[PATCH] nfsd4: rename nfs4_file 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.

Go ahead and do this for struct nfs4_file.

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>

fs/nfsd/nfs4state.c

@@ -153,7 +153,7 @@ 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_del_perfile);
+	list_add(&dp->dl_del_perfile, &fp->fi_delegations);
 	list_add(&dp->dl_del_perclnt, &clp->cl_del_perclnt);
 	return dp;
 }
@@ -954,8 +954,8 @@ alloc_init_file(struct inode *ino)
 	fp = kmem_cache_alloc(file_slab, GFP_KERNEL);
 	if (fp) {
 		INIT_LIST_HEAD(&fp->fi_hash);
-		INIT_LIST_HEAD(&fp->fi_perfile);
-		INIT_LIST_HEAD(&fp->fi_del_perfile);
+		INIT_LIST_HEAD(&fp->fi_stateids);
+		INIT_LIST_HEAD(&fp->fi_delegations);
 		list_add(&fp->fi_hash, &file_hashtbl[hashval]);
 		fp->fi_inode = igrab(ino);
 		fp->fi_id = current_fileid++;
@@ -974,7 +974,7 @@ release_all_files(void)
 		while (!list_empty(&file_hashtbl[i])) {
 			fp = list_entry(file_hashtbl[i].next, struct nfs4_file, fi_hash);
 			/* this should never be more than once... */
-			if (!list_empty(&fp->fi_perfile) || !list_empty(&fp->fi_del_perfile)) {
+			if (!list_empty(&fp->fi_stateids) || !list_empty(&fp->fi_delegations)) {
 				printk("ERROR: release_all_files: file %p is open, creating dangling state !!!\n",fp);
 			}
 			release_file(fp);
@@ -1139,7 +1139,7 @@ init_stateid(struct nfs4_stateid *stp, struct nfs4_file *fp, struct nfsd4_open *
 	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_perfile, &fp->fi_perfile);
+	list_add(&stp->st_perfile, &fp->fi_stateids);
 	stp->st_stateowner = sop;
 	stp->st_file = fp;
 	stp->st_stateid.si_boot = boot_time;
@@ -1204,7 +1204,7 @@ release_state_owner(struct nfs4_stateid *stp, int flag)
 	if (sop->so_confirmed && list_empty(&sop->so_perfilestate))
 		move_to_close_lru(sop);
 	/* unused nfs4_file's are releseed. XXX slab cache? */
-	if (list_empty(&fp->fi_perfile) && list_empty(&fp->fi_del_perfile)) {
+	if (list_empty(&fp->fi_stateids) && list_empty(&fp->fi_delegations)) {
 		release_file(fp);
 	}
 }
@@ -1294,7 +1294,7 @@ nfs4_share_conflict(struct svc_fh *current_fh, unsigned int deny_type)
 	fp = find_file(ino);
 	if (fp) {
 	/* Search for conflicting share reservations */
-		list_for_each_entry(stp, &fp->fi_perfile, st_perfile) {
+		list_for_each_entry(stp, &fp->fi_stateids, st_perfile) {
 			if (test_bit(deny_type, &stp->st_deny_bmap) ||
 			    test_bit(NFS4_SHARE_DENY_BOTH, &stp->st_deny_bmap))
 				return nfserr_share_denied;
@@ -1545,7 +1545,7 @@ find_delegation_file(struct nfs4_file *fp, stateid_t *stid)
 {
 	struct nfs4_delegation *dp;
 
-	list_for_each_entry(dp, &fp->fi_del_perfile, dl_del_perfile) {
+	list_for_each_entry(dp, &fp->fi_delegations, dl_del_perfile) {
 		if (dp->dl_stateid.si_stateownerid == stid->si_stateownerid)
 			return dp;
 	}
@@ -1583,7 +1583,7 @@ nfs4_check_open(struct nfs4_file *fp, struct nfsd4_open *open, struct nfs4_state
 	int status = nfserr_share_denied;
 	struct nfs4_stateowner *sop = open->op_stateowner;
 
-	list_for_each_entry(local, &fp->fi_perfile, st_perfile) {
+	list_for_each_entry(local, &fp->fi_stateids, st_perfile) {
 		/* ignore lock owners */
 		if (local->st_stateowner->so_is_open_owner == 0)
 			continue;
@@ -1830,7 +1830,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
 	            stp->st_stateid.si_fileid, stp->st_stateid.si_generation);
 out:
 	/* take the opportunity to clean up unused state */
-	if (fp && list_empty(&fp->fi_perfile) && list_empty(&fp->fi_del_perfile))
+	if (fp && list_empty(&fp->fi_stateids) && list_empty(&fp->fi_delegations))
 		release_file(fp);
 
 	/* CLAIM_PREVIOUS has different error returns */
@@ -2633,7 +2633,7 @@ alloc_init_lock_stateid(struct nfs4_stateowner *sop, struct nfs4_file *fp, struc
 	INIT_LIST_HEAD(&stp->st_perfilestate);
 	INIT_LIST_HEAD(&stp->st_perlockowner); /* not used */
 	list_add(&stp->st_hash, &lockstateid_hashtbl[hashval]);
-	list_add(&stp->st_perfile, &fp->fi_perfile);
+	list_add(&stp->st_perfile, &fp->fi_stateids);
 	list_add(&stp->st_perfilestate, &sop->so_perfilestate);
 	stp->st_stateowner = sop;
 	stp->st_file = fp;

include/linux/nfsd/state.h

@@ -218,8 +218,8 @@ struct nfs4_stateowner {
 */
 struct nfs4_file {
 	struct list_head        fi_hash;    /* hash by "struct inode *" */
-	struct list_head        fi_perfile; /* list: nfs4_stateid */
-	struct list_head	fi_del_perfile; /* list: nfs4_delegation */
+	struct list_head        fi_stateids;
+	struct list_head	fi_delegations;
 	struct inode		*fi_inode;
 	u32                     fi_id;      /* used with stateowner->so_id 
 					     * for stateid_hashtbl hash */