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nfsd: use service net instead of hard-coded init_net 

This patch replaces init_net by SVC_NET(), where possible and also passes
proper context to nested functions where required.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Stanislav Kinsbursky 2012-11-14 18:22:07 +03:00 committed by J. Bruce Fields
parent 73758fed71
commit 3320fef19b
4 changed files with 49 additions and 31 deletions
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13
fs/nfsd/nfs4proc.c
View File

@ -40,6 +40,7 @@
#include "xdr4.h" #include "xdr4.h"
#include "vfs.h" #include "vfs.h"
#include "current_stateid.h" #include "current_stateid.h"
#include "netns.h"
#define NFSDDBG_FACILITY NFSDDBG_PROC #define NFSDDBG_FACILITY NFSDDBG_PROC
@ -304,6 +305,8 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
{ {
__be32 status; __be32 status;
struct nfsd4_compoundres *resp; struct nfsd4_compoundres *resp;
struct net *net = SVC_NET(rqstp);
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n", dprintk("NFSD: nfsd4_open filename %.*s op_openowner %p\n",
(int)open->op_fname.len, open->op_fname.data, (int)open->op_fname.len, open->op_fname.data,
@ -331,7 +334,7 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
/* check seqid for replay. set nfs4_owner */ /* check seqid for replay. set nfs4_owner */
resp = rqstp->rq_resp; resp = rqstp->rq_resp;
status = nfsd4_process_open1(&resp->cstate, open); status = nfsd4_process_open1(&resp->cstate, open, nn);
if (status == nfserr_replay_me) { if (status == nfserr_replay_me) {
struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay; struct nfs4_replay *rp = &open->op_openowner->oo_owner.so_replay;
fh_put(&cstate->current_fh); fh_put(&cstate->current_fh);
@ -354,10 +357,10 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
/* Openowner is now set, so sequence id will get bumped. Now we need /* Openowner is now set, so sequence id will get bumped. Now we need
* these checks before we do any creates: */ * these checks before we do any creates: */
status = nfserr_grace; status = nfserr_grace;
if (locks_in_grace(SVC_NET(rqstp)) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) if (locks_in_grace(net) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
goto out; goto out;
status = nfserr_no_grace; status = nfserr_no_grace;
if (!locks_in_grace(SVC_NET(rqstp)) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) if (!locks_in_grace(net) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
goto out; goto out;
switch (open->op_claim_type) { switch (open->op_claim_type) {
@ -370,7 +373,9 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
break; break;
case NFS4_OPEN_CLAIM_PREVIOUS: case NFS4_OPEN_CLAIM_PREVIOUS:
open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED; open->op_openowner->oo_flags |= NFS4_OO_CONFIRMED;
status = nfs4_check_open_reclaim(&open->op_clientid, cstate->minorversion); status = nfs4_check_open_reclaim(&open->op_clientid,
cstate->minorversion,
nn);
if (status) if (status)
goto out; goto out;
case NFS4_OPEN_CLAIM_FH: case NFS4_OPEN_CLAIM_FH:

