struct cma *cma = data;
unsigned long used;
- mutex_lock(&cma->lock);
+ spin_lock_irq(&cma->lock);
/* pages counter is smaller than sizeof(int) */
used = bitmap_weight(cma->bitmap, (int)cma_bitmap_maxno(cma));
- mutex_unlock(&cma->lock);
+ spin_unlock_irq(&cma->lock);
*val = (u64)used << cma->order_per_bit;
return 0;
unsigned long start, end = 0;
unsigned long bitmap_maxno = cma_bitmap_maxno(cma);
- mutex_lock(&cma->lock);
+ spin_lock_irq(&cma->lock);
for (;;) {
start = find_next_zero_bit(cma->bitmap, bitmap_maxno, end);
if (start >= bitmap_maxno)
end = find_next_bit(cma->bitmap, bitmap_maxno, start);
maxchunk = max(end - start, maxchunk);
}
- mutex_unlock(&cma->lock);
+ spin_unlock_irq(&cma->lock);
*val = (u64)maxchunk << cma->order_per_bit;
return 0;