| commit | c7f2e3cd6c1f4932ccc4135d050eae3f7c7aef63 | [log] [tgz] |
|---|---|---|
| author | Peter Zijlstra <peterz@infradead.org> | Mon Nov 25 11:49:10 2013 +0100 |
| committer | Ingo Molnar <mingo@kernel.org> | Wed Dec 11 15:53:22 2013 +0100 |
| tree | 3957a8a7ca4c1196b4e6a875b303fcbaa3c827e1 | |
| parent | 813932149e7847c91f544a03b943a84c5b264f76 [diff] |
perf: Optimize ring-buffer write by depending on control dependencies Remove a full barrier from the ring-buffer write path by relying on a control dependency to order a LOAD -> STORE scenario. Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-8alv40z6ikk57jzbaobnxrjl@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>