From: Juri Lelli <juri.lelli@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: mingo@kernel.org, will@kernel.org, oleg@redhat.com,
tglx@linutronix.de, linux-kernel@vger.kernel.org,
bigeasy@linutronix.de, williams@redhat.com, bristot@redhat.com,
longman@redhat.com, dave@stgolabs.net, jack@suse.com
Subject: Re: [PATCH -v2 0/7] locking: Percpu-rwsem rewrite
Date: Mon, 3 Feb 2020 13:25:14 +0100 [thread overview]
Message-ID: <20200203122514.GK8582@localhost.localdomain> (raw)
In-Reply-To: <20200131150703.194229898@infradead.org>
Hi,
On 31/01/20 16:07, Peter Zijlstra wrote:
> Hi all,
>
> This is the long awaited report of the percpu-rwsem rework (sorry Juri).
>
> IIRC (I really have trouble keeping up momentum on this series) I've addressed
> all previous comments by Oleg and Davidlohr and Waiman and hope we can stick
> this in tip/locking/core for inclusion in the next merge.
>
> It has been cooked (thoroughly) in PREEMPT_RT, and not found wanting.
>
> Any objections to me stuffing it in so we can all forget about it properly?
FWIW, backported and tested again on downstream PREEMPT_RT kernel.
locktorture didn't find any problem and latencies look good.
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Thanks!
Juri
next prev parent reply other threads:[~2020-02-03 12:25 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-31 15:07 [PATCH -v2 0/7] locking: Percpu-rwsem rewrite Peter Zijlstra
2020-01-31 15:07 ` [PATCH -v2 1/7] locking/percpu-rwsem, lockdep: Make percpu-rwsem use its own lockdep_map Peter Zijlstra
2020-02-11 12:48 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2020-01-31 15:07 ` [PATCH -v2 2/7] locking/percpu-rwsem: Convert to bool Peter Zijlstra
2020-02-11 12:48 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2020-01-31 15:07 ` [PATCH -v2 3/7] locking/percpu-rwsem: Move __this_cpu_inc() into the slowpath Peter Zijlstra
2020-02-11 12:48 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2020-01-31 15:07 ` [PATCH -v2 4/7] locking/percpu-rwsem: Extract __percpu_down_read_trylock() Peter Zijlstra
2020-02-11 12:48 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2020-01-31 15:07 ` [PATCH -v2 5/7] locking/percpu-rwsem: Remove the embedded rwsem Peter Zijlstra
2020-02-03 11:45 ` Kirill Tkhai
2020-02-03 13:44 ` Peter Zijlstra
2020-02-03 14:33 ` Kirill Tkhai
2020-02-03 14:20 ` Christoph Hellwig
2020-02-03 15:09 ` Peter Zijlstra
2020-02-03 17:48 ` Christoph Hellwig
2020-02-04 8:50 ` Peter Zijlstra
2020-02-04 9:22 ` [PATCH] locking/rwsem: Remove RWSEM_OWNER_UNKNOWN Peter Zijlstra
2020-02-11 12:48 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2020-02-04 9:24 ` [PATCH -v2-mkII 5/7] locking/percpu-rwsem: Remove the embedded rwsem Peter Zijlstra
2020-02-11 12:48 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2020-01-31 15:07 ` [PATCH -v2 6/7] locking/percpu-rwsem: Fold __percpu_up_read() Peter Zijlstra
2020-02-11 12:48 ` [tip: locking/core] " tip-bot2 for Davidlohr Bueso
2020-01-31 15:07 ` [PATCH -v2 7/7] locking/percpu-rwsem: Add might_sleep() for writer locking Peter Zijlstra
2020-01-31 19:23 ` [PATCH -v2 0/7] locking: Percpu-rwsem rewrite Waiman Long
2020-02-01 16:23 ` Davidlohr Bueso
2020-02-03 10:51 ` Sebastian Andrzej Siewior
2020-02-03 12:25 ` Juri Lelli [this message]
2020-02-03 18:08 ` Will Deacon
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