Messages in this thread | | | Date | Wed, 16 Jul 2008 06:17:15 -0500 | From | Dean Nelson <> | Subject | Re: [PATCH 4/8] cpumask: Optimize cpumask_of_cpu in drivers/misc/sgi-xp/xpc_main.c |
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On Tue, Jul 15, 2008 at 02:14:33PM -0700, Mike Travis wrote: > * Optimize various places where a pointer to the cpumask_of_cpu value > will result in reducing stack pressure. > > Based on linux-2.6.tip/master at the following commit: > > commit 0a91813e16ebd5c2d9b5c2acd5b7c91742112c4f > Merge: 9a635fa... 724dce0... > Author: Ingo Molnar <mingo@elte.hu> > Date: Tue Jul 15 14:55:17 2008 +0200 > > Signed-off-by: Mike Travis <travis@sgi.com> > Cc: Dean Nelson <dcn@sgi.com> > --- > drivers/misc/sgi-xp/xpc_main.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > --- linux-2.6.tip.orig/drivers/misc/sgi-xp/xpc_main.c > +++ linux-2.6.tip/drivers/misc/sgi-xp/xpc_main.c > @@ -229,10 +229,11 @@ xpc_hb_checker(void *ignore) > int last_IRQ_count = 0; > int new_IRQ_count; > int force_IRQ = 0; > + cpumask_of_cpu_ptr(cpumask, XPC_HB_CHECK_CPU); > > /* this thread was marked active by xpc_hb_init() */ > > - set_cpus_allowed(current, cpumask_of_cpu(XPC_HB_CHECK_CPU)); > + set_cpus_allowed_ptr(current, cpumask); > > /* set our heartbeating to other partitions into motion */ > xpc_hb_check_timeout = jiffies + (xpc_hb_check_interval * HZ); >
Acked-by: Dean Nelson <dcn@sgi.com>
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