*/
/* recall_lock protects the del_recall_lru */
-static spinlock_t recall_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(recall_lock);
static struct list_head del_recall_lru;
static void
kref_get(&fi->fi_ref);
}
+static int num_delegations;
+
+/*
+ * Open owner state (share locks)
+ */
+
+/* hash tables for nfs4_stateowner */
+#define OWNER_HASH_BITS 8
+#define OWNER_HASH_SIZE (1 << OWNER_HASH_BITS)
+#define OWNER_HASH_MASK (OWNER_HASH_SIZE - 1)
+
+#define ownerid_hashval(id) \
+ ((id) & OWNER_HASH_MASK)
+#define ownerstr_hashval(clientid, ownername) \
+ (((clientid) + opaque_hashval((ownername.data), (ownername.len))) & OWNER_HASH_MASK)
+
+static struct list_head ownerid_hashtbl[OWNER_HASH_SIZE];
+static struct list_head ownerstr_hashtbl[OWNER_HASH_SIZE];
+
+/* hash table for nfs4_file */
+#define FILE_HASH_BITS 8
+#define FILE_HASH_SIZE (1 << FILE_HASH_BITS)
+#define FILE_HASH_MASK (FILE_HASH_SIZE - 1)
+/* hash table for (open)nfs4_stateid */
+#define STATEID_HASH_BITS 10
+#define STATEID_HASH_SIZE (1 << STATEID_HASH_BITS)
+#define STATEID_HASH_MASK (STATEID_HASH_SIZE - 1)
+
+#define file_hashval(x) \
+ hash_ptr(x, FILE_HASH_BITS)
+#define stateid_hashval(owner_id, file_id) \
+ (((owner_id) + (file_id)) & STATEID_HASH_MASK)
+
+static struct list_head file_hashtbl[FILE_HASH_SIZE];
+static struct list_head stateid_hashtbl[STATEID_HASH_SIZE];
+
static struct nfs4_delegation *
alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_fh *current_fh, u32 type)
{
struct nfs4_callback *cb = &stp->st_stateowner->so_client->cl_callback;
dprintk("NFSD alloc_init_deleg\n");
+ if (num_delegations > STATEID_HASH_SIZE * 4)
+ return NULL;
dp = kmem_cache_alloc(deleg_slab, GFP_KERNEL);
if (dp == NULL)
return dp;
+ num_delegations++;
INIT_LIST_HEAD(&dp->dl_perfile);
INIT_LIST_HEAD(&dp->dl_perclnt);
INIT_LIST_HEAD(&dp->dl_recall_lru);
dprintk("NFSD: freeing dp %p\n",dp);
put_nfs4_file(dp->dl_file);
kmem_cache_free(deleg_slab, dp);
+ num_delegations--;
}
}
{
struct nfs4_client *clp;
- if ((clp = kmalloc(sizeof(struct nfs4_client), GFP_KERNEL))!= NULL) {
- memset(clp, 0, sizeof(*clp));
+ if ((clp = kzalloc(sizeof(struct nfs4_client), GFP_KERNEL))!= NULL) {
if ((clp->cl_name.data = kmalloc(name.len, GFP_KERNEL)) != NULL) {
memcpy(clp->cl_name.data, name.data, name.len);
clp->cl_name.len = name.len;
free_client(clp);
}
+static void
+shutdown_callback_client(struct nfs4_client *clp)
+{
+ struct rpc_clnt *clnt = clp->cl_callback.cb_client;
+
+ /* shutdown rpc client, ending any outstanding recall rpcs */
+ if (clnt) {
+ clp->cl_callback.cb_client = NULL;
+ rpc_shutdown_client(clnt);
+ rpciod_down();
+ }
+}
+
static void
expire_client(struct nfs4_client *clp)
{
struct nfs4_stateowner *sop;
struct nfs4_delegation *dp;
- struct nfs4_callback *cb = &clp->cl_callback;
- struct rpc_clnt *clnt = clp->cl_callback.cb_client;
struct list_head reaplist;
dprintk("NFSD: expire_client cl_count %d\n",
atomic_read(&clp->cl_count));
- /* shutdown rpc client, ending any outstanding recall rpcs */
- if (atomic_read(&cb->cb_set) == 1 && clnt) {
- rpc_shutdown_client(clnt);
- clnt = clp->cl_callback.cb_client = NULL;
- }
+ shutdown_callback_client(clp);
INIT_LIST_HEAD(&reaplist);
spin_lock(&recall_lock);
dprintk("NFSD: move_to_confirm nfs4_client %p\n", clp);
list_del_init(&clp->cl_strhash);
- list_del_init(&clp->cl_idhash);
- list_add(&clp->cl_idhash, &conf_id_hashtbl[idhashval]);
+ list_move(&clp->cl_idhash, &conf_id_hashtbl[idhashval]);
strhashval = clientstr_hashval(clp->cl_recdir);
list_add(&clp->cl_strhash, &conf_str_hashtbl[strhashval]);
renew_client(clp);
return status;
}
-/*
- * Open owner state (share locks)
- */
-
-/* hash tables for nfs4_stateowner */
-#define OWNER_HASH_BITS 8
-#define OWNER_HASH_SIZE (1 << OWNER_HASH_BITS)
-#define OWNER_HASH_MASK (OWNER_HASH_SIZE - 1)
-
-#define ownerid_hashval(id) \
- ((id) & OWNER_HASH_MASK)
-#define ownerstr_hashval(clientid, ownername) \
- (((clientid) + opaque_hashval((ownername.data), (ownername.len))) & OWNER_HASH_MASK)
-
-static struct list_head ownerid_hashtbl[OWNER_HASH_SIZE];
-static struct list_head ownerstr_hashtbl[OWNER_HASH_SIZE];
-
-/* hash table for nfs4_file */
-#define FILE_HASH_BITS 8
-#define FILE_HASH_SIZE (1 << FILE_HASH_BITS)
-#define FILE_HASH_MASK (FILE_HASH_SIZE - 1)
