From fe74650166dd6905b0cf66594eb79222dc9d7109 Mon Sep 17 00:00:00 2001 From: Chen Gang Date: Wed, 3 Jul 2013 15:00:42 -0700 Subject: arch: c6x: mm: include "asm/uaccess.h" to pass compiling Need include "asm/uaccess.h" to pass compiling. The related error (with allmodconfig): arch/c6x/mm/init.c: In function `paging_init': arch/c6x/mm/init.c:46:2: error: implicit declaration of function `set_fs' [-Werror=implicit-function-declaration] arch/c6x/mm/init.c:46:9: error: `KERNEL_DS' undeclared (first use in this function) arch/c6x/mm/init.c:46:9: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Chen Gang Cc: [3.10.x] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/c6x/mm/init.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/c6x') diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c index a9fcd89b251..b74ccb5a769 100644 --- a/arch/c6x/mm/init.c +++ b/arch/c6x/mm/init.c @@ -18,6 +18,7 @@ #include #include +#include /* * ZERO_PAGE is a special page that is used for zero-initialized -- cgit v1.2.3-70-g09d2 From 11199692d83dd3fe1511203024fb9853d176ec4c Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:02:48 -0700 Subject: mm: change signature of free_reserved_area() to fix building warnings Change signature of free_reserved_area() according to Russell King's suggestion to fix following build warnings: arch/arm/mm/init.c: In function 'mem_init': arch/arm/mm/init.c:603:2: warning: passing argument 1 of 'free_reserved_area' makes integer from pointer without a cast [enabled by default] free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL); ^ In file included from include/linux/mman.h:4:0, from arch/arm/mm/init.c:15: include/linux/mm.h:1301:22: note: expected 'long unsigned int' but argument is of type 'void *' extern unsigned long free_reserved_area(unsigned long start, unsigned long end, mm/page_alloc.c: In function 'free_reserved_area': >> mm/page_alloc.c:5134:3: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast [enabled by default] In file included from arch/mips/include/asm/page.h:49:0, from include/linux/mmzone.h:20, from include/linux/gfp.h:4, from include/linux/mm.h:8, from mm/page_alloc.c:18: arch/mips/include/asm/io.h:119:29: note: expected 'const volatile void *' but argument is of type 'long unsigned int' mm/page_alloc.c: In function 'free_area_init_nodes': mm/page_alloc.c:5030:34: warning: array subscript is below array bounds [-Warray-bounds] Also address some minor code review comments. Signed-off-by: Jiang Liu Reported-by: Arnd Bergmann Cc: "H. Peter Anvin" Cc: "Michael S. Tsirkin" Cc: Cc: Catalin Marinas Cc: Chris Metcalf 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: 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/kernel/sys_nautilus.c | 4 ++-- arch/alpha/mm/init.c | 2 +- arch/arc/mm/init.c | 2 +- arch/arm/mm/init.c | 2 +- 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/frv/mm/init.c | 2 +- arch/h8300/mm/init.c | 2 +- arch/ia64/mm/init.c | 3 +-- arch/m32r/mm/init.c | 2 +- arch/m68k/mm/init.c | 2 +- arch/metag/mm/init.c | 3 ++- arch/microblaze/mm/init.c | 2 +- arch/mips/mm/init.c | 3 ++- arch/mn10300/mm/init.c | 3 ++- arch/openrisc/mm/init.c | 2 +- arch/parisc/mm/init.c | 3 ++- arch/powerpc/kernel/kvm.c | 2 +- arch/powerpc/mm/mem.c | 2 +- arch/s390/mm/init.c | 3 ++- arch/score/mm/init.c | 3 ++- arch/sh/mm/init.c | 2 +- arch/sparc/mm/init_32.c | 4 ++-- arch/sparc/mm/init_64.c | 4 ++-- arch/um/kernel/mem.c | 2 +- arch/unicore32/mm/init.c | 2 +- arch/xtensa/mm/init.c | 2 +- include/linux/mm.h | 5 ++--- mm/page_alloc.c | 19 ++++++++++--------- 31 files changed, 50 insertions(+), 45 deletions(-) (limited to 'arch/c6x') diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index 1d4aabfcf9a..891bd274ccb 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -238,8 +238,8 @@ nautilus_init_pci(void) if (pci_mem < memtop) memtop = pci_mem; if (memtop > alpha_mv.min_mem_address) { - free_reserved_area((unsigned long)__va(alpha_mv.min_mem_address), - (unsigned long)__va(memtop), 0, NULL); + free_reserved_area(__va(alpha_mv.min_mem_address), + __va(memtop), 0, NULL); printk("nautilus_init_pci: %ldk freed\n", (memtop - alpha_mv.min_mem_address) >> 10); } diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index 0ba85ee4a46..d54848d4e46 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -326,6 +326,6 @@ free_initmem(void) void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index 4a177365b2c..dce02e4716a 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -152,7 +152,7 @@ void __init_refok free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 2ffee02d1d5..7fae391caf8 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -745,7 +745,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { poison_init_mem((void *)start, PAGE_ALIGN(end) - start); - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } } diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index f497ca77925..6041e4008a8 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -398,7 +398,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { poison_init_mem((void *)start, PAGE_ALIGN(end) - start); - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } } diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index e66e8406f99..5a79fa08cb3 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -154,6 +154,6 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index 82d01a71207..8e9eab27281 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -133,7 +133,7 @@ void __init mem_init(void) void __init free_initrd_mem(unsigned long start, unsigned long end) { #ifndef CONFIG_MPU - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); #endif } #endif diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c index b74ccb5a769..07bfcc98a3b 100644 --- a/arch/c6x/mm/init.c +++ b/arch/c6x/mm/init.c @@ -78,7 +78,7 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c index dee354fa6b6..a67f3a5897b 100644 --- a/arch/frv/mm/init.c +++ b/arch/frv/mm/init.c @@ -173,6 +173,6 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } /* end free_initrd_mem() */ #endif diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c index ff349d70a29..57e03c59861 100644 --- a/arch/h8300/mm/init.c +++ b/arch/h8300/mm/init.c @@ -161,7 +161,7 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index d1fe4b40260..da568c2e839 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -154,8 +154,7 @@ ia64_init_addr_space (void) void free_initmem (void) { - free_reserved_area((unsigned long)ia64_imva(__init_begin), - (unsigned long)ia64_imva(__init_end), + free_reserved_area(ia64_imva(__init_begin), ia64_imva(__init_end), 0, "unused kernel"); } diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index ab4cbce91a9..d80412d0c14 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -191,6 +191,6 @@ void free_initmem(void) *======================================================================*/ void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 1af2ca3411f..95de725534e 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -202,6 +202,6 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c index d05b8455c44..5e2238dd72e 100644 --- a/arch/metag/mm/init.c +++ b/arch/metag/mm/init.c @@ -414,7 +414,8 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); + free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, + "initrd"); } #endif diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index b38ae3acfeb..d7b8ada9345 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -235,7 +235,7 @@ void __init setup_memory(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 9b973e0af9c..268f2a94031 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -440,7 +440,8 @@ void free_init_pages(const char *what, unsigned long begin, unsigned long end) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); + free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, + "initrd"); } #endif diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c index 5a8ace63a6b..e19049d1f2b 100644 --- a/arch/mn10300/mm/init.c +++ b/arch/mn10300/mm/init.c @@ -152,6 +152,7 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); + free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, + "initrd"); } #endif diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c index b3cbc670383..ab113325dc4 100644 --- a/arch/openrisc/mm/init.c +++ b/arch/openrisc/mm/init.c @@ -261,7 +261,7 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 505b56c6b9b..3223d5e4a37 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -1101,6 +1101,7 @@ void flush_tlb_all(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - num_physpages += free_reserved_area(start, end, 0, "initrd"); + num_physpages += free_reserved_area((void *)start, (void *)end, 0, + "initrd"); } #endif diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 6782221d49b..5e4830a33c0 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -756,7 +756,7 @@ static __init void kvm_free_tmp(void) end = (ulong)&kvm_tmp[ARRAY_SIZE(kvm_tmp)] & PAGE_MASK; /* Free the tmp space we don't need */ - free_reserved_area(start, end, 0, NULL); + free_reserved_area((void *)start, (void *)end, 0, NULL); } static int __init kvm_guest_init(void) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 0988a26e041..347c5b1bbd6 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -407,7 +407,7 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 89ebae4008f..0878c89fe7d 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -172,7 +172,8 