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mm/internal.h
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/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* internal.h: mm/ internal definitions * * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) |
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*/ |
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#ifndef __MM_INTERNAL_H #define __MM_INTERNAL_H |
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#include <linux/fs.h> |
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#include <linux/mm.h> |
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#include <linux/pagemap.h> |
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#include <linux/tracepoint-defs.h> |
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/* * The set of flags that only affect watermark checking and reclaim * behaviour. This is used by the MM to obey the caller constraints * about IO, FS and watermark checking while ignoring placement * hints such as HIGHMEM usage. */ #define GFP_RECLAIM_MASK (__GFP_RECLAIM|__GFP_HIGH|__GFP_IO|__GFP_FS|\ |
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__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_NOFAIL|\ |
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__GFP_NORETRY|__GFP_MEMALLOC|__GFP_NOMEMALLOC|\ __GFP_ATOMIC) |
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/* The GFP flags allowed during early boot */ #define GFP_BOOT_MASK (__GFP_BITS_MASK & ~(__GFP_RECLAIM|__GFP_IO|__GFP_FS)) /* Control allocation cpuset and node placement constraints */ #define GFP_CONSTRAINT_MASK (__GFP_HARDWALL|__GFP_THISNODE) /* Do not use these with a slab allocator */ #define GFP_SLAB_BUG_MASK (__GFP_DMA32|__GFP_HIGHMEM|~__GFP_BITS_MASK) |
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void page_writeback_init(void); |
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vm_fault_t do_swap_page(struct vm_fault *vmf); |
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void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma, unsigned long floor, unsigned long ceiling); |
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static inline bool can_madv_lru_vma(struct vm_area_struct *vma) |
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{ return !(vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP)); } |
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void unmap_page_range(struct mmu_gather *tlb, struct vm_area_struct *vma, unsigned long addr, unsigned long end, struct zap_details *details); |
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void do_page_cache_ra(struct readahead_control *, unsigned long nr_to_read, unsigned long lookahead_size); |
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void force_page_cache_ra(struct readahead_control *, unsigned long nr); |
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static inline void force_page_cache_readahead(struct address_space *mapping, struct file *file, pgoff_t index, unsigned long nr_to_read) { |
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DEFINE_READAHEAD(ractl, file, &file->f_ra, mapping, index); force_page_cache_ra(&ractl, nr_to_read); |
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} |
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unsigned find_lock_entries(struct address_space *mapping, pgoff_t start, pgoff_t end, struct pagevec *pvec, pgoff_t *indices); |
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/** * page_evictable - test whether a page is evictable * @page: the page to test * * Test whether page is evictable--i.e., should be placed on active/inactive * lists vs unevictable list. * * Reasons page might not be evictable: * (1) page's mapping marked unevictable * (2) page is part of an mlocked VMA * */ static inline bool page_evictable(struct page *page) { bool ret; /* Prevent address_space of inode and swap cache from being freed */ rcu_read_lock(); ret = !mapping_unevictable(page_mapping(page)) && !PageMlocked(page); rcu_read_unlock(); return ret; } |
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/* |
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* Turn a non-refcounted page (->_refcount == 0) into refcounted with |
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* a count of one. */ static inline void set_page_refcounted(struct page *page) { |
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VM_BUG_ON_PAGE(PageTail(page), page); |
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VM_BUG_ON_PAGE(page_ref_count(page), page); |
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set_page_count(page, 1); |
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} |
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extern unsigned long highest_memmap_pfn; |
