From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (netops-testserver-3-out.sgi.com [192.48.171.28]) by ozlabs.org (Postfix) with ESMTP id 95602DDF47 for ; Tue, 21 Oct 2008 04:03:28 +1100 (EST) Message-Id: <20081020170320.850964000@polaris-admin.engr.sgi.com> References: <20081020170319.539427000@polaris-admin.engr.sgi.com> Date: Mon, 20 Oct 2008 10:03:28 -0700 From: Mike Travis To: Ingo Molnar , Rusty Russell Subject: [PATCH 09/35] cpumask: add cpumask_copy() Cc: davej@codemonkey.org.uk, Jeremy Fitzhardinge , Jes Sorensen , IA64 , S390 , peterz@infradead.org, Jack Steiner , linux-kernel@vger.kernel.org, Eric Dumazet , PowerPC , Andi Kleen , Thomas Gleixner , Yinghai Lu , "H. Peter Anvin" , SPARC , Andrew Morton , David Miller List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Since cpumasks are to become pointers to undefined structs, we need to replace assignments. Also, dynamically allocated ones will eventually be nr_cpu_ids bits (<= NR_CPUS), so assignment is a definite no-no. From: Rusty Russell Signed-off-by: Rusty Russell Signed-off-by: Mike Travis --- include/linux/cpumask.h | 8 ++++++++ 1 file changed, 8 insertions(+) --- linux-2.6.28.orig/include/linux/cpumask.h +++ linux-2.6.28/include/linux/cpumask.h @@ -64,6 +64,8 @@ * int next_cpu(cpu, mask) Next cpu past 'cpu', or NR_CPUS * int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids * + * void cpumask_copy(dmask, smask) dmask = smask + * * size_t cpumask_size() Length of cpumask in bytes. * cpumask_t cpumask_of_cpu(cpu) Return cpumask with bit 'cpu' set * (can be used as an lvalue) @@ -351,6 +353,12 @@ static inline void cpumask_fold(struct c bitmap_fold(dstp->bits, origp->bits, sz, NR_CPUS); } +static inline void cpumask_copy(struct cpumask *dstp, + const struct cpumask *srcp) +{ + bitmap_copy(cpumask_bits(dstp), cpumask_bits(srcp), NR_CPUS); +} + /* * Special-case data structure for "single bit set only" constant CPU masks. * --