dma-debug: reorder struct dma_debug_entry fields

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Move all fields used during exact match lookups to the first cache line.
This makes debug_dma_mapping_error() and friends about 50% faster.

Since it removes two 32bit holes, force a cacheline alignment on struct
dma_debug_entry.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

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Eric Dumazet 2019-10-30 12:32:04 -07:00 • committed by Christoph Hellwig

parent 0f665b9e2a

commit d3694f3073

1 changed files with 7 additions and 7 deletions

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kernel/dma/debug.c

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