61
fs/nfsd/nfs4state.c
View File

@ -2620,14 +2620,13 @@ static __be32 nfsd4_check_seqid(struct nfsd4_compound_state *cstate, struct nfs4
__be32 __be32
nfsd4_process_open1(struct nfsd4_compound_state *cstate, nfsd4_process_open1(struct nfsd4_compound_state *cstate,
struct nfsd4_open *open) struct nfsd4_open *open, struct nfsd_net *nn)
{ {
clientid_t *clientid = &open->op_clientid; clientid_t *clientid = &open->op_clientid;
struct nfs4_client *clp = NULL; struct nfs4_client *clp = NULL;
unsigned int strhashval; unsigned int strhashval;
struct nfs4_openowner *oo = NULL; struct nfs4_openowner *oo = NULL;
__be32 status; __be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
if (STALE_CLIENTID(&open->op_clientid, nn)) if (STALE_CLIENTID(&open->op_clientid, nn))
return nfserr_stale_clientid; return nfserr_stale_clientid;
@ -3408,10 +3407,11 @@ static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
return nfs_ok; return nfs_ok;
} }
static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s, bool sessions) static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask,
struct nfs4_stid **s, bool sessions,
struct nfsd_net *nn)
{ {
struct nfs4_client *cl; struct nfs4_client *cl;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
return nfserr_bad_stateid; return nfserr_bad_stateid;
@ -3439,6 +3439,7 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
struct nfs4_delegation *dp = NULL; struct nfs4_delegation *dp = NULL;
struct svc_fh *current_fh = &cstate->current_fh; struct svc_fh *current_fh = &cstate->current_fh;
struct inode *ino = current_fh->fh_dentry->d_inode; struct inode *ino = current_fh->fh_dentry->d_inode;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
__be32 status; __be32 status;
if (filpp) if (filpp)
@ -3450,7 +3451,8 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
return check_special_stateids(net, current_fh, stateid, flags); return check_special_stateids(net, current_fh, stateid, flags);
status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID, &s, cstate->minorversion); status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID,
&s, cstate->minorversion, nn);
if (status) if (status)
return status; return status;
status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate)); status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate));
@ -3591,7 +3593,8 @@ static __be32 nfs4_seqid_op_checks(struct nfsd4_compound_state *cstate, stateid_
static __be32 static __be32
nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid, nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
stateid_t *stateid, char typemask, stateid_t *stateid, char typemask,
struct nfs4_ol_stateid **stpp) struct nfs4_ol_stateid **stpp,
struct nfsd_net *nn)
{ {
__be32 status; __be32 status;
struct nfs4_stid *s; struct nfs4_stid *s;
@ -3600,7 +3603,8 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
seqid, STATEID_VAL(stateid)); seqid, STATEID_VAL(stateid));
*stpp = NULL; *stpp = NULL;
status = nfsd4_lookup_stateid(stateid, typemask, &s, cstate->minorversion); status = nfsd4_lookup_stateid(stateid, typemask, &s,
cstate->minorversion, nn);
if (status) if (status)
return status; return status;
*stpp = openlockstateid(s); *stpp = openlockstateid(s);
@ -3609,13 +3613,14 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
return nfs4_seqid_op_checks(cstate, stateid, seqid, *stpp); return nfs4_seqid_op_checks(cstate, stateid, seqid, *stpp);
} }
static __be32 nfs4_preprocess_confirmed_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid, stateid_t *stateid, struct nfs4_ol_stateid **stpp) static __be32 nfs4_preprocess_confirmed_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid,
stateid_t *stateid, struct nfs4_ol_stateid **stpp, struct nfsd_net *nn)
{ {
__be32 status; __be32 status;
struct nfs4_openowner *oo; struct nfs4_openowner *oo;
status = nfs4_preprocess_seqid_op(cstate, seqid, stateid, status = nfs4_preprocess_seqid_op(cstate, seqid, stateid,
NFS4_OPEN_STID, stpp); NFS4_OPEN_STID, stpp, nn);
if (status) if (status)
return status; return status;
oo = openowner((*stpp)->st_stateowner); oo = openowner((*stpp)->st_stateowner);
@ -3631,6 +3636,7 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
__be32 status; __be32 status;
struct nfs4_openowner *oo; struct nfs4_openowner *oo;
struct nfs4_ol_stateid *stp; struct nfs4_ol_stateid *stp;
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
dprintk("NFSD: nfsd4_open_confirm on file %.*s\n", dprintk("NFSD: nfsd4_open_confirm on file %.*s\n",
(int)cstate->current_fh.fh_dentry->d_name.len, (int)cstate->current_fh.fh_dentry->d_name.len,
@ -3644,7 +3650,7 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfs4_preprocess_seqid_op(cstate, status = nfs4_preprocess_seqid_op(cstate,
oc->oc_seqid, &oc->oc_req_stateid, oc->oc_seqid, &oc->oc_req_stateid,
NFS4_OPEN_STID, &stp); NFS4_OPEN_STID, &stp, nn);
if (status) if (status)
goto out; goto out;
oo = openowner(stp->st_stateowner); oo = openowner(stp->st_stateowner);
@ -3708,6 +3714,7 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
{ {
__be32 status; __be32 status;
struct nfs4_ol_stateid *stp; struct nfs4_ol_stateid *stp;
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
dprintk("NFSD: nfsd4_open_downgrade on file %.*s\n", dprintk("NFSD: nfsd4_open_downgrade on file %.*s\n",
(int)cstate->current_fh.fh_dentry->d_name.len, (int)cstate->current_fh.fh_dentry->d_name.len,
@ -3720,7 +3727,7 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
nfs4_lock_state(); nfs4_lock_state();
status = nfs4_preprocess_confirmed_seqid_op(cstate, od->od_seqid, status = nfs4_preprocess_confirmed_seqid_op(cstate, od->od_seqid,
&od->od_stateid, &stp); &od->od_stateid, &stp, nn);
