* to the persistent bitmaps in dmaps) is guarded by (busy) buffers.
*/
-#define BMAP_LOCK_INIT(bmp) init_MUTEX(&bmp->db_bmaplock)
-#define BMAP_LOCK(bmp) down(&bmp->db_bmaplock)
-#define BMAP_UNLOCK(bmp) up(&bmp->db_bmaplock)
+#define BMAP_LOCK_INIT(bmp) mutex_init(&bmp->db_bmaplock)
+#define BMAP_LOCK(bmp) mutex_lock(&bmp->db_bmaplock)
+#define BMAP_UNLOCK(bmp) mutex_unlock(&bmp->db_bmaplock)
/*
* forward references
* into the table, with the table elements yielding the maximum
* binary buddy of free bits within the character.
*/
-static s8 budtab[256] = {
+static const s8 budtab[256] = {
3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,