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Date: Thu, 02 Apr 2009 09:13:23 +0900 From: Tejun Heo <htejun@...il.com> To: Eric Dumazet <dada1@...mosbay.com> CC: Ingo Molnar <mingo@...e.hu>, Jeremy Fitzhardinge <jeremy@...p.org>, linux kernel <linux-kernel@...r.kernel.org>, Linux Netdev List <netdev@...r.kernel.org>, Joe Perches <joe@...ches.com>, Rusty Russell <rusty@...tcorp.com.au> Subject: Re: [RFC] percpu: convert SNMP mibs to new infra Hello, Eric, Ingo. Eric Dumazet wrote: > diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h > index aee103b..6b82f6b 100644 > --- a/arch/x86/include/asm/percpu.h > +++ b/arch/x86/include/asm/percpu.h > @@ -135,6 +135,9 @@ do { \ > #define percpu_read(var) percpu_from_op("mov", per_cpu__##var) > #define percpu_write(var, val) percpu_to_op("mov", per_cpu__##var, val) > #define percpu_add(var, val) percpu_to_op("add", per_cpu__##var, val) > +#define indir_percpu_add(var, val) percpu_to_op("add", *(var), val) > +#define indir_percpu_inc(var) percpu_to_op("add", *(var), 1) > +#define indir_percpu_dec(var) percpu_to_op("add", *(var), -1) > #define percpu_sub(var, val) percpu_to_op("sub", per_cpu__##var, val) > #define percpu_and(var, val) percpu_to_op("and", per_cpu__##var, val) > #define percpu_or(var, val) percpu_to_op("or", per_cpu__##var, val) The final goal is to unify static and dynamic accesses but we aren't there yet, so, for the time being, we'll need some interim solutions. I would prefer percpu_ptr_add() tho. Thanks. -- tejun -- 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/
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