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/* |
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* Maximum number of reclaim retries without progress before the OOM * killer is consider the only way forward. */ #define MAX_RECLAIM_RETRIES 16 /* |
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* in mm/vmscan.c: */ |
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extern int isolate_lru_page(struct page *page); |
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extern void putback_lru_page(struct page *page); |
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|
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/* |
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* in mm/rmap.c: */ extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address); /* |
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* in mm/memcontrol.c: */ extern bool cgroup_memory_nokmem; /* |
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* in mm/page_alloc.c */ |
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/* |
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* Structure for holding the mostly immutable allocation parameters passed * between functions involved in allocations, including the alloc_pages* * family of functions. * |
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* nodemask, migratetype and highest_zoneidx are initialized only once in |
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* __alloc_pages() and then never change. |
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* |
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* zonelist, preferred_zone and highest_zoneidx are set first in |
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* __alloc_pages() for the fast path, and might be later changed |
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* in __alloc_pages_slowpath(). All other functions pass the whole structure |
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* by a const pointer. */ struct alloc_context { struct zonelist *zonelist; nodemask_t *nodemask; |
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struct zoneref *preferred_zoneref; |
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int migratetype; |
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/* * highest_zoneidx represents highest usable zone index of * the allocation request. Due to the nature of the zone, * memory on lower zone than the highest_zoneidx will be * protected by lowmem_reserve[highest_zoneidx]. * * highest_zoneidx is also used by reclaim/compaction to limit * the target zone since higher zone than this index cannot be * usable for this allocation request. */ enum zone_type highest_zoneidx; |
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bool spread_dirty_pages; |
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}; /* |
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* Locate the struct page for both the matching buddy in our * pair (buddy1) and the combined O(n+1) page they form (page). * * 1) Any buddy B1 will have an order O twin B2 which satisfies * the following equation: * B2 = B1 ^ (1 << O) * For example, if the starting buddy (buddy2) is #8 its order * 1 buddy is #10: * B2 = 8 ^ (1 << 1) = 8 ^ 2 = 10 * * 2) Any buddy B will have an order O+1 parent P which * satisfies the following equation: * P = B & ~(1 << O) * * Assumption: *_mem_map is contiguous at least up to MAX_ORDER */ static inline unsigned long |
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__find_buddy_pfn(unsigned long page_pfn, unsigned int order) |
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{ |
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return page_pfn ^ (1 << order); |
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} |
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extern struct page *__pageblock_pfn_to_page(unsigned long start_pfn, unsigned long end_pfn, struct zone *zone); static inline struct page *pageblock_pfn_to_page(unsigned long start_pfn, unsigned long end_pfn, struct zone *zone) { if (zone->contiguous) return pfn_to_page(start_pfn); return __pageblock_pfn_to_page(start_pfn, end_pfn, zone); } |
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extern int __isolate_free_page(struct page *page, unsigned int order); |
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extern void __putback_isolated_page(struct page *page, unsigned int order, int mt); |
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extern void memblock_free_pages(struct page *page, unsigned long pfn, |
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unsigned int order); |
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extern void __free_pages_core(struct page *page, unsigned int order); |
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extern void prep_compound_page(struct page *page, unsigned int order); |
