* Re: [PATCH -tip 0/4] rtmutex: Spin on owner
[not found] <1432053204-18067-1-git-send-email-dave@stgolabs.net>
@ 2015-05-19 17:22 ` Davidlohr Bueso
0 siblings, 0 replies; 4+ messages in thread
From: Davidlohr Bueso @ 2015-05-19 17:22 UTC (permalink / raw)
To: Thomas Gleixner
Cc: Peter Zijlstra, Ingo Molnar, Steven Rostedt,
Sebastian Andrzej Siewior, linux-kernel
Screwed up email, will resend. Sorry about the noise.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH -tip 0/4] rtmutex: Spin on owner
2015-05-25 20:35 ` Davidlohr Bueso
@ 2015-05-26 19:05 ` Thomas Gleixner
0 siblings, 0 replies; 4+ messages in thread
From: Thomas Gleixner @ 2015-05-26 19:05 UTC (permalink / raw)
To: Davidlohr Bueso
Cc: Peter Zijlstra, Ingo Molnar, Steven Rostedt, Mike Galbraith,
Paul E. McKenney, Sebastian Andrzej Siewior, linux-kernel
On Mon, 25 May 2015, Davidlohr Bueso wrote:
> ping?
pong!
It's in my review backlog list and it's gonna stay there until I
return from vacation and conferencing end of next week.
Thanks,
tglx
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH -tip 0/4] rtmutex: Spin on owner
2015-05-19 17:24 Davidlohr Bueso
@ 2015-05-25 20:35 ` Davidlohr Bueso
2015-05-26 19:05 ` Thomas Gleixner
0 siblings, 1 reply; 4+ messages in thread
From: Davidlohr Bueso @ 2015-05-25 20:35 UTC (permalink / raw)
To: Thomas Gleixner
Cc: Peter Zijlstra, Ingo Molnar, Steven Rostedt, Mike Galbraith,
Paul E. McKenney, Sebastian Andrzej Siewior, linux-kernel
ping?
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH -tip 0/4] rtmutex: Spin on owner
@ 2015-05-19 17:24 Davidlohr Bueso
2015-05-25 20:35 ` Davidlohr Bueso
0 siblings, 1 reply; 4+ messages in thread
From: Davidlohr Bueso @ 2015-05-19 17:24 UTC (permalink / raw)
To: Thomas Gleixner, Peter Zijlstra, Ingo Molnar
Cc: Steven Rostedt, Mike Galbraith, Paul E. McKenney,
Sebastian Andrzej Siewior, Davidlohr Bueso, linux-kernel
Hello,
First three patches are straightforward and found while
going through the code. Patch 4 is the actual meat of the
set, but similar to what we have already in regular mutexes.
While having optimistic spinning in rtmutexes is a desired
feature, I've marked it RFC as I could very well have missed
something inherint in the rt flavor.
Details in the individual patches. Passes pi tests from
Darren's futextest suite as well as all weekend running
pi_stress from rt-tests on a 60 core box.
Thanks!
Davidlohr Bueso (4):
locking/rtmutex: Implement lockless top-waiter wakeup
locking/rtmutex: Use cmp-cmpxchg
locking/rtmutex: Update stale plist comments
locking/rtmutex: Support spin on owner (osq)
include/linux/rtmutex.h | 4 ++
kernel/Kconfig.locks | 4 ++
kernel/locking/rtmutex.c | 175 +++++++++++++++++++++++++++++++++++++++++------
3 files changed, 162 insertions(+), 21 deletions(-)
--
2.1.4
^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-05-19 17:22 ` [PATCH -tip 0/4] rtmutex: Spin on owner Davidlohr Bueso
2015-05-19 17:24 Davidlohr Bueso
2015-05-25 20:35 ` Davidlohr Bueso
2015-05-26 19:05 ` Thomas Gleixner
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