[PATCH] knfsd: allocate and initialize the delegation structure.

Declare and initialize the recall_lru list.
Signed-off-by: Andy Adamson <andros@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

@@ -57,8 +57,9 @@ static u32 nfs4_reclaim_init = 0;
 time_t boot_time;
 static time_t grace_end = 0;
 static u32 current_clientid = 1;
-static u32 current_ownerid;
-static u32 current_fileid;
+static u32 current_ownerid = 1;
+static u32 current_fileid = 1;
+static u32 current_delegid = 1;
 static u32 nfs4_init;
 stateid_t zerostateid;             /* bits all 0 */
 stateid_t onestateid;              /* bits all 1 */
@@ -75,6 +76,8 @@ u32 free_sowner = 0;
 u32 vfsopen = 0;
 u32 vfsclose = 0;
 u32 alloc_lsowner= 0;
+u32 alloc_delegation= 0;
+u32 free_delegation= 0;
 
 /* forward declarations */
 struct nfs4_stateid * find_stateid(stateid_t *stid, int flags);
@@ -117,6 +120,50 @@ static void release_stateowner(struct nfs4_stateowner *sop);
 static void release_stateid(struct nfs4_stateid *stp, int flags);
 static void release_file(struct nfs4_file *fp);
 
+/*
+ * Delegation state
+ */
+
+/* recall_lock protects the del_recall_lru */
+spinlock_t recall_lock;
+static struct list_head del_recall_lru;
+
+static struct nfs4_delegation *
+alloc_init_deleg(struct nfs4_client *clp, struct nfs4_file *fp, struct svc_fh *current_fh, u32 type)
+{
+	struct nfs4_delegation *dp;
+
+	dprintk("NFSD alloc_init_deleg\n");
+	if ((dp = kmalloc(sizeof(struct nfs4_delegation),
+		GFP_KERNEL)) == NULL)
+		return dp;
+	INIT_LIST_HEAD(&dp->dl_del_perfile);
+	INIT_LIST_HEAD(&dp->dl_del_perclnt);
+	INIT_LIST_HEAD(&dp->dl_recall_lru);
+	dp->dl_client = clp;
+	dp->dl_file = fp;
+	dp->dl_flock = NULL;
+	dp->dl_stp = NULL;
+	dp->dl_type = type;
+	dp->dl_recall.cbr_dp = NULL;
+	dp->dl_recall.cbr_ident = 0;
+	dp->dl_recall.cbr_trunc = 0;
+	dp->dl_stateid.si_boot = boot_time;
+	dp->dl_stateid.si_stateownerid = current_delegid++;
+	dp->dl_stateid.si_fileid = 0;
+	dp->dl_stateid.si_generation = 0;
+	dp->dl_fhlen = current_fh->fh_handle.fh_size;
+	memcpy(dp->dl_fhval, &current_fh->fh_handle.fh_base,
+		        current_fh->fh_handle.fh_size);
+	dp->dl_time = 0;
+	atomic_set(&dp->dl_state, NFS4_NO_RECALL);
+	atomic_set(&dp->dl_count, 1);
+	atomic_set(&dp->dl_recall_cnt, 0);
+	list_add(&dp->dl_del_perfile, &fp->fi_del_perfile);
+	list_add(&dp->dl_del_perclnt, &clp->cl_del_perclnt);
+	alloc_delegation++;
+	return dp;
+}
 
 /* 
  * SETCLIENTID state 
@@ -248,6 +295,7 @@ create_client(struct xdr_netobj name) {
 	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_lru);
 out:
 	return clp;
@@ -824,6 +872,7 @@ alloc_init_file(unsigned int hashval, struct inode *ino) {
 	if ((fp = kmalloc(sizeof(struct nfs4_file),GFP_KERNEL))) {
 		INIT_LIST_HEAD(&fp->fi_hash);
 		INIT_LIST_HEAD(&fp->fi_perfile);
+		INIT_LIST_HEAD(&fp->fi_del_perfile);
 		list_add(&fp->fi_hash, &file_hashtbl[hashval]);
 		fp->fi_inode = igrab(ino);
 		fp->fi_id = current_fileid++;
@@ -2738,6 +2787,8 @@ nfs4_state_init(void)
 
 	INIT_LIST_HEAD(&close_lru);
 	INIT_LIST_HEAD(&client_lru);
+	INIT_LIST_HEAD(&del_recall_lru);
+	spin_lock_init(&recall_lock);
 	boot_time = get_seconds();
 	grace_time = max(old_lease_time, lease_time);
 	if (reclaim_str_hashtbl_size == 0)
@@ -2799,6 +2850,9 @@ __nfs4_state_shutdown(void)
 			alloc_sowner, alloc_lsowner, free_sowner);
 	dprintk("NFSD: vfsopen %d vfsclose %d\n",
 			vfsopen, vfsclose);
+	dprintk("NFSD: alloc_delegation %d free_delegation %d\n",
+			alloc_delegation, free_delegation);
+
 }
 
 void