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| author | Yinghai Lu <yinghai@kernel.org> | 2012-11-16 19:39:16 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-11-17 11:59:44 -0800 |
| commit | 4e37a890474b89ca49ad6b3651b1709a17d7c216 (patch) | |
| tree | 865d65b582af514a6e866071a30e06a095dd8bc1 /arch/x86/mm/init.c | |
| parent | 2e8059edb6fc5887e8e022d9e04fba26c9e0abcb (diff) | |
| download | lwn-4e37a890474b89ca49ad6b3651b1709a17d7c216.tar.gz lwn-4e37a890474b89ca49ad6b3651b1709a17d7c216.zip | |
x86, mm: Unifying after_bootmem for 32bit and 64bit
after_bootmem has different meaning in 32bit and 64bit.
32bit: after bootmem is ready
64bit: after bootmem is distroyed
Let's merget them make 32bit the same as 64bit.
for 32bit, it is mixing alloc_bootmem_pages, and alloc_low_page under
after_bootmem is set or not set.
alloc_bootmem is just wrapper for memblock for x86.
Now we have alloc_low_page() with memblock too. We can drop bootmem path
now, and only alloc_low_page only.
At the same time, we make alloc_low_page could handle real after_bootmem
for 32bit, because alloc_bootmem_pages could fallback to use slab too.
At last move after_bootmem set position for 32bit the same as 64bit.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1353123563-3103-40-git-send-email-yinghai@kernel.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/mm/init.c')
| -rw-r--r-- | arch/x86/mm/init.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index f410dc6f843e..2a27e5ac1e3c 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -39,7 +39,6 @@ __ref void *alloc_low_pages(unsigned int num) unsigned long pfn; int i; -#ifdef CONFIG_X86_64 if (after_bootmem) { unsigned int order; @@ -47,7 +46,6 @@ __ref void *alloc_low_pages(unsigned int num) return (void *)__get_free_pages(GFP_ATOMIC | __GFP_NOTRACK | __GFP_ZERO, order); } -#endif if ((pgt_buf_end + num) >= pgt_buf_top) { unsigned long ret; |