linux-kernel - Re: [PATCH] tty: Only wakeup the line discipline idle queue when queue is active

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 2 Jan 2013 16:21:53 +0100
From:	Ivo Sieben <meltedpianoman@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Jiri Slaby <jslaby@...e.cz>, linux-serial@...r.kernel.org,
	Alan Cox <alan@...ux.intel.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Oleg Nesterov <oleg@...hat.com>, linux-kernel@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH] tty: Only wakeup the line discipline idle queue when
 queue is active

Hi Jiri & Alan,

2013/1/2 Alan Cox <alan@...rguk.ukuu.org.uk>:
>
>> Looks good, but I would prefer the layer to provide us with
>> wake_up_if_active...
>
> Seconded - this is a problem for the wake up logic in the RT tree. Why
> would we ever do anything else ?

I don't understand your responses: do you suggest to implement this
"if active" behavior in:
* A new wake_up function called wake_up_if_active() that is part of
the waitqueue layer?
* Implement this behavior in the existing wake_up() function as part
of the RT patch?

Regards,
Ivo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/