From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: [PATCH v3 03/13] xen: introduce cpumask_from_bitmap Date: Wed, 24 Apr 2013 20:07:33 +0100 Message-ID: <1366830463-12153-3-git-send-email-stefano.stabellini@eu.citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xensource.com Cc: keir@xen.org, Ian.Campbell@citrix.com, Stefano Stabellini , tim@xen.org, julien.grall@citrix.com, JBeulich@suse.com List-Id: xen-devel@lists.xenproject.org Introduce a new cpumask function that takes a pointer to bits in memory, builds a cpumask with them and returns it. Signed-off-by: Stefano Stabellini CC: keir@xen.org CC: JBeulich@suse.com --- xen/include/xen/cpumask.h | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/xen/include/xen/cpumask.h b/xen/include/xen/cpumask.h index f931cf2..f6ad154 100644 --- a/xen/include/xen/cpumask.h +++ b/xen/include/xen/cpumask.h @@ -265,6 +265,17 @@ static inline const cpumask_t *cpumask_of(unsigned int cpu) #define cpumask_bits(maskp) ((maskp)->bits) +static inline cpumask_t cpumask_from_bitmap(unsigned long *bits, int nr_bits) +{ + cpumask_t mask; + int len = nr_bits < nr_cpumask_bits ? nr_bits : nr_cpumask_bits; + + memset(&mask, 0x00, sizeof(mask)); + bitmap_copy(mask.bits, bits, len); + + return mask; +} + static inline int cpumask_scnprintf(char *buf, int len, const cpumask_t *srcp) { -- 1.7.2.5