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| author |   Christoph Hellwig <hch@lst.de> | 2018-09-30 16:13:33 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-10-19 08:48:28 +0200 |
| commit | fafadcd16595c1df82df399f62421718ec9bf70a (patch) | |
| tree | c13da3c6e387183a5edd19349ed195c0699ac116 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | swiotlb: refactor swiotlb_map_page (diff) | |
| download | linux-rng-fafadcd16595c1df82df399f62421718ec9bf70a.tar.xz linux-rng-fafadcd16595c1df82df399f62421718ec9bf70a.zip | |
swiotlb: don't dip into swiotlb pool for coherent allocations
All architectures that support swiotlb also have a zone that backs up
these less than full addressing allocations (usually ZONE_DMA32).
Because of that it is rather pointless to fall back to the global swiotlb
buffer if the normal dma direct allocation failed - the only thing this
will do is to eat up bounce buffers that would be more useful to serve
streaming mappings.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions