[PATCH] knfsd: nfsd4: rename state list fields

Trivial renaming patch:

I can never remember, while looking at various lists relating the nfsd4 state
structures, which are the "heads" and which are items on other lists, or which
structures are actually on the various lists.  The following convention helps
me: given structures foo and bar, with foo containing the head of a list of
bars, use "bars" for the name of the head of the list contained in the struct
foo, and use "per_foo" for the entries in the struct bars.

Already done for struct nfs4_file; go ahead and do it for the other nfsd4
state structures.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 8841151..22e76e3 100644 (file)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -154,8 +154,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
        dp = kmem_cache_alloc(deleg_slab, GFP_KERNEL);
        if (dp == NULL)
                return dp;
-       INIT_LIST_HEAD(&dp->dl_del_perfile);
-       INIT_LIST_HEAD(&dp->dl_del_perclnt);
+       INIT_LIST_HEAD(&dp->dl_perfile);
+       INIT_LIST_HEAD(&dp->dl_perclnt);
        INIT_LIST_HEAD(&dp->dl_recall_lru);
        dp->dl_client = clp;
        get_nfs4_file(fp);
@@ -176,8 +176,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
                        current_fh->fh_handle.fh_size);
        dp->dl_time = 0;
        atomic_set(&dp->dl_count, 1);
-       list_add(&dp->dl_del_perfile, &fp->fi_delegations);
-       list_add(&dp->dl_del_perclnt, &clp->cl_del_perclnt);
+       list_add(&dp->dl_perfile, &fp->fi_delegations);
+       list_add(&dp->dl_perclnt, &clp->cl_delegations);
        return dp;
 }
 
@@ -214,8 +214,8 @@ nfs4_close_delegation(struct nfs4_delegation *dp)
 static void
 unhash_delegation(struct nfs4_delegation *dp)
 {
-       list_del_init(&dp->dl_del_perfile);
-       list_del_init(&dp->dl_del_perclnt);
+       list_del_init(&dp->dl_perfile);
+       list_del_init(&dp->dl_perclnt);
        spin_lock(&recall_lock);
        list_del_init(&dp->dl_recall_lru);
        spin_unlock(&recall_lock);
@@ -345,11 +345,11 @@ expire_client(struct nfs4_client *clp)
 
        INIT_LIST_HEAD(&reaplist);
        spin_lock(&recall_lock);
-       while (!list_empty(&clp->cl_del_perclnt)) {
-               dp = list_entry(clp->cl_del_perclnt.next, struct nfs4_delegation, dl_del_perclnt);
+       while (!list_empty(&clp->cl_delegations)) {
+               dp = list_entry(clp->cl_delegations.next, struct nfs4_delegation, dl_perclnt);
                dprintk("NFSD: expire client. dp %p, fp %p\n", dp,
                                dp->dl_flock);
-               list_del_init(&dp->dl_del_perclnt);
+               list_del_init(&dp->dl_perclnt);
                list_move(&dp->dl_recall_lru, &reaplist);
        }
        spin_unlock(&recall_lock);
@@ -361,8 +361,8 @@ expire_client(struct nfs4_client *clp)
        list_del(&clp->cl_idhash);
        list_del(&clp->cl_strhash);
        list_del(&clp->cl_lru);
-       while (!list_empty(&clp->cl_perclient)) {
-               sop = list_entry(clp->cl_perclient.next, struct nfs4_stateowner, so_perclient);
+       while (!list_empty(&clp->cl_openowners)) {
+               sop = list_entry(clp->cl_openowners.next, struct nfs4_stateowner, so_perclient);
                release_stateowner(sop);
        }
        put_nfs4_client(clp);
@@ -380,8 +380,8 @@ create_client(struct xdr_netobj name, char *recdir) {
        clp->cl_callback.cb_parsed = 0;
        INIT_LIST_HEAD(&clp->cl_idhash);
        INIT_LIST_HEAD(&clp->cl_strhash);
-       INIT_LIST_HEAD(&clp->cl_perclient);
-       INIT_LIST_HEAD(&clp->cl_del_perclnt);
+       INIT_LIST_HEAD(&clp->cl_openowners);
+       INIT_LIST_HEAD(&clp->cl_delegations);
        INIT_LIST_HEAD(&clp->cl_lru);
 out:
        return clp;
@@ -1074,13 +1074,13 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
        INIT_LIST_HEAD(&sop->so_idhash);
        INIT_LIST_HEAD(&sop->so_strhash);
        INIT_LIST_HEAD(&sop->so_perclient);
-       INIT_LIST_HEAD(&sop->so_perfilestate);
-       INIT_LIST_HEAD(&sop->so_perlockowner);  /* not used */
+       INIT_LIST_HEAD(&sop->so_stateids);
+       INIT_LIST_HEAD(&sop->so_perstateid);  /* not used */
        INIT_LIST_HEAD(&sop->so_close_lru);
        sop->so_time = 0;
        list_add(&sop->so_idhash, &ownerid_hashtbl[idhashval]);
        list_add(&sop->so_strhash, &ownerstr_hashtbl[strhashval]);
-       list_add(&sop->so_perclient, &clp->cl_perclient);
+       list_add(&sop->so_perclient, &clp->cl_openowners);
        sop->so_is_open_owner = 1;
        sop->so_id = current_ownerid++;
        sop->so_client = clp;
@@ -1098,10 +1098,10 @@ release_stateid_lockowners(struct nfs4_stateid *open_stp)
 {
        struct nfs4_stateowner *lock_sop;
 
