diff options
Diffstat (limited to 'fs/nfsd')
-rw-r--r-- | fs/nfsd/export.c | 10 | ||||
-rw-r--r-- | fs/nfsd/netns.h | 4 | ||||
-rw-r--r-- | fs/nfsd/nfs4callback.c | 1 | ||||
-rw-r--r-- | fs/nfsd/nfs4idmap.c | 4 | ||||
-rw-r--r-- | fs/nfsd/nfs4proc.c | 18 | ||||
-rw-r--r-- | fs/nfsd/nfs4state.c | 205 | ||||
-rw-r--r-- | fs/nfsd/nfs4xdr.c | 2 | ||||
-rw-r--r-- | fs/nfsd/nfsctl.c | 8 | ||||
-rw-r--r-- | fs/nfsd/nfsd.h | 13 | ||||
-rw-r--r-- | fs/nfsd/nfssvc.c | 24 | ||||
-rw-r--r-- | fs/nfsd/state.h | 5 | ||||
-rw-r--r-- | fs/nfsd/vfs.c | 24 |
12 files changed, 184 insertions, 134 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index ba233499b9a..a3946cf13fc 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -398,7 +398,7 @@ fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc) int migrated, i, err; /* listsize */ - err = get_int(mesg, &fsloc->locations_count); + err = get_uint(mesg, &fsloc->locations_count); if (err) return err; if (fsloc->locations_count > MAX_FS_LOCATIONS) @@ -456,7 +456,7 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp) return -EINVAL; for (f = exp->ex_flavors; f < exp->ex_flavors + listsize; f++) { - err = get_int(mesg, &f->pseudoflavor); + err = get_uint(mesg, &f->pseudoflavor); if (err) return err; /* @@ -465,7 +465,7 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp) * problem at export time instead of when a client fails * to authenticate. */ - err = get_int(mesg, &f->flags); + err = get_uint(mesg, &f->flags); if (err) return err; /* Only some flags are allowed to differ between flavors: */ @@ -929,7 +929,7 @@ struct svc_export * rqst_exp_get_by_name(struct svc_rqst *rqstp, struct path *path) { struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT); - struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id); + struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); struct cache_detail *cd = nn->svc_export_cache; if (rqstp->rq_client == NULL) @@ -960,7 +960,7 @@ struct svc_export * rqst_exp_find(struct svc_rqst *rqstp, int fsid_type, u32 *fsidv) { struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT); - struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id); + struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); struct cache_detail *cd = nn->svc_export_cache; if (rqstp->rq_client == NULL) diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 39365636b24..65c2431ea32 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -34,6 +34,10 @@ struct nfsd_net { struct cache_detail *idtoname_cache; struct cache_detail *nametoid_cache; + + struct lock_manager nfsd4_manager; + bool grace_ended; + time_t boot_time; }; extern int nfsd_net_id; diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index a5fd6b982f2..cbaf4f8bb7b 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -756,7 +756,6 @@ static void do_probe_callback(struct nfs4_client *clp) */ void nfsd4_probe_callback(struct nfs4_client *clp) { - /* XXX: atomicity? Also, should we be using cl_flags? */ clp->cl_cb_state = NFSD4_CB_UNKNOWN; set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_flags); do_probe_callback(clp); diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index dae36f1dee9..fdc91a6fc9c 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -546,7 +546,7 @@ idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen .type = type, }; int ret; - struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id); + struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); if (namelen + 1 > sizeof(key.name)) return nfserr_badowner; @@ -571,7 +571,7 @@ idmap_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name) .type = type, }; int ret; - struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id); + struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname)); ret = idmap_lookup(rqstp, idtoname_lookup, &key, nn->idtoname_cache, &item); diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 987e719fbae..c9c1c0a2541 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -354,10 +354,10 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, /* Openowner is now set, so sequence id will get bumped. Now we need * these checks before we do any creates: */ status = nfserr_grace; - if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) + if (locks_in_grace(SVC_NET(rqstp)) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) goto out; status = nfserr_no_grace; - if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) + if (!locks_in_grace(SVC_NET(rqstp)) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) goto out; switch (open->op_claim_type) { @@ -686,7 +686,8 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_lock_state(); /* check stateid */ - if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid, + if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), + cstate, &read->rd_stateid, RD_STATE, &read->rd_filp))) { dprintk("NFSD: nfsd4_read: couldn't process stateid!\n"); goto out; @@ -741,7 +742,7 @@ nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, { __be32 status; - if (locks_in_grace()) + if (locks_in_grace(SVC_NET(rqstp))) return nfserr_grace; status = nfsd_unlink(rqstp, &cstate->current_fh, 0, remove->rm_name, remove->rm_namelen); @@ -760,8 +761,8 @@ nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (!cstate->save_fh.fh_dentry) return status; - if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags - & NFSEXP_NOSUBTREECHECK)) + if (locks_in_grace(SVC_NET(rqstp)) && + !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) return nfserr_grace; status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname, rename->rn_snamelen, &cstate->current_fh, @@ -845,7 +846,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { nfs4_lock_state(); - status = nfs4_preprocess_stateid_op(cstate, + status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate, &setattr->sa_stateid, WR_STATE, NULL); nfs4_unlock_state(); if (status) { @@ -890,7 +891,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return nfserr_inval; nfs4_lock_state(); - status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp); + status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), + cstate, stateid, WR_STATE, &filp); if (filp) get_file(filp); nfs4_unlock_state(); diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 8fdc9ec5c5d..cc894eda385 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -38,18 +38,21 @@ #include <linux/namei.h> #include <linux/swap.h> #include <linux/pagemap.h> +#include <linux/ratelimit.h> #include <linux/sunrpc/svcauth_gss.h> #include <linux/sunrpc/clnt.h> #include "xdr4.h" #include "vfs.h" #include "current_stateid.h" +#include "fault_inject.h" + +#include "netns.h" #define NFSDDBG_FACILITY NFSDDBG_PROC /* Globals */ time_t nfsd4_lease = 90; /* default lease time */ time_t nfsd4_grace = 90; -static time_t boot_time; #define all_ones {{~0,~0},~0} static const stateid_t one_stateid = { @@ -862,6 +865,11 @@ static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses, if (ret) /* oops; xprt is already down: */ nfsd4_conn_lost(&conn->cn_xpt_user); + if (ses->se_client->cl_cb_state == NFSD4_CB_DOWN && + dir & NFS4_CDFC4_BACK) { + /* callback channel may be back up */ + nfsd4_probe_callback(ses->se_client); + } return nfs_ok; } @@ -900,7 +908,7 @@ static void free_session(struct kref *kref) struct nfsd4_session *ses; int mem; - BUG_ON(!spin_is_locked(&client_lock)); + lockdep_assert_held(&client_lock); ses = container_of(kref, struct nfsd4_session, se_ref); nfsd4_del_conns(ses); spin_lock(&nfsd_drc_lock); @@ -1047,12 +1055,12 @@ renew_client(struct nfs4_client *clp) /* SETCLIENTID and SETCLIENTID_CONFIRM Helper functions */ static int -STALE_CLIENTID(clientid_t *clid) +STALE_CLIENTID(clientid_t *clid, struct nfsd_net *nn) { - if (clid->cl_boot == boot_time) + if (clid->cl_boot == nn->boot_time) return 0; dprintk("NFSD stale clientid (%08x/%08x) boot_time %08lx\n", - clid->cl_boot, clid->cl_id, boot_time); + clid->cl_boot, clid->cl_id, nn->boot_time); return 1; } @@ -1080,7 +1088,7 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name) static inline void free_client(struct nfs4_client *clp) { - BUG_ON(!spin_is_locked(&client_lock)); + lockdep_assert_held(&client_lock); while (!list_empty(&clp->cl_sessions)) { struct nfsd4_session *ses; ses = list_entry(clp->cl_sessions.next, struct nfsd4_session, @@ -1215,7 +1223,7 @@ static bool groups_equal(struct group_info *g1, struct group_info *g2) return true; } -static int +static bool same_creds(struct svc_cred *cr1, struct svc_cred *cr2) { if ((cr1->cr_flavor != cr2->cr_flavor) @@ -1227,14 +1235,15 @@ same_creds(struct svc_cred *cr1, struct svc_cred *cr2) return true; if (!cr1->cr_principal || !cr2->cr_principal) return false; - return 0 == strcmp(cr1->cr_principal, cr1->cr_principal); + return 0 == strcmp(cr1->cr_principal, cr2->cr_principal); } static void gen_clid(struct nfs4_client *clp) { static u32 current_clientid = 1; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); - clp->cl_clientid.cl_boot = boot_time; + clp->cl_clientid.cl_boot = nn->boot_time; clp->cl_clientid.cl_id = current_clientid++; } @@ -2217,8 +2226,9 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp, nfs4_verifier confirm = setclientid_confirm->sc_confirm; clientid_t * clid = &setclientid_confirm->sc_clientid; __be32 status; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); - if (STALE_CLIENTID(clid)) + if (STALE_CLIENTID(clid, nn)) return nfserr_stale_clientid; nfs4_lock_state(); @@ -2577,8 +2587,9 @@ nfsd4_process_open1(struct nfsd4_compound_state *cstate, unsigned int strhashval; struct nfs4_openowner *oo = NULL; __be32 status; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); - if (STALE_CLIENTID(&open->op_clientid)) + if (STALE_CLIENTID(&open->op_clientid, nn)) return nfserr_stale_clientid; /* * In case we need it later, after we've already created the @@ -2876,7 +2887,8 @@ static void nfsd4_open_deleg_none_ext(struct nfsd4_open *open, int status) * Attempt to hand out a delegation. */ static void -nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_ol_stateid *stp) +nfs4_open_delegation(struct net *net, struct svc_fh *fh, + struct nfsd4_open *open, struct nfs4_ol_stateid *stp) { struct nfs4_delegation *dp; struct nfs4_openowner *oo = container_of(stp->st_stateowner, struct nfs4_openowner, oo_owner); @@ -2897,7 +2909,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_ol_ case NFS4_OPEN_CLAIM_NULL: /* Let's not give out any delegations till everyone's * had the chance to reclaim theirs.... */ - if (locks_in_grace()) + if (locks_in_grace(net)) goto out; if (!cb_up || !(oo->oo_flags & NFS4_OO_CONFIRMED)) goto out; @@ -3007,14 +3019,12 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf status = nfs4_get_vfs_file(rqstp, fp, current_fh, open); if (status) goto out; + status = nfsd4_truncate(rqstp, current_fh, open); + if (status) + goto out; stp = open->op_stp; open->op_stp = NULL; init_open_stateid(stp, fp, open); - status = nfsd4_truncate(rqstp, current_fh, open); - if (status) { - release_open_stateid(stp); - goto out; - } } update_stateid(&stp->st_stid.sc_stateid); memcpy(&open->op_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); @@ -3033,7 +3043,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf * Attempt to hand out a delegation. No error return, because the * OPEN succeeds even if we fail. */ - nfs4_open_delegation(current_fh, open, stp); + nfs4_open_delegation(SVC_NET(rqstp), current_fh, open, stp); nodeleg: status = nfs_ok; @@ -3087,12 +3097,13 @@ nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, { struct nfs4_client *clp; __be32 status; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); nfs4_lock_state(); dprintk("process_renew(%08x/%08x): starting\n", clid->cl_boot, clid->cl_id); status = nfserr_stale_clientid; - if (STALE_CLIENTID(clid)) + if (STALE_CLIENTID(clid, nn)) goto out; clp = find_confirmed_client(clid); status = nfserr_expired; @@ -3111,22 +3122,19 @@ out: return status; } -static struct lock_manager nfsd4_manager = { -}; - -static bool grace_ended; - static void -nfsd4_end_grace(void) +nfsd4_end_grace(struct net *net) { + struct nfsd_net *nn = net_generic(net, nfsd_net_id); + /* do nothing if grace period already ended */ - if (grace_ended) + if (nn->grace_ended) return; dprintk("NFSD: end of grace period\n"); - grace_ended = true; - nfsd4_record_grace_done(&init_net, boot_time); - locks_end_grace(&nfsd4_manager); + nn->grace_ended = true; + nfsd4_record_grace_done(net, nn->boot_time); + locks_end_grace(&nn->nfsd4_manager); /* * Now that every NFSv4 client has had the chance to recover and * to see the (possibly new, possibly shorter) lease time, we @@ -3149,7 +3157,7 @@ nfs4_laundromat(void) nfs4_lock_state(); dprintk("NFSD: laundromat service - starting\n"); - nfsd4_end_grace(); + nfsd4_end_grace(&init_net); INIT_LIST_HEAD(&reaplist); spin_lock(&client_lock); list_for_each_safe(pos, next, &client_lru) { @@ -3231,9 +3239,9 @@ static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_ol_stateid *s } static int -STALE_STATEID(stateid_t *stateid) +STALE_STATEID(stateid_t *stateid, struct nfsd_net *nn) { - if (stateid->si_opaque.so_clid.cl_boot == boot_time) + if (stateid->si_opaque.so_clid.cl_boot == nn->boot_time) return 0; dprintk("NFSD: stale stateid " STATEID_FMT "!\n", STATEID_VAL(stateid)); @@ -3273,11 +3281,11 @@ out: } static inline __be32 -check_special_stateids(svc_fh *current_fh, stateid_t *stateid, int flags) +check_special_stateids(struct net *net, svc_fh *current_fh, stateid_t *stateid, int flags) { if (ONE_STATEID(stateid) && (flags & RD_STATE)) return nfs_ok; - else if (locks_in_grace()) { + else if (locks_in_grace(net)) { /* Answer in remaining cases depends on existence of * conflicting state; so we must wait out the grace period. */ return nfserr_grace; @@ -3294,9 +3302,9 @@ check_special_stateids(svc_fh *current_fh, stateid_t *stateid, int flags) * that are not able to provide mandatory locking. */ static inline int -grace_disallows_io(struct inode *inode) +grace_disallows_io(struct net *net, struct inode *inode) { - return locks_in_grace() && mandatory_lock(inode); + return locks_in_grace(net) && mandatory_lock(inode); } /* Returns true iff a is later than b: */ @@ -3333,18 +3341,26 @@ static __be32 check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_s return nfserr_old_stateid; } -__be32 nfs4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid) +static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid) { struct nfs4_stid *s; struct nfs4_ol_stateid *ols; __be32 status; - if (STALE_STATEID(stateid)) - return nfserr_stale_stateid; - + if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) + return nfserr_bad_stateid; + /* Client debugging aid. */ + if (!same_clid(&stateid->si_opaque.so_clid, &cl->cl_clientid)) { + char addr_str[INET6_ADDRSTRLEN]; + rpc_ntop((struct sockaddr *)&cl->cl_addr, addr_str, + sizeof(addr_str)); + pr_warn_ratelimited("NFSD: client %s testing state ID " + "with incorrect client ID\n", addr_str); + return nfserr_bad_stateid; + } s = find_stateid(cl, stateid); if (!s) - return nfserr_stale_stateid; + return nfserr_bad_stateid; status = check_stateid_generation(stateid, &s->sc_stateid, 1); if (status) return status; @@ -3360,10 +3376,11 @@ __be32 