From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756282AbbAXOI2 (ORCPT ); Sat, 24 Jan 2015 09:08:28 -0500 Received: from mail-qg0-f52.google.com ([209.85.192.52]:56221 "EHLO mail-qg0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753801AbbAXOEP (ORCPT ); Sat, 24 Jan 2015 09:04:15 -0500 From: Tejun Heo To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, Tejun Heo , Christoph Lameter Subject: [PATCH 17/32] percpu: use %*pb[l] to print bitmaps including cpumasks and nodemasks Date: Sat, 24 Jan 2015 09:03:23 -0500 Message-Id: <1422108218-25398-18-git-send-email-tj@kernel.org> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1422108218-25398-1-git-send-email-tj@kernel.org> References: <1422108218-25398-1-git-send-email-tj@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org printk and friends can now formap bitmaps using '%*pb[l]'. cpumask and nodemask also provide cpumask_pr_args() and nodemask_pr_args() respectively which can be used to generate the two printf arguments necessary to format the specified cpu/nodemask. This patch is dependent on the following two patches. lib/vsprintf: implement bitmap printing through '%*pb[l]' cpumask, nodemask: implement cpumask/nodemask_pr_args() Please wait till the forementioned patches are merged to mainline before applying to subsystem trees. Signed-off-by: Tejun Heo Cc: Andrew Morton Cc: Christoph Lameter --- mm/percpu.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/percpu.c b/mm/percpu.c index d39e2f4..73c97a5 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1528,7 +1528,6 @@ static void pcpu_dump_alloc_info(const char *lvl, int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, void *base_addr) { - static char cpus_buf[4096] __initdata; static int smap[PERCPU_DYNAMIC_EARLY_SLOTS] __initdata; static int dmap[PERCPU_DYNAMIC_EARLY_SLOTS] __initdata; size_t dyn_size = ai->dyn_size; @@ -1541,12 +1540,11 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, int *unit_map; int group, unit, i; - cpumask_scnprintf(cpus_buf, sizeof(cpus_buf), cpu_possible_mask); - #define PCPU_SETUP_BUG_ON(cond) do { \ if (unlikely(cond)) { \ pr_emerg("PERCPU: failed to initialize, %s", #cond); \ - pr_emerg("PERCPU: cpu_possible_mask=%s\n", cpus_buf); \ + pr_emerg("PERCPU: cpu_possible_mask=%*pb\n", \ + cpumask_pr_args(cpu_possible_mask)); \ pcpu_dump_alloc_info(KERN_EMERG, ai); \ BUG(); \ } \ -- 2.1.0