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| author | Yinghai Lu <yinghai@kernel.org> | 2010-10-11 10:40:25 -0700 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2010-10-11 17:08:36 -0400 |
| commit | e79f86b2ef9c0a8c47225217c1018b7d3d90101c (patch) | |
| tree | 53ba03cad303a566831fa03ebbfc408ab36ae36c /net | |
| parent | 03620b2d7545fee29ecd3bb270f206b9cff75e58 (diff) | |
| download | op-kernel-dev-e79f86b2ef9c0a8c47225217c1018b7d3d90101c.zip op-kernel-dev-e79f86b2ef9c0a8c47225217c1018b7d3d90101c.tar.gz | |
swiotlb: Use page alignment for early buffer allocation
We could call free_bootmem_late() if swiotlb is not used, and
it will shrink to page alignment.
So alloc them with page alignment at first, to avoid lose two pages
before patch:
[ 0.000000] memblock_x86_reserve_range: [00d3600000, 00d7600000] swiotlb buffer
[ 0.000000] memblock_x86_reserve_range: [00d7e7ef40, 00d7e9ef40] swiotlb list
[ 0.000000] memblock_x86_reserve_range: [00d7e3ef40, 00d7e7ef40] swiotlb orig_ad
[ 0.000000] memblock_x86_reserve_range: [000008a000, 0000092000] swiotlb overflo
after patch will get
[ 0.000000] memblock_x86_reserve_range: [00d3600000, 00d7600000] swiotlb buffer
[ 0.000000] memblock_x86_reserve_range: [00d7e7e000, 00d7e9e000] swiotlb list
[ 0.000000] memblock_x86_reserve_range: [00d7e3e000, 00d7e7e000] swiotlb orig_ad
[ 0.000000] memblock_x86_reserve_range: [000008a000, 0000092000] swiotlb overflo
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions
