Contributors: 17
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Mel Gorman |
120 |
41.81% |
6 |
22.22% |
| Zi Yan |
54 |
18.82% |
3 |
11.11% |
| David Rientjes |
27 |
9.41% |
1 |
3.70% |
| Kefeng Wang |
16 |
5.57% |
3 |
11.11% |
| Kamezawa Hiroyuki |
14 |
4.88% |
1 |
3.70% |
| Vlastimil Babka |
12 |
4.18% |
1 |
3.70% |
| Baolin Wang |
12 |
4.18% |
1 |
3.70% |
| Michal Nazarewicz |
6 |
2.09% |
1 |
3.70% |
| Wei Yang |
6 |
2.09% |
1 |
3.70% |
| Fengguang Wu |
5 |
1.74% |
1 |
3.70% |
| Linus Torvalds (pre-git) |
4 |
1.39% |
1 |
3.70% |
| MinChan Kim |
3 |
1.05% |
1 |
3.70% |
| Matthew Wilcox |
3 |
1.05% |
2 |
7.41% |
| Thomas Gleixner |
2 |
0.70% |
1 |
3.70% |
| Paul Jackson |
1 |
0.35% |
1 |
3.70% |
| David Hildenbrand |
1 |
0.35% |
1 |
3.70% |
| Kirill A. Shutemov |
1 |
0.35% |
1 |
3.70% |
| Total |
287 |
|
27 |
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Macros for manipulating and testing flags related to a
* pageblock_nr_pages number of pages.
*
* Copyright (C) IBM Corporation, 2006
*
* Original author, Mel Gorman
* Major cleanups and reduction of bit operations, Andy Whitcroft
*/
#ifndef PAGEBLOCK_FLAGS_H
#define PAGEBLOCK_FLAGS_H
#include <linux/types.h>
/* Bit indices that affect a whole block of pages */
enum pageblock_bits {
PB_migrate_0,
PB_migrate_1,
PB_migrate_2,
PB_compact_skip,/* If set the block is skipped by compaction */
#ifdef CONFIG_MEMORY_ISOLATION
/*
* Pageblock isolation is represented with a separate bit, so that
* the migratetype of a block is not overwritten by isolation.
*/
PB_migrate_isolate, /* If set the block is isolated */
#endif
/*
* Assume the bits will always align on a word. If this assumption
* changes then get/set pageblock needs updating.
*/
__NR_PAGEBLOCK_BITS
};
#define NR_PAGEBLOCK_BITS (roundup_pow_of_two(__NR_PAGEBLOCK_BITS))
#define MIGRATETYPE_MASK (BIT(PB_migrate_0)|BIT(PB_migrate_1)|BIT(PB_migrate_2))
#ifdef CONFIG_MEMORY_ISOLATION
#define MIGRATETYPE_AND_ISO_MASK (MIGRATETYPE_MASK | BIT(PB_migrate_isolate))
#else
#define MIGRATETYPE_AND_ISO_MASK MIGRATETYPE_MASK
#endif
#if defined(CONFIG_HUGETLB_PAGE)
#ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE
/* Huge page sizes are variable */
extern unsigned int pageblock_order;
#else /* CONFIG_HUGETLB_PAGE_SIZE_VARIABLE */
/*
* Huge pages are a constant size, but don't exceed the maximum allocation
* granularity.
*/
#define pageblock_order MIN_T(unsigned int, HUGETLB_PAGE_ORDER, PAGE_BLOCK_MAX_ORDER)
#endif /* CONFIG_HUGETLB_PAGE_SIZE_VARIABLE */
#elif defined(CONFIG_TRANSPARENT_HUGEPAGE)
#define pageblock_order MIN_T(unsigned int, HPAGE_PMD_ORDER, PAGE_BLOCK_MAX_ORDER)
#else /* CONFIG_TRANSPARENT_HUGEPAGE */
/* If huge pages are not used, group by PAGE_BLOCK_MAX_ORDER */
#define pageblock_order PAGE_BLOCK_MAX_ORDER
#endif /* CONFIG_HUGETLB_PAGE */
#define pageblock_nr_pages (1UL << pageblock_order)
#define pageblock_align(pfn) ALIGN((pfn), pageblock_nr_pages)
#define pageblock_aligned(pfn) IS_ALIGNED((pfn), pageblock_nr_pages)
#define pageblock_start_pfn(pfn) ALIGN_DOWN((pfn), pageblock_nr_pages)
#define pageblock_end_pfn(pfn) ALIGN((pfn) + 1, pageblock_nr_pages)
/* Forward declaration */
struct page;
enum migratetype get_pfnblock_migratetype(const struct page *page,
unsigned long pfn);
bool get_pfnblock_bit(const struct page *page, unsigned long pfn,
enum pageblock_bits pb_bit);
void set_pfnblock_bit(const struct page *page, unsigned long pfn,
enum pageblock_bits pb_bit);
void clear_pfnblock_bit(const struct page *page, unsigned long pfn,
enum pageblock_bits pb_bit);
/* Declarations for getting and setting flags. See mm/page_alloc.c */
#ifdef CONFIG_COMPACTION
#define get_pageblock_skip(page) \
get_pfnblock_bit(page, page_to_pfn(page), PB_compact_skip)
#define clear_pageblock_skip(page) \
clear_pfnblock_bit(page, page_to_pfn(page), PB_compact_skip)
#define set_pageblock_skip(page) \
set_pfnblock_bit(page, page_to_pfn(page), PB_compact_skip)
#else
static inline bool get_pageblock_skip(struct page *page)
{
return false;
}
static inline void clear_pageblock_skip(struct page *page)
{
}
static inline void set_pageblock_skip(struct page *page)
{
}
#endif /* CONFIG_COMPACTION */
#endif /* PAGEBLOCK_FLAGS_H */