-/* hash table for (open)nfs4_stateid */
-#define STATEID_HASH_BITS 10
-#define STATEID_HASH_SIZE (1 << STATEID_HASH_BITS)
-#define STATEID_HASH_MASK (STATEID_HASH_SIZE - 1)
-
-#define file_hashval(x) \
- hash_ptr(x, FILE_HASH_BITS)
-#define stateid_hashval(owner_id, file_id) \
- (((owner_id) + (file_id)) & STATEID_HASH_MASK)
-
-static struct list_head file_hashtbl[FILE_HASH_SIZE];
-static struct list_head stateid_hashtbl[STATEID_HASH_SIZE];
-
/* OPEN Share state helper functions */
static inline struct nfs4_file *
alloc_init_file(struct inode *ino)
static void
nfsd4_free_slab(kmem_cache_t **slab)
{
- int status;
-
if (*slab == NULL)
return;
- status = kmem_cache_destroy(*slab);
+ kmem_cache_destroy(*slab);
*slab = NULL;
- WARN_ON(status);
}
static void
{
dprintk("NFSD: move_to_close_lru nfs4_stateowner %p\n", sop);
- unhash_stateowner(sop);
- list_add_tail(&sop->so_close_lru, &close_lru);
+ list_move_tail(&sop->so_close_lru, &close_lru);
sop->so_time = get_seconds();
}
return NULL;
}
-#define TEST_ACCESS(x) ((x > 0 || x < 4)?1:0)
-#define TEST_DENY(x) ((x >= 0 || x < 5)?1:0)
+static int access_valid(u32 x)
+{
+ return (x > 0 && x < 4);
+}
+
+static int deny_valid(u32 x)
+{
+ return (x >= 0 && x < 5);
+}
static void
set_access(unsigned int *access, unsigned long bmap) {
int status;
status = nfserr_inval;
- if (!TEST_ACCESS(open->op_share_access) || !TEST_DENY(open->op_share_deny))
+ if (!access_valid(open->op_share_access)
+ || !deny_valid(open->op_share_deny))
goto out;
/*
* Lookup file; if found, lookup stateid and check open request,
} else {
/* Stateid was not found, this is a new OPEN */
int flags = 0;
+ if (open->op_share_access & NFS4_SHARE_ACCESS_READ)
+ flags |= MAY_READ;
if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
- flags = MAY_WRITE;
- else
- flags = MAY_READ;
+ flags |= MAY_WRITE;
status = nfs4_new_open(rqstp, &stp, dp, current_fh, flags);
if (status)
goto out;
}
dprintk("NFSD: purging unused open stateowner (so_id %d)\n",
sop->so_id);
- list_del(&sop->so_close_lru);
- nfs4_put_stateowner(sop);
+ release_stateowner(sop);
}
if (clientid_val < NFSD_LAUNDROMAT_MINTIMEOUT)
clientid_val = NFSD_LAUNDROMAT_MINTIMEOUT;
if (!stateid->si_fileid) { /* delegation stateid */
if(!(dp = find_delegation_stateid(ino, stateid))) {
dprintk("NFSD: delegation stateid not found\n");
- if (nfs4_in_grace())
- status = nfserr_grace;
goto out;
}
stidp = &dp->dl_stateid;
} else { /* open or lock stateid */
if (!(stp = find_stateid(stateid, flags))) {
dprintk("NFSD: open or lock stateid not found\n");
- if (nfs4_in_grace())
- status = nfserr_grace;
goto out;
}
if ((flags & CHECK_FH) && nfs4_check_fh(current_fh, stp))
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
- if ((status = fh_verify(rqstp, current_fh, S_IFREG, 0)))
- goto out;
+ status = fh_verify(rqstp, current_fh, S_IFREG, 0);
+ if (status)
+ return status;
nfs4_lock_state();
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
- if (!TEST_ACCESS(od->od_share_access) || !TEST_DENY(od->od_share_deny))
+ if (!access_valid(od->od_share_access)
+ || !deny_valid(od->od_share_deny))
return nfserr_inval;
nfs4_lock_state();
/* Hack!: For now, we're defining this just so we can use a pointer to it
* as a unique cookie to identify our (NFSv4's) posix locks. */
-struct lock_manager_operations nfsd_posix_mng_ops = {
+static struct lock_manager_operations nfsd_posix_mng_ops = {
};
static inline void
int i;
struct nfs4_client *clp = NULL;
struct nfs4_delegation *dp = NULL;
- struct nfs4_stateowner *sop = NULL;
struct list_head *pos, *next, reaplist;
- list_for_each_safe(pos, next, &close_lru) {
- sop = list_entry(pos, struct nfs4_stateowner, so_close_lru);
- list_del(&sop->so_close_lru);
- nfs4_put_stateowner(sop);
- }
-
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
while (!list_empty(&conf_id_hashtbl[i])) {
clp = list_entry(conf_id_hashtbl[i].next, struct nfs4_client, cl_idhash);
}
cancel_delayed_work(&laundromat_work);
- flush_workqueue(laundry_wq);
- destroy_workqueue(laundry_wq);
nfsd4_shutdown_recdir();
nfs4_init = 0;
}
void
nfs4_state_shutdown(void)
{
+ cancel_rearming_delayed_workqueue(laundry_wq, &laundromat_work);
+ destroy_workqueue(laundry_wq);
nfs4_lock_state();
nfs4_release_reclaim();
__nfs4_state_shutdown();
git.openpandora.org / pandora-kernel.git / blobdiff