From mboxrd@z Thu Jan 1 00:00:00 