diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/Kconfig | 6 | ||||
| -rw-r--r-- | mm/bootmem.c | 195 | ||||
| -rw-r--r-- | mm/hugetlb.c | 4 | ||||
| -rw-r--r-- | mm/memory.c | 14 | ||||
| -rw-r--r-- | mm/migrate.c | 2 | ||||
| -rw-r--r-- | mm/mmu_context.c | 3 | ||||
| -rw-r--r-- | mm/page_alloc.c | 263 | ||||
| -rw-r--r-- | mm/percpu.c | 36 | ||||
| -rw-r--r-- | mm/sparse-vmemmap.c | 76 | ||||
| -rw-r--r-- | mm/sparse.c | 196 | ||||
| -rw-r--r-- | mm/vmstat.c | 15 |
11 files changed, 620 insertions, 190 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 17b8947aa7d..9c61158308d 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -115,6 +115,10 @@ config SPARSEMEM_EXTREME config SPARSEMEM_VMEMMAP_ENABLE bool +config SPARSEMEM_ALLOC_MEM_MAP_TOGETHER + def_bool y + depends on SPARSEMEM && X86_64 + config SPARSEMEM_VMEMMAP bool "Sparse Memory virtual memmap" depends on SPARSEMEM && SPARSEMEM_VMEMMAP_ENABLE @@ -195,7 +199,7 @@ config BOUNCE config NR_QUICK int depends on QUICKLIST - default "2" if SUPERH || AVR32 + default "2" if AVR32 default "1" config VIRT_TO_BUS diff --git a/mm/bootmem.c b/mm/bootmem.c index 7d1486875e1..d7c791ef003 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -13,6 +13,7 @@ #include <linux/bootmem.h> #include <linux/module.h> #include <linux/kmemleak.h> +#include <linux/range.h> #include <asm/bug.h> #include <asm/io.h> @@ -32,6 +33,7 @@ unsigned long max_pfn; unsigned long saved_max_pfn; #endif +#ifndef CONFIG_NO_BOOTMEM bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata; static struct list_head bdata_list __initdata = LIST_HEAD_INIT(bdata_list); @@ -142,7 +144,7 @@ unsigned long __init init_bootmem(unsigned long start, unsigned long pages) min_low_pfn = start; return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages); } - +#endif /* * free_bootmem_late - free bootmem pages directly to page allocator * @addr: starting address of the range @@ -167,6 +169,60 @@ void __init free_bootmem_late(unsigned long addr, unsigned long size) } } +#ifdef CONFIG_NO_BOOTMEM +static void __init __free_pages_memory(unsigned long start, unsigned long end) +{ + int i; + unsigned long start_aligned, end_aligned; + int order = ilog2(BITS_PER_LONG); + + start_aligned = (start + (BITS_PER_LONG - 1)) & ~(BITS_PER_LONG - 1); + end_aligned = end & ~(BITS_PER_LONG - 1); + + if (end_aligned <= start_aligned) { +#if 1 + printk(KERN_DEBUG " %lx - %lx\n", start, end); +#endif + for (i = start; i < end; i++) + __free_pages_bootmem(pfn_to_page(i), 0); + + return; + } + +#if 1 + printk(KERN_DEBUG " %lx %lx - %lx %lx\n", + start, start_aligned, end_aligned, end); +#endif + for (i = start; i < start_aligned; i++) + __free_pages_bootmem(pfn_to_page(i), 0); + + for (i = start_aligned; i < end_aligned; i += BITS_PER_LONG) + __free_pages_bootmem(pfn_to_page(i), order); + + for (i = end_aligned; i < end; i++) + __free_pages_bootmem(pfn_to_page(i), 0); +} + +unsigned long __init free_all_memory_core_early(int nodeid) +{ + int i; + u64 start, end; + unsigned long count = 0; + struct range *range = NULL; + int nr_range; + + nr_range = get_free_all_memory_range(&range, nodeid); + + for (i = 0; i < nr_range; i++) { + start = range[i].start; + end = range[i].end; + count += end - start; + __free_pages_memory(start, end); + } + + return count; +} +#else static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) { int aligned; @@ -227,6 +283,7 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) return count; } +#endif /** * free_all_bootmem_node - release a node's free pages to the buddy allocator @@ -237,7 +294,12 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) unsigned long __init free_all_bootmem_node(pg_data_t *pgdat) { register_page_bootmem_info_node(pgdat); +#ifdef CONFIG_NO_BOOTMEM + /* free_all_memory_core_early(MAX_NUMNODES) will be called later */ + return 0; +#else return free_all_bootmem_core(pgdat->bdata); +#endif } /** @@ -247,9 +309,14 @@ unsigned long __init free_all_bootmem_node(pg_data_t *pgdat) */ unsigned long __init free_all_bootmem(void) { +#ifdef CONFIG_NO_BOOTMEM + return free_all_memory_core_early(NODE_DATA(0)->node_id); +#else return free_all_bootmem_core(NODE_DATA(0)->bdata); +#endif } +#ifndef CONFIG_NO_BOOTMEM static void __init __free(bootmem_data_t *bdata, unsigned long sidx, unsigned long eidx) { @@ -344,6 +411,7 @@ static int __init mark_bootmem(unsigned long start, unsigned long end, } BUG(); } +#endif /** * free_bootmem_node - mark a page range as usable @@ -358,6 +426,12 @@ static int __init mark_bootmem(unsigned long start, unsigned long end, void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, unsigned long size) { +#ifdef CONFIG_NO_BOOTMEM + free_early(physaddr, physaddr + size); +#if 0 + printk(KERN_DEBUG "free %lx %lx\n", physaddr, size); +#endif +#else unsigned long start, end; kmemleak_free_part(__va(physaddr), size); @@ -366,6 +440,7 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, end = PFN_DOWN(physaddr + size); mark_bootmem_node(pgdat->bdata, start, end, 0, 0); +#endif } /** @@ -379,6 +454,12 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, */ void __init free_bootmem(unsigned long addr, unsigned long size) { +#ifdef CONFIG_NO_BOOTMEM + free_early(addr, addr + size); +#if 0 + printk(KERN_DEBUG "free %lx %lx\n", addr, size); +#endif +#else unsigned long start, end; kmemleak_free_part(__va(addr), size); @@ -387,6 +468,7 @@ void __init free_bootmem(unsigned long addr, unsigned long size) end = PFN_DOWN(addr + size); mark_bootmem(start, end, 0, 0); +#endif } /** @@ -403,12 +485,17 @@ void __init free_bootmem(unsigned long addr, unsigned long size) int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, unsigned long size, int flags) { +#ifdef CONFIG_NO_BOOTMEM + panic("no bootmem"); + return 0; +#else unsigned long start, end; start = PFN_DOWN(physaddr); end = PFN_UP(physaddr + size); return mark_bootmem_node(pgdat->bdata, start, end, 1, flags); +#endif } /** @@ -424,14 +511,20 @@ int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, int __init reserve_bootmem(unsigned long addr, unsigned long size, int flags) { +#ifdef CONFIG_NO_BOOTMEM + panic("no bootmem"); + return 0; +#else unsigned long start, end; start = PFN_DOWN(addr); end = PFN_UP(addr + size); return mark_bootmem(start, end, 1, flags); +#endif } +#ifndef CONFIG_NO_BOOTMEM static unsigned long __init align_idx(struct bootmem_data *bdata, unsigned long idx, unsigned long step) { @@ -582,12 +675,33 @@ static void * __init alloc_arch_preferred_bootmem(bootmem_data_t *bdata, #endif return NULL; } +#endif static void * __init ___alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { +#ifdef CONFIG_NO_BOOTMEM + void *ptr; + + if (WARN_ON_ONCE(slab_is_available())) + return kzalloc(size, GFP_NOWAIT); + +restart: + + ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, goal, limit); + + if (ptr) + return ptr; + + if (goal != 0) { + goal = 0; + goto restart; + } + + return NULL; +#else bootmem_data_t *bdata; void *region; @@ -613,6 +727,7 @@ restart: } return NULL; +#endif } /** @@ -631,7 +746,13 @@ restart: void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal) { - return ___alloc_bootmem_nopanic(size, align, goal, 0); + unsigned long limit = 0; + +#ifdef CONFIG_NO_BOOTMEM + limit = -1UL; +#endif + + return ___alloc_bootmem_nopanic(size, align, goal, limit); } static void * __init ___alloc_bootmem(unsigned long size, unsigned long align, @@ -665,9 +786,16 @@ static void * __init ___alloc_bootmem(unsigned long size, unsigned long align, void * __init __alloc_bootmem(unsigned long size, unsigned long align, unsigned long goal) { - return ___alloc_bootmem(size, align, goal, 0); + unsigned long limit = 0; + +#ifdef CONFIG_NO_BOOTMEM + limit = -1UL; +#endif + + return ___alloc_bootmem(size, align, goal, limit); } +#ifndef CONFIG_NO_BOOTMEM static void * __init ___alloc_bootmem_node(bootmem_data_t *bdata, unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) @@ -684,6 +812,7 @@ static void * __init ___alloc_bootmem_node(bootmem_data_t *bdata, return ___alloc_bootmem(size, align, goal, limit); } +#endif /** * __alloc_bootmem_node - allocate boot memory from a specific node @@ -706,7 +835,46 @@ void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); +#ifdef CONFIG_NO_BOOTMEM + return __alloc_memory_core_early(pgdat->node_id, size, align, + goal, -1ULL); +#else return ___alloc_bootmem_node(pgdat->bdata, size, align, goal, 0); +#endif +} + +void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size, + unsigned long align, unsigned long goal) +{ +#ifdef MAX_DMA32_PFN + unsigned long end_pfn; + + if (WARN_ON_ONCE(slab_is_available())) + return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); + + /* update goal according ...MAX_DMA32_PFN */ + end_pfn = pgdat->node_start_pfn + pgdat->node_spanned_pages; + + if (end_pfn > MAX_DMA32_PFN + (128 >> (20 - PAGE_SHIFT)) && + (goal >> PAGE_SHIFT) < MAX_DMA32_PFN) { + void *ptr; + unsigned long new_goal; + + new_goal = MAX_DMA32_PFN << PAGE_SHIFT; +#ifdef CONFIG_NO_BOOTMEM + ptr = __alloc_memory_core_early(pgdat->node_id, size, align, + new_goal, -1ULL); +#else + ptr = alloc_bootmem_core(pgdat->bdata, size, align, + new_goal, 0); +#endif + if (ptr) + return ptr; + } +#endif + + return __alloc_bootmem_node(pgdat, size, align, goal); + } #ifdef CONFIG_SPARSEMEM @@ -720,6 +888,16 @@ void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, void * __init alloc_bootmem_section(unsigned long size, unsigned long section_nr) { +#ifdef CONFIG_NO_BOOTMEM + unsigned long pfn, goal, limit; + + pfn = section_nr_to_pfn(section_nr); + goal = pfn << PAGE_SHIFT; + limit = section_nr_to_pfn(section_nr + 1) << PAGE_SHIFT; + + return __alloc_memory_core_early(early_pfn_to_nid(pfn), size, + SMP_CACHE_BYTES, goal, limit); +#else bootmem_data_t *bdata; unsigned long pfn, goal, limit; @@ -729,6 +907,7 @@ void * __init alloc_bootmem_section(unsigned long size, bdata = &bootmem_node_data[early_pfn_to_nid(pfn)]; return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, limit); +#endif } #endif @@ -740,11 +919,16 @@ void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size, if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); +#ifdef CONFIG_NO_BOOTMEM + ptr = __alloc_memory_core_early(pgdat->node_id, size, align, + goal, -1ULL); +#else ptr = alloc_arch_preferred_bootmem(pgdat->bdata, size, align, goal, 0); if (ptr) return ptr; ptr = alloc_bootmem_core(pgdat->bdata, size, align, goal, 0); +#endif if (ptr) return ptr; @@ -795,6 +979,11 @@ void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size, if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); +#ifdef CONFIG_NO_BOOTMEM + return __alloc_memory_core_early(pgdat->node_id, size, align, + goal, ARCH_LOW_ADDRESS_LIMIT); +#else return ___alloc_bootmem_node(pgdat->bdata, size, align, goal, ARCH_LOW_ADDRESS_LIMIT); +#endif } diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 2d16fa6b8c2..3a5aeb37c11 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2087,7 +2087,7 @@ static void set_huge_ptep_writable(struct vm_area_struct *vma, entry = pte_mkwrite(pte_mkdirty(huge_ptep_get(ptep))); if (huge_ptep_set_access_flags(vma, address, ptep, entry, 1)) { - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, ptep); } } @@ -2558,7 +2558,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, entry = pte_mkyoung(entry); if (huge_ptep_set_access_flags(vma, address, ptep, entry, flags & FAULT_FLAG_WRITE)) - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, ptep); out_page_table_lock: spin_unlock(&mm->page_table_lock); diff --git a/mm/memory.c b/mm/memory.c index 09e4b1be7b6..72fb5f39bcc 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1593,7 +1593,7 @@ static int insert_pfn(struct vm_area_struct *vma, unsigned long addr, /* Ok, finally just insert the thing.. */ entry = pte_mkspecial(pfn_pte(pfn, prot)); set_pte_at(mm, addr, pte, entry); - update_mmu_cache(vma, addr, entry); /* XXX: why not for insert_page? */ + update_mmu_cache(vma, addr, pte); /* XXX: why not for insert_page? */ retval = 0; out_unlock: @@ -2116,7 +2116,7 @@ reuse: entry = pte_mkyoung(orig_pte); entry = maybe_mkwrite(pte_mkdirty(entry), vma); if (ptep_set_access_flags(vma, address, page_table, entry,1)) - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, page_table); ret |= VM_FAULT_WRITE; goto unlock; } @@ -2185,7 +2185,7 @@ gotten: * new page to be mapped directly into the secondary page table. */ set_pte_at_notify(mm, address, page_table, entry); - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, page_table); if (old_page) { /* * Only after switching the pte to the new page may @@ -2629,7 +2629,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, } /* No need to invalidate - it was non-present before */ - update_mmu_cache(vma, address, pte); + update_mmu_cache(vma, address, page_table); unlock: pte_unmap_unlock(page_table, ptl); out: @@ -2694,7 +2694,7 @@ setpte: set_pte_at(mm, address, page_table, entry); /* No need to invalidate - it was non-present before */ - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, page_table); unlock: pte_unmap_unlock(page_table, ptl); return 0; @@ -2855,7 +2855,7 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma, set_pte_at(mm, address, page_table, entry); /* no need to invalidate: a not-present page won't be cached */ - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, page_table); } else { if (charged) mem_cgroup_uncharge_page(page); @@ -2992,7 +2992,7 @@ static inline int handle_pte_fault(struct mm_struct *mm, } entry = pte_mkyoung(entry); if (ptep_set_access_flags(vma, address, pte, entry, flags & FAULT_FLAG_WRITE)) { - update_mmu_cache(vma, address, entry); + update_mmu_cache(vma, address, pte); } else { /* * This is needed only for protection faults but the arch code diff --git a/mm/migrate.c b/mm/migrate.c index 880bd592d38..edb6101ed77 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -134,7 +134,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma, page_add_file_rmap(new); /* No need to invalidate - it was non-present before */ - update_mmu_cache(vma, addr, pte); + update_mmu_cache(vma, addr, ptep); unlock: pte_unmap_unlock(ptep, ptl); out: diff --git a/mm/mmu_context.c b/mm/mmu_context.c index ded9081f402..0777654147c 100644 --- a/mm/mmu_context.c +++ b/mm/mmu_context.c @@ -5,6 +5,7 @@ #include <linux/mm.h> #include <linux/mmu_context.h> +#include <linux/module.h> #include <linux/sched.h> #include <asm/mmu_context.h> @@ -37,6 +38,7 @@ void use_mm(struct mm_struct *mm) if (active_mm != mm) mmdrop(active_mm); } +EXPORT_SYMBOL_GPL(use_mm); /* * unuse_mm @@ -56,3 +58,4 @@ void unuse_mm(struct mm_struct *mm) enter_lazy_tlb(mm, tsk); task_unlock(tsk); } +EXPORT_SYMBOL_GPL(unuse_mm); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8deb9d0fd5b..a6b17aa4740 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1009,10 +1009,10 @@ static void drain_pages(unsigned int cpu) struct per_cpu_pageset *pset; struct per_cpu_pages *pcp; - pset = zone_pcp(zone, cpu); + local_irq_save(flags); + pset = per_cpu_ptr(zone->pageset, cpu); pcp = &pset->pcp; - local_irq_save(flags); free_pcppages_bulk(zone, pcp->count, pcp); pcp->count = 0; local_irq_restore(flags); @@ -1096,7 +1096,6 @@ static void free_hot_cold_page(struct page *page, int cold) arch_free_page(page, 0); kernel_map_pages(page, 1, 0); - pcp = &zone_pcp(zone, get_cpu())->pcp; migratetype = get_pageblock_migratetype(page); set_page_private(page, migratetype); local_irq_save(flags); @@ -1119,6 +1118,7 @@ static void free_hot_cold_page(struct page *page, int cold) migratetype = MIGRATE_MOVABLE; } + pcp = &this_cpu_ptr(zone->pageset)->pcp; if (cold) list_add_tail(&page->lru, &pcp->lists[migratetype]); else @@ -1131,7 +1131,6 @@ static void free_hot_cold_page(struct page *page, int cold) out: local_irq_restore(flags); - put_cpu(); } void free_hot_page(struct page *page) @@ -1181,17 +1180,15 @@ struct page *buffered_rmqueue(struct zone *preferred_zone, unsigned long flags; struct page *page; int cold = !!