODE_HEAD;
open_conf->oc_stateowner = NULL;
status = nfsd4_decode_stateid(argp, &open_conf->oc_req_stateid);
if (status)
return status;
@ -754,7 +750,6 @@ nfsd4_decode_open_downgrade(struct nfsd4_compoundargs *argp, struct nfsd4_open_d
{
DECODE_HEAD;
open_down->od_stateowner = NULL;
status = nfsd4_decode_stateid(argp, &open_down->od_stateid);
if (status)
return status;

7
fs/nfsd/xdr4.h
View File

@ -81,7 +81,6 @@ struct nfsd4_access {
struct nfsd4_close {
u32 cl_seqid; /* request */
stateid_t cl_stateid; /* request+response */
struct nfs4_stateowner * cl_stateowner; /* response */
};
struct nfsd4_commit {
@ -165,9 +164,6 @@ struct nfsd4_lock {
} ok;
struct nfsd4_lock_denied denied;
} u;
/* The lk_replay_owner is the open owner in the open_to_lock_owner
* case and the lock owner otherwise: */
struct nfs4_stateowner *lk_replay_owner;
};
#define lk_new_open_seqid v.new.open_seqid
#define lk_new_open_stateid v.new.open_stateid
@ -199,7 +195,6 @@ struct nfsd4_locku {
stateid_t lu_stateid;
u64 lu_offset;
u64 lu_length;
struct nfs4_stateowner *lu_stateowner;
};
@ -243,7 +238,6 @@ struct nfsd4_open_confirm {
stateid_t oc_req_stateid /* request */;
u32 oc_seqid /* request */;
stateid_t oc_resp_stateid /* response */;
struct nfs4_stateowner * oc_stateowner; /* response */
};
struct nfsd4_open_downgrade {
@ -251,7 +245,6 @@ struct nfsd4_open_downgrade {
u32 od_seqid;
u32 od_share_access;
u32 od_share_deny;
struct nfs4_stateowner *od_stateowner;
};