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| author |   Peter Zijlstra <peterz@infradead.org> | 2013-11-25 11:49:10 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2013-12-11 15:53:22 +0100 |
| commit | c7f2e3cd6c1f4932ccc4135d050eae3f7c7aef63 (patch) | |
| tree | 3957a8a7ca4c1196b4e6a875b303fcbaa3c827e1 /tools/lib/symbol | |
| parent | Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (diff) | |
| download | linux-dev-c7f2e3cd6c1f4932ccc4135d050eae3f7c7aef63.tar.xz linux-dev-c7f2e3cd6c1f4932ccc4135d050eae3f7c7aef63.zip | |
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>
Diffstat (limited to 'tools/lib/symbol')
0 files changed, 0 insertions, 0 deletions