From abd1b6d65fc49b7b95724c94a4e5892a3b3fc618 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:03:01 -0700 Subject: mm/tile: use common help functions to free reserved pages Use common help functions to free reserved pages. Signed-off-by: Jiang Liu Cc: Chris Metcalf Cc: Wen Congyang Cc: "H. Peter Anvin" Cc: "Michael S. Tsirkin" Cc: Cc: Arnd Bergmann Cc: Catalin Marinas Cc: David Howells Cc: Geert Uytterhoeven Cc: Ingo Molnar Cc: Jeremy Fitzhardinge Cc: Jianguo Wu Cc: Joonsoo Kim Cc: Kamezawa Hiroyuki Cc: Konrad Rzeszutek Wilk Cc: Marek Szyprowski Cc: Mel Gorman Cc: Michel Lespinasse Cc: Minchan Kim Cc: Rik van Riel Cc: Rusty Russell Cc: Tang Chen Cc: Tejun Heo Cc: Thomas Gleixner Cc: Will Deacon Cc: Yasuaki Ishimatsu Cc: Yinghai Lu Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/tile/mm/init.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'arch/tile/mm') diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index 2749515a054..ccfeb3f2e76 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -720,7 +720,7 @@ static void __init init_free_pfn_range(unsigned long start, unsigned long end) } init_page_count(page); __free_pages(page, order); - totalram_pages += count; + adjust_managed_page_count(page, count); page += count; pfn += count; @@ -1024,16 +1024,13 @@ static void free_init_pages(char *what, unsigned long begin, unsigned long end) pte_clear(&init_mm, addr, ptep); continue; } - __ClearPageReserved(page); - init_page_count(page); if (pte_huge(*ptep)) BUG_ON(!kdata_huge); else set_pte_at(&init_mm, addr, ptep, pfn_pte(pfn, PAGE_KERNEL)); memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE); - free_page(addr); - totalram_pages++; + free_reserved_page(page); } pr_info("Freeing %s: %ldk freed\n", what, (end - begin) >> 10); } -- cgit v1.2.3-70-g09d2 From 0c988534737a358fdff42fcce78f0ff1a12dbfc5 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:03:24 -0700 Subject: mm: concentrate modification of totalram_pages into the mm core Concentrate code to modify totalram_pages into the mm core, so the arch memory initialized code doesn't need to take care of it. With these changes applied, only following functions from mm core modify global variable totalram_pages: free_bootmem_late(), free_all_bootmem(), free_all_bootmem_node(), adjust_managed_page_count(). With this patch applied, it will be much more easier for us to keep totalram_pages and zone->managed_pages in consistence. Signed-off-by: Jiang Liu Acked-by: David Howells Cc: "H. Peter Anvin" Cc: "Michael S. Tsirkin" Cc: Cc: Arnd Bergmann Cc: Catalin Marinas Cc: Chris Metcalf Cc: Geert Uytterhoeven Cc: Ingo Molnar Cc: Jeremy Fitzhardinge Cc: Jianguo Wu Cc: Joonsoo Kim Cc: Kamezawa Hiroyuki Cc: Konrad Rzeszutek Wilk Cc: Marek Szyprowski Cc: Mel Gorman Cc: Michel Lespinasse Cc: Minchan Kim Cc: Rik van Riel Cc: Rusty Russell Cc: Tang Chen Cc: Tejun Heo Cc: Thomas Gleixner Cc: Wen Congyang Cc: Will Deacon Cc: Yasuaki Ishimatsu Cc: Yinghai Lu Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/mm/init.c | 2 +- arch/alpha/mm/numa.c | 2 +- arch/arc/mm/init.c | 2 +- arch/arm/mm/init.c | 3 +-- arch/arm64/mm/init.c | 2 +- arch/avr32/mm/init.c | 2 -- arch/blackfin/mm/init.c | 2 +- arch/c6x/mm/init.c | 2 +- arch/cris/mm/init.c | 2 +- arch/frv/mm/init.c | 2 +- arch/h8300/mm/init.c | 2 +- arch/hexagon/mm/init.c | 2 +- arch/ia64/mm/init.c | 2 +- arch/m32r/mm/init.c | 2 +- arch/m68k/mm/init.c | 4 ++-- arch/metag/mm/init.c | 5 +---- arch/microblaze/mm/init.c | 2 +- arch/mips/mm/init.c | 2 +- arch/mips/sgi-ip27/ip27-memory.c | 2 +- arch/mn10300/mm/init.c | 2 +- arch/openrisc/mm/init.c | 2 +- arch/parisc/mm/init.c | 4 ++-- arch/powerpc/mm/mem.c | 5 ++--- arch/s390/mm/init.c | 2 +- arch/score/mm/init.c | 2 +- arch/sh/mm/init.c | 2 +- arch/sparc/mm/init_32.c | 3 +-- arch/sparc/mm/init_64.c | 2 +- arch/tile/mm/init.c | 2 +- arch/um/kernel/mem.c | 2 +- arch/unicore32/mm/init.c | 2 +- arch/x86/mm/init_32.c | 2 +- arch/x86/mm/init_64.c | 2 +- arch/xtensa/mm/init.c | 2 +- mm/bootmem.c | 9 ++++++++- mm/nobootmem.c | 7 ++++++- 36 files changed, 50 insertions(+), 46 deletions(-) (limited to 'arch/tile/mm') diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index 218c29c14bb..eee47a453d7 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -309,7 +309,7 @@ void __init mem_init(void) { max_mapnr = num_physpages = max_low_pfn; - totalram_pages += free_all_bootmem(); + free_all_bootmem(); high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); printk_memory_info(); diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index 33885048fa3..857452c13c4 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -334,7 +334,7 @@ void __init mem_init(void) /* * This will free up the bootmem, ie, slot 0 memory */ - totalram_pages += free_all_bootmem_node(NODE_DATA(nid)); + free_all_bootmem_node(NODE_DATA(nid)); pfn = NODE_DATA(nid)->node_start_pfn; for (i = 0; i < node_spanned_pages(nid); i++, pfn++) diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index f9c70771209..c668a600f65 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -111,7 +111,7 @@ void __init mem_init(void) high_memory = (void *)(CONFIG_LINUX_LINK_BASE + arc_mem_sz); - totalram_pages = free_all_bootmem(); + free_all_bootmem(); /* count all reserved pages [kernel code/data/mem_map..] */ reserved_pages = 0; diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 2070651c1bb..06e9ce17d1d 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -596,8 +596,7 @@ void __init mem_init(void) /* this will put all unused low memory onto the freelists */ free_unused_memmap(&meminfo); - - totalram_pages += free_all_bootmem(); + free_all_bootmem(); #ifdef CONFIG_SA1111 /* now that our DMA memory is actually so designated, we can free it */ diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index a398eb9018b..93de98afedd 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -284,7 +284,7 @@ void __init mem_init(void) free_unused_memmap(); #endif - totalram_pages += free_all_bootmem(); + free_all_bootmem(); reserved_pages = free_pages = 0; diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index b079e04f695..af6890fd731 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -117,8 +117,6 @@ void __init mem_init(void) if (pgdat->node_spanned_pages != 0) node_pages = free_all_bootmem_node(pgdat); - totalram_pages += node_pages; - for (i = 0; i < node_pages; i++) if (PageReserved(pgdat->node_mem_map + i)) reservedpages++; diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index fa241f5a7dc..c73d80ef564 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -104,7 +104,7 @@ void __init mem_init(void) printk(KERN_DEBUG "Kernel managed physical pages: %lu\n", num_physpages); /* This will put all low memory onto the freelists. */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); reservedpages = 0; for (tmp = ARCH_PFN_OFFSET; tmp < max_mapnr; tmp++) diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c index 3987a20fdee..c9ae8ce731d 100644 --- a/arch/c6x/mm/init.c +++ b/arch/c6x/mm/init.c @@ -65,7 +65,7 @@ void __init mem_init(void) high_memory = (void *)(memory_end & PAGE_MASK); /* this will put all memory onto the freelists */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); codek = (_etext - _stext) >> 10; datak = (_end - _sdata) >> 10; diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c index 8fec26392ae..52b8b56ae30 100644 --- a/arch/cris/mm/init.c +++ b/arch/cris/mm/init.c @@ -33,7 +33,7 @@ mem_init(void) max_mapnr = num_physpages = max_low_pfn - min_low_pfn; /* this will put all memory onto the freelists */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); reservedpages = 0; for (tmp = 0; tmp < max_mapnr; tmp++) { diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c index 8ba9d22d0d9..3dcc88803a4 100644 --- a/arch/frv/mm/init.c +++ b/arch/frv/mm/init.c @@ -123,7 +123,7 @@ void __init mem_init(void) int codek = 0, datak = 0; /* this will put all low memory onto the freelists */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); #ifdef CONFIG_MMU for (loop = 0 ; loop < npages ; loop++) diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c index c831f1dba13..a506dd4724e 100644 --- a/arch/h8300/mm/init.c +++ b/arch/h8300/mm/init.c @@ -140,7 +140,7 @@ void __init mem_init(void) max_mapnr = num_physpages = MAP_NR(high_memory); /* this will put all low memory onto the freelists */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); codek = (_etext - _stext) >> 10; datak = (__bss_stop - _sdata) >> 10; diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 2561d259a29..0ab5b4350e9 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -70,7 +70,7 @@ unsigned long long kmap_generation; void __init mem_init(void) { /* No idea where this is actually declared. Seems to evade LXR. */ - totalram_pages += free_all_bootmem(); + free_all_bootmem(); num_physpages = bootmem_lastpg-ARCH_PFN_OFFSET; printk(KERN_INFO "totalram_pages = %ld\n", totalram_pages); diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index f8a4f38b0ad..d141f7ea0be 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -622,7 +622,7 @@ mem_init (void) for_each_online_pgdat(pgdat) if (pgdat->bdata->node_bootmem_map) - totalram_pages += free_all_bootmem_node(pgdat); + free_all_bootmem_node(pgdat); reserved_pages = 0; efi_memmap_walk(count_reserved_pages, &reserved_pages); diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index cca87d91843..a501838233a 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -158,7 +158,7 @@ void __init mem_init(void) /* this will put all low memory onto the freelists */ for_each_online_node(nid) - totalram_pages += free_all_bootmem_node(NODE_DATA(nid)); + free_all_bootmem_node(NODE_DATA(nid)); reservedpages = reservedpages_count() - hole_pages; codesize = (unsigned long) &_etext - (unsigned long)&_text; diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index ab0b54ca5d8..614c60a0445 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -155,11 +155,11 @@ void __init mem_init(void) int i; /* this will put all memory onto the freelists */ - totalram_pages = num_physpages = 0; + num_physpages = 0; for_each_online_pgdat(pgdat) { num_physpages += pgdat->node_present_pages; - totalram_pages += free_all_bootmem_node(pgdat); + free_all_bootmem_node(pgdat); for (i = 0; i < pgdat->node_spanned_pages; i++) { struct page *page = pgdat->node_mem_map + i; char *addr = page_to_virt(page); diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c index d7595f58fad..ce81d7c4398 100644 --- a/arch/metag/mm/init.c +++ b/arch/metag/mm/init.c @@ -393,14 +393,11 @@ void __init mem_init(void) for_each_online_node(nid) { pg_data_t *pgdat = NODE_DATA(nid); - unsigned long node_pages = 0; num_physpages += pgdat->node_present_pages; if (pgdat->node_spanned_pages) - node_pages = free_all_bootmem_node(pgdat); - - totalram_pages += node_pages; + free_all_bootmem_node(pgdat); } pr_info("Memory: %luk/%luk available\n", diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index d149e0ebb76..b384cbc2c8f 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -252,7 +252,7 @@ void __init mem_init(void) high_memory = (void *)__va(memory_start + lowmem_size - 1); /* this will put all memory onto the freelists */ - totalram_pages += free_all_bootmem(); + free_all_bootmem(); for_each_online_pgdat(pgdat) { unsigned long i; diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 268f2a94031..e7333f15b1b 