From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>,
tglx@linutronix.de, mingo@kernel.org, bigeasy@linutronix.de,
umgwanakikbuti@gmail.com, paulmck@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org, kmo@daterainc.com
Subject: Re: [PATCH 4/3] rtmutex: Avoid barrier in rt_mutex_handle_deadlock
Date: Tue, 22 Mar 2016 22:46:28 +0100 [thread overview]
Message-ID: <20160322214628.GA3528@osiris> (raw)
In-Reply-To: <20160322164122.GS6344@twins.programming.kicks-ass.net>
On Tue, Mar 22, 2016 at 05:41:22PM +0100, Peter Zijlstra wrote:
> On Tue, Mar 22, 2016 at 03:45:37PM +0100, Heiko Carstens wrote:
>
> > Sure, looks nice and makes a lot of sense. And the text looks a bit familiar
> > to me ;)
> >
> > Could you provide From: and Signed-off-by: lines?
>
> Of course, find below.
>
> ---
> Subject: s390: Clarify pagefault interrupt
> From: Peter Zijlstra <peterz@infradead.org>
>
> While looking at set_task_state() users I stumbled over the s390 pfault
> interrupt code. Since Heiko provided a great explanation on how it
> worked, I figured we ought to preserve this.
>
> Also make a few little tweaks to the code to aid in readability and
> explicitly comment the unusual blocking scheme.
>
> Based-on-text-by: Heiko Carstens <heiko.carstens@de.ibm.com>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> ---
> arch/s390/mm/fault.c | 44 ++++++++++++++++++++++++++++++++++++--------
> 1 file changed, 36 insertions(+), 8 deletions(-)
Applied, with some whitespace changes from me. Thank you!
next prev parent reply other threads:[~2016-03-22 21:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-08 18:20 [PATCH -tip 0/3] locking/rtmutex: Another crack at spin on owner Davidlohr Bueso
2016-03-08 18:20 ` [PATCH 1/3] rtmutex: Delete save_state member of struct rt_mutex Davidlohr Bueso
2016-03-08 18:20 ` [PATCH 2/3] rtmutex: Add rt_mutex_init_waiter helper Davidlohr Bueso
2016-03-14 13:16 ` Peter Zijlstra
2016-03-08 18:20 ` [PATCH 3/3] rtmutex: Reduce top-waiter blocking on a lock Davidlohr Bueso
2016-03-14 13:23 ` Peter Zijlstra
2016-03-08 22:05 ` [PATCH 4/3] rtmutex: Avoid barrier in rt_mutex_handle_deadlock Davidlohr Bueso
2016-03-14 13:40 ` Peter Zijlstra
2016-03-21 18:16 ` Davidlohr Bueso
2016-03-22 10:21 ` Peter Zijlstra
2016-03-22 11:32 ` Heiko Carstens
2016-03-22 12:20 ` Peter Zijlstra
2016-03-22 13:26 ` Heiko Carstens
2016-03-22 13:55 ` Peter Zijlstra
2016-03-22 14:45 ` Heiko Carstens
2016-03-22 16:41 ` Peter Zijlstra
2016-03-22 21:46 ` Heiko Carstens [this message]
2016-03-25 2:30 ` Davidlohr Bueso
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