nfs4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid) static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s) { struct nfs4_client *cl; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) return nfserr_bad_stateid; - if (STALE_STATEID(stateid)) + if (STALE_STATEID(stateid, nn)) return nfserr_stale_stateid; cl = find_confirmed_client(&stateid->si_opaque.so_clid); if (!cl) @@ -3379,7 +3396,7 @@ static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, s * Checks for stateid operations */ __be32 -nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate, +nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate, stateid_t *stateid, int flags, struct file **filpp) { struct nfs4_stid *s; @@ -3392,11 +3409,11 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate, if (filpp) *filpp = NULL; - if (grace_disallows_io(ino)) + if (grace_disallows_io(net, ino)) return nfserr_grace; if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) - return check_special_stateids(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); if (status) @@ -3463,7 +3480,8 @@ nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_lock_state(); list_for_each_entry(stateid, &test_stateid->ts_stateid_list, ts_id_list) - stateid->ts_id_status = nfs4_validate_stateid(cl, &stateid->ts_id_stateid); + stateid->ts_id_status = + nfsd4_validate_stateid(cl, &stateid->ts_id_stateid); nfs4_unlock_state(); return nfs_ok; @@ -3750,12 +3768,19 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfsd4_close_open_stateid(stp); oo->oo_last_closed_stid = stp; - /* place unused nfs4_stateowners on so_close_lru list to be - * released by the laundromat service after the lease period - * to enable us to handle CLOSE replay - */ - if (list_empty(&oo->oo_owner.so_stateids)) - move_to_close_lru(oo); + if (list_empty(&oo->oo_owner.so_stateids)) { + if (cstate->minorversion) { + release_openowner(oo); + cstate->replay_owner = NULL; + } else { + /* + * In the 4.0 case we need to keep the owners around a + * little while to handle CLOSE replay. + */ + if (list_empty(&oo->oo_owner.so_stateids)) + move_to_close_lru(oo); + } + } out: if (!cstate->replay_owner) nfs4_unlock_state(); @@ -4027,6 +4052,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, bool new_state = false; int lkflg; int err; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); dprintk("NFSD: nfsd4_lock: start=%Ld length=%Ld\n", (long long) lock->lk_offset, @@ -4044,11 +4070,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_lock_state(); if (lock->lk_is_new) { - /* - * Client indicates that this is a new lockowner. - * Use open owner and open stateid to create lock owner and - * lock stateid. - */ struct nfs4_ol_stateid *open_stp = NULL; if (nfsd4_has_session(cstate)) @@ -4058,7 +4079,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, sizeof(clientid_t)); status = nfserr_stale_clientid; - if (STALE_CLIENTID(&lock->lk_new_clientid)) + if (STALE_CLIENTID(&lock->lk_new_clientid, nn)) goto out; /* validate and update open stateid and open seqid */ @@ -4075,17 +4096,13 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, goto out; status = lookup_or_create_lock_state(cstate, open_stp, lock, &lock_stp, &new_state); - if (status) - goto out; - } else { - /* lock (lock owner + lock stateid) already exists */ + } else status = nfs4_preprocess_seqid_op(cstate, lock->lk_old_lock_seqid, &lock->lk_old_lock_stateid, NFS4_LOCK_STID, &lock_stp); - if (status) - goto out; - } + if (status) + goto out; lock_sop = lockowner(lock_stp->st_stateowner); lkflg = setlkflg(lock->lk_type); @@ -4094,10 +4111,10 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, goto out; status = nfserr_grace; - if (locks_in_grace() && !lock->lk_reclaim) + if (locks_in_grace(SVC_NET(rqstp)) && !lock->lk_reclaim) goto out; status = nfserr_no_grace; - if (!locks_in_grace() && lock->lk_reclaim) + if (!locks_in_grace(SVC_NET(rqstp)) && lock->lk_reclaim) goto out; locks_init_lock(&file_lock); @@ -4196,8 +4213,9 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct file_lock file_lock; struct nfs4_lockowner *lo; __be32 status; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); - if (locks_in_grace()) + if (locks_in_grace(SVC_NET(rqstp))) return nfserr_grace; if (check_lock_length(lockt->lt_offset, lockt->lt_length)) @@ -4206,7 +4224,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_lock_state(); status = nfserr_stale_clientid; - if (!nfsd4_has_session(cstate) && STALE_CLIENTID(&lockt->lt_clientid)) + if (!nfsd4_has_session(cstate) && STALE_CLIENTID(&lockt->lt_clientid, nn)) goto out; if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0))) @@ -4355,6 +4373,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, struct list_head matches; unsigned int hashval = ownerstr_hashval(clid->cl_id, owner); __be32 status; + struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id); dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n", clid->cl_boot, clid->cl_id); @@ -4362,7 +4381,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, /* XXX check for lease expiration */ status = nfserr_stale_clientid; - if (STALE_CLIENTID(clid)) + if (STALE_CLIENTID(clid, nn)) return status; nfs4_lock_state(); @@ -4564,7 +4583,7 @@ void nfsd_forget_openowners(u64 num) printk(KERN_INFO "NFSD: Forgot %d open owners", count); } -int nfsd_process_n_delegations(u64 num, void (*deleg_func)(struct nfs4_delegation *)) +int nfsd_process_n_delegations(u64 num, struct list_head *list) { int i, count = 0; struct nfs4_file *fp, *fnext; @@ -4573,7 +4592,7 @@ int nfsd_process_n_delegations(u64 num, void (*deleg_func)(struct nfs4_delegatio for (i = 0; i < FILE_HASH_SIZE; i++) { list_for_each_entry_safe(fp, fnext, &file_hashtbl[i], fi_hash) { list_for_each_entry_safe(dp, dnext, &fp->fi_delegations, dl_perfile) { - deleg_func(dp); + list_move(&dp->dl_recall_lru, list); if (++count == num) return count; } @@ -4586,9 +4605,16 @@ int nfsd_process_n_delegations(u64 num, void (*deleg_func)(struct nfs4_delegatio void nfsd_forget_delegations(u64 num) { unsigned int count; + LIST_HEAD(victims); + struct nfs4_delegation *dp, *dnext; + + spin_lock(&recall_lock); + count = nfsd_process_n_delegations(num, &victims); + spin_unlock(&recall_lock); nfs4_lock_state(); - count = nfsd_process_n_delegations(num, unhash_delegation); + list_for_each_entry_safe(dp, dnext, &victims, dl_recall_lru) + unhash_delegation(dp); nfs4_unlock_state(); printk(KERN_INFO "NFSD: Forgot %d delegations", count); @@ -4597,12 +4623,16 @@ void nfsd_forget_delegations(u64 num) void nfsd_recall_delegations(u64 num) { unsigned int count; + LIST_HEAD(victims); + struct nfs4_delegation *dp, *dnext; - nfs4_lock_state(); spin_lock(&recall_lock); - count = nfsd_process_n_delegations(num, nfsd_break_one_deleg); + count = nfsd_process_n_delegations(num, &victims); + list_for_each_entry_safe(dp, dnext, &victims, dl_recall_lru) { + list_del(&dp->dl_recall_lru); + nfsd_break_one_deleg(dp); + } spin_unlock(&recall_lock); - nfs4_unlock_state(); printk(KERN_INFO "NFSD: Recalled %d delegations", count); } @@ -4665,6 +4695,8 @@ set_max_delegations(void) int nfs4_state_start(void) { + struct net *net = &init_net; + struct nfsd_net *nn = net_generic(net, nfsd_net_id); int ret; /* @@ -4674,11 +4706,11 @@ nfs4_state_start(void) * to that instead and then do most of the rest of this on a per-net * basis. */ - get_net(&init_net); - nfsd4_client_tracking_init(&init_net); - boot_time = get_seconds(); - locks_start_grace(&nfsd4_manager); - grace_ended = false; + get_net(net); + nfsd4_client_tracking_init(net); + nn->boot_time = get_seconds(); + locks_start_grace(net, &nn->nfsd4_manager); + nn->grace_ended = false; printk(KERN_INFO "NFSD: starting %ld-second grace