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| author | Eric Dumazet <[email protected]> | 2019-10-28 21:56:46 +0000 |
|---|---|---|
| committer | Christoph Hellwig <[email protected]> | 2019-10-30 18:09:35 +0000 |
| commit | 9ff6aa027dbb98755f0265695354f2dd07c0d1ce (patch) | |
| tree | d6bb4e4288065583d14c1f16aaaeb4943c35e492 /drivers/net/xen-netback/interface.c | |
| parent | dma-mapping: Add vmap checks to dma_map_single() (diff) | |
| download | kernel-9ff6aa027dbb98755f0265695354f2dd07c0d1ce.tar.gz kernel-9ff6aa027dbb98755f0265695354f2dd07c0d1ce.zip | |
dma-debug: add a schedule point in debug_dma_dump_mappings()
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 <[email protected]>
Cc: Corentin Labbe <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions