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| author | Bert Kenward <bkenward@solarflare.com> | 2015-10-26 14:23:42 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-27 19:40:33 -0700 |
| commit | c0f9c7e45d374ce6dc369443fa586c2fe228c345 (patch) | |
| tree | c085878e09c59da0678d3efde12f01597bc8eca8 /mm/dmapool.c | |
| parent | 080a270f5adec1ada1357eb66321e7222cc34301 (diff) | |
| download | op-kernel-dev-c0f9c7e45d374ce6dc369443fa586c2fe228c345.zip op-kernel-dev-c0f9c7e45d374ce6dc369443fa586c2fe228c345.tar.gz | |
sfc: replace spinlocks with bit ops for busy poll locking
This patch reduces the overhead of locking for busy poll.
Previously the state was protected by a lock, whereas now
it's manipulated solely with atomic operations.
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/dmapool.c')
0 files changed, 0 insertions, 0 deletions
