50 tmpfs_mntmem_init(struct tmpfs_mount *mp, uint64_t memlimit)  in tmpfs_mntmem_init()  argument
53 	rw_init(&mp->tm_acc_lock, "tacclk");  in tmpfs_mntmem_init()
54 	mp->tm_mem_limit = memlimit;  in tmpfs_mntmem_init()
55 	mp->tm_bytes_used = 0;  in tmpfs_mntmem_init()
59 tmpfs_mntmem_destroy(struct tmpfs_mount *mp)  in tmpfs_mntmem_destroy()  argument
62 	KASSERT(mp->tm_bytes_used == 0);  in tmpfs_mntmem_destroy()
100 tmpfs_bytes_max(struct tmpfs_mount *mp)  in tmpfs_bytes_max()  argument
110 	avail_mem = round_page(mp->tm_bytes_used) + (freepages << PAGE_SHIFT);  in tmpfs_bytes_max()
111 	return MIN(mp->tm_mem_limit, avail_mem);  in tmpfs_bytes_max()
115 tmpfs_pages_avail(struct tmpfs_mount *mp)  in tmpfs_pages_avail()  argument
118 	return (tmpfs_bytes_max(mp) - mp->tm_bytes_used) >> PAGE_SHIFT;  in tmpfs_pages_avail()
122 tmpfs_mem_incr(struct tmpfs_mount *mp, size_t sz)  in tmpfs_mem_incr()  argument
126 	rw_enter_write(&mp->tm_acc_lock);  in tmpfs_mem_incr()
127 	lim = tmpfs_bytes_max(mp);  in tmpfs_mem_incr()
128 	if (mp->tm_bytes_used + sz >= lim) {  in tmpfs_mem_incr()
129 		rw_exit_write(&mp->tm_acc_lock);  in tmpfs_mem_incr()
132 	mp->tm_bytes_used += sz;  in tmpfs_mem_incr()
133 	rw_exit_write(&mp->tm_acc_lock);  in tmpfs_mem_incr()
138 tmpfs_mem_decr(struct tmpfs_mount *mp, size_t sz)  in tmpfs_mem_decr()  argument
141 	rw_enter_write(&mp->tm_acc_lock);  in tmpfs_mem_decr()
142 	KASSERT(mp->tm_bytes_used >= sz);  in tmpfs_mem_decr()
143 	mp->tm_bytes_used -= sz;  in tmpfs_mem_decr()
144 	rw_exit_write(&mp->tm_acc_lock);  in tmpfs_mem_decr()
148 tmpfs_dirent_get(struct tmpfs_mount *mp)  in tmpfs_dirent_get()  argument
151 	if (!tmpfs_mem_incr(mp, sizeof(struct tmpfs_dirent))) {  in tmpfs_dirent_get()
158 tmpfs_dirent_put(struct tmpfs_mount *mp, struct tmpfs_dirent *de)  in tmpfs_dirent_put()  argument
161 	tmpfs_mem_decr(mp, sizeof(struct tmpfs_dirent));  in tmpfs_dirent_put()
166 tmpfs_node_get(struct tmpfs_mount *mp)  in tmpfs_node_get()  argument
169 	mp->tm_nodes_cnt++;  in tmpfs_node_get()
170 	if (mp->tm_nodes_cnt > mp->tm_nodes_max) {  in tmpfs_node_get()
171 		mp->tm_nodes_cnt--;  in tmpfs_node_get()
174 	if (!tmpfs_mem_incr(mp, sizeof(struct tmpfs_node))) {  in tmpfs_node_get()
181 tmpfs_node_put(struct tmpfs_mount *mp, struct tmpfs_node *tn)  in tmpfs_node_put()  argument
184 	mp->tm_nodes_cnt--;  in tmpfs_node_put()
185 	tmpfs_mem_decr(mp, sizeof(struct tmpfs_node));  in tmpfs_node_put()
197 tmpfs_strname_alloc(struct tmpfs_mount *mp, size_t len)  in tmpfs_strname_alloc()  argument
202 	if (!tmpfs_mem_incr(mp, sz)) {  in tmpfs_strname_alloc()
209 tmpfs_strname_free(struct tmpfs_mount *mp, char *str, size_t len)  in tmpfs_strname_free()  argument
214 	tmpfs_mem_decr(mp, sz);  in tmpfs_strname_free()