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Merge branch 'sparc64-Use-low-latency-path-to-resume-idle-cpu'

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Vijay Kumar says:

====================
sparc64: Use low latency path to resume idle cpu

CPU_POKE is a low latency path to resume the target cpu if suspended
using CPU_YIELD. Use CPU_POKE to resume cpu if supported by hypervisor.

	     Hackbench results (lower is better):
Number of
Process:		w/o fix		with fix
1  			0.012		 0.010
10			0.021		 0.019
100			0.151		 0.148

Changelog:
v2:
  - Fixed comments and spacing (2/2)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-08-09 22:15:31 -07:00
commit 5389e239eb
7 changed files with 119 additions and 5 deletions
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