return page;
}
-static inline int is_page_busy(struct dma_page *page)
+static inline bool is_page_busy(struct dma_page *page)
{
return page->in_use != 0;
}
{
bool empty = false;
+ if (unlikely(!pool))
+ return;
+
mutex_lock(&pools_reg_lock);
mutex_lock(&pools_lock);
list_del(&pool->pools);
/* pool_alloc_page() might sleep, so temporarily drop &pool->lock */
spin_unlock_irqrestore(&pool->lock, flags);
- page = pool_alloc_page(pool, mem_flags);
+ page = pool_alloc_page(pool, mem_flags & (~__GFP_ZERO));
if (!page)
return NULL;
break;
}
}
- memset(retval, POOL_POISON_ALLOCATED, pool->size);
+ if (!(mem_flags & __GFP_ZERO))
+ memset(retval, POOL_POISON_ALLOCATED, pool->size);
#endif
spin_unlock_irqrestore(&pool->lock, flags);
+
+ if (mem_flags & __GFP_ZERO)
+ memset(retval, 0, pool->size);
+
return retval;
}
EXPORT_SYMBOL(dma_pool_alloc);