period\n", nfsd4_grace); ret = set_callback_cred(); @@ -4700,8 +4732,8 @@ nfs4_state_start(void) out_free_laundry: destroy_workqueue(laundry_wq); out_recovery: - nfsd4_client_tracking_exit(&init_net); - put_net(&init_net); + nfsd4_client_tracking_exit(net); + put_net(net); return ret; } @@ -4742,9 +4774,12 @@ __nfs4_state_shutdown(void) void nfs4_state_shutdown(void) { + struct net *net = &init_net; + struct nfsd_net *nn = net_generic(net, nfsd_net_id); + cancel_delayed_work_sync(&laundromat_work); destroy_workqueue(laundry_wq); - locks_end_grace(&nfsd4_manager); + locks_end_grace(&nn->nfsd4_manager); nfs4_lock_state(); __nfs4_state_shutdown(); nfs4_unlock_state(); diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 4949667c84e..6322df36031 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2259,7 +2259,7 @@ out_acl: if (bmval0 & FATTR4_WORD0_CASE_INSENSITIVE) { if ((buflen -= 4) < 0) goto out_resource; - WRITE32(1); + WRITE32(0); } if (bmval0 & FATTR4_WORD0_CASE_PRESERVING) { if ((buflen -= 4) < 0) diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index c55298ed577..fa49cff5ee6 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -673,9 +673,7 @@ static ssize_t __write_ports_addfd(char *buf) err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT); if (err < 0) { - if (nfsd_serv->sv_nrthreads == 1) - svc_shutdown_net(nfsd_serv, net); - svc_destroy(nfsd_serv); + nfsd_destroy(net); return err; } @@ -744,9 +742,7 @@ out_close: svc_xprt_put(xprt); } out_err: - if (nfsd_serv->sv_nrthreads == 1) - svc_shutdown_net(nfsd_serv, net); - svc_destroy(nfsd_serv); + nfsd_destroy(net); return err; } diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index 1671429ffa6..2244222368a 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -72,6 +72,19 @@ int nfsd_nrthreads(void); int nfsd_nrpools(void); int nfsd_get_nrthreads(int n, int *); int nfsd_set_nrthreads(int n, int *); +int nfsd_pool_stats_open(struct inode *, struct file *); +int nfsd_pool_stats_release(struct inode *, struct file *); + +static inline void nfsd_destroy(struct net *net) +{ + int destroy = (nfsd_serv->sv_nrthreads == 1); + + if (destroy) + svc_shutdown_net(nfsd_serv, net); + svc_destroy(nfsd_serv); + if (destroy) + nfsd_serv = NULL; +} #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) #ifdef CONFIG_NFSD_V2_ACL diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index ee709fc8f58..240473cb708 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -254,8 +254,6 @@ static void nfsd_shutdown(void) static void nfsd_last_thread(struct svc_serv *serv, struct net *net) { - /* When last nfsd thread exits we need to do some clean-up */ - nfsd_serv = NULL; nfsd_shutdown(); svc_rpcb_cleanup(serv, net); @@ -332,6 +330,7 @@ static int nfsd_get_default_max_blksize(void) int nfsd_create_serv(void) { int error; + struct net *net = current->nsproxy->net_ns; WARN_ON(!mutex_is_locked(&nfsd_mutex)); if (nfsd_serv) { @@ -346,7 +345,7 @@ int nfsd_create_serv(void) if (nfsd_serv == NULL) return -ENOMEM; - error = svc_bind(nfsd_serv, current->nsproxy->net_ns); + error = svc_bind(nfsd_serv, net); if (error < 0) { svc_destroy(nfsd_serv); return error; @@ -427,11 +426,7 @@ int nfsd_set_nrthreads(int n, int *nthreads) if (err) break; } - - if (nfsd_serv->sv_nrthreads == 1) - svc_shutdown_net(nfsd_serv, net); - svc_destroy(nfsd_serv); - + nfsd_destroy(net); return err; } @@ -478,9 +473,7 @@ out_shutdown: if (error < 0 && !nfsd_up_before) nfsd_shutdown(); out_destroy: - if (nfsd_serv->sv_nrthreads == 1) - svc_shutdown_net(nfsd_serv, net); - svc_destroy(nfsd_serv); /* Release server */ + nfsd_destroy(net); /* Release server */ out: mutex_unlock(&nfsd_mutex); return error; @@ -563,12 +556,13 @@ nfsd(void *vrqstp) nfsdstats.th_cnt --; out: - if (rqstp->rq_server->sv_nrthreads == 