linux/mm/hugetlb_cma.h
Kefeng Wang 4a25f995bd mm: hugetlb: directly pass order when allocate a hugetlb folio
Use order instead of struct hstate to remove huge_page_order() call from
all hugetlb folio allocation, also order_is_gigantic() is added to check
whether it is a gigantic order.

Link: https://lkml.kernel.org/r/20250910133958.301467-4-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Jane Chu <jane.chu@oracle.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-09-21 14:22:11 -07:00

57 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_HUGETLB_CMA_H
#define _LINUX_HUGETLB_CMA_H
#ifdef CONFIG_CMA
void hugetlb_cma_free_folio(struct folio *folio);
struct folio *hugetlb_cma_alloc_folio(int order, gfp_t gfp_mask,
int nid, nodemask_t *nodemask);
struct huge_bootmem_page *hugetlb_cma_alloc_bootmem(struct hstate *h, int *nid,
bool node_exact);
void hugetlb_cma_check(void);
bool hugetlb_cma_exclusive_alloc(void);
unsigned long hugetlb_cma_total_size(void);
void hugetlb_cma_validate_params(void);
bool hugetlb_early_cma(struct hstate *h);
#else
static inline void hugetlb_cma_free_folio(struct folio *folio)
{
}
static inline struct folio *hugetlb_cma_alloc_folio(int order, gfp_t gfp_mask,
int nid, nodemask_t *nodemask)
{
return NULL;
}
static inline
struct huge_bootmem_page *hugetlb_cma_alloc_bootmem(struct hstate *h, int *nid,
bool node_exact)
{
return NULL;
}
static inline void hugetlb_cma_check(void)
{
}
static inline bool hugetlb_cma_exclusive_alloc(void)
{
return false;
}
static inline unsigned long hugetlb_cma_total_size(void)
{
return 0;
}
static inline void hugetlb_cma_validate_params(void)
{
}
static inline bool hugetlb_early_cma(struct hstate *h)
{
return false;
}
#endif
#endif