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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
nfsd: Add a struct nfs4_file field to struct nfs4_stid
All stateids are associated with a nfs4_file. Let's consolidate. Replace delegation->dl_file with the dl_stid.sc_file, and nfs4_ol_stateid->st_file with st_stid.sc_file. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
parent
6011695da2
commit
11b9164ada
3 changed files with 36 additions and 38 deletions
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@ -337,7 +337,7 @@ static void encode_cb_recall4args(struct xdr_stream *xdr,
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p = xdr_reserve_space(xdr, 4);
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*p++ = xdr_zero; /* truncate */
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encode_nfs_fh4(xdr, &dp->dl_file->fi_fhandle);
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encode_nfs_fh4(xdr, &dp->dl_stid.sc_file->fi_fhandle);
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hdr->nops++;
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}
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@ -515,10 +515,6 @@ static struct nfs4_ol_stateid * nfs4_alloc_stateid(struct nfs4_client *clp)
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static void nfs4_free_deleg(struct nfs4_stid *stid)
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{
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struct nfs4_delegation *dp = delegstateid(stid);
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if (dp->dl_file)
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put_nfs4_file(dp->dl_file);
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kmem_cache_free(deleg_slab, stid);
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atomic_long_dec(&num_delegations);
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}
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@ -636,12 +632,15 @@ alloc_init_deleg(struct nfs4_client *clp, struct svc_fh *current_fh)
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void
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nfs4_put_stid(struct nfs4_stid *s)
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{
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struct nfs4_file *fp = s->sc_file;
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struct nfs4_client *clp = s->sc_client;
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if (!atomic_dec_and_test(&s->sc_count))
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return;
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idr_remove(&clp->cl_stateids, s->sc_stateid.si_opaque.so_id);
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s->sc_free(s);
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if (fp)
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put_nfs4_file(fp);
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}
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static void nfs4_put_deleg_lease(struct nfs4_file *fp)
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@ -677,7 +676,7 @@ hash_delegation_locked(struct nfs4_delegation *dp, struct nfs4_file *fp)
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static void
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unhash_delegation_locked(struct nfs4_delegation *dp)
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{
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struct nfs4_file *fp = dp->dl_file;
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struct nfs4_file *fp = dp->dl_stid.sc_file;
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lockdep_assert_held(&state_lock);
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@ -864,7 +863,7 @@ reset_union_bmap_deny(u32 deny, struct nfs4_ol_stateid *stp)
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/* Recalculate per-file deny mode if there was a change */
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if (change)
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recalculate_deny_mode(stp->st_file);
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recalculate_deny_mode(stp->st_stid.sc_file);
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}
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/* release all access and file references for a given stateid */
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@ -872,21 +871,21 @@ static void
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release_all_access(struct nfs4_ol_stateid *stp)
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{
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int i;
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struct nfs4_file *fp = stp->st_file;
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struct nfs4_file *fp = stp->st_stid.sc_file;
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if (fp && stp->st_deny_bmap != 0)
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recalculate_deny_mode(fp);
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for (i = 1; i < 4; i++) {
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if (test_access(i, stp))
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nfs4_file_put_access(stp->st_file, i);
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nfs4_file_put_access(stp->st_stid.sc_file, i);
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clear_access(i, stp);
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}
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}
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static void unhash_generic_stateid(struct nfs4_ol_stateid *stp)
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{
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struct nfs4_file *fp = stp->st_file;
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struct nfs4_file *fp = stp->st_stid.sc_file;
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spin_lock(&fp->fi_lock);
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list_del(&stp->st_perfile);
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@ -899,8 +898,6 @@ static void nfs4_free_ol_stateid(struct nfs4_stid *stid)
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struct nfs4_ol_stateid *stp = openlockstateid(stid);
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release_all_access(stp);
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if (stp->st_file)
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put_nfs4_file(stp->st_file);
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kmem_cache_free(stateid_slab, stid);
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}
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@ -911,7 +908,7 @@ static void __release_lock_stateid(struct nfs4_ol_stateid *stp)
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list_del(&stp->st_locks);
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unhash_generic_stateid(stp);
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unhash_stid(&stp->st_stid);
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file = find_any_file(stp->st_file);
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file = find_any_file(stp->st_stid.sc_file);
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if (file)
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filp_close(file, (fl_owner_t)lockowner(stp->st_stateowner));
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nfs4_put_stid(&stp->st_stid);
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@ -2976,7 +2973,7 @@ static void init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_file *fp,
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list_add(&stp->st_perstateowner, &oo->oo_owner.so_stateids);