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); + free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, + "initrd"); } #endif diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c index 0940682ab38..f5dd61eb454 100644 --- a/arch/score/mm/init.c +++ b/arch/score/mm/init.c @@ -108,7 +108,8 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); + free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, + "initrd"); } #endif diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 20f9ead650d..b892a9b7d7e 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -505,7 +505,7 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index af472cf7c69..d5f9c023826 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -372,8 +372,8 @@ void free_initmem (void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - num_physpages += free_reserved_area(start, end, POISON_FREE_INITMEM, - "initrd"); + num_physpages += free_reserved_area((void *)start, (void *)end, + POISON_FREE_INITMEM, "initrd"); } #endif diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 04fd55a6e46..8269deb84ed 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2131,8 +2131,8 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - num_physpages += free_reserved_area(start, end, POISON_FREE_INITMEM, - "initrd"); + num_physpages += free_reserved_area((void *)start, (void *)end, + POISON_FREE_INITMEM, "initrd"); } #endif diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 9df292b270a..2aa7a2448d5 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -244,7 +244,7 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c index 63df12d71ce..220755cc970 100644 --- a/arch/unicore32/mm/init.c +++ b/arch/unicore32/mm/init.c @@ -486,7 +486,7 @@ static int keep_initrd; void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } static int __init keepinitrd_setup(char *__unused) diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index bba125b4bb0..4d658efc328 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -214,7 +214,7 @@ extern int initrd_is_mapped; void free_initrd_mem(unsigned long start, unsigned long end) { if (initrd_is_mapped) - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, 0, "initrd"); } #endif diff --git a/include/linux/mm.h b/include/linux/mm.h index 949bd703589..be1b96ce065 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1311,7 +1311,7 @@ extern void free_initmem(void); * "poison" if it's non-zero. * Return pages freed into the buddy system. */ -extern unsigned long free_reserved_area(unsigned long start, unsigned long end, +extern unsigned long free_reserved_area(void *start, void *end, int poison, char *s); #ifdef CONFIG_HIGHMEM /* @@ -1355,8 +1355,7 @@ static inline unsigned long free_initmem_default(int poison) { extern char __init_begin[], __init_end[]; - return free_reserved_area(PAGE_ALIGN((unsigned long)&__init_begin) , - ((unsigned long)&__init_end) & PAGE_MASK, + return free_reserved_area(&__init_begin, &__init_end, poison, "unused kernel"); } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d711dcdda36..be18ccd017b 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5206,25 +5206,26 @@ early_param("movablecore", cmdline_parse_movablecore); #endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */ -unsigned long free_reserved_area(unsigned long start, unsigned long end, - int poison, char *s) +unsigned long free_reserved_area(void *start, void *end, int poison, char *s) { - unsigned long pages, pos; + void *pos; + unsigned long pages = 0; - pos = start = PAGE_ALIGN(start); - end &= PAGE_MASK; - for (pages = 0; pos < end; pos += PAGE_SIZE, pages++) { + start = (void *)PAGE_ALIGN((unsigned long)start); + end = (void *)((unsigned long)end & PAGE_MASK); + for (pos = start; pos < end; pos += PAGE_SIZE, pages++) { if (poison) - memset((void *)pos, poison, PAGE_SIZE); - free_reserved_page(virt_to_page((void *)pos)); + memset(pos, poison, PAGE_SIZE); + free_reserved_page(virt_to_page(pos)); } if (pages && s) - pr_info("Freeing %s memory: %ldK (%lx - %lx)\n", + pr_info("Freeing %s memory: %ldK (%p - %p)\n", s, pages << (PAGE_SHIFT - 10), start, end); return pages; } +EXPORT_SYMBOL(free_reserved_area); #ifdef CONFIG_HIGHMEM void free_highmem_page(struct page *page) -- cgit v1.2.3-70-g09d2 From dbe67df4ba78c79db547c7864e1120981c144c97 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:02:51 -0700 Subject: mm: enhance free_reserved_area() to support poisoning memory with zero Address more review comments from last round of code review. 1) Enhance free_reserved_area() to support poisoning freed memory with pattern '0'. This could be used to get rid of poison_init_mem() on ARM64. 2) A previous patch has disabled memory poison for initmem on s390 by mistake, so restore to the original behavior. 