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extern void post_alloc_hook(struct page *page, unsigned int order, gfp_t gfp_flags); |
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extern int user_min_free_kbytes; |
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|
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extern void free_unref_page(struct page *page, unsigned int order); |
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extern void free_unref_page_list(struct list_head *list); |
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extern void zone_pcp_update(struct zone *zone, int cpu_online); |
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extern void zone_pcp_reset(struct zone *zone); |
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extern void zone_pcp_disable(struct zone *zone); extern void zone_pcp_enable(struct zone *zone); |
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|
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extern void *memmap_alloc(phys_addr_t size, phys_addr_t align, phys_addr_t min_addr, int nid, bool exact_nid); |
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#if defined CONFIG_COMPACTION || defined CONFIG_CMA /* * in mm/compaction.c */ /* * compact_control is used to track pages being migrated and the free pages * they are being migrated to during memory compaction. The free_pfn starts * at the end of a zone and migrate_pfn begins at the start. Movable pages * are moved to the end of a zone during a compaction run and the run * completes when free_pfn <= migrate_pfn */ struct compact_control { struct list_head freepages; /* List of free pages to migrate to */ struct list_head migratepages; /* List of pages being migrated */ |
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unsigned int nr_freepages; /* Number of isolated free pages */ unsigned int nr_migratepages; /* Number of pages to migrate */ |
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unsigned long free_pfn; /* isolate_freepages search base */ |
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/* * Acts as an in/out parameter to page isolation for migration. * isolate_migratepages uses it as a search base. * isolate_migratepages_block will update the value to the next pfn * after the last isolated one. */ unsigned long migrate_pfn; |
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unsigned long fast_start_pfn; /* a pfn to start linear scan from */ |
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struct zone *zone; unsigned long total_migrate_scanned; unsigned long total_free_scanned; |
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unsigned short fast_search_fail;/* failures to use free list searches */ short search_order; /* order to start a fast search at */ |
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const gfp_t gfp_mask; /* gfp mask of a direct compactor */ int order; /* order a direct compactor needs */ |
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int migratetype; /* migratetype of direct compactor */ |
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const unsigned int alloc_flags; /* alloc flags of a direct compactor */ |
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const int highest_zoneidx; /* zone index of a direct compactor */ |
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enum migrate_mode mode; /* Async or sync migration mode */ |
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bool ignore_skip_hint; /* Scan blocks even if marked skip */ |
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bool no_set_skip_hint; /* Don't mark blocks for skipping */ |
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bool ignore_block_suitable; /* Scan blocks considered unsuitable */ |
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bool direct_compaction; /* False from kcompactd or /proc/... */ |
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bool proactive_compaction; /* kcompactd proactive compaction */ |
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bool whole_zone; /* Whole zone should/has been scanned */ |
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bool contended; /* Signal lock or sched contention */ |
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bool rescan; /* Rescanning the same pageblock */ |
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bool alloc_contig; /* alloc_contig_range allocation */ |
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}; |
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/* * Used in direct compaction when a page should be taken from the freelists * immediately when one is created during the free path. */ struct capture_control { struct compact_control *cc; struct page *page; }; |