1) - svc_shutdown_net(rqstp->rq_server, &init_net); + rqstp->rq_server = NULL; /* Release the thread */ svc_exit_thread(rqstp); + nfsd_destroy(&init_net); + /* Release module */ mutex_unlock(&nfsd_mutex); module_put_and_exit(0); @@ -682,9 +676,7 @@ int nfsd_pool_stats_release(struct inode *inode, struct file *file) mutex_lock(&nfsd_mutex); /* this function really, really should have been called svc_put() */ - if (nfsd_serv->sv_nrthreads == 1) - svc_shutdown_net(nfsd_serv, net); - svc_destroy(nfsd_serv); + nfsd_destroy(net); mutex_unlock(&nfsd_mutex); return ret; } diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 849091e16ea..e6173147f98 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -450,8 +450,10 @@ static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s) #define WR_STATE 0x00000020 struct nfsd4_compound_state; +struct nfsd_net; -extern __be32 nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate, +extern __be32 nfs4_preprocess_stateid_op(struct net *net, + struct nfsd4_compound_state *cstate, stateid_t *stateid, int flags, struct file **filp); extern void nfs4_lock_state(void); extern void nfs4_unlock_state(void); @@ -475,7 +477,6 @@ extern __be32 nfs4_make_rec_clidname(char *clidname, struct xdr_netobj *clname); extern int nfs4_client_to_reclaim(const char *name); extern int nfs4_has_reclaimed_state(const char *name, bool use_exchange_id); extern void release_session_client(struct nfsd4_session *); -extern __be32 nfs4_validate_stateid(struct nfs4_client *, stateid_t *); extern void nfsd4_purge_closed_stateid(struct nfs4_stateowner *); /* nfs4recover operations */ diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index c8bd9c3be7f..702f64e820c 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -745,7 +745,7 @@ __be32 nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int may_flags, struct file **filp) { - struct dentry *dentry; + struct path path; struct inode *inode; int flags = O_RDONLY|O_LARGEFILE; __be32 err; @@ -757,13 +757,22 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, * If we get here, then the client has already done an "open", * and (hopefully) checked permission - so allow OWNER_OVERRIDE * in case a chmod has now revoked permission. + * + * Arguably we should also allow the owner override for + * directories, but we never have and it doesn't seem to have + * caused anyone a problem. If we were to change this, note + * also that our filldir callbacks would need a variant of + * lookup_one_len that doesn't check permissions. */ - err = fh_verify(rqstp, fhp, type, may_flags | NFSD_MAY_OWNER_OVERRIDE); + if (type == S_IFREG) + may_flags |= NFSD_MAY_OWNER_OVERRIDE; + err = fh_verify(rqstp, fhp, type, may_flags); if (err) goto out; - dentry = fhp->fh_dentry; - inode = dentry->d_inode; + path.mnt = fhp->fh_export->ex_path.mnt; + path.dentry = fhp->fh_dentry; + inode = path.dentry->d_inode; /* Disallow write access to files with the append-only bit set * or any access when mandatory locking enabled @@ -792,8 +801,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, else flags = O_WRONLY|O_LARGEFILE; } - *filp = dentry_open(dget(dentry), mntget(fhp->fh_export->ex_path.mnt), - flags, current_cred()); + *filp = dentry_open(&path, flags, current_cred()); if (IS_ERR(*filp)) host_err = PTR_ERR(*filp); else { @@ -1329,7 +1337,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, err = 0; switch (type) { case S_IFREG: - host_err = vfs_create(dirp, dchild, iap->ia_mode, NULL); + host_err = vfs_create(dirp, dchild, iap->ia_mode, true); if (!host_err) nfsd_check_ignore_resizing(iap); break; @@ -1492,7 +1500,7 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, goto out; } - host_err = vfs_create(dirp, dchild, iap->ia_mode, NULL); + host_err = vfs_create(dirp, dchild, iap->ia_mode, true); if (host_err < 0) { fh_drop_write(fhp); goto out_nfserr; |