if (status) if (status)
goto out; goto out;
status = nfserr_inval; status = nfserr_inval;
@ -3783,6 +3790,8 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
__be32 status; __be32 status;
struct nfs4_openowner *oo; struct nfs4_openowner *oo;
struct nfs4_ol_stateid *stp; struct nfs4_ol_stateid *stp;
struct net *net = SVC_NET(rqstp);
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
dprintk("NFSD: nfsd4_close on file %.*s\n", dprintk("NFSD: nfsd4_close on file %.*s\n",
(int)cstate->current_fh.fh_dentry->d_name.len, (int)cstate->current_fh.fh_dentry->d_name.len,
@ -3792,7 +3801,7 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfs4_preprocess_seqid_op(cstate, close->cl_seqid, status = nfs4_preprocess_seqid_op(cstate, close->cl_seqid,
&close->cl_stateid, &close->cl_stateid,
NFS4_OPEN_STID|NFS4_CLOSED_STID, NFS4_OPEN_STID|NFS4_CLOSED_STID,
&stp); &stp, nn);
if (status) if (status)
goto out; goto out;
oo = openowner(stp->st_stateowner); oo = openowner(stp->st_stateowner);
@ -3831,12 +3840,14 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
stateid_t *stateid = &dr->dr_stateid; stateid_t *stateid = &dr->dr_stateid;
struct nfs4_stid *s; struct nfs4_stid *s;
__be32 status; __be32 status;
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0))) if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0)))
return status; return status;
nfs4_lock_state(); nfs4_lock_state();
status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID, &s, cstate->minorversion); status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID, &s,
cstate->minorversion, nn);
if (status) if (status)
goto out; goto out;
dp = delegstateid(s); dp = delegstateid(s);
@ -4085,7 +4096,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
bool new_state = false; bool new_state = false;
int lkflg; int lkflg;
int err; int err;
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); struct net *net = SVC_NET(rqstp);
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
dprintk("NFSD: nfsd4_lock: start=%Ld length=%Ld\n", dprintk("NFSD: nfsd4_lock: start=%Ld length=%Ld\n",
(long long) lock->lk_offset, (long long) lock->lk_offset,
@ -4119,7 +4131,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfs4_preprocess_confirmed_seqid_op(cstate, status = nfs4_preprocess_confirmed_seqid_op(cstate,
lock->lk_new_open_seqid, lock->lk_new_open_seqid,
&lock->lk_new_open_stateid, &lock->lk_new_open_stateid,
&open_stp); &open_stp, nn);
if (status) if (status)
goto out; goto out;
open_sop = openowner(open_stp->st_stateowner); open_sop = openowner(open_stp->st_stateowner);
@ -4133,7 +4145,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = nfs4_preprocess_seqid_op(cstate, status = nfs4_preprocess_seqid_op(cstate,
lock->lk_old_lock_seqid, lock->lk_old_lock_seqid,
&lock->lk_old_lock_stateid, &lock->lk_old_lock_stateid,
NFS4_LOCK_STID, &lock_stp); NFS4_LOCK_STID, &lock_stp, nn);
if (status) if (status)
goto out; goto out;
lock_sop = lockowner(lock_stp->st_stateowner); lock_sop = lockowner(lock_stp->st_stateowner);
@ -4144,10 +4156,10 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out; goto out;
status = nfserr_grace; status = nfserr_grace;
if (locks_in_grace(SVC_NET(rqstp)) && !lock->lk_reclaim) if (locks_in_grace(net) && !lock->lk_reclaim)
goto out; goto out;
status = nfserr_no_grace; status = nfserr_no_grace;
if (!locks_in_grace(SVC_NET(rqstp)) && lock->lk_reclaim) if (!locks_in_grace(net) && lock->lk_reclaim)
goto out; goto out;
file_lock = locks_alloc_lock(); file_lock = locks_alloc_lock();
@ -4333,6 +4345,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct file_lock *file_lock = NULL; struct file_lock *file_lock = NULL;
__be32 status; __be32 status;
int err; int err;
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
dprintk("NFSD: nfsd4_locku: start=%Ld length=%Ld\n", dprintk("NFSD: nfsd4_locku: start=%Ld length=%Ld\n",
(long long) locku->lu_offset, (long long) locku->lu_offset,
@ -4344,7 +4357,8 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state(); nfs4_lock_state();
status = nfs4_preprocess_seqid_op(cstate, locku->lu_seqid, status = nfs4_preprocess_seqid_op(cstate, locku->lu_seqid,
&locku->lu_stateid, NFS4_LOCK_STID, &stp); &locku->lu_stateid, NFS4_LOCK_STID,
&stp, nn);
if (status) if (status)
goto out; goto out;
filp = find_any_file(stp->st_file); filp = find_any_file(stp->st_file);
@ -4564,10 +4578,9 @@ nfsd4_find_reclaim_client(const char *recdir, struct nfsd_net *nn)
* Called from OPEN. Look for clientid in reclaim list. * Called from OPEN. Look for clientid in reclaim list.
*/ */
__be32 __be32
nfs4_check_open_reclaim(clientid_t *clid, bool sessions) nfs4_check_open_reclaim(clientid_t *clid, bool sessions, struct nfsd_net *nn)
{ {
struct nfs4_client *clp; struct nfs4_client *clp;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
/* find clientid in conf_id_hashtbl */ /* find clientid in conf_id_hashtbl */
clp = find_confirmed_client(clid, sessions, nn); clp = find_confirmed_client(clid, sessions, nn);
@ -4583,7 +4596,7 @@ void nfsd_forget_clients(u64 num)
{ {
struct nfs4_client *clp, *next; struct nfs4_client *clp, *next;
int count = 0; int count = 0;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); struct nfsd_net *nn = net_generic(current->nsproxy->net_ns, nfsd_net_id);
nfs4_lock_state(); nfs4_lock_state();
list_for_each_entry_safe(clp, next, &nn->client_lru, cl_lru) { list_for_each_entry_safe(clp, next, &nn->client_lru, cl_lru) {
@ -4897,8 +4910,8 @@ __nfs4_state_shutdown(struct net *net)
unhash_delegation(dp); unhash_delegation(dp);
} }
nfsd4_client_tracking_exit(&init_net); nfsd4_client_tracking_exit(net);
put_net(&init_net); put_net(net);
} }
void void

