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| author | Christoph Hellwig <hch@lst.de> | 2018-01-09 23:39:03 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-01-15 09:35:12 +0100 |
| commit | c61e9637340e1d0672c6f0c0b11aa81d7262c49d (patch) | |
| tree | 2e38215dba2ec8b18ac7f89e4a24c0a0b7da7b52 /Documentation/target | |
| parent | 21f237e4d08511eb662b59d8ff1b64be68e0c2bc (diff) | |
| download | linux-c61e9637340e1d0672c6f0c0b11aa81d7262c49d.tar.gz | |
dma-direct: add support for allocation from ZONE_DMA and ZONE_DMA32
This allows to dip into zones for lower memory if they are available.
If one of the zones is not available the corresponding GFP_* flag
will evaluate to 0 so they won't change anything. We provide an
arch tunable for those architectures that do not use GFP_DMA for
the lowest 24-bits, given that there are a few.
Roughly based on the x86 code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'Documentation/target')
0 files changed, 0 insertions, 0 deletions