diff options
Diffstat (limited to 'mm/mm_init.c')
| -rw-r--r-- | mm/mm_init.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c index 7f7f9c677854..10bf560302c4 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -259,6 +259,8 @@ static int __init cmdline_parse_core(char *p, unsigned long *core, return 0; } +bool mirrored_kernelcore __initdata_memblock; + /* * kernelcore=size sets the amount of memory for use for allocations that * cannot be reclaimed or migrated. @@ -2328,6 +2330,28 @@ void __init init_cma_reserved_pageblock(struct page *page) } #endif +void set_zone_contiguous(struct zone *zone) +{ + unsigned long block_start_pfn = zone->zone_start_pfn; + unsigned long block_end_pfn; + + block_end_pfn = pageblock_end_pfn(block_start_pfn); + for (; block_start_pfn < zone_end_pfn(zone); + block_start_pfn = block_end_pfn, + block_end_pfn += pageblock_nr_pages) { + + block_end_pfn = min(block_end_pfn, zone_end_pfn(zone)); + + if (!__pageblock_pfn_to_page(block_start_pfn, + block_end_pfn, zone)) + return; + cond_resched(); + } + + /* We confirm that there is no hole */ + zone->contiguous = true; +} + void __init page_alloc_init_late(void) { struct zone *zone; @@ -2368,6 +2392,8 @@ void __init page_alloc_init_late(void) /* Initialize page ext after all struct pages are initialized. */ if (deferred_struct_pages) page_ext_init(); + + page_alloc_sysctl_init(); } #ifndef __HAVE_ARCH_RESERVED_KERNEL_PAGES @@ -2541,6 +2567,12 @@ void __init memblock_free_pages(struct page *page, unsigned long pfn, __free_pages_core(page, order); } +DEFINE_STATIC_KEY_MAYBE(CONFIG_INIT_ON_ALLOC_DEFAULT_ON, init_on_alloc); +EXPORT_SYMBOL(init_on_alloc); + +DEFINE_STATIC_KEY_MAYBE(CONFIG_INIT_ON_FREE_DEFAULT_ON, init_on_free); +EXPORT_SYMBOL(init_on_free); + static bool _init_on_alloc_enabled_early __read_mostly = IS_ENABLED(CONFIG_INIT_ON_ALLOC_DEFAULT_ON); static int __init early_init_on_alloc(char *buf) |