Subject: + mm-x86-use-free_reserved_area-to-simplify-code.patch added to -mm tree
To: liuj97@xxxxxxxxx,arnd@xxxxxxxx,catalin.marinas@xxxxxxx,cmetcalf@xxxxxxxxxx,dhowells@xxxxxxxxxx,geert@xxxxxxxxxxxxxx,hpa@xxxxxxxxx,isimatu.yasuaki@xxxxxxxxxxxxxx,jeremy@xxxxxxxx,jiang.liu@xxxxxxxxxx,js1304@xxxxxxxxx,kamezawa.hiroyu@xxxxxxxxxxxxxx,konrad.wilk@xxxxxxxxxx,m.szyprowski@xxxxxxxxxxx,mel@xxxxxxxxx,minchan@xxxxxxxxxx,mingo@xxxxxxxxxx,mst@xxxxxxxxxx,riel@xxxxxxxxxx,rmk@xxxxxxxxxxxxxxxx,rusty@xxxxxxxxxxxxxxx,sworddragon2@xxxxxxx,tangchen@xxxxxxxxxxxxxx,tglx@xxxxxxxxxxxxx,tj@xxxxxxxxxx,walken@xxxxxxxxxx,wency@xxxxxxxxxxxxxx,will.deacon@xxxxxxx,wujianguo@xxxxxxxxxx,yinghai@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 30 May 2013 15:16:54 -0700
The patch titled
Subject: mm/x86: use free_reserved_area() to simplify code
has been added to the -mm tree. Its filename is
mm-x86-use-free_reserved_area-to-simplify-code.patch
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------------------------------------------------------
From: Jiang Liu <liuj97@xxxxxxxxx>
Subject: mm/x86: use free_reserved_area() to simplify code
Use common help function free_reserved_area() to simplify code.
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Wen Congyang <wency@xxxxxxxxxxxxxx>
Cc: Jianguo Wu <wujianguo@xxxxxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: <sworddragon2@xxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Chris Metcalf <cmetcalf@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Cc: Joonsoo Kim <js1304@xxxxxxxxx>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Michel Lespinasse <walken@xxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/init.c | 14 +++-----------
arch/x86/mm/init_64.c | 5 ++---
2 files changed, 5 insertions(+), 14 deletions(-)
diff -puN arch/x86/mm/init.c~mm-x86-use-free_reserved_area-to-simplify-code arch/x86/mm/init.c
--- a/arch/x86/mm/init.c~mm-x86-use-free_reserved_area-to-simplify-code
+++ a/arch/x86/mm/init.c
@@ -494,7 +494,6 @@ int devmem_is_allowed(unsigned long page
void free_init_pages(char *what, unsigned long begin, unsigned long end)
{
- unsigned long addr;
unsigned long begin_aligned, end_aligned;
/* Make sure boundaries are page aligned */
@@ -509,8 +508,6 @@ void free_init_pages(char *what, unsigne
if (begin >= end)
return;
- addr = begin;
-
/*
* If debugging page accesses then do not free this memory but
* mark them not present - any buggy init-section access will
@@ -529,18 +526,13 @@ void free_init_pages(char *what, unsigne
set_memory_nx(begin, (end - begin) >> PAGE_SHIFT);
set_memory_rw(begin, (end - begin) >> PAGE_SHIFT);
- printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
-
- for (; addr < end; addr += PAGE_SIZE) {
- memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
- free_reserved_page(virt_to_page(addr));
- }
+ free_reserved_area((void *)begin, (void *)end, POISON_FREE_INITMEM, what);
#endif
}
void free_initmem(void)
{
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long)(&__init_begin),
(unsigned long)(&__init_end));
}
@@ -566,7 +558,7 @@ void __init free_initrd_mem(unsigned lon
* - relocate_initrd()
* So here We can do PAGE_ALIGN() safely to get partial page to be freed
*/
- free_init_pages("initrd memory", start, PAGE_ALIGN(end));
+ free_init_pages("initrd", start, PAGE_ALIGN(end));
}
#endif
diff -puN arch/x86/mm/init_64.c~mm-x86-use-free_reserved_area-to-simplify-code arch/x86/mm/init_64.c
--- a/arch/x86/mm/init_64.c~mm-x86-use-free_reserved_area-to-simplify-code
+++ a/arch/x86/mm/init_64.c
@@ -1166,11 +1166,10 @@ void mark_rodata_ro(void)
set_memory_ro(start, (end-start) >> PAGE_SHIFT);
#endif
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long) __va(__pa_symbol(text_end)),
(unsigned long) __va(__pa_symbol(rodata_start)));
-
- free_init_pages("unused kernel memory",
+ free_init_pages("unused kernel",
(unsigned long) __va(__pa_symbol(rodata_end)),
(unsigned long) __va(__pa_symbol(_sdata)));
}
_
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
--
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