From: Martijn Coenen <maco@android.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Greg KH" <gregkh@linuxfoundation.org>,
"John Stultz" <john.stultz@linaro.org>,
"Todd Kjos" <tkjos@google.com>,
"Arve Hjønnevåg" <arve@android.com>,
"Sherry Yang" <sherryy@android.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Amit Pundir" <amit.pundir@linaro.org>,
LKML <linux-kernel@vger.kernel.org>,
devel@driverdev.osuosl.org, "Martijn Coenen" <maco@google.com>
Subject: Re: [PATCH v3 3/6] ANDROID: binder: improve priority inheritance.
Date: Thu, 16 Nov 2017 10:31:25 +0100 [thread overview]
Message-ID: <CAB0TPYFtrvfA1NrqwgygbpqyE6G5OjNe5Gch-p+58T0Cmr7OdQ@mail.gmail.com> (raw)
In-Reply-To: <20171115130341.bnyjytpdjnvqw637@hirez.programming.kicks-ass.net>
On Wed, Nov 15, 2017 at 2:03 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> On Thu, Oct 26, 2017 at 04:07:47PM +0200, Martijn Coenen wrote:
>> By raising the priority of a thread selected for
>> a transaction *before* we wake it up.
>>
>> Delay restoring the priority when doing a reply
>> until after we wake-up the process receiving
>> the reply.
>
> What happens if a thread dies?
Binder threads should never exit, but if they do, the whole process
exits. Anyway in that case we still restore the priority of this
thread - it's in the error path in the "@@ -3328,6 +3369,7 @@"
section.
next prev parent reply other threads:[~2017-11-16 9:31 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-26 14:07 [PATCH v3 0/6] ANDROID: binder: RT priority inheritance Martijn Coenen
2017-10-26 14:07 ` [PATCH v3 1/6] ANDROID: binder: add support for RT prio inheritance Martijn Coenen
2017-11-15 13:01 ` Peter Zijlstra
2017-11-16 9:18 ` Martijn Coenen
2017-11-16 11:27 ` Peter Zijlstra
2017-11-16 13:03 ` Martijn Coenen
2017-11-16 15:10 ` Peter Zijlstra
2017-11-17 10:23 ` Martijn Coenen
2017-10-26 14:07 ` [PATCH v3 2/6] ANDROID: binder: add min sched_policy to node Martijn Coenen
2017-11-15 13:02 ` Peter Zijlstra
2017-11-16 9:27 ` Martijn Coenen
2017-10-26 14:07 ` [PATCH v3 3/6] ANDROID: binder: improve priority inheritance Martijn Coenen
2017-11-15 13:03 ` Peter Zijlstra
2017-11-16 9:31 ` Martijn Coenen [this message]
2017-10-26 14:07 ` [PATCH v3 4/6] ANDROID: binder: add RT inheritance flag to node Martijn Coenen
2017-11-15 13:05 ` Peter Zijlstra
2017-11-16 9:37 ` Martijn Coenen
2017-10-26 14:07 ` [PATCH v3 5/6] ANDROID: binder: don't check prio permissions on restore Martijn Coenen
2017-11-15 13:08 ` Peter Zijlstra
2017-10-26 14:07 ` [PATCH v3 6/6] ANDROID: binder: Add tracing for binder priority inheritance Martijn Coenen
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