3) Remove redundant PAGE_ALIGN() when calling free_reserved_area(). Signed-off-by: Jiang Liu Cc: Geert Uytterhoeven Cc: "H. Peter Anvin" Cc: "Michael S. Tsirkin" Cc: Cc: Arnd Bergmann Cc: Catalin Marinas Cc: Chris Metcalf Cc: David Howells 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/kernel/sys_nautilus.c | 2 +- arch/alpha/mm/init.c | 4 ++-- arch/arc/mm/init.c | 4 ++-- arch/arm/mm/init.c | 8 ++++---- arch/arm64/mm/init.c | 4 ++-- arch/avr32/mm/init.c | 4 ++-- arch/blackfin/mm/init.c | 4 ++-- arch/c6x/mm/init.c | 4 ++-- arch/cris/mm/init.c | 2 +- arch/frv/mm/init.c | 4 ++-- arch/h8300/mm/init.c | 4 ++-- arch/ia64/mm/init.c | 2 +- arch/m32r/mm/init.c | 4 ++-- arch/m68k/mm/init.c | 4 ++-- arch/microblaze/mm/init.c | 4 ++-- arch/openrisc/mm/init.c | 4 ++-- arch/parisc/mm/init.c | 4 ++-- arch/powerpc/kernel/kvm.c | 9 ++------- arch/powerpc/mm/mem.c | 2 +- arch/s390/mm/init.c | 2 +- arch/sh/mm/init.c | 4 ++-- arch/um/kernel/mem.c | 2 +- arch/unicore32/mm/init.c | 4 ++-- arch/xtensa/mm/init.c | 4 ++-- include/linux/mm.h | 7 ++++--- mm/page_alloc.c | 2 +- 26 files changed, 49 insertions(+), 53 deletions(-) (limited to 'arch/c6x') diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index 891bd274ccb..837c0fa5831 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -239,7 +239,7 @@ nautilus_init_pci(void) memtop = pci_mem; if (memtop > alpha_mv.min_mem_address) { free_reserved_area(__va(alpha_mv.min_mem_address), - __va(memtop), 0, NULL); + __va(memtop), -1, NULL); printk("nautilus_init_pci: %ldk freed\n", (memtop - alpha_mv.min_mem_address) >> 10); } diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index d54848d4e46..218c29c14bb 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -319,13 +319,13 @@ mem_init(void) void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index dce02e4716a..f9c70771209 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -146,13 +146,13 @@ void __init mem_init(void) */ void __init_refok free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 7fae391caf8..2070651c1bb 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -601,7 +601,7 @@ void __init mem_init(void) #ifdef CONFIG_SA1111 /* now that our DMA memory is actually so designated, we can free it */ - free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL); + free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, -1, NULL); #endif free_highpages(); @@ -729,12 +729,12 @@ void free_initmem(void) extern char __tcm_start, __tcm_end; poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start); - free_reserved_area(&__tcm_start, &__tcm_end, 0, "TCM link"); + free_reserved_area(&__tcm_start, &__tcm_end, -1, "TCM link"); #endif poison_init_mem(__init_begin, __init_end - __init_begin); if (!machine_is_integrator() && !machine_is_cintegrator()) - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD @@ -745,7 +745,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { poison_init_mem((void *)start, PAGE_ALIGN(end) - start); - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } } diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 6041e4008a8..997c6345cdd 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -387,7 +387,7 @@ void __init mem_init(void) void free_initmem(void) { poison_init_mem(__init_begin, __init_end - __init_begin); - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD @@ -398,7 +398,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { poison_init_mem((void *)start, PAGE_ALIGN(end) - start); - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } } diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index 5a79fa08cb3..b079e04f695 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -148,12 +148,12 @@ void __init mem_init(void) void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index 8e9eab27281..fa241f5a7dc 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -133,7 +133,7 @@ void __init mem_init(void) void __init free_initrd_mem(unsigned long start, unsigned long end) { #ifndef CONFIG_MPU - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); #endif } #endif @@ -141,7 +141,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end) void __init_refok free_initmem(void) { #if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU - free_initmem_default(0); + free_initmem_default(-1); if (memory_start == (unsigned long)(&__init_end)) memory_start = (unsigned long)(&__init_begin); #endif diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c index 07bfcc98a3b..3987a20fdee 100644 --- a/arch/c6x/mm/init.c +++ b/arch/c6x/mm/init.c @@ -78,11 +78,11 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif void __init free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c index 9ac80946dad..8fec26392ae 