x86: fix kernel_physical_mapping_init() for large x86 systems · e22146e610 - Gogs

x86: fix kernel_physical_mapping_init() for large x86 systems

Fix bug in kernel_physical_mapping_init() that causes kernel
page table to be built incorrectly for systems with greater
than 512GB of memory.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Jack Steiner 17 years ago

parent

45158894d4

commit

e22146e610

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
arch/x86/mm/init_64.c
							 
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				@@ -644,7 +644,7 @@ static unsigned long __init kernel_physical_mapping_init(unsigned long start,
			
				 		unsigned long pud_phys;
			
				 		pud_t *pud;
			
				-		next = start + PGDIR_SIZE;
			
				+		next = (start + PGDIR_SIZE) & PGDIR_MASK;
			
				 		if (next > end)
			
				 			next = end;