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authorYinghai Lu <yhlu.kernel.send@gmail.com>2008-04-29 01:59:49 -0700
committerThomas Gleixner <tglx@linutronix.de>2008-05-25 10:55:09 +0200
commit42651f15824d003e8357693ab72c4dbb3e280836 (patch)
tree1114071a407bfeb38edc12b7c822039641cd5c13 /include/asm-x86/e820_64.h
parentx86: mtrr cleanup for converting continuous to discrete layout, v8 (diff)
downloadlinux-dev-42651f15824d003e8357693ab72c4dbb3e280836.tar.xz
linux-dev-42651f15824d003e8357693ab72c4dbb3e280836.zip
x86: fix trimming e820 with MTRR holes.
converting MTRR layout from continous to discrete, some time could run out of MTRRs. So add gran_sizek to prevent that by dumpping small RAM piece less than gran_sizek. previous trimming only can handle highest_pfn from mtrr to end_pfn from e820. when have more than 4g RAM installed, there will be holes below 4g. so need to check ram below 4g is coverred well. need to be applied after [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v7 Signed-off-by: Yinghai Lu <yinghai.lu@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/e820_64.h')
-rw-r--r--include/asm-x86/e820_64.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h
index 71c4d685d30d..6ae3e2803286 100644
--- a/include/asm-x86/e820_64.h
+++ b/include/asm-x86/e820_64.h
@@ -21,7 +21,7 @@ extern unsigned long find_e820_area_size(unsigned long start,
unsigned long align);
extern void add_memory_region(unsigned long start, unsigned long size,
int type);
-extern void update_memory_range(u64 start, u64 size, unsigned old_type,
+extern u64 update_memory_range(u64 start, u64 size, unsigned old_type,
unsigned new_type);
extern void setup_memory_region(void);
extern void contig_e820_setup(void);