mirror of
https://github.com/torvalds/linux.git
synced 2026-03-07 23:04:33 +01:00
14f270761d
alloc_gigantic_folio() allocates a folio with refcount increated and then
freeze it, convert to allocate a frozen folio to remove the atomic
operation about folio refcount, and saving atomic operation during
__update_and_free_hugetlb_folio() too.
Besides, rename hugetlb_cma_{alloc,free}_folio(), alloc_gigantic_folio()
and alloc_buddy_hugetlb_folio() with frozen which make them more
self-explanatory.
Link: https://lkml.kernel.org/r/20260109093136.1491549-7-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
52 lines
1.2 KiB
C
52 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_frozen_folio(struct folio *folio);
|
|
struct folio *hugetlb_cma_alloc_frozen_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);
|
|
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_frozen_folio(struct folio *folio)
|
|
{
|
|
}
|
|
|
|
static inline struct folio *hugetlb_cma_alloc_frozen_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 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
|