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unsigned long |
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isolate_freepages_range(struct compact_control *cc, unsigned long start_pfn, unsigned long end_pfn); |
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int |
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isolate_migratepages_range(struct compact_control *cc, unsigned long low_pfn, unsigned long end_pfn); |
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#endif |
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int find_suitable_fallback(struct free_area *area, unsigned int order, int migratetype, bool only_stealable, bool *can_steal); |
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|
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/* |
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* This function returns the order of a free page in the buddy system. In * general, page_zone(page)->lock must be held by the caller to prevent the * page from being allocated in parallel and returning garbage as the order. * If a caller does not hold page_zone(page)->lock, it must guarantee that the |
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* page cannot be allocated or merged in parallel. Alternatively, it must |
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* handle invalid values gracefully, and use buddy_order_unsafe() below. |
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*/ |
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static inline unsigned int buddy_order(struct page *page) |
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{ |
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/* PageBuddy() must be checked by the caller */ |
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return page_private(page); } |
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|
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/* |
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* Like buddy_order(), but for callers who cannot afford to hold the zone lock. |
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* PageBuddy() should be checked first by the caller to minimize race window, * and invalid values must be handled gracefully. * |
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* READ_ONCE is used so that if the caller assigns the result into a local |
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* variable and e.g. tests it for valid range before using, the compiler cannot * decide to remove the variable and inline the page_private(page) multiple * times, potentially observing different values in the tests and the actual * use of the result. */ |
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#define buddy_order_unsafe(page) READ_ONCE(page_private(page)) |
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|
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/* * These three helpers classifies VMAs for virtual memory accounting. */ /* * Executable code area - executable, not writable, not stack */ |
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static inline bool is_exec_mapping(vm_flags_t flags) { |
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return (flags & (VM_EXEC | VM_WRITE | VM_STACK)) == VM_EXEC; |
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} |
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/* |
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* Stack area - automatically grows in one direction |
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* * VM_GROWSUP / VM_GROWSDOWN VMAs are always private anonymous: * do_mmap() forbids all other combinations. */ |
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static inline bool is_stack_mapping(vm_flags_t flags) { |
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return (flags & VM_STACK) == VM_STACK; |
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} |
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/* * Data area - private, writable, not stack */ |
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static inline bool is_data_mapping(vm_flags_t flags) { |
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return (flags & (VM_WRITE | VM_SHARED | VM_STACK)) == VM_WRITE; |
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} |
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/* mm/util.c */ void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma, |
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struct vm_area_struct *prev); |
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void __vma_unlink_list(struct mm_struct *mm, struct vm_area_struct *vma); |
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|
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#ifdef CONFIG_MMU |
