struct page *alloc_pages(int order)
{
lock(&memory_lock);
struct page* result = __alloc_pages(order, NT_HIGH);
unlock(&memory_lock);
return result;
}
struct page * alloc_pages_node(int nid, int gfp_mask, unsigned long order)
{
#ifdef CONFIG_NUMA
return __alloc_pages(NODE_DATA(nid)->node_zonelists + gfp_mask, order);
#else
return alloc_pages(gfp_mask, order);
#endif
}
struct page * alloc_pages_node(int nid, unsigned int gfp_mask, unsigned int order)
{
#ifdef CONFIG_NUMA
return __alloc_pages(gfp_mask, order, NODE_DATA(nid)->node_zonelists + (gfp_mask & GFP_ZONEMASK));
#else
return alloc_pages(gfp_mask, order);
#endif
}
static struct page *alloc_page_table(pte_t flags)
{
struct page *page =
(flags & PTE_LOW) ? __alloc_pages(0, NT_LOW) : alloc_pages(0);
if (page) {
memset(va(page_paddr(page)), 0, PAGE_SIZE);
page->u.refcount = 0;
}
return page;
}
static struct page * alloc_pages_pgdat(pg_data_t *pgdat, int gfp_mask,
unsigned long order)
{
return __alloc_pages(pgdat->node_zonelists + gfp_mask, order);
}
/**
* @brief Allocate n continuous pages.
*
* @return
* NULL if n contiguous pages could not be found
* 0 otherwise
*/
struct page *alloc_pages(unsigned long n)
{
TRACE("n=%d", n);
ASSERT_NOTEQUALS(n, 0);
return __alloc_pages(n, zones);
}
T* alloc_pages(unsigned nr_pages)
{
return reinterpret_cast<T*>(__alloc_pages(nr_pages));
}
static struct page * alloc_pages_pgdat(pg_data_t *pgdat, unsigned int gfp_mask,
unsigned int order)
{
return __alloc_pages(gfp_mask, order, pgdat->node_zonelists + (gfp_mask & GFP_ZONEMASK));
}