linux-kernel - Re: [RFC v0 0/3] Simple wait queue support

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:	Thu, 6 Aug 2015 23:36:49 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Daniel Wagner <daniel.wagner@...-carit.de>,
	linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org,
	bigeasy@...utronix.de, tglx@...utronix.de,
	paulmck@...ux.vnet.ibm.com
Subject: Re: [RFC v0 0/3] Simple wait queue support

On Thu, Aug 06, 2015 at 03:31:20PM -0400, Steven Rostedt wrote:
> > 4) poll_wait: currently it and poll_table_entry are both hard coupled
> >    to wait_queue_head_t -- so any users of poll_wait are not eligible
> >    for conversion to simple wait. (I just happened to notice that
> >    recently.)  A quick grep shows ~500 poll_wait users.
> 
> Looks like a good candidate to test the cwait on :-)

Poll uses custom wake functions, which disqualifies them on the spot.
--
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/