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| author | Yinghai Lu <yinghai@kernel.org> | 2012-10-22 16:35:18 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-10-24 11:52:21 -0700 |
| commit | 6ede1fd3cb404c0016de6ac529df46d561bd558b (patch) | |
| tree | c5537b527a5a065fff2bd9b33d003561a0d87206 /include/linux/memblock.h | |
| parent | 94777fc51b3ad85ff9f705ddf7cdd0eb3bbad5a6 (diff) | |
| download | lwn-6ede1fd3cb404c0016de6ac529df46d561bd558b.tar.gz lwn-6ede1fd3cb404c0016de6ac529df46d561bd558b.zip | |
x86, mm: Trim memory in memblock to be page aligned
We will not map partial pages, so need to make sure memblock
allocation will not allocate those bytes out.
Also we will use for_each_mem_pfn_range() to loop to map memory
range to keep them consistent.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/CAE9FiQVZirvaBMFYRfXMmWEcHbKSicQEHz4VAwUv0xFCk51ZNw@mail.gmail.com
Acked-by: Jacob Shin <jacob.shin@amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@vger.kernel.org>
Diffstat (limited to 'include/linux/memblock.h')
| -rw-r--r-- | include/linux/memblock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 569d67d4243e..d452ee191066 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -57,6 +57,7 @@ int memblock_add(phys_addr_t base, phys_addr_t size); int memblock_remove(phys_addr_t base, phys_addr_t size); int memblock_free(phys_addr_t base, phys_addr_t size); int memblock_reserve(phys_addr_t base, phys_addr_t size); +void memblock_trim_memory(phys_addr_t align); #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn, |