#include <limits.h>
#include "mutex.h"
+#include "arch/arch.h"
#define MP_SAFE /* define to make thread safe */
#define SMALLOC_REDZONE /* define to detect memory corruption */
blocks_iter(pool, pool_idx, idx, nr_blocks, mask_clear);
}
-static inline int __ffs(int word)
-{
- int r = 0;
-
- if (!(word & 0xffff)) {
- word >>= 16;
- r += 16;
- }
- if (!(word & 0xff)) {
- word >>= 8;
- r += 8;
- }
- if (!(word & 0xf)) {
- word >>= 4;
- r += 4;
- }
- if (!(word & 3)) {
- word >>= 2;
- r += 2;
- }
- if (!(word & 1)) {
- word >>= 1;
- r += 1;
- }
-
- return r;
-}
-
static int find_next_zero(int word, int start)
{
assert(word != -1U);
word >>= (start + 1);
- return __ffs(~word) + start + 1;
+ return ffz(word) + start + 1;
}
static int add_pool(struct pool *pool, unsigned int alloc_size)