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authorLinus Torvalds <torvalds@linux-foundation.org>2009-05-20 19:30:36 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-05-20 19:30:36 -0400
commit9fe02c03b4e892acb3c33819ac4385d43b2f0bd7 (patch)
treec2b7503c9ce846aaeacde76141314e2dbcde927a /mm/mmzone.c
parent6c2445efb816a34dab7bb7357317e2d656f14cb1 (diff)
parent03fbdb15c14e9746c63168e3ff2c64b9c8336d33 (diff)
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (25 commits) [ARM] 5519/1: amba probe: pass "struct amba_id *" instead of void * [ARM] 5517/1: integrator: don't put clock lookups in __initdata [ARM] 5518/1: versatile: don't put clock lookups in __initdata [ARM] mach-l7200: fix spelling of SYS_CLOCK_OFF [ARM] Double check memmap is actually valid with a memmap has unexpected holes V2 [ARM] realview: fix broadcast tick support [ARM] realview: remove useless smp_cross_call_done() [ARM] smp: fix cpumask usage in ARM SMP code [ARM] 5513/1: Eurotech VIPER SBC: fix compilation error [ARM] 5509/1: ep93xx: clkdev enable UARTS ARM: OMAP2/3: Change omapfb to use clkdev for dispc and rfbi, v2 ARM: OMAP3: Fix HW SAVEANDRESTORE shift define ARM: OMAP3: Fix number of GPIO lines for 34xx [ARM] S3C: Do not set clk->owner field if unset [ARM] S3C2410: mach-bast.c registering i2c data too early [ARM] S3C24XX: Fix unused code warning in arch/arm/plat-s3c24xx/dma.c [ARM] S3C64XX: fix GPIO debug [ARM] S3C64XX: GPIO include cleanup [ARM] nwfpe: fix 'floatx80_is_nan' sparse warning [ARM] nwfpe: Add decleration for ExtendedCPDO ...
Diffstat (limited to 'mm/mmzone.c')
-rw-r--r--mm/mmzone.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 16ce8b955dcf..f5b7d1760213 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -6,6 +6,7 @@
6 6
7 7
8#include <linux/stddef.h> 8#include <linux/stddef.h>
9#include <linux/mm.h>
9#include <linux/mmzone.h> 10#include <linux/mmzone.h>
10#include <linux/module.h> 11#include <linux/module.h>
11 12
@@ -72,3 +73,17 @@ struct zoneref *next_zones_zonelist(struct zoneref *z,
72 *zone = zonelist_zone(z); 73 *zone = zonelist_zone(z);
73 return z; 74 return z;
74} 75}
76
77#ifdef CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
78int memmap_valid_within(unsigned long pfn,
79 struct page *page, struct zone *zone)
80{
81 if (page_to_pfn(page) != pfn)
82 return 0;
83
84 if (page_zone(page) != zone)
85 return 0;
86
87 return 1;
88}
89#endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */