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authorBert Kenward <bkenward@solarflare.com>2015-10-26 14:23:42 +0000
committerDavid S. Miller <davem@davemloft.net>2015-10-27 19:40:33 -0700
commitc0f9c7e45d374ce6dc369443fa586c2fe228c345 (patch)
treec085878e09c59da0678d3efde12f01597bc8eca8 /net/mpls
parent080a270f5adec1ada1357eb66321e7222cc34301 (diff)
downloadlinux-c0f9c7e45d374ce6dc369443fa586c2fe228c345.tar.bz2
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>
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