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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-20 17:24:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-08-01 11:50:50 -0700 |
| commit | 0d4f40b70ed6b905e21a8de006a80415ba76997f (patch) | |
| tree | 1fe54daf232599e6febce1cec7ed5c86cf974bc3 | |
| parent | c2a0d55885173608ecdd5b653969e5228b5b70c0 (diff) | |
| download | lwn-0d4f40b70ed6b905e21a8de006a80415ba76997f.tar.gz lwn-0d4f40b70ed6b905e21a8de006a80415ba76997f.zip | |
x86: fix kernel_physical_mapping_init() for large x86 systems
based on e22146e610bb7aed63282148740ab1d1b91e1d90 upstream
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>
Cc: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | arch/x86/mm/init_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index b2c5231c4686..8e47740b13a6 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -427,7 +427,7 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end) else pud = alloc_low_page(&pud_phys); - next = start + PGDIR_SIZE; + next = (start + PGDIR_SIZE) & PGDIR_MASK; if (next > end) next = end; phys_pud_init(pud, __pa(start), __pa(next)); |