Dongli Zhang 53b29c3368 swiotlb: save io_tlb_used to local variable before leaving critical section ...

When swiotlb is full, the kernel would print io_tlb_used. However, the
result might be inaccurate at that time because we have left the critical
section protected by spinlock.

Therefore, we backup the io_tlb_used into local variable before leaving
critical section.

Fixes: 83ca259489 ("swiotlb: dump used and total slots when swiotlb buffer is full")
Suggested-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

2019-04-12 19:44:46 -04:00

..

coherent.c

dma-mapping: remove a few unused exports

2019-01-04 09:03:17 +01:00

contiguous.c

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

2018-09-20 09:01:08 +02:00

debug.c

dma-mapping: remove a few unused exports

2019-01-04 09:03:17 +01:00

direct.c

Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping

2018-12-28 14:12:21 -08:00

dummy.c

dma-mapping: factor out dummy DMA ops

2018-12-13 21:06:12 +01:00

Kconfig

dma-mapping: always build the direct mapping code

2018-12-13 21:06:11 +01:00

Makefile

dma-mapping: factor out dummy DMA ops

2018-12-13 21:06:12 +01:00

mapping.c

dma-mapping: remove dmam_{declare,release}_coherent_memory

2019-01-04 09:03:17 +01:00

remap.c

dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING for remapped allocations

2019-01-05 08:28:29 +01:00

swiotlb.c

swiotlb: save io_tlb_used to local variable before leaving critical section

2019-04-12 19:44:46 -04:00

virt.c

dma-mapping: zero memory returned from dma_alloc_*

2018-12-20 08:13:52 +01:00