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stp->st_stateowner = &oo->oo_owner;
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get_nfs4_file(fp);
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stp->st_file = fp;
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stp->st_stid.sc_file = fp;
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stp->st_access_bmap = 0;
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stp->st_deny_bmap = 0;
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stp->st_openstp = NULL;
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@ -3097,10 +3094,10 @@ nfs4_share_conflict(struct svc_fh *current_fh, unsigned int deny_type)
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void nfsd4_prepare_cb_recall(struct nfs4_delegation *dp)
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{
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struct nfs4_client *clp = dp->dl_stid.sc_client;
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struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
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struct nfsd_net *nn = net_generic(dp->dl_stid.sc_client->net,
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nfsd_net_id);
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block_delegations(&dp->dl_file->fi_fhandle);
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block_delegations(&dp->dl_stid.sc_file->fi_fhandle);
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/*
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* We can't do this in nfsd_break_deleg_cb because it is
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@ -3508,7 +3505,7 @@ static struct file_lock *nfs4_alloc_init_lease(struct nfs4_file *fp, int flag)
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static int nfs4_setlease(struct nfs4_delegation *dp)
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{
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struct nfs4_file *fp = dp->dl_file;
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struct nfs4_file *fp = dp->dl_stid.sc_file;
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struct file_lock *fl;
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struct file *filp;
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int status = 0;
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@ -3573,7 +3570,7 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
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get_nfs4_file(fp);
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spin_lock(&state_lock);
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spin_lock(&fp->fi_lock);
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dp->dl_file = fp;
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dp->dl_stid.sc_file = fp;
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if (!fp->fi_lease) {
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spin_unlock(&fp->fi_lock);
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spin_unlock(&state_lock);
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@ -3669,7 +3666,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open,
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default:
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goto out_no_deleg;
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}
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dp = nfs4_set_delegation(clp, fh, stp->st_file);
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dp = nfs4_set_delegation(clp, fh, stp->st_stid.sc_file);
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if (IS_ERR(dp))
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goto out_no_deleg;
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@ -3959,7 +3956,7 @@ laundromat_main(struct work_struct *laundry)
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static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_ol_stateid *stp)
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{
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if (!nfsd_fh_match(&fhp->fh_handle, &stp->st_file->fi_fhandle))
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if (!nfsd_fh_match(&fhp->fh_handle, &stp->st_stid.sc_file->fi_fhandle))
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return nfserr_bad_stateid;
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return nfs_ok;
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}
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@ -4167,7 +4164,7 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
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if (status)
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goto out;
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if (filpp) {
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file = dp->dl_file->fi_deleg_file;
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file = dp->dl_stid.sc_file->fi_deleg_file;
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if (!file) {
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WARN_ON_ONCE(1);
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status = nfserr_serverfault;
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@ -4189,10 +4186,12 @@ nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
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if (status)
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goto out;
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if (filpp) {
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struct nfs4_file *fp = stp->st_stid.sc_file;
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if (flags & RD_STATE)
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file = find_readable_file(stp->st_file);
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file = find_readable_file(fp);
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else
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file = find_writeable_file(stp->st_file);
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file = find_writeable_file(fp);
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}
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break;
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default:
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@ -4212,7 +4211,7 @@ nfsd4_free_lock_stateid(struct nfs4_ol_stateid *stp)
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{
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struct nfs4_lockowner *lo = lockowner(stp->st_stateowner);
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if (check_for_locks(stp->st_file, lo))
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if (check_for_locks(stp->st_stid.sc_file, lo))
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return nfserr_locks_held;
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release_lockowner_if_empty(lo);
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return nfs_ok;
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@ -4403,7 +4402,7 @@ static inline void nfs4_stateid_downgrade_bit(struct nfs4_ol_stateid *stp, u32 a
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{
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if (!test_access(access, stp))
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return;
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nfs4_file_put_access(stp->st_file, access);
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nfs4_file_put_access(stp->st_stid.sc_file, access);
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clear_access(access, stp);
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}
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* before returning however.
