| commit | d8e8c7dda11f5d5cf90495f2e89d917a83509bc0 | [log] [tgz] |
|---|---|---|
| author | Vineet Gupta <vgupta@synopsys.com> | Thu Nov 28 13:57:54 2013 +0530 |
| committer | Vineet Gupta <vgupta@synopsys.com> | Mon Dec 23 12:05:04 2013 +0530 |
| tree | 8b8414e2bd4ed6b92bf35a36a3d891fa14399661 | |
| parent | f2a4aa5646687f9a51616581221b1d348590d47e [diff] |
ARC: [SMP] optimize IPI send and receive * Don't send an IPI if receiver already has a pending IPI. Atomically piggyback the new msg with pending msg. * IPI receiver looping on xchg() not required References: https://lkml.org/lkml/2013/11/25/232 Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>