2
fs/nfsd/state.h
View File

@ -470,7 +470,7 @@ void nfs4_remove_reclaim_record(struct nfs4_client_reclaim *, struct nfsd_net *)
extern void nfs4_release_reclaim(struct nfsd_net *); extern void nfs4_release_reclaim(struct nfsd_net *);
extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(const char *recdir, extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(const char *recdir,
struct nfsd_net *nn); struct nfsd_net *nn);
extern __be32 nfs4_check_open_reclaim(clientid_t *clid, bool sessions); extern __be32 nfs4_check_open_reclaim(clientid_t *clid, bool sessions, struct nfsd_net *nn);
extern void nfs4_free_openowner(struct nfs4_openowner *); extern void nfs4_free_openowner(struct nfs4_openowner *);
extern void nfs4_free_lockowner(struct nfs4_lockowner *); extern void nfs4_free_lockowner(struct nfs4_lockowner *);
extern int set_callback_cred(void); extern int set_callback_cred(void);

2
fs/nfsd/xdr4.h
View File

@ -581,7 +581,7 @@ extern __be32 nfsd4_destroy_session(struct svc_rqst *,
extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *); extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *); __be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *, extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
struct nfsd4_open *open); struct nfsd4_open *open, struct nfsd_net *nn);
extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp, extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
struct svc_fh *current_fh, struct nfsd4_open *open); struct svc_fh *current_fh, struct nfsd4_open *open);
extern void nfsd4_cleanup_open_state(struct nfsd4_open *open, __be32 status); extern void nfsd4_cleanup_open_state(struct nfsd4_open *open, __be32 status);