linux-kernel - Re: [linux-pm] [suspend/resume] Re: userspace notification from module

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]

Message-Id: <20100105090706.751D233C4B0@tippex.mynet.homeunix.org>
Date:	Tue, 05 Jan 2010 10:07:06 +0100
From:	Anders Eriksson <aeriksson@...tmail.fm>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Bartłomiej Zimoń <uzi18@...pl>,
	awalls@...ix.net, linux-pm@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, danborkmann@...glemail.com
Subject: Re: [linux-pm] [suspend/resume] Re: userspace notification from module


rjw@...k.pl said:
>> > I don't see a problem with this in principle, although I don't think signals
>> > are very suitable for this particular purpose, because you need two-way
>> > communication between the power manager and the processes it's going to
>> > notify (because it has to wait for the processes to finish their preparations
>> > and to tell it that they are ready). 

Wouldn't there need to be dependecy tracking for the userspace processes? A 
process couldn't signal "done" until it know there's no more work to do, which 
requires all other processes to finish up first.

--
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/