100644 --- a/arch/cris/mm/init.c +++ b/arch/cris/mm/init.c @@ -65,5 +65,5 @@ mem_init(void) void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c index a67f3a5897b..8ba9d22d0d9 100644 --- a/arch/frv/mm/init.c +++ b/arch/frv/mm/init.c @@ -162,7 +162,7 @@ void __init mem_init(void) void free_initmem(void) { #if defined(CONFIG_RAMKERNEL) && !defined(CONFIG_PROTECT_KERNEL) - free_initmem_default(0); + free_initmem_default(-1); #endif } /* end free_initmem() */ @@ -173,6 +173,6 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } /* end free_initrd_mem() */ #endif diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c index 57e03c59861..c831f1dba13 100644 --- a/arch/h8300/mm/init.c +++ b/arch/h8300/mm/init.c @@ -161,7 +161,7 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif @@ -169,7 +169,7 @@ void free_initmem(void) { #ifdef CONFIG_RAMKERNEL - free_initmem_default(0); + free_initmem_default(-1); #endif } diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index da568c2e839..f8a4f38b0ad 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -155,7 +155,7 @@ void free_initmem (void) { free_reserved_area(ia64_imva(__init_begin), ia64_imva(__init_end), - 0, "unused kernel"); + -1, "unused kernel"); } void __init diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index d80412d0c14..cca87d91843 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -181,7 +181,7 @@ void __init mem_init(void) *======================================================================*/ void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD @@ -191,6 +191,6 @@ void free_initmem(void) *======================================================================*/ void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 95de725534e..ab0b54ca5d8 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -110,7 +110,7 @@ void __init paging_init(void) void free_initmem(void) { #ifndef CONFIG_MMU_SUN3 - free_initmem_default(0); + free_initmem_default(-1); #endif /* CONFIG_MMU_SUN3 */ } @@ -202,6 +202,6 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index d7b8ada9345..d149e0ebb76 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -235,13 +235,13 @@ void __init setup_memory(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } void __init mem_init(void) diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c index ab113325dc4..c371e4a0fca 100644 --- a/arch/openrisc/mm/init.c +++ b/arch/openrisc/mm/init.c @@ -261,11 +261,11 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 3223d5e4a37..ebac7bd76b5 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -532,7 +532,7 @@ void free_initmem(void) * pages are no-longer executable */ flush_icache_range(init_begin, init_end); - num_physpages += free_initmem_default(0); + num_physpages += free_initmem_default(-1); /* set up a new led state on systems shipped LED State panel */ pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE); @@ -1101,7 +1101,7 @@ void flush_tlb_all(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - num_physpages += free_reserved_area((void *)start, (void *)end, 0, + num_physpages += free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 5e4830a33c0..db28032e320 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -750,13 +750,8 @@ EXPORT_SYMBOL_GPL(kvm_hypercall); static __init void kvm_free_tmp(void) { - unsigned long start, end; - - start = (ulong)&kvm_tmp[kvm_tmp_index + (PAGE_SIZE - 1)] & PAGE_MASK; - end = (ulong)&kvm_tmp[ARRAY_SIZE(kvm_tmp)] & PAGE_MASK; - - /* Free the tmp space we don't need */ - free_reserved_area((void *)start, (void *)end, 0, NULL); + free_reserved_area(&kvm_tmp[kvm_tmp_index], + &kvm_tmp[ARRAY_SIZE(kvm_tmp)], -1, NULL); } static int __init kvm_guest_init(void) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 347c5b1bbd6..7f47a05f55a 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -407,7 +407,7 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 0878c89fe7d..bf01d18422e 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -166,7 +166,7 @@ void __init mem_init(void) void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(POISON_FREE_INITMEM); } #ifdef CONFIG_BLK_DEV_INITRD diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index b892a9b7d7e..d3af56b7a09 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -499,13 +499,13 @@ void __init mem_init(void) void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 2aa7a2448d5..8ff0b7ae8ec 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -244,7 +244,7 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c index 220755cc970..df9b8abcb6a 100644 --- a/arch/unicore32/mm/init.c +++ b/arch/unicore32/mm/init.c @@ -476,7 +476,7 @@ void __init mem_init(void) void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD @@ -486,7 +486,7 @@ static int keep_initrd; void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } static int __init keepinitrd_setup(char *__unused) diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index 4d658efc328..026d29bee30 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -214,11 +214,11 @@ extern int initrd_is_mapped; void free_initrd_mem(unsigned long start, unsigned long end) { if (initrd_is_mapped) - free_reserved_area((void *)start, (void *)end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif void free_initmem(void) { - free_initmem_default(0); + free_initmem_default(-1); } diff --git a/include/linux/mm.h b/include/linux/mm.h index be1b96ce065..083cc0ba238 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1308,7 +1308,7 @@ extern void free_initmem(void); /* * Free reserved pages within range [PAGE_ALIGN(start), end & PAGE_MASK) * into the buddy system. The freed pages will be poisoned with pattern - * "poison" if it's non-zero. + * "poison" if it's within range [0, UCHAR_MAX]. * Return pages freed into the buddy system. */ extern unsigned long free_reserved_area(void *start, void *end, @@ -1348,8 +1348,9 @@ static inline void mark_page_reserved(struct page *page) /* * Default method to free all the __init memory into the buddy system. - * The freed pages will be poisoned with pattern "poison" if it is - * non-zero. Return pages freed into the buddy system. + * The freed pages will be poisoned with pattern "poison" if it's within + * range [0, UCHAR_MAX]. + * Return pages freed into the buddy system. */ static inline unsigned long free_initmem_default(int poison) { diff --git a/mm/page_alloc.c b/mm/page_alloc.c index be18ccd017b..6780b2e18aa 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5214,7 +5214,7 @@ unsigned long free_reserved_area(void *start, void *end, int poison, char *s) start = (void *)PAGE_ALIGN((unsigned long)start); end = (void *)((unsigned long)end & PAGE_MASK); for (pos = start; pos < end; pos += PAGE_SIZE, pages++) { - if (poison) + if ((unsigned int)poison <= 0xFF) memset(pos, poison, PAGE_SIZE); free_reserved_page(virt_to_page(pos)); } -- 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/c6x') 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 06256f8f719917581a221221bb851fcf88de564b Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:03:35 -0700 Subject: c6x: normalize global variables exported by vmlinux.lds Normalize global variables exported by vmlinux.lds to conform usage guidelines from include/asm-generic/sections.h. Use _text to mark the start of the kernel image including the head text, and _stext to mark the start of the .text section. This patch also fixes possible bugs due to current address layout that [__init_begin, __init_end] is a sub-range of [_stext, _etext] and pages within range [__init_begin, __init_end] will be freed by free_initmem(). Signed-off-by: Jiang Liu Cc: Mark Salter Cc: Aurelien Jacquiot Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/c6x/kernel/vmlinux.lds.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/c6x') diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S index 1d81c4c129e..279d8072512 100644 --- a/arch/c6x/kernel/vmlinux.lds.S +++ b/arch/c6x/kernel/vmlinux.lds.S @@ -54,16 +54,15 @@ SECTIONS } . = ALIGN(PAGE_SIZE); + __init_begin = .; .init : { - _stext = .; _sinittext = .; HEAD_TEXT INIT_TEXT _einittext = .; } - __init_begin = _stext; INIT_DATA_SECTION(16) PERCPU_SECTION(128) @@ -74,6 +73,7 @@ SECTIONS .text : { _text = .; + _stext = .; TEXT_TEXT SCHED_TEXT LOCK_TEXT -- cgit v1.2.3-70-g09d2 From 02f5532445c4aed57697b612e72b2a334eeb10ce Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Wed, 3 Jul 2013 15:03:52 -0700 Subject: mm/c6x: prepare for removing num_physpages and simplify mem_init() Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu Cc: Mark Salter Cc: Aurelien Jacquiot Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/c6x/mm/init.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'arch/c6x') diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c index c9ae8ce731d..63f5560d6eb 100644 --- a/arch/c6x/mm/init.c +++ b/arch/c6x/mm/init.c @@ -58,21 +58,12 @@ void __init paging_init(void) void __init mem_init(void) { - int codek, datak; - unsigned long tmp; - unsigned long len = memory_end - memory_start; - high_memory = (void *)(memory_end & PAGE_MASK); /* this will put all memory onto the freelists */ free_all_bootmem(); - codek = (_etext - _stext) >> 10; - datak = (_end - _sdata) >> 10; - - tmp = nr_free_pages() << PAGE_SHIFT; - printk(KERN_INFO "Memory: %luk/%luk RAM (%dk kernel code, %dk data)\n", - tmp >> 10, len >> 10, codek, datak); + mem_init_print_info(NULL); } #ifdef CONFIG_BLK_DEV_INITRD -- cgit v1.2.3-70-g09d2