Contributors: 16
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Mel Gorman |
116 |
49.36% |
6 |
24.00% |
| David Rientjes |
27 |
11.49% |
1 |
4.00% |
| Kefeng Wang |
16 |
6.81% |
3 |
12.00% |
| Kamezawa Hiroyuki |
15 |
6.38% |
1 |
4.00% |
| Vlastimil Babka |
12 |
5.11% |
1 |
4.00% |
| Baolin Wang |
12 |
5.11% |
1 |
4.00% |
| Linus Torvalds (pre-git) |
8 |
3.40% |
2 |
8.00% |
| Paul Jackson |
7 |
2.98% |
1 |
4.00% |
| Michal Nazarewicz |
6 |
2.55% |
1 |
4.00% |
| Liu Ping Fan |
5 |
2.13% |
1 |
4.00% |
| Wei Yang |
3 |
1.28% |
1 |
4.00% |
| Thomas Gleixner |
2 |
0.85% |
1 |
4.00% |
| Kirill A. Shutemov |
2 |
0.85% |
2 |
8.00% |
| Linus Torvalds |
2 |
0.85% |
1 |
4.00% |
| David Hildenbrand |
1 |
0.43% |
1 |
4.00% |
| Matthew Wilcox |
1 |
0.43% |
1 |
4.00% |
| Total |
235 |
|
25 |
|
/* 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>
#define PB_migratetype_bits 3
/* Bit indices that affect a whole block of pages */
enum pageblock_bits {
PB_migrate,
PB_migrate_end = PB_migrate + PB_migratetype_bits - 1,
/* 3 bits required for migrate types */
PB_migrate_skip,/* If set the block is skipped by compaction */
/*
* Assume the bits will always align on a word. If this assumption
* changes then get/set pageblock needs updating.
*/
NR_PAGEBLOCK_BITS
};
#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, MAX_PAGE_ORDER)
#endif /* CONFIG_HUGETLB_PAGE_SIZE_VARIABLE */
#elif defined(CONFIG_TRANSPARENT_HUGEPAGE)
#define pageblock_order MIN_T(unsigned int, HPAGE_PMD_ORDER, MAX_PAGE_ORDER)
#else /* CONFIG_TRANSPARENT_HUGEPAGE */
/* If huge pages are not used, group by MAX_ORDER_NR_PAGES */
#define pageblock_order MAX_PAGE_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;
unsigned long get_pfnblock_flags_mask(const struct page *page,
unsigned long pfn,
unsigned long mask);
void set_pfnblock_flags_mask(struct page *page,
unsigned long flags,
unsigned long pfn,
unsigned long mask);
/* Declarations for getting and setting flags. See mm/page_alloc.c */
#ifdef CONFIG_COMPACTION
#define get_pageblock_skip(page) \
get_pfnblock_flags_mask(page, page_to_pfn(page), \
(1 << (PB_migrate_skip)))
#define clear_pageblock_skip(page) \
set_pfnblock_flags_mask(page, 0, page_to_pfn(page), \
(1 << PB_migrate_skip))
#define set_pageblock_skip(page) \
set_pfnblock_flags_mask(page, (1 << PB_migrate_skip), \
page_to_pfn(page), \
(1 << PB_migrate_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 */