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extern long populate_vma_page_range(struct vm_area_struct *vma, |
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unsigned long start, unsigned long end, int *locked); |
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extern long faultin_vma_page_range(struct vm_area_struct *vma, unsigned long start, unsigned long end, bool write, int *locked); |
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extern void munlock_vma_pages_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); static inline void munlock_vma_pages_all(struct vm_area_struct *vma) { munlock_vma_pages_range(vma, vma->vm_start, vma->vm_end); } |
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/* |
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* must be called with vma's mmap_lock held for read or write, and page locked. |
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*/ extern void mlock_vma_page(struct page *page); |
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extern unsigned int munlock_vma_page(struct page *page); |
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|
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extern int mlock_future_check(struct mm_struct *mm, unsigned long flags, unsigned long len); |
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/* * Clear the page's PageMlocked(). This can be useful in a situation where * we want to unconditionally remove a page from the pagecache -- e.g., * on truncation or freeing. * * It is legal to call this function for any page, mlocked or not. * If called for a page that is still mapped by mlocked vmas, all we do * is revert to lazy LRU behaviour -- semantics are not broken. */ |
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extern void clear_page_mlock(struct page *page); |
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|
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extern pmd_t maybe_pmd_mkwrite(pmd_t pmd, struct vm_area_struct *vma); |
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|
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/* |
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* At what user virtual address is page expected in vma? * Returns -EFAULT if all of the page is outside the range of vma. * If page is a compound head, the entire compound page is considered. |
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*/ static inline unsigned long |
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vma_address(struct page *page, struct vm_area_struct *vma) |
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{ |
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pgoff_t pgoff; unsigned long address; VM_BUG_ON_PAGE(PageKsm(page), page); /* KSM page->index unusable */ pgoff = page_to_pgoff(page); if (pgoff >= vma->vm_pgoff) { address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT); /* Check for address beyond vma (or wrapped through 0?) */ if (address < vma->vm_start || address >= vma->vm_end) address = -EFAULT; } else if (PageHead(page) && pgoff + compound_nr(page) - 1 >= vma->vm_pgoff) { /* Test above avoids possibility of wrap to 0 on 32-bit */ address = vma->vm_start; } else { address = -EFAULT; } return address; |
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} |
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/* * Then at what user virtual address will none of the page be found in vma? * Assumes that vma_address() already returned a good starting address. * If page is a compound head, the entire compound page is considered. */ |
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static inline unsigned long |
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vma_address_end(struct page *page, struct vm_area_struct *vma) |
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{ |
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398 399 400 401 402 403 404 405 406 407 |
pgoff_t pgoff; unsigned long address; VM_BUG_ON_PAGE(PageKsm(page), page); /* KSM page->index unusable */ pgoff = page_to_pgoff(page) + compound_nr(page); address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT); /* Check for address beyond vma (or wrapped through 0?) */ if (address < vma->vm_start || address > vma->vm_end) address = vma->vm_end; return address; |
e9b61f198 thp: reintroduce ... |
408 |
} |
89b15332a mm: drop mmap_sem... |
409 410 411 412 413 414 415 416 417 418 |
static inline struct file *maybe_unlock_mmap_for_io(struct vm_fault *vmf, struct file *fpin) { int flags = vmf->flags; if (fpin) return fpin; /* * FAULT_FLAG_RETRY_NOWAIT means we don't want to wait on page locks or |
c1e8d7c6a mmap locking API:... |
419 |
* anything, so we only pin the file and drop the mmap_lock if only |
4064b9827 mm: allow VM_FAUL... |
420 |
* FAULT_FLAG_ALLOW_RETRY is set, while this is the first attempt. |
89b15332a mm: drop mmap_sem... |
421 |
*/ |
4064b9827 mm: allow VM_FAUL... |
422 423 |
if (fault_flag_allow_retry_first(flags) && !(flags & FAULT_FLAG_RETRY_NOWAIT)) { |
89b15332a mm: drop mmap_sem... |
424 |
fpin = get_file(vmf->vma->vm_file); |
d8ed45c5d mmap locking API:... |
425 |
mmap_read_unlock(vmf->vma->vm_mm); |
89b15332a mm: drop mmap_sem... |
426 427 428 |
} return fpin; } |
af8e3354b mm: CONFIG_MMU fo... |
429 |
#else /* !CONFIG_MMU */ |
b291f0003 mlock: mlocked pa... |
430 431 |
static inline void clear_page_mlock(struct page *page) { } static inline void mlock_vma_page(struct page *page) { } |
4ad0ae8c6 mm/vmalloc: remov... |
432 433 434 |
static inline void vunmap_range_noflush(unsigned long start, unsigned long end) { } |
af8e3354b mm: CONFIG_MMU fo... |
435 |
#endif /* !CONFIG_MMU */ |
894bc3104 Unevictable LRU I... |
436 |
|
b5a0e0113 Solve section mis... |
437 |
/* |
69d177c2f hugetlbfs: handle... |
438 439 440 441 442 443 444 |
* Return the mem_map entry representing the 'offset' subpage within * the maximally aligned gigantic page 'base'. Handle any discontiguity * in the mem_map at MAX_ORDER_NR_PAGES boundaries. */ static inline struct page *mem_map_offset(struct page *base, int offset) { if (unlikely(offset >= MAX_ORDER_NR_PAGES)) |
bc7f84c0e mm/internal.h: us... |
445 |
return nth_page(base, offset); |
69d177c2f hugetlbfs: handle... |
446 447 448 449 |
return base + offset; } /* |
25985edce Fix common misspe... |
450 |
* Iterator over all subpages within the maximally aligned gigantic |
69d177c2f hugetlbfs: handle... |
451 452 453 454 455 456 457 458 459 460 461 462 463 |
* page 'base'. Handle any discontiguity in the mem_map. */ static inline struct page *mem_map_next(struct page *iter, struct page *base, int offset) { if (unlikely((offset & (MAX_ORDER_NR_PAGES - 1)) == 0)) { unsigned long pfn = page_to_pfn(base) + offset; if (!pfn_valid(pfn)) return NULL; return pfn_to_page(pfn); } return iter + 1; } |
6b74ab97b mm: add a basic d... |
464 465 466 467 468 469 470 471 472 473 474 475 476 477 |
/* Memory initialisation debug and verification */ enum mminit_level { MMINIT_WARNING, MMINIT_VERIFY, MMINIT_TRACE }; #ifdef CONFIG_DEBUG_MEMORY_INIT extern int mminit_loglevel; #define mminit_dprintk(level, prefix, fmt, arg...) \ do { \ if (level < mminit_loglevel) { \ |
fc5199d1a mm/internal.h: do... |
478 |
if (level <= MMINIT_WARNING) \ |
1170532bb mm: convert print... |
479 |
pr_warn("mminit::" prefix " " fmt, ##arg); \ |
fc5199d1a mm/internal.h: do... |
480 481 |
else \ printk(KERN_DEBUG "mminit::" prefix " " fmt, ##arg); \ |
6b74ab97b mm: add a basic d... |
482 483 |
} \ } while (0) |
708614e61 mm: verify the pa... |
484 |
extern void mminit_verify_pageflags_layout(void); |
68ad8df42 mm: print out the... |
485 |
extern void mminit_verify_zonelist(void); |
6b74ab97b mm: add a basic d... |
486 487 488 489 490 491 |
#else static inline void mminit_dprintk(enum mminit_level level, const char *prefix, const char *fmt, ...) { } |
708614e61 mm: verify the pa... |
492 493 494 |
static inline void mminit_verify_pageflags_layout(void) { } |
68ad8df42 mm: print out the... |
495 496 497 |
static inline void mminit_verify_zonelist(void) { } |
6b74ab97b mm: add a basic d... |
498 |
#endif /* CONFIG_DEBUG_MEMORY_INIT */ |
2dbb51c49 mm: make defensiv... |
499 500 501 502 503 504 505 506 507 508 509 |
/* mminit_validate_memmodel_limits is independent of CONFIG_DEBUG_MEMORY_INIT */ #if defined(CONFIG_SPARSEMEM) extern void mminit_validate_memmodel_limits(unsigned long *start_pfn, unsigned long *end_pfn); #else static inline void mminit_validate_memmodel_limits(unsigned long *start_pfn, unsigned long *end_pfn) { } #endif /* CONFIG_SPARSEMEM */ |
a5f5f91da mm: convert zone_... |
510 511 512 513 |
#define NODE_RECLAIM_NOSCAN -2 #define NODE_RECLAIM_FULL -1 #define NODE_RECLAIM_SOME 0 #define NODE_RECLAIM_SUCCESS 1 |
7c116f2b0 HWPOISON: add fs/... |
514 |
|
8b09549c2 vmscan: return NO... |
515 516 |
#ifdef CONFIG_NUMA extern int node_reclaim(struct pglist_data *, gfp_t, unsigned int); |
79c28a416 mm/numa: automati... |
517 |
extern int find_next_best_node(int node, nodemask_t *used_node_mask); |
8b09549c2 vmscan: return NO... |
518 519 520 521 522 523 |
#else static inline int node_reclaim(struct pglist_data *pgdat, gfp_t mask, unsigned int order) { return NODE_RECLAIM_NOSCAN; } |
79c28a416 mm/numa: automati... |
524 525 526 527 |
static inline int find_next_best_node(int node, nodemask_t *used_node_mask) { return NUMA_NO_NODE; } |
8b09549c2 vmscan: return NO... |
528 |
#endif |
31d3d3484 HWPOISON: limit h... |
529 |
extern int hwpoison_filter(struct page *p); |
7c116f2b0 HWPOISON: add fs/... |
530 531 |
extern u32 hwpoison_filter_dev_major; extern u32 hwpoison_filter_dev_minor; |
478c5ffc0 HWPOISON: add pag... |
532 533 |