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -374,7 +374,7 @@ void __init mem_init(void) #endif high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); - totalram_pages += free_all_bootmem(); + free_all_bootmem(); setup_zero_pages(); /* Setup zeroed pages. */ reservedpages = ram = 0; diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index 1230f56429d..aecac4a0836 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -489,7 +489,7 @@ void __init mem_init(void) /* * This will free up the bootmem, ie, slot 0 memory. */ - totalram_pages += free_all_bootmem_node(NODE_DATA(node)); + free_all_bootmem_node(NODE_DATA(node)); } setup_zero_pages(); /* This comes from node 0 */ diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c index e19049d1f2b..7590d91627f 100644 --- a/arch/mn10300/mm/init.c +++ b/arch/mn10300/mm/init.c @@ -114,7 +114,7 @@ void __init mem_init(void) memset(empty_zero_page, 0, PAGE_SIZE); /* this will put all low memory onto the freelists */ - totalram_pages += free_all_bootmem(); + free_all_bootmem(); reservedpages = 0; for (tmp = 0; tmp < num_physpages; tmp++) diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c index c371e4a0fca..16c1e135cf3 100644 --- a/arch/openrisc/mm/init.c +++ b/arch/openrisc/mm/init.c @@ -207,7 +207,7 @@ static int __init free_pages_init(void) int reservedpages, pfn; /* this will put all low memory onto the freelists */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); reservedpages = 0; for (pfn = 0; pfn < max_low_pfn; pfn++) { diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index ebac7bd76b5..d8aaaf06ede 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -593,13 +593,13 @@ void __init mem_init(void) #ifndef CONFIG_DISCONTIGMEM max_mapnr = page_to_pfn(virt_to_page(high_memory - 1)) + 1; - totalram_pages += free_all_bootmem(); + free_all_bootmem(); #else { int i; for (i = 0; i < npmem_ranges; i++) - totalram_pages += free_all_bootmem_node(NODE_DATA(i)); + free_all_bootmem_node(NODE_DATA(i)); } #endif diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 7f47a05f55a..3bcfc0d0d32 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -318,13 +318,12 @@ void __init mem_init(void) for_each_online_node(nid) { if (NODE_DATA(nid)->node_spanned_pages != 0) { printk("freeing bootmem node %d\n", nid); - totalram_pages += - free_all_bootmem_node(NODE_DATA(nid)); + free_all_bootmem_node(NODE_DATA(nid)); } } #else max_mapnr = max_pfn; - totalram_pages += free_all_bootmem(); + free_all_bootmem(); #endif for_each_online_pgdat(pgdat) { for (i = 0; i < pgdat->node_spanned_pages; i++) { diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index bf01d18422e..a2aafe1b230 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -144,7 +144,7 @@ void __init mem_init(void) cmma_init(); /* this will put all low memory onto the freelists */ - totalram_pages += free_all_bootmem(); + free_all_bootmem(); setup_zero_pages(); /* Setup zeroed pages. */ reservedpages = 0; diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c index f5dd61eb454..a8b917742de 100644 --- a/arch/score/mm/init.c +++ b/arch/score/mm/init.c @@ -79,7 +79,7 @@ void __init mem_init(void) unsigned long tmp, ram = 0; high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); - totalram_pages += free_all_bootmem(); + free_all_bootmem(); setup_zero_page(); /* Setup zeroed pages. */ reservedpages = 0; diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index d3af56b7a09..fc0c8e1c32a 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -422,7 +422,7 @@ void __init mem_init(void) num_physpages += pgdat->node_present_pages; if (pgdat->node_spanned_pages) - totalram_pages += free_all_bootmem_node(pgdat); + free_all_bootmem_node(pgdat); node_high_memory = (void *)__va((pgdat->node_start_pfn + diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index d5f9c023826..a438abb5495 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -323,8 +323,7 @@ void __init mem_init(void) max_mapnr = last_valid_pfn - pfn_base; high_memory = __va(max_low_pfn << PAGE_SHIFT); - - totalram_pages = free_all_bootmem(); + free_all_bootmem(); for (i = 0; sp_banks[i].num_bytes != 0; i++) { unsigned long start_pfn = sp_banks[i].base_addr >> PAGE_SHIFT; diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 8269deb84ed..752d73837f9 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2061,7 +2061,7 @@ void __init mem_init(void) high_memory = __va(last_valid_pfn << PAGE_SHIFT); register_page_bootmem_info(); - totalram_pages = free_all_bootmem(); + free_all_bootmem(); /* We subtract one to account for the mem_map_zero page * allocated below. diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index ccfeb3f2e76..45ce26d4e47 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -846,7 +846,7 @@ void __init mem_init(void) set_max_mapnr_init(); /* this will put all bootmem onto the freelists */ - totalram_pages += free_all_bootmem(); + free_all_bootmem(); #ifndef CONFIG_64BIT /* count all remaining LOWMEM and give all HIGHMEM to page allocator */ diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 8ff0b7ae8ec..b0c763094ff 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -65,7 +65,7 @@ void __init mem_init(void) uml_reserved = brk_end; /* this will put all low memory onto the freelists */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); max_low_pfn = totalram_pages; #ifdef CONFIG_HIGHMEM setup_highmem(end_iomem, highmem); diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c index df9b8abcb6a..7d1356c466b 100644 --- a/arch/unicore32/mm/init.c +++ b/arch/unicore32/mm/init.c @@ -392,7 +392,7 @@ void __init mem_init(void) free_unused_memmap(&meminfo); /* this will put all unused low memory onto the freelists */ - totalram_pages += free_all_bootmem(); + free_all_bootmem(); reserved_pages = free_pages = 0; diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 3ac7e319918..9fa46baada2 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -759,7 +759,7 @@ void __init mem_init(void) set_highmem_pages_init(); /* this will put all low memory onto the freelists */ - totalram_pages += free_all_bootmem(); + free_all_bootmem(); reservedpages = 0; for (tmp = 0; tmp < max_low_pfn; tmp++) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index ec312a92b13..9577638f3ea 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -1054,7 +1054,7 @@ void __init mem_init(void) register_page_bootmem_info(); /* this will put all memory onto the freelists */ - totalram_pages = free_all_bootmem(); + free_all_bootmem(); absent_pages = absent_pages_in_range(0, max_pfn); reservedpages = max_pfn - totalram_pages - absent_pages; diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index 026d29bee30..663c1619562 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -184,7 +184,7 @@ void __init mem_init(void) #error HIGHGMEM not implemented in init.c #endif - totalram_pages += free_all_bootmem(); + free_all_bootmem(); reservedpages = ram = 0; for (tmp = 0; tmp < max_mapnr; tmp++) { diff --git a/mm/bootmem.c b/mm/bootmem.c index eb792323187..58609bbf584 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -271,9 +271,14 @@ void __init reset_all_zones_managed_pages(void) */ unsigned long __init free_all_bootmem_node(pg_data_t *pgdat) { + unsigned long pages; + register_page_bootmem_info_node(pgdat); reset_node_managed_pages(pgdat); - return free_all_bootmem_core(pgdat->bdata); + pages = free_all_bootmem_core(pgdat->bdata); + totalram_pages += pages; + + return pages; } /** @@ -291,6 +296,8 @@ unsigned long __init free_all_bootmem(void) list_for_each_entry(bdata, &bdata_list, list) total_pages += free_all_bootmem_core(bdata); + totalram_pages += total_pages; + return total_pages; } diff --git a/mm/nobootmem.c b/mm/nobootmem.c index 0ae8d91365a..61107cf55bb 100644 --- a/mm/nobootmem.c +++ b/mm/nobootmem.c @@ -165,6 +165,8 @@ void __init reset_all_zones_managed_pages(void) */ unsigned long __init free_all_bootmem(void) { + unsigned long pages; + reset_all_zones_managed_pages(); /* @@ -172,7 +174,10 @@ unsigned long __init free_all_bootmem(void) * because in some case like Node0 doesn't have RAM installed * low ram will be on Node1 */ - return free_low_memory_core_early(); + pages = free_low_memory_core_early(); + totalram_pages += pages; + + return pages; } /** -- cgit v1.2.3-70-g09d2 From 40a3b8df7be3b813cef7e32f74dea398274c2d47 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:03:39 -0700 Subject: tile: normalize global variables exported by vmlinux.lds Normalize global variables exported by vmlinux.lds to conform usage guidelines from include/asm-generic/sections.h. 1) Use _text to mark the start of the kernel image including the head text, and _stext to mark the start of the .text section. 2) Export mandatory global variables __init_begin and __init_end. Signed-off-by: Jiang Liu Acked-by: Chris Metcalf Cc: Rusty Russell Cc: Bjorn Helgaas Cc: "David S. Miller" Cc: Wen Congyang Cc: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/tile/include/asm/sections.h | 2 +- arch/tile/kernel/setup.c | 4 ++-- arch/tile/kernel/vmlinux.lds.S | 4 +++- arch/tile/mm/init.c | 2 +- 4 files changed, 7 insertions(+), 5 deletions(-) (limited to 'arch/tile/mm') diff --git a/arch/tile/include/asm/sections.h b/arch/tile/include/asm/sections.h index d062d463fca..7d8a935a923 100644 --- a/arch/tile/include/asm/sections.h +++ b/arch/tile/include/asm/sections.h @@ -34,7 +34,7 @@ extern char __sys_cmpxchg_grab_lock[]; extern char __start_atomic_asm_code[], __end_atomic_asm_code[]; #endif -/* Handle the discontiguity between _sdata and _stext. */ +/* Handle the discontiguity between _sdata and _text. */ static inline int arch_is_kernel_data(unsigned long addr) { return addr >= (unsigned long)_sdata && diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 7a5aa1a7864..41818e3ce97 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -307,8 +307,8 @@ static void __cpuinit store_permanent_mappings(void) hv_store_mapping(addr, pages << PAGE_SHIFT, pa); } - hv_store_mapping((HV_VirtAddr)_stext, - (uint32_t)(_einittext - _stext), 0); + hv_store_mapping((HV_VirtAddr)_text, + (uint32_t)(_einittext - _text), 0); } /* diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S index 631f10de12f..a13ed902afb 100644 --- a/arch/tile/kernel/vmlinux.lds.S +++ b/arch/tile/kernel/vmlinux.lds.S @@ -27,7 +27,6 @@ SECTIONS .intrpt1 (LOAD_OFFSET) : AT ( 0 ) /* put at the start of physical memory */ { _text = .; - _stext = .; *(.intrpt1) } :intrpt1 =0 @@ -36,6 +35,7 @@ SECTIONS /* Now the real code */ . = ALIGN(0x20000); + _stext = .; .text : AT (ADDR(.text) - LOAD_OFFSET) { HEAD_TEXT SCHED_TEXT @@ -58,11 +58,13 @@ SECTIONS #define LOAD_OFFSET PAGE_OFFSET . = ALIGN(PAGE_SIZE); + __init_begin = .; VMLINUX_SYMBOL(_sinitdata) = .; INIT_DATA_SECTION(16) :data =0 PERCPU_SECTION(L2_CACHE_BYTES) . = ALIGN(PAGE_SIZE); VMLINUX_SYMBOL(_einitdata) = .; + __init_end = .; _sdata = .; /* Start of data section */ diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index 45ce26d4e47..f2ac2f40577 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -562,7 +562,7 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) prot = ktext_set_nocache(prot); } - BUG_ON(address != (unsigned long)_stext); + BUG_ON(address != (unsigned long)_text); pte = NULL; for (; address < (unsigned long)_einittext; pfn++, address += PAGE_SIZE) { -- cgit v1.2.3-70-g09d2 From 3f29c33194d3b5fffdccc89665982a36b408b6f9 