diff options
Diffstat (limited to 'lib/genalloc.c')
| -rw-r--r-- | lib/genalloc.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/lib/genalloc.c b/lib/genalloc.c index d6d30d2e716..9ce0a6a3b85 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -95,12 +95,10 @@ unsigned long gen_pool_alloc(struct gen_pool *poolp, int size) if (size > max_chunk_size) return 0; - i = 0; - size = max(size, 1 << ALLOC_MIN_SHIFT); - s = roundup_pow_of_two(size); - - j = i; + i = fls(size - 1); + s = 1 << i; + j = i -= ALLOC_MIN_SHIFT; spin_lock_irqsave(&poolp->lock, flags); while (!h[j].next) { @@ -153,10 +151,10 @@ void gen_pool_free(struct gen_pool *poolp, unsigned long ptr, int size) if (size > max_chunk_size) return; - i = 0; - size = max(size, 1 << ALLOC_MIN_SHIFT); - s = roundup_pow_of_two(size); + i = fls(size - 1); + s = 1 << i; + i -= ALLOC_MIN_SHIFT; a = ptr; |