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Eric Dumazet ea44828c41 dma-debug: add a schedule point in debug_dma_dump_mappings()

[ Upstream commit 9ff6aa027d ]

debug_dma_dump_mappings() can take a lot of cpu cycles :

lpk43:/# time wc -l /sys/kernel/debug/dma-api/dump
163435 /sys/kernel/debug/dma-api/dump

real	0m0.463s
user	0m0.003s
sys	0m0.459s

Let's add a cond_resched() to avoid holding cpu for too long.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Corentin Labbe <clabbe@baylibre.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-01-04 19:12:43 +01:00

coherent.c

…

contiguous.c

dma-mapping: fix panic caused by passing empty cma command line argument

2018-11-13 11:08:17 -08:00

debug.c

dma-debug: add a schedule point in debug_dma_dump_mappings()

2020-01-04 19:12:43 +01:00

direct.c

dma-direct: do not include SME mask in the DMA supported check

2019-01-13 09:51:05 +01:00