Subject: + mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init.patch added to -mm tree To: liuj97@xxxxxxxxx,arnd@xxxxxxxx,blogic@xxxxxxxxxxx,david.daney@xxxxxxxxxx,gregkh@xxxxxxxxxxxxxxxxxxx,jiang.liu@xxxxxxxxxx,jkosina@xxxxxxx,minchan@xxxxxxxxxx,ralf@xxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Fri, 31 May 2013 13:32:51 -0700 The patch titled Subject: mm/MIPS: prepare for removing num_physpages and simplify mem_init() has been added to the -mm tree. Its filename is mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Jiang Liu <liuj97@xxxxxxxxx> Subject: mm/MIPS: prepare for removing num_physpages and simplify mem_init() Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: David Daney <david.daney@xxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Jiri Kosina <jkosina@xxxxxxx> Cc: John Crispin <blogic@xxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Minchan Kim <minchan@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/mips/mm/init.c | 57 +++++++++-------------------- arch/mips/pci/pci-lantiq.c | 2 - arch/mips/sgi-ip27/ip27-memory.c | 21 +--------- 3 files changed, 21 insertions(+), 59 deletions(-) diff -puN arch/mips/mm/init.c~mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init arch/mips/mm/init.c --- a/arch/mips/mm/init.c~mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init +++ a/arch/mips/mm/init.c @@ -359,11 +359,24 @@ void __init paging_init(void) static struct kcore_list kcore_kseg0; #endif -void __init mem_init(void) +static inline void mem_init_free_highmem(void) { - unsigned long codesize, reservedpages, datasize, initsize; - unsigned long tmp, ram; +#ifdef CONFIG_HIGHMEM + unsigned long tmp; + + for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) { + struct page *page = pfn_to_page(tmp); + + if (!page_is_ram(tmp)) + SetPageReserved(page); + else + free_highmem_page(page); + } +#endif +} +void __init mem_init(void) +{ #ifdef CONFIG_HIGHMEM #ifdef CONFIG_DISCONTIGMEM #error "CONFIG_HIGHMEM and CONFIG_DISCONTIGMEM dont work together yet" @@ -376,32 +389,8 @@ void __init mem_init(void) free_all_bootmem(); setup_zero_pages(); /* Setup zeroed pages. */ - - reservedpages = ram = 0; - for (tmp = 0; tmp < max_low_pfn; tmp++) - if (page_is_ram(tmp) && pfn_valid(tmp)) { - ram++; - if (PageReserved(pfn_to_page(tmp))) - reservedpages++; - } - num_physpages = ram; - -#ifdef CONFIG_HIGHMEM - for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) { - struct page *page = pfn_to_page(tmp); - - if (!page_is_ram(tmp)) { - SetPageReserved(page); - continue; - } - free_highmem_page(page); - } - num_physpages += totalhigh_pages; -#endif - - codesize = (unsigned long) &_etext - (unsigned long) &_text; - datasize = (unsigned long) &_edata - (unsigned long) &_etext; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; + mem_init_free_highmem(); + mem_init_print_info(NULL); #ifdef CONFIG_64BIT if ((unsigned long) &_text > (unsigned long) CKSEG0) @@ -410,16 +399,6 @@ void __init mem_init(void) kclist_add(&kcore_kseg0, (void *) CKSEG0, 0x80000000 - 4, KCORE_TEXT); #endif - - printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " - "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - nr_free_pages() << (PAGE_SHIFT-10), - ram << (PAGE_SHIFT-10), - codesize >> 10, - reservedpages << (PAGE_SHIFT-10), - datasize >> 10, - initsize >> 10, - totalhigh_pages << (PAGE_SHIFT-10)); } #endif /* !CONFIG_NEED_MULTIPLE_NODES */ diff -puN arch/mips/pci/pci-lantiq.c~mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init arch/mips/pci/pci-lantiq.c --- a/arch/mips/pci/pci-lantiq.c~mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init +++ a/arch/mips/pci/pci-lantiq.c @@ -89,7 +89,7 @@ static inline u32 ltq_calc_bar11mask(voi u32 mem, bar11mask; /* BAR11MASK value depends on available memory on system. */ - mem = num_physpages * PAGE_SIZE; + mem = get_num_physpages() * PAGE_SIZE; bar11mask = (0x0ffffff0 & ~((1 << (fls(mem) - 1)) - 1)) | 8; return bar11mask; diff -puN arch/mips/sgi-ip27/ip27-memory.c~mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init arch/mips/sgi-ip27/ip27-memory.c --- a/arch/mips/sgi-ip27/ip27-memory.c~mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init +++ a/arch/mips/sgi-ip27/ip27-memory.c @@ -357,8 +357,6 @@ static void __init szmem(void) int slot; cnodeid_t node; - num_physpages = 0; - for_each_online_node(node) { nodebytes = 0; for (slot = 0; slot < MAX_MEM_SLOTS; slot++) { @@ -381,7 +379,6 @@ static void __init szmem(void) slot = MAX_MEM_SLOTS; continue; } - num_physpages += slot_psize; memblock_add_node(PFN_PHYS(slot_getbasepfn(node, slot)), PFN_PHYS(slot_psize), node); } @@ -480,10 +477,9 @@ void __init paging_init(void) void __init mem_init(void) { - unsigned long codesize, datasize, initsize, tmp; unsigned node; - high_memory = (void *) __va(num_physpages << PAGE_SHIFT); + high_memory = (void *) __va(get_num_physpages() << PAGE_SHIFT); for_each_online_node(node) { /* @@ -494,18 +490,5 @@ void __init mem_init(void) setup_zero_pages(); /* This comes from node 0 */ - codesize = (unsigned long) &_etext - (unsigned long) &_text; - datasize = (unsigned long) &_edata - (unsigned long) &_etext; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - tmp = nr_free_pages(); - printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " - "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - tmp << (PAGE_SHIFT-10), - num_physpages << (PAGE_SHIFT-10), - codesize >> 10, - (num_physpages - tmp) << (PAGE_SHIFT-10), - datasize >> 10, - initsize >> 10, - totalhigh_pages << (PAGE_SHIFT-10)); + mem_init_print_info(NULL); } _ Patches currently in -mm which might be from liuj97@xxxxxxxxx are linux-next.patch mm-change-signature-of-free_reserved_area-to-fix-building-warnings.patch mm-enhance-free_reserved_area-to-support-poisoning-memory-with-zero.patch mm-arm64-kill-poison_init_mem.patch mm-x86-use-free_reserved_area-to-simplify-code.patch mm-tile-use-common-help-functions-to-free-reserved-pages.patch mm-fix-some-trivial-typos-in-comments.patch mm-use-managed_pages-to-calculate-default-zonelist-order.patch mm-accurately-calculate-zone-managed_pages-for-highmem-zones.patch mm-use-a-dedicated-lock-to-protect-totalram_pages-and-zone-managed_pages.patch mm-make-__free_pages_bootmem-only-available-at-boot-time.patch mm-correctly-update-zone-managed_pages.patch mm-correctly-update-zone-managed_pages-fix.patch mm-concentrate-modification-of-totalram_pages-into-the-mm-core.patch mm-report-available-pages-as-memtotal-for-each-numa-node.patch vmlinuxlds-add-comments-for-global-variables-and-clean-up-useless-declarations.patch avr32-normalize-global-variables-exported-by-vmlinuxlds.patch c6x-normalize-global-variables-exported-by-vmlinuxlds.patch h8300-normalize-global-variables-exported-by-vmlinuxlds.patch score-normalize-global-variables-exported-by-vmlinuxlds.patch tile-normalize-global-variables-exported-by-vmlinuxlds.patch uml-normalize-global-variables-exported-by-vmlinuxlds.patch mm-introduce-helper-function-mem_init_print_info-to-simplify-mem_init.patch mm-use-totalram_pages-instead-of-num_physpages-at-runtime.patch mm-hotplug-prepare-for-removing-num_physpages.patch mm-alpha-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-arc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-arm-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-arm64-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-avr32-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-blackfin-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-c6x-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-cris-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-frv-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-h8300-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-hexagon-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-ia64-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-m32r-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-m68k-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-metag-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-microblaze-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-mn10300-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-openrisc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-parisc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-ppc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-s390-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-score-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-sh-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-sparc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-um-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-unicore32-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-x86-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-xtensa-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-kill-global-variable-num_physpages.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html