Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754680AbXLSVE3 (ORCPT ); Wed, 19 Dec 2007 16:04:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752733AbXLSVEU (ORCPT ); Wed, 19 Dec 2007 16:04:20 -0500 Received: from agminet01.oracle.com ([141.146.126.228]:56898 "EHLO agminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752723AbXLSVET (ORCPT ); Wed, 19 Dec 2007 16:04:19 -0500 Date: Wed, 19 Dec 2007 12:55:43 -0800 From: Randy Dunlap To: Remy Bohmer Cc: Steven Rostedt , Arnaldo Carvalho de Melo , Ingo Molnar , Juergen Beisert , Darren Hart , linux-rt-users@vger.kernel.org, Sven-Thorsten Dietrich , LKML Subject: Re: [patch 3/3] Enable setting of IRQ-thread priorities from kernel cmdline. (repost:CC to LKML) Message-Id: <20071219125543.16a9fb70.randy.dunlap@oracle.com> In-Reply-To: <47697888.143f420a.5466.ffff89ba@mx.google.com> References: <20071219194551.315868746@bohmer.net> <47697888.143f420a.5466.ffff89ba@mx.google.com> Organization: Oracle Linux Eng. X-Mailer: Sylpheed 2.4.7 (GTK+ 2.8.10; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2493 Lines: 65 On Wed, 19 Dec 2007 20:45:54 +0100 Remy Bohmer wrote: > Documentation/kernel-parameters.txt | 11 +++ > kernel/softirq.c | 105 ++++++++++++++++++++++++++++++------ > 2 files changed, 99 insertions(+), 17 deletions(-) > > Index: linux-2.6.24-rc5-rt1/Documentation/kernel-parameters.txt > =================================================================== > --- linux-2.6.24-rc5-rt1.orig/Documentation/kernel-parameters.txt 2007-12-18 22:06:11.000000000 +0100 > +++ linux-2.6.24-rc5-rt1/Documentation/kernel-parameters.txt 2007-12-18 22:07:19.000000000 +0100 > @@ -806,6 +806,17 @@ and is between 256 and 4096 characters. > If this cmdline argument is ommitted, every thread > runs at prio 50. > > + sirq_pmap= [IRQ-threading] List of priorities each softirq > + thread must have. > + Format: sirq_pmap=block/0:90,sched/0:75,50 > + The priorities have to be specified per-cpu. > + The first field without ':', is the default prio. Drop comma. > + The names have to match the softirq_names[] table in > + kernel/softirq.c, (thus without 'softirq-' prefix) to > + keep the cmd-line short. > + If this cmdline argument is ommitted, every softirq omitted, > + runs at prio 50. > + > ports= [IP_VS_FTP] IPVS ftp helper module > Default is 21. > Up to 8 (IP_VS_APP_MAX_PORTS) ports > Index: linux-2.6.24-rc5-rt1/kernel/softirq.c > =================================================================== > --- linux-2.6.24-rc5-rt1.orig/kernel/softirq.c 2007-12-18 22:06:11.000000000 +0100 > +++ linux-2.6.24-rc5-rt1/kernel/softirq.c 2007-12-18 22:08:54.000000000 +0100 > @@ -1051,3 +1062,63 @@ int on_each_cpu(void (*func) (void *info > } > EXPORT_SYMBOL(on_each_cpu); > #endif > + > +/* > + * Lookup the softirq thread priority. > + * A map for the priorities can be given on the kernel commandline. > + * if name is NULL, or no kernel commandline options is given, the default If ...................................... option is given, > + * prio is returned, which is either MAX_PRIO/2, or the default given on the > + * kernel commandline. > + */ > +static int get_softirq_prio(const char *name) > +{ ... > +} --- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/