-       while (!list_empty(&open_stp->st_perlockowner)) {
-               lock_sop = list_entry(open_stp->st_perlockowner.next,
-                               struct nfs4_stateowner, so_perlockowner);
-               /* list_del(&open_stp->st_perlockowner);  */
+       while (!list_empty(&open_stp->st_lockowners)) {
+               lock_sop = list_entry(open_stp->st_lockowners.next,
+                               struct nfs4_stateowner, so_perstateid);
+               /* list_del(&open_stp->st_lockowners);  */
                BUG_ON(lock_sop->so_is_open_owner);
                release_stateowner(lock_sop);
        }
@@ -1116,10 +1116,10 @@ unhash_stateowner(struct nfs4_stateowner *sop)
        list_del(&sop->so_strhash);
        if (sop->so_is_open_owner)
                list_del(&sop->so_perclient);
-       list_del(&sop->so_perlockowner);
-       while (!list_empty(&sop->so_perfilestate)) {
-               stp = list_entry(sop->so_perfilestate.next, 
-                       struct nfs4_stateid, st_perfilestate);
+       list_del(&sop->so_perstateid);
+       while (!list_empty(&sop->so_stateids)) {
+               stp = list_entry(sop->so_stateids.next,
+                       struct nfs4_stateid, st_perstateowner);
                if (sop->so_is_open_owner)
                        release_stateid(stp, OPEN_STATE);
                else
@@ -1141,11 +1141,11 @@ init_stateid(struct nfs4_stateid *stp, struct nfs4_file *fp, struct nfsd4_open *
        unsigned int hashval = stateid_hashval(sop->so_id, fp->fi_id);
 
        INIT_LIST_HEAD(&stp->st_hash);
-       INIT_LIST_HEAD(&stp->st_perfilestate);
-       INIT_LIST_HEAD(&stp->st_perlockowner);
+       INIT_LIST_HEAD(&stp->st_perstateowner);
+       INIT_LIST_HEAD(&stp->st_lockowners);
        INIT_LIST_HEAD(&stp->st_perfile);
        list_add(&stp->st_hash, &stateid_hashtbl[hashval]);
-       list_add(&stp->st_perfilestate, &sop->so_perfilestate);
+       list_add(&stp->st_perstateowner, &sop->so_stateids);
        list_add(&stp->st_perfile, &fp->fi_stateids);
        stp->st_stateowner = sop;
        get_nfs4_file(fp);
@@ -1167,7 +1167,7 @@ release_stateid(struct nfs4_stateid *stp, int flags)
 
        list_del(&stp->st_hash);
        list_del(&stp->st_perfile);
-       list_del(&stp->st_perfilestate);
+       list_del(&stp->st_perstateowner);
        if (flags & OPEN_STATE) {
                release_stateid_lockowners(stp);
                stp->st_vfs_file = NULL;
@@ -1201,7 +1201,7 @@ release_state_owner(struct nfs4_stateid *stp, int flag)
         * released by the laundromat service after the lease period
         * to enable us to handle CLOSE replay
         */
-       if (sop->so_confirmed && list_empty(&sop->so_perfilestate))
+       if (sop->so_confirmed && list_empty(&sop->so_stateids))
                move_to_close_lru(sop);
 }
 
@@ -1548,7 +1548,7 @@ find_delegation_file(struct nfs4_file *fp, stateid_t *stid)
 {
        struct nfs4_delegation *dp;
 
