swiotlb: panic if nslabs is too small

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Panic on purpose if nslabs is too small, in order to sync with the remap
retry logic.

In addition, print the number of bytes for tlb alloc failure.

Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

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Dongli Zhang 2022-06-11 01:25:14 -07:00 • committed by Christoph Hellwig

parent 04c14e8e38

commit 0bf28fc40d

1 changed files with 5 additions and 1 deletions

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kernel/dma/swiotlb.c

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