(gfp_flags & __GFP_COLD); - int cpu; again: - cpu = get_cpu(); if (likely(order == 0)) { struct per_cpu_pages *pcp; struct list_head *list; - pcp = &zone_pcp(zone, cpu)->pcp; - list = &pcp->lists[migratetype]; local_irq_save(flags); + pcp = &this_cpu_ptr(zone->pageset)->pcp; + list = &pcp->lists[migratetype]; if (list_empty(list)) { pcp->count += rmqueue_bulk(zone, 0, pcp->batch, list, @@ -1232,7 +1229,6 @@ again: __count_zone_vm_events(PGALLOC, zone, 1 << order); zone_statistics(preferred_zone, zone); local_irq_restore(flags); - put_cpu(); VM_BUG_ON(bad_range(zone, page)); if (prep_new_page(page, order, gfp_flags)) @@ -1241,7 +1237,6 @@ again: failed: local_irq_restore(flags); - put_cpu(); return NULL; } @@ -2180,7 +2175,7 @@ void show_free_areas(void) for_each_online_cpu(cpu) { struct per_cpu_pageset *pageset; - pageset = zone_pcp(zone, cpu); + pageset = per_cpu_ptr(zone->pageset, cpu); printk("CPU %4d: hi:%5d, btch:%4d usd:%4d\n", cpu, pageset->pcp.high, @@ -2745,10 +2740,29 @@ static void build_zonelist_cache(pg_data_t *pgdat) #endif /* CONFIG_NUMA */ +/* + * Boot pageset table. One per cpu which is going to be used for all + * zones and all nodes. The parameters will be set in such a way + * that an item put on a list will immediately be handed over to + * the buddy list. This is safe since pageset manipulation is done + * with interrupts disabled. + * + * The boot_pagesets must be kept even after bootup is complete for + * unused processors and/or zones. They do play a role for bootstrapping + * hotplugged processors. + * + * zoneinfo_show() and maybe other functions do + * not check if the processor is online before following the pageset pointer. + * Other parts of the kernel may not check if the zone is available. + */ +static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch); +static DEFINE_PER_CPU(struct per_cpu_pageset, boot_pageset); + /* return values int ....just for stop_machine() */ static int __build_all_zonelists(void *dummy) { int nid; + int cpu; #ifdef CONFIG_NUMA memset(node_load, 0, sizeof(node_load)); @@ -2759,6 +2773,23 @@ static int __build_all_zonelists(void *dummy) build_zonelists(pgdat); build_zonelist_cache(pgdat); } + + /* + * Initialize the boot_pagesets that are going to be used + * for bootstrapping processors. The real pagesets for + * each zone will be allocated later when the per cpu + * allocator is available. + * + * boot_pagesets are used also for bootstrapping offline + * cpus if the system is already booted because the pagesets + * are needed to initialize allocators on a specific cpu too. + * F.e. the percpu allocator needs the page allocator which + * needs the percpu allocator in order to allocate its pagesets + * (a chicken-egg dilemma). + */ + for_each_possible_cpu(cpu) + setup_pageset(&per_cpu(boot_pageset, cpu), 0); + return 0; } @@ -3096,121 +3127,33 @@ static void setup_pagelist_highmark(struct per_cpu_pageset *p, pcp->batch = PAGE_SHIFT * 8; } - -#ifdef CONFIG_NUMA -/* - * Boot pageset table. One per cpu which is going to be used for all - * zones and all nodes. The parameters will be set in such a way - * that an item put on a list will immediately be handed over to - * the buddy list. This is safe since pageset manipulation is done - * with interrupts disabled. - * - * Some NUMA counter updates may also be caught by the boot pagesets. - * - * The boot_pagesets must be kept even after bootup is complete for - * unused processors and/or zones. They do play a role for bootstrapping - * hotplugged processors. - * - * zoneinfo_show() and maybe other functions do - * not check if the processor is online before following the pageset pointer. - * Other parts of the kernel may not check if the zone is available. - */ -static struct per_cpu_pageset boot_pageset[NR_CPUS]; - /* - * Dynamically allocate memory for the - * per cpu pageset array in struct zone. + * Allocate per cpu pagesets and initialize them. + * Before this call only boot pagesets were available. + * Boot pagesets will no longer be used by this processorr + * after setup_per_cpu_pageset(). */ -static int __cpuinit process_zones(int cpu) +void __init setup_per_cpu_pageset(void) { - struct zone *zone, *dzone; - int node = cpu_to_node(cpu); - - node_set_state(node, N_CPU); /* this node has a cpu */ + struct zone *zone; + int cpu; for_each_populated_zone(zone) { - zone_pcp(zone, cpu) = kmalloc_node(sizeof(struct per_cpu_pageset), - GFP_KERNEL, node); - if (!zone_pcp(zone, cpu)) - goto bad; + zone->pageset = alloc_percpu(struct per_cpu_pageset); - setup_pageset(zone_pcp(zone, cpu), zone_batchsize(zone)); + for_each_possible_cpu(cpu) { + struct per_cpu_pageset *pcp = per_cpu_ptr(zone->pageset, cpu); - if (percpu_pagelist_fraction) - setup_pagelist_highmark(zone_pcp(zone, cpu), - (zone->present_pages / percpu_pagelist_fraction)); - } + setup_pageset(pcp, zone_batchsize(zone)); - return 0; -bad: - for_each_zone(dzone) { - if (!populated_zone(dzone)) - continue; - if (dzone == zone) - break; - kfree(zone_pcp(dzone, cpu)); - zone_pcp(dzone, cpu) = &boot_pageset[cpu]; - } - return -ENOMEM; -} - -static inline void free_zone_pagesets(int cpu) -{ - struct zone *zone; - - for_each_zone(zone) { - struct per_cpu_pageset *pset = zone_pcp(zone, cpu); - - /* Free per_cpu_pageset if it is slab allocated */ - if (pset != &boot_pageset[cpu]) - kfree(pset); - zone_pcp(zone, cpu) = &boot_pageset[cpu]; - } -} - -static int __cpuinit pageset_cpuup_callback(struct notifier_block *nfb, - unsigned long action, - void *hcpu) -{ - int cpu = (long)hcpu; - int ret = NOTIFY_OK; - - switch (action) { - case CPU_UP_PREPARE: - case CPU_UP_PREPARE_FROZEN: - if (process_zones(cpu)) - ret = NOTIFY_BAD; - break; - case CPU_UP_CANCELED: - case CPU_UP_CANCELED_FROZEN: - case CPU_DEAD: - case CPU_DEAD_FROZEN: - free_zone_pagesets(cpu); - break; - default: - break; + if (percpu_pagelist_fraction) + setup_pagelist_highmark(pcp, + (zone->present_pages / + percpu_pagelist_fraction)); + } } - return ret; -} - -static struct notifier_block __cpuinitdata pageset_notifier = - { &pageset_cpuup_callback, NULL, 0 }; - -void __init setup_per_cpu_pageset(void) -{ - int err; - - /* Initialize per_cpu_pageset for cpu 0. - * A cpuup callback will do this for every cpu - * as it comes online - */ - err = process_zones(smp_processor_id()); - BUG_ON(err); - register_cpu_notifier(&pageset_notifier); } -#endif - static noinline __init_refok int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages) { @@ -3264,7 +3207,7 @@ static int __zone_pcp_update(void *data) struct per_cpu_pageset *pset; struct per_cpu_pages *pcp; - pset = zone_pcp(zone, cpu); + pset = per_cpu_ptr(zone->pageset, cpu); pcp = &pset->pcp; local_irq_save(flags); @@ -3282,21 +3225,17 @@ void zone_pcp_update(struct zone *zone) static __meminit void zone_pcp_init(struct zone *zone) { - int cpu; - unsigned long batch = zone_batchsize(zone); + /* + * per cpu subsystem is not up at this point. The following code + * relies on the ability of the linker to provide the + * offset of a (static) per cpu variable into the per cpu area. + */ + zone->pageset = &boot_pageset; - for (cpu = 0; cpu < NR_CPUS; cpu++) { -#ifdef CONFIG_NUMA - /* Early boot. Slab allocator not functional yet */ - zone_pcp(zone, cpu) = &boot_pageset[cpu]; - setup_pageset(&boot_pageset[cpu],0); -#else - setup_pageset(zone_pcp(zone,cpu), batch); -#endif - } if (zone->present_pages) - printk(KERN_DEBUG " %s zone: %lu pages, LIFO batch:%lu\n", - zone->name, zone->present_pages, batch); + printk(KERN_DEBUG " %s zone: %lu pages, LIFO batch:%u\n", + zone->name, zone->present_pages, + zone_batchsize(zone)); } __meminit int init_currently_empty_zone(struct zone *zone, @@ -3435,6 +3374,61 @@ void __init free_bootmem_with_active_regions(int nid, } } +int __init add_from_early_node_map(struct range *range, int az, + int nr_range, int nid) +{ + int i; + u64 start, end; + + /* need to go over early_node_map to find out good range for node */ + for_each_active_range_index_in_nid(i, nid) { + start = early_node_map[i].start_pfn; + end = early_node_map[i].end_pfn; + nr_range = add_range(range, az, nr_range, start, end); + } + return nr_range; +} + +#ifdef CONFIG_NO_BOOTMEM +void * __init __alloc_memory_core_early(int nid, u64 size, u64 align, + u64 goal, u64 limit) +{ + int i; + void *ptr; + + /* need to go over early_node_map to find out good range for node */ + for_each_active_range_index_in_nid(i, nid) { + u64 addr; + u64 ei_start, ei_last; + + ei_last = early_node_map[i].end_pfn; + ei_last <<= PAGE_SHIFT; + ei_start = early_node_map[i].start_pfn; + ei_start <<= PAGE_SHIFT; + addr = find_early_area(ei_start, ei_last, + goal, limit, size, align); + + if (addr == -1ULL) + continue; + +#if 0 + printk(KERN_DEBUG "alloc (nid=%d %llx - %llx) (%llx - %llx) %llx %llx => %llx\n", + nid, + ei_start, ei_last, goal, limit, size, + align, addr); +#endif + + ptr = phys_to_virt(addr); + memset(ptr, 0, size); + reserve_early_without_check(addr, addr + size, "BOOTMEM"); + return ptr; + } + + return NULL; +} +#endif + + void __init work_with_active_regions(int nid, work_fn_t work_fn, void *data) { int i; @@ -4467,7 +4461,11 @@ void __init set_dma_reserve(unsigned long new_dma_reserve) } #ifndef CONFIG_NEED_MULTIPLE_NODES -struct pglist_data __refdata contig_page_data = { .bdata = &bootmem_node_data[0] }; +struct pglist_data __refdata contig_page_data = { +#ifndef CONFIG_NO_BOOTMEM + .bdata = &bootmem_node_data[0] +#endif + }; EXPORT_SYMBOL(contig_page_data); #endif @@ -4810,10 +4808,11 @@ int percpu_pagelist_fraction_sysctl_handler(ctl_table *table, int write, if (!write || (ret == -EINVAL)) return ret; for_each_populated_zone(zone) { - for_each_online_cpu(cpu) { + for_each_possible_cpu(cpu) { unsigned long high; high = zone->present_pages / percpu_pagelist_fraction; - setup_pagelist_highmark(zone_pcp(zone, cpu), high); + setup_pagelist_highmark( + per_cpu_ptr(zone->pageset, cpu), high); } } return 0; diff --git a/mm/percpu.c b/mm/percpu.c index 083e7c91e5f..768419d44ad 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -80,13 +80,15 @@ /* default addr <-> pcpu_ptr mapping, override in asm/percpu.h if necessary */ #ifndef __addr_to_pcpu_ptr #define __addr_to_pcpu_ptr(addr) \ - (void *)((unsigned long)(addr) - (unsigned long)pcpu_base_addr \ - + (unsigned long)__per_cpu_start) + (void __percpu *)((unsigned long)(addr) - \ + (unsigned long)pcpu_base_addr + \ + (unsigned long)__per_cpu_start) #endif #ifndef __pcpu_ptr_to_addr #define __pcpu_ptr_to_addr(ptr) \ - (void *)((unsigned long)(ptr) + (unsigned long)pcpu_base_addr \ - - (unsigned long)__per_cpu_start) + (void __force *)((unsigned long)(ptr) + \ + (unsigned long)pcpu_base_addr - \ + (unsigned long)__per_cpu_start) #endif struct pcpu_chunk { @@ -913,11 +915,10 @@ static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk, int off, int size) int rs, re; /* quick path, check whether it's empty already */ - pcpu_for_each_unpop_region(chunk, rs, re, page_start, page_end) { - if (rs == page_start && re == page_end) - return; - break; - } + rs = page_start; + pcpu_next_unpop(chunk, &rs, &re, page_end); + if (rs == page_start && re == page_end) + return; /* immutable chunks can't be depopulated */ WARN_ON(chunk->immutable); @@ -968,11 +969,10 @@ static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size) int rs, re, rc; /* quick path, check whether all pages are already there */ - pcpu_for_each_pop_region(chunk, rs, re, page_start, page_end) { - if (rs == page_start && re == page_end) - goto clear; - break; - } + rs = page_start; + pcpu_next_pop(chunk, &rs, &re, page_end); + if (rs == page_start && re == page_end) + goto clear; /* need to allocate and map pages, this chunk can't be immutable */ WARN_ON(chunk->immutable); @@ -1067,7 +1067,7 @@ static struct pcpu_chunk *alloc_pcpu_chunk(void) * RETURNS: * Percpu pointer to the allocated area on success, NULL on failure. */ -static void *pcpu_alloc(size_t size, size_t align, bool reserved) +static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved) { static int warn_limit = 10; struct pcpu_chunk *chunk; @@ -1196,7 +1196,7 @@ fail_unlock_mutex: * RETURNS: * Percpu pointer to the allocated area on success, NULL on failure. */ -void *__alloc_percpu(size_t size, size_t align) +void __percpu *__alloc_percpu(size_t size, size_t align) { return pcpu_alloc(size, align, false); } @@ -1217,7 +1217,7 @@ EXPORT_SYMBOL_GPL(__alloc_percpu); * RETURNS: * Percpu pointer to the allocated area on success, NULL on failure. */ -void *__alloc_reserved_percpu(size_t size, size_t align) +void __percpu *__alloc_reserved_percpu(size_t size, size_t align) { return pcpu_alloc(size, align, true); } @@ -1269,7 +1269,7 @@ static void pcpu_reclaim(struct work_struct *work) * CONTEXT: * Can be called from atomic context. */ -void free_percpu(void *ptr) +void free_percpu(void __percpu *ptr) { void *addr; struct pcpu_chunk *chunk; diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c index d9714bdcb4a..392b9bb5bc0 100644 --- a/mm/sparse-vmemmap.c +++ b/mm/sparse-vmemmap.c @@ -40,9 +40,11 @@ static void * __init_refok __earlyonly_bootmem_alloc(int node, unsigned long align, unsigned long goal) { - return __alloc_bootmem_node(NODE_DATA(node), size, align, goal); + return __alloc_bootmem_node_high(NODE_DATA(node), size, align, goal); } +static void *vmemmap_buf; +static void *vmemmap_buf_end; void * __meminit vmemmap_alloc_block(unsigned long size, int node) { @@ -64,6 +66,24 @@ void * __meminit vmemmap_alloc_block(unsigned long size, int node) __pa(MAX_DMA_ADDRESS)); } +/* need to make sure size is all the same during early stage */ +void * __meminit vmemmap_alloc_block_buf(unsigned long size, int node) +{ + void *ptr; + + if (!vmemmap_buf) + return vmemmap_alloc_block(size, node); + + /* take the from buf */ + ptr = (void *)ALIGN((unsigned long)vmemmap_buf, size); + if (ptr + size > vmemmap_buf_end) + return vmemmap_alloc_block(size, node); + + vmemmap_buf = ptr + size; + + return ptr; +} + void __meminit vmemmap_verify(pte_t *pte, int node, unsigned long start, unsigned long end) { @@ -80,7 +100,7 @@ pte_t * __meminit vmemmap_pte_populate(pmd_t *pmd, unsigned long addr, int node) pte_t *pte = pte_offset_kernel(pmd, addr); if (pte_none(*pte)) { pte_t entry; - void *p = vmemmap_alloc_block(PAGE_SIZE, node); + void *p = vmemmap_alloc_block_buf(PAGE_SIZE, node); if (!p) return NULL; entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL); @@ -163,3 +183,55 @@ struct page * __meminit sparse_mem_map_populate(unsigned long pnum, int nid) return map; } + +void __init sparse_mem_maps_populate_node(struct page **map_map, + unsigned long pnum_begin, + unsigned long pnum_end, + unsigned long map_count, int nodeid) +{ + unsigned long pnum; + unsigned long size = sizeof(struct page) * PAGES_PER_SECTION; + void *vmemmap_buf_start; + + size = ALIGN(size, PMD_SIZE); + vmemmap_buf_start = __earlyonly_bootmem_alloc(nodeid, size * map_count, + PMD_SIZE, __pa(MAX_DMA_ADDRESS)); + + if (vmemmap_buf_start) { + vmemmap_buf = vmemmap_buf_start; + vmemmap_buf_end = vmemmap_buf_start + size * map_count; + } + + for (pnum = pnum_begin; pnum < pnum_end; pnum++) { + struct mem_section *ms; + + if (!present_section_nr(pnum)) + continue; + + map_map[pnum] = sparse_mem_map_populate(pnum, nodeid); + if (map_map[pnum]) + continue; + ms = __nr_to_section(pnum); + printk(KERN_ERR "%s: sparsemem memory map backing failed " + "some memory will not be available.