-       list_for_each_entry(dp, &fp->fi_delegations, dl_del_perfile) {
+       list_for_each_entry(dp, &fp->fi_delegations, dl_perfile) {
                if (dp->dl_stateid.si_stateownerid == stid->si_stateownerid)
                        return dp;
        }
@@ -1892,7 +1892,7 @@ nfsd4_renew(clientid_t *clid)
        }
        renew_client(clp);
        status = nfserr_cb_path_down;
-       if (!list_empty(&clp->cl_del_perclnt)
+       if (!list_empty(&clp->cl_delegations)
                        && !atomic_read(&clp->cl_callback.cb_set))
                goto out;
        status = nfs_ok;
@@ -2634,13 +2634,13 @@ alloc_init_lock_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
        INIT_LIST_HEAD(&sop->so_idhash);
        INIT_LIST_HEAD(&sop->so_strhash);
        INIT_LIST_HEAD(&sop->so_perclient);
-       INIT_LIST_HEAD(&sop->so_perfilestate);
-       INIT_LIST_HEAD(&sop->so_perlockowner);
+       INIT_LIST_HEAD(&sop->so_stateids);
+       INIT_LIST_HEAD(&sop->so_perstateid);
        INIT_LIST_HEAD(&sop->so_close_lru); /* not used */
        sop->so_time = 0;
        list_add(&sop->so_idhash, &lock_ownerid_hashtbl[idhashval]);
        list_add(&sop->so_strhash, &lock_ownerstr_hashtbl[strhashval]);
-       list_add(&sop->so_perlockowner, &open_stp->st_perlockowner);
+       list_add(&sop->so_perstateid, &open_stp->st_lockowners);
        sop->so_is_open_owner = 0;
        sop->so_id = current_ownerid++;
        sop->so_client = clp;
@@ -2664,11 +2664,11 @@ alloc_init_lock_stateid(struct nfs4_stateowner *sop, struct nfs4_file *fp, struc
                goto out;
        INIT_LIST_HEAD(&stp->st_hash);
        INIT_LIST_HEAD(&stp->st_perfile);
-       INIT_LIST_HEAD(&stp->st_perfilestate);
-       INIT_LIST_HEAD(&stp->st_perlockowner); /* not used */
+       INIT_LIST_HEAD(&stp->st_perstateowner);
+       INIT_LIST_HEAD(&stp->st_lockowners); /* not used */
        list_add(&stp->st_hash, &lockstateid_hashtbl[hashval]);
        list_add(&stp->st_perfile, &fp->fi_stateids);
-       list_add(&stp->st_perfilestate, &sop->so_perfilestate);
+       list_add(&stp->st_perstateowner, &sop->so_stateids);
        stp->st_stateowner = sop;
        get_nfs4_file(fp);
        stp->st_file = fp;
@@ -3081,8 +3081,8 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, struct nfsd4_release_lockowner *
                /* check for any locks held by any stateid
                 * associated with the (lock) stateowner */
                status = nfserr_locks_held;
-               list_for_each_entry(stp, &local->so_perfilestate,
-                               st_perfilestate) {
+               list_for_each_entry(stp, &local->so_stateids,
+                               st_perstateowner) {
                        if (check_for_locks(stp->st_vfs_file, local))
                                goto out;
                }

diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index 0e18ae2..f4f27b7 100644 (file)
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -72,8 +72,8 @@ struct nfs4_cb_recall {
 };
 
 struct nfs4_delegation {
-       struct list_head        dl_del_perfile; /* nfs4_file->fi_del_perfile */
-       struct list_head        dl_del_perclnt; /* nfs4_client->cl_del_perclnt*/
+       struct list_head        dl_perfile;
+       struct list_head        dl_perclnt;
        struct list_head        dl_recall_lru;  /* delegation recalled */
        atomic_t                dl_count;       /* ref count */
        struct nfs4_client      *dl_client;
@@ -119,8 +119,8 @@ struct nfs4_callback {
 struct nfs4_client {
        struct list_head        cl_idhash;      /* hash by cl_clientid.id */
        struct list_head        cl_strhash;     /* hash by cl_name */
-       struct list_head        cl_perclient;   /* list: stateowners */
-       struct list_head        cl_del_perclnt; /* list: delegations */
+       struct list_head        cl_openowners;
+       struct list_head        cl_delegations;
        struct list_head        cl_lru;         /* tail queue */
        struct xdr_netobj       cl_name;        /* id generated by client */
        char                    cl_recdir[HEXDIR_LEN]; /* recovery dir */
@@ -195,9 +195,9 @@ struct nfs4_stateowner {
        struct kref             so_ref;
        struct list_head        so_idhash;   /* hash by so_id */
        struct list_head        so_strhash;   /* hash by op_name */
-       struct list_head        so_perclient; /* nfs4_client->cl_perclient */
-       struct list_head        so_perfilestate; /* list: nfs4_stateid */
-       struct list_head        so_perlockowner; /* nfs4_stateid->st_perlockowner */
+       struct list_head        so_perclient;
+       struct list_head        so_stateids;
+       struct list_head        so_perstateid; /* for lockowners only */
        struct list_head        so_close_lru; /* tail queue */
        time_t                  so_time; /* time of placement on so_close_lru */
        int                     so_is_open_owner; /* 1=openowner,0=lockowner */
@@ -240,8 +240,8 @@ struct nfs4_file {
 struct nfs4_stateid {
        struct list_head              st_hash; 
        struct list_head              st_perfile;
-       struct list_head              st_perfilestate; 
-       struct list_head              st_perlockowner;
+       struct list_head              st_perstateowner;
+       struct list_head              st_lockowners;
        struct nfs4_stateowner      * st_stateowner;
        struct nfs4_file            * st_file;
        stateid_t                     st_stateid;