extern u64 hwpoison_filter_flags_mask; extern u64 hwpoison_filter_flags_value; |
4fd466eb4 HWPOISON: add mem... |
534 |
extern u64 hwpoison_filter_memcg; |
1bfe5febe HWPOISON: add an ... |
535 |
extern u32 hwpoison_filter_enable; |
eb36c5873 new helper: vm_mm... |
536 |
|
dc0ef0df7 mm: make mmap_sem... |
537 |
extern unsigned long __must_check vm_mmap_pgoff(struct file *, unsigned long, |
eb36c5873 new helper: vm_mm... |
538 |
unsigned long, unsigned long, |
9fbeb5ab5 mm: make vm_mmap ... |
539 |
unsigned long, unsigned long); |
ca57df79d mm: setup pageblo... |
540 541 |
extern void set_pageblock_order(void); |
730ec8c01 mm/vmscan.c: chan... |
542 |
unsigned int reclaim_clean_pages_from_list(struct zone *zone, |
02c6de8d7 mm: cma: discard ... |
543 |
struct list_head *page_list); |
d95ea5d18 cma: fix watermar... |
544 545 546 547 548 549 550 551 |
/* The ALLOC_WMARK bits are used as an index to zone->watermark */ #define ALLOC_WMARK_MIN WMARK_MIN #define ALLOC_WMARK_LOW WMARK_LOW #define ALLOC_WMARK_HIGH WMARK_HIGH #define ALLOC_NO_WATERMARKS 0x04 /* don't check watermarks at all */ /* Mask to get the watermark bits */ #define ALLOC_WMARK_MASK (ALLOC_NO_WATERMARKS-1) |
cd04ae1e2 mm, oom: do not r... |
552 553 554 555 556 557 558 559 560 561 |
/* * Only MMU archs have async oom victim reclaim - aka oom_reaper so we * cannot assume a reduced access to memory reserves is sufficient for * !MMU */ #ifdef CONFIG_MMU #define ALLOC_OOM 0x08 #else #define ALLOC_OOM ALLOC_NO_WATERMARKS #endif |
6bb154504 mm, page_alloc: s... |
562 563 564 565 566 567 568 569 570 |
#define ALLOC_HARDER 0x10 /* try to alloc harder */ #define ALLOC_HIGH 0x20 /* __GFP_HIGH set */ #define ALLOC_CPUSET 0x40 /* check for correct cpuset */ #define ALLOC_CMA 0x80 /* allow allocations from CMA areas */ #ifdef CONFIG_ZONE_DMA32 #define ALLOC_NOFRAGMENT 0x100 /* avoid mixing pageblock types */ #else #define ALLOC_NOFRAGMENT 0x0 #endif |
736838e96 mm, pagealloc: mi... |
571 |
#define ALLOC_KSWAPD 0x800 /* allow waking of kswapd, __GFP_KSWAPD_RECLAIM set */ |
d95ea5d18 cma: fix watermar... |
572 |
|
72b252aed mm: send one IPI ... |
573 574 |
enum ttu_flags; struct tlbflush_unmap_batch; |
ce612879d mm: move pcp and ... |
575 576 577 578 579 580 |
/* * only for MM internal work items which do not depend on * any allocations or locks which might depend on allocations */ extern struct workqueue_struct *mm_percpu_wq; |
72b252aed mm: send one IPI ... |
581 582 |
#ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH void try_to_unmap_flush(void); |
d950c9477 mm: defer flush o... |
583 |
void try_to_unmap_flush_dirty(void); |
3ea277194 mm, mprotect: flu... |
584 |
void flush_tlb_batched_pending(struct mm_struct *mm); |
72b252aed mm: send one IPI ... |
585 586 587 588 |
#else static inline void try_to_unmap_flush(void) { } |
d950c9477 mm: defer flush o... |
589 590 591 |
static inline void try_to_unmap_flush_dirty(void) { } |
3ea277194 mm, mprotect: flu... |
592 593 594 |
static inline void flush_tlb_batched_pending(struct mm_struct *mm) { } |
72b252aed mm: send one IPI ... |
595 |
#endif /* CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH */ |
edf14cdbf mm, printk: intro... |
596 597 598 599 |
extern const struct trace_print_flags pageflag_names[]; extern const struct trace_print_flags vmaflag_names[]; extern const struct trace_print_flags gfpflag_names[]; |
a6ffdc078 mm: use is_migrat... |
600 601 602 603 604 605 606 607 608 |
static inline bool is_migrate_highatomic(enum migratetype migratetype) { return migratetype == MIGRATE_HIGHATOMIC; } static inline bool is_migrate_highatomic_page(struct page *page) { return get_pageblock_migratetype(page) == MIGRATE_HIGHATOMIC; } |
72675e131 mm, memory_hotplu... |
609 |
void setup_zone_pageset(struct zone *zone); |
19fc7bed2 mm/migrate: intro... |
610 611 612 613 614 615 |
struct migration_target_control { int nid; /* preferred node id */ nodemask_t *nmask; gfp_t gfp_mask; }; |
b67177ecd mm/vmalloc: remov... |
616 617 618 |
/* * mm/vmalloc.c */ |
4ad0ae8c6 mm/vmalloc: remov... |
619 |
#ifdef CONFIG_MMU |
b67177ecd mm/vmalloc: remov... |
620 621 |
int vmap_pages_range_noflush(unsigned long addr, unsigned long end, pgprot_t prot, struct page **pages, unsigned int page_shift); |
4ad0ae8c6 mm/vmalloc: remov... |
622 623 624 625 626 627 628 629 630 631 |
#else static inline int vmap_pages_range_noflush(unsigned long addr, unsigned long end, pgprot_t prot, struct page **pages, unsigned int page_shift) { return -EINVAL; } #endif void vunmap_range_noflush(unsigned long start, unsigned long end); |
b67177ecd mm/vmalloc: remov... |
632 |
|
f4c0d8367 mm: memory: make ... |
633 634 |
int numa_migrate_prep(struct page *page, struct vm_area_struct *vma, unsigned long addr, int page_nid, int *flags); |
db9714188 mm: adjust final ... |
635 |
#endif /* __MM_INTERNAL_H */ |