mirror of
https://github.com/torvalds/linux.git
synced 2025-10-31 16:48:26 +02:00
47010c040d
The word of "free" is not expressive enough to express the feature of optimizing vmemmap pages associated with each HugeTLB, rename this keywork to "optimize". In this patch , cheanup configs to make code more expressive. Link: https://lkml.kernel.org/r/20220404074652.68024-4-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Optimize vmemmap pages associated with HugeTLB
|
|
*
|
|
* Copyright (c) 2020, Bytedance. All rights reserved.
|
|
*
|
|
* Author: Muchun Song <songmuchun@bytedance.com>
|
|
*/
|
|
#ifndef _LINUX_HUGETLB_VMEMMAP_H
|
|
#define _LINUX_HUGETLB_VMEMMAP_H
|
|
#include <linux/hugetlb.h>
|
|
|
|
#ifdef CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
|
|
int hugetlb_vmemmap_alloc(struct hstate *h, struct page *head);
|
|
void hugetlb_vmemmap_free(struct hstate *h, struct page *head);
|
|
void hugetlb_vmemmap_init(struct hstate *h);
|
|
|
|
/*
|
|
* How many vmemmap pages associated with a HugeTLB page that can be
|
|
* optimized and freed to the buddy allocator.
|
|
*/
|
|
static inline unsigned int hugetlb_optimize_vmemmap_pages(struct hstate *h)
|
|
{
|
|
return h->optimize_vmemmap_pages;
|
|
}
|
|
#else
|
|
static inline int hugetlb_vmemmap_alloc(struct hstate *h, struct page *head)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void hugetlb_vmemmap_free(struct hstate *h, struct page *head)
|
|
{
|
|
}
|
|
|
|
static inline void hugetlb_vmemmap_init(struct hstate *h)
|
|
{
|
|
}
|
|
|
|
static inline unsigned int hugetlb_optimize_vmemmap_pages(struct hstate *h)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP */
|
|
#endif /* _LINUX_HUGETLB_VMEMMAP_H */
|