\n", __func__); + ms->section_mem_map = 0; + } + + if (vmemmap_buf_start) { + /* need to free left buf */ +#ifdef CONFIG_NO_BOOTMEM + free_early(__pa(vmemmap_buf_start), __pa(vmemmap_buf_end)); + if (vmemmap_buf_start < vmemmap_buf) { + char name[15]; + + snprintf(name, sizeof(name), "MEMMAP %d", nodeid); + reserve_early_without_check(__pa(vmemmap_buf_start), + __pa(vmemmap_buf), name); + } +#else + free_bootmem(__pa(vmemmap_buf), vmemmap_buf_end - vmemmap_buf); +#endif + vmemmap_buf = NULL; + vmemmap_buf_end = NULL; + } +} diff --git a/mm/sparse.c b/mm/sparse.c index 6ce4aab69e9..22896d58913 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -271,7 +271,8 @@ static unsigned long *__kmalloc_section_usemap(void) #ifdef CONFIG_MEMORY_HOTREMOVE static unsigned long * __init -sparse_early_usemap_alloc_pgdat_section(struct pglist_data *pgdat) +sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat, + unsigned long count) { unsigned long section_nr; @@ -286,7 +287,7 @@ sparse_early_usemap_alloc_pgdat_section(struct pglist_data *pgdat) * this problem. */ section_nr = pfn_to_section_nr(__pa(pgdat) >> PAGE_SHIFT); - return alloc_bootmem_section(usemap_size(), section_nr); + return alloc_bootmem_section(usemap_size() * count, section_nr); } static void __init check_usemap_section_nr(int nid, unsigned long *usemap) @@ -329,7 +330,8 @@ static void __init check_usemap_section_nr(int nid, unsigned long *usemap) } #else static unsigned long * __init -sparse_early_usemap_alloc_pgdat_section(struct pglist_data *pgdat) +sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat, + unsigned long count) { return NULL; } @@ -339,27 +341,40 @@ static void __init check_usemap_section_nr(int nid, unsigned long *usemap) } #endif /* CONFIG_MEMORY_HOTREMOVE */ -static unsigned long *__init sparse_early_usemap_alloc(unsigned long pnum) +static void __init sparse_early_usemaps_alloc_node(unsigned long**usemap_map, + unsigned long pnum_begin, + unsigned long pnum_end, + unsigned long usemap_count, int nodeid) { - unsigned long *usemap; - struct mem_section *ms = __nr_to_section(pnum); - int nid = sparse_early_nid(ms); - - usemap = sparse_early_usemap_alloc_pgdat_section(NODE_DATA(nid)); - if (usemap) - return usemap; + void *usemap; + unsigned long pnum; + int size = usemap_size(); - usemap = alloc_bootmem_node(NODE_DATA(nid), usemap_size()); + usemap = sparse_early_usemaps_alloc_pgdat_section(NODE_DATA(nodeid), + usemap_count); if (usemap) { - check_usemap_section_nr(nid, usemap); - return usemap; + for (pnum = pnum_begin; pnum < pnum_end; pnum++) { + if (!present_section_nr(pnum)) + continue; + usemap_map[pnum] = usemap; + usemap += size; + } + return; } - /* Stupid: suppress gcc warning for SPARSEMEM && !NUMA */ - nid = 0; + usemap = alloc_bootmem_node(NODE_DATA(nodeid), size * usemap_count); + if (usemap) { + for (pnum = pnum_begin; pnum < pnum_end; pnum++) { + if (!present_section_nr(pnum)) + continue; + usemap_map[pnum] = usemap; + usemap += size; + check_usemap_section_nr(nodeid, usemap_map[pnum]); + } + return; + } printk(KERN_WARNING "%s: allocation failed\n", __func__); - return NULL; } #ifndef CONFIG_SPARSEMEM_VMEMMAP @@ -375,8 +390,65 @@ struct page __init *sparse_mem_map_populate(unsigned long pnum, int nid) PAGE_ALIGN(sizeof(struct page) * PAGES_PER_SECTION)); return map; } +void __init sparse_mem_maps_populate_node(struct page **map_map, + unsigned long pnum_begin, + unsigned long pnum_end, + unsigned long map_count, int nodeid) +{ + void *map; + unsigned long pnum; + unsigned long size = sizeof(struct page) * PAGES_PER_SECTION; + + map = alloc_remap(nodeid, size * map_count); + if (map) { + for (pnum = pnum_begin; pnum < pnum_end; pnum++) { + if (!present_section_nr(pnum)) + continue; + map_map[pnum] = map; + map += size; + } + return; + } + + size = PAGE_ALIGN(size); + map = alloc_bootmem_pages_node(NODE_DATA(nodeid), size * map_count); + if (map) { + for (pnum = pnum_begin; pnum < pnum_end; pnum++) { + if (!present_section_nr(pnum)) + continue; + map_map[pnum] = map; + map += size; + } + return; + } + + /* fallback */ + for (pnum = pnum_begin; pnum < pnum_end; pnum++) { + struct mem_section *ms; + + if (!present_section_nr(pnum)) + continue; + map_map[pnum] = sparse_mem_map_populate(pnum, nodeid); + if (map_map[pnum]) + continue; + ms = __nr_to_section(pnum); + printk(KERN_ERR "%s: sparsemem memory map backing failed " + "some memory will not be available.