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*/
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release_all_access(s);
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if (s->st_file) {
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put_nfs4_file(s->st_file);
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s->st_file = NULL;
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if (s->st_stid.sc_file) {
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put_nfs4_file(s->st_stid.sc_file);
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s->st_stid.sc_file = NULL;
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}
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oo->oo_last_closed_stid = s;
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if (list_empty(&oo->oo_owner.so_stateids))
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list_add(&stp->st_perstateowner, &lo->lo_owner.so_stateids);
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stp->st_stateowner = &lo->lo_owner;
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get_nfs4_file(fp);
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stp->st_file = fp;
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stp->st_stid.sc_file = fp;
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stp->st_access_bmap = 0;
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stp->st_deny_bmap = open_stp->st_deny_bmap;
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stp->st_openstp = open_stp;
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@ -4712,7 +4711,7 @@ find_lock_stateid(struct nfs4_lockowner *lo, struct nfs4_file *fp)
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struct nfs4_ol_stateid *lst;
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list_for_each_entry(lst, &lo->lo_owner.so_stateids, st_perstateowner) {
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if (lst->st_file == fp)
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if (lst->st_stid.sc_file == fp)
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return lst;
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}
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return NULL;
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@ -4728,7 +4727,7 @@ check_lock_length(u64 offset, u64 length)
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static void get_lock_access(struct nfs4_ol_stateid *lock_stp, u32 access)
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{
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struct nfs4_file *fp = lock_stp->st_file;
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struct nfs4_file *fp = lock_stp->st_stid.sc_file;
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lockdep_assert_held(&fp->fi_lock);
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@ -4740,7 +4739,7 @@ static void get_lock_access(struct nfs4_ol_stateid *lock_stp, u32 access)
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static __be32 lookup_or_create_lock_state(struct nfsd4_compound_state *cstate, struct nfs4_ol_stateid *ost, struct nfsd4_lock *lock, struct nfs4_ol_stateid **lst, bool *new)
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{
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struct nfs4_file *fi = ost->st_file;
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struct nfs4_file *fi = ost->st_stid.sc_file;
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struct nfs4_openowner *oo = openowner(ost->st_stateowner);
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struct nfs4_client *cl = oo->oo_owner.so_client;
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struct inode *inode = cstate->current_fh.fh_dentry->d_inode;
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@ -4865,7 +4864,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
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goto out;
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}
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fp = lock_stp->st_file;
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fp = lock_stp->st_stid.sc_file;
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locks_init_lock(file_lock);
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switch (lock->lk_type) {
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case NFS4_READ_LT:
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@ -5065,7 +5064,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
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&stp, nn);
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if (status)
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goto out;
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filp = find_any_file(stp->st_file);
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filp = find_any_file(stp->st_stid.sc_file);
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if (!filp) {
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status = nfserr_lock_range;
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goto out;
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lo = lockowner(sop);
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/* see if there are still any locks associated with it */
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list_for_each_entry(stp, &sop->so_stateids, st_perstateowner) {
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if (check_for_locks(stp->st_file, lo))
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if (check_for_locks(stp->st_stid.sc_file, lo))
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goto out;
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}
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@ -85,6 +85,7 @@ struct nfs4_stid {
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unsigned char sc_type;
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stateid_t sc_stateid;
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struct nfs4_client *sc_client;
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struct nfs4_file *sc_file;
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void (*sc_free)(struct nfs4_stid *);
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};
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@ -93,7 +94,6 @@ struct nfs4_delegation {
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struct list_head dl_perfile;
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struct list_head dl_perclnt;
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struct list_head dl_recall_lru; /* delegation recalled */
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struct nfs4_file *dl_file;
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u32 dl_type;
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time_t dl_time;
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/* For recall: */
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@ -407,7 +407,6 @@ struct nfs4_ol_stateid {
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struct list_head st_perstateowner;
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struct list_head st_locks;
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struct nfs4_stateowner * st_stateowner;
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struct nfs4_file * st_file;
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unsigned char st_access_bmap;
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unsigned char st_deny_bmap;
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struct nfs4_ol_stateid * st_openstp;
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