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:04:15 -0700 Subject: mm/tile: prepare for removing num_physpages and simplify mem_init() Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu Acked-by: Chris Metcalf Cc: Bjorn Helgaas Cc: "David S. Miller" Cc: Wen Congyang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/tile/kernel/setup.c | 16 ++++++++-------- arch/tile/mm/init.c | 15 +-------------- 2 files changed, 9 insertions(+), 22 deletions(-) (limited to 'arch/tile/mm') diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 41818e3ce97..68b542677f6 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -329,6 +329,7 @@ static void __init setup_memory(void) #if defined(CONFIG_HIGHMEM) || defined(__tilegx__) long lowmem_pages; #endif + unsigned long physpages = 0; /* We are using a char to hold the cpu_2_node[] mapping */ BUILD_BUG_ON(MAX_NUMNODES > 127); @@ -388,8 +389,8 @@ static void __init setup_memory(void) continue; } } - if (num_physpages + PFN_DOWN(range.size) > maxmem_pfn) { - int max_size = maxmem_pfn - num_physpages; + if (physpages + PFN_DOWN(range.size) > maxmem_pfn) { + int max_size = maxmem_pfn - physpages; if (max_size > 0) { pr_err("Maxmem reduced node %d to %d pages\n", i, max_size); @@ -446,7 +447,7 @@ static void __init setup_memory(void) node_start_pfn[i] = start; node_end_pfn[i] = end; node_controller[i] = range.controller; - num_physpages += size; + physpages += size; max_pfn = end; /* Mark node as online */ @@ -465,7 +466,7 @@ static void __init setup_memory(void) * we're willing to use at 8 million pages (32GB of 4KB pages). */ cap = 8 * 1024 * 1024; /* 8 million pages */ - if (num_physpages > cap) { + if (physpages > cap) { int num_nodes = num_online_nodes(); int cap_each = cap / num_nodes; unsigned long dropped_pages = 0; @@ -476,10 +477,10 @@ static void __init setup_memory(void) node_end_pfn[i] = node_start_pfn[i] + cap_each; } } - num_physpages -= dropped_pages; + physpages -= dropped_pages; pr_warning("Only using %ldMB memory;" " ignoring %ldMB.\n", - num_physpages >> (20 - PAGE_SHIFT), + physpages >> (20 - PAGE_SHIFT), dropped_pages >> (20 - PAGE_SHIFT)); pr_warning("Consider using a larger page size.\n"); } @@ -497,7 +498,7 @@ static void __init setup_memory(void) lowmem_pages = (mappable_physpages > MAXMEM_PFN) ? MAXMEM_PFN : mappable_physpages; - highmem_pages = (long) (num_physpages - lowmem_pages); + highmem_pages = (long) (physpages - lowmem_pages); pr_notice("%ldMB HIGHMEM available.\n", pages_to_mb(highmem_pages > 0 ? highmem_pages : 0)); @@ -514,7 +515,6 @@ static void __init setup_memory(void) pr_warning("Use a HIGHMEM enabled kernel.\n"); max_low_pfn = MAXMEM_PFN; max_pfn = MAXMEM_PFN; - num_physpages = MAXMEM_PFN; node_end_pfn[0] = MAXMEM_PFN; } else { pr_notice("%ldMB memory available.\n", diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index f2ac2f40577..e182958c707 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -821,7 +821,6 @@ static void __init set_max_mapnr_init(void) void __init mem_init(void) { - int codesize, datasize, initsize; int i; #ifndef __tilegx__ void *last; @@ -853,19 +852,7 @@ void __init mem_init(void) set_non_bootmem_pages_init(); #endif - codesize = (unsigned long)&_etext - (unsigned long)&_text; - datasize = (unsigned long)&_end - (unsigned long)&_sdata; - initsize = (unsigned long)&_einittext - (unsigned long)&_sinittext; - initsize += (unsigned long)&_einitdata - (unsigned long)&_sinitdata; - - pr_info("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), - num_physpages << (PAGE_SHIFT-10), - codesize >> 10, - datasize >> 10, - initsize >> 10, - (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)) - ); + mem_init_print_info(NULL); /* * In debug mode, dump some interesting memory mappings. -- cgit v1.2.3-70-g09d2