\n", __func__); + ms->section_mem_map = 0; + } +} #endif /* !CONFIG_SPARSEMEM_VMEMMAP */ +#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER +static void __init sparse_early_mem_maps_alloc_node(struct page **map_map, + unsigned long pnum_begin, + unsigned long pnum_end, + unsigned long map_count, int nodeid) +{ + sparse_mem_maps_populate_node(map_map, pnum_begin, pnum_end, + map_count, nodeid); +} +#else static struct page __init *sparse_early_mem_map_alloc(unsigned long pnum) { struct page *map; @@ -392,10 +464,12 @@ static struct page __init *sparse_early_mem_map_alloc(unsigned long pnum) ms->section_mem_map = 0; return NULL; } +#endif void __attribute__((weak)) __meminit vmemmap_populate_print_last(void) { } + /* * Allocate the accumulated non-linear sections, allocate a mem_map * for each and record the physical to section mapping. @@ -407,6 +481,14 @@ void __init sparse_init(void) unsigned long *usemap; unsigned long **usemap_map; int size; + int nodeid_begin = 0; + unsigned long pnum_begin = 0; + unsigned long usemap_count; +#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER + unsigned long map_count; + int size2; + struct page **map_map; +#endif /* * map is using big page (aka 2M in x86 64 bit) @@ -425,10 +507,81 @@ void __init sparse_init(void) panic("can not allocate usemap_map\n"); for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) { + struct mem_section *ms; + if (!present_section_nr(pnum)) continue; - usemap_map[pnum] = sparse_early_usemap_alloc(pnum); + ms = __nr_to_section(pnum); + nodeid_begin = sparse_early_nid(ms); + pnum_begin = pnum; + break; } + usemap_count = 1; + for (pnum = pnum_begin + 1; pnum < NR_MEM_SECTIONS; pnum++) { + struct mem_section *ms; + int nodeid; + + if (!present_section_nr(pnum)) + continue; + ms = __nr_to_section(pnum); + nodeid = sparse_early_nid(ms); + if (nodeid == nodeid_begin) { + usemap_count++; + continue; + } + /* ok, we need to take cake of from pnum_begin to pnum - 1*/ + sparse_early_usemaps_alloc_node(usemap_map, pnum_begin, pnum, + usemap_count, nodeid_begin); + /* new start, update count etc*/ + nodeid_begin = nodeid; + pnum_begin = pnum; + usemap_count = 1; + } + /* ok, last chunk */ + sparse_early_usemaps_alloc_node(usemap_map, pnum_begin, NR_MEM_SECTIONS, + usemap_count, nodeid_begin); + +#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER + size2 = sizeof(struct page *) * NR_MEM_SECTIONS; + map_map = alloc_bootmem(size2); + if (!map_map) + panic("can not allocate map_map\n"); + + for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) { + struct mem_section *ms; + + if (!present_section_nr(pnum)) + continue; + ms = __nr_to_section(pnum); + nodeid_begin = sparse_early_nid(ms); + pnum_begin = pnum; + break; + } + map_count = 1; + for (pnum = pnum_begin + 1; pnum < NR_MEM_SECTIONS; pnum++) { + struct mem_section *ms; + int nodeid; + + if (!present_section_nr(pnum)) + continue; + ms = __nr_to_section(pnum); + nodeid = sparse_early_nid(ms); + if (nodeid == nodeid_begin) { + map_count++; + continue; + } + /* ok, we need to take cake of from pnum_begin to pnum - 1*/ + sparse_early_mem_maps_alloc_node(map_map, pnum_begin, pnum, + map_count, nodeid_begin); + /* new start, update count etc*/ + nodeid_begin = nodeid; + pnum_begin = pnum; + map_count = 1; + } + /* ok, last chunk */ + sparse_early_mem_maps_alloc_node(map_map, pnum_begin, NR_MEM_SECTIONS, + map_count, nodeid_begin); +#endif for (pnum = 0; pnum < NR_MEM_SECTIONS; pnum++) { if (!present_section_nr(pnum)) @@ -438,7 +591,11 @@ void __init sparse_init(void) if (!usemap) continue; +#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER + map = map_map[pnum]; +#else map = sparse_early_mem_map_alloc(pnum); +#endif if (!map) continue; @@ -448,6 +605,9 @@ void __init sparse_init(void) vmemmap_populate_print_last(); +#ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER + free_bootmem(__pa(map_map), size2); +#endif free_bootmem(__pa(usemap_map), size); } diff --git a/mm/vmstat.c b/mm/vmstat.c index 6051fbab67b..fc5aa183bc4 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -139,7 +139,8 @@ static void refresh_zone_stat_thresholds(void) threshold = calculate_threshold(zone); for_each_online_cpu(cpu) - zone_pcp(zone, cpu)->stat_threshold = threshold; + per_cpu_ptr(zone->pageset, cpu)->stat_threshold + = threshold; } } @@ -149,7 +150,8 @@ static void refresh_zone_stat_thresholds(void) void __mod_zone_page_state(struct zone *zone, enum zone_stat_item item, int delta) { - struct per_cpu_pageset *pcp = zone_pcp(zone, smp_processor_id()); + struct per_cpu_pageset *pcp = this_cpu_ptr(zone->pageset); + s8 *p = pcp->vm_stat_diff + item; long x; @@ -202,7 +204,7 @@ EXPORT_SYMBOL(mod_zone_page_state); */ void __inc_zone_state(struct zone *zone, enum zone_stat_item item) { - struct per_cpu_pageset *pcp = zone_pcp(zone, smp_processor_id()); + struct per_cpu_pageset *pcp = this_cpu_ptr(zone->pageset); s8 *p = pcp->vm_stat_diff + item; (*p)++; @@ -223,7 +225,7 @@ EXPORT_SYMBOL(__inc_zone_page_state); void __dec_zone_state(struct zone *zone, enum zone_stat_item item) { - struct per_cpu_pageset *pcp = zone_pcp(zone, smp_processor_id()); + struct per_cpu_pageset *pcp = this_cpu_ptr(zone->pageset); s8 *p = pcp->vm_stat_diff + item; (*p)--; @@ -300,7 +302,7 @@ void refresh_cpu_vm_stats(int cpu) for_each_populated_zone(zone) { struct per_cpu_pageset *p; - p = zone_pcp(zone, cpu); + p = per_cpu_ptr(zone->pageset, cpu); for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++) if (p->vm_stat_diff[i]) { @@ -741,7 +743,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat, for_each_online_cpu(i) { struct per_cpu_pageset *pageset; - pageset = zone_pcp(zone, i); + pageset = per_cpu_ptr(zone->pageset, i); seq_printf(m, "\n cpu: %i" "\n count: %i" @@ -906,6 +908,7 @@ static int __cpuinit vmstat_cpuup_callback(struct notifier_block *nfb, case CPU_ONLINE: case CPU_ONLINE_FROZEN: start_cpu_timer(cpu); + node_set_state(cpu_to_node(cpu), N_CPU); break; case CPU_DOWN_PREPARE: case CPU_DOWN_PREPARE_FROZEN: |