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| author | Thomas Gleixner <tglx@linutronix.de> | 2013-02-21 23:51:40 +0100 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2013-04-04 22:18:32 +0200 |
| commit | ca4523cda429712fc135c5db50920d90eb776a6c (patch) | |
| tree | 6a8c260a24bcd5a188d25790984d0aa5a3fb3428 /kernel/hrtimer.c | |
| parent | timekeeping: Implement a shadow timekeeper (diff) | |
| download | linux-ca4523cda429712fc135c5db50920d90eb776a6c.tar.xz linux-ca4523cda429712fc135c5db50920d90eb776a6c.zip | |
timekeeping: Shorten seq_count region
Shorten the seqcount write hold region to the actual update of the
timekeeper and the related data (e.g vsyscall).
On a contemporary x86 system this reduces the maximum latencies on
Preempt-RT from 8us to 4us on the non-timekeeping cores.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'kernel/hrtimer.c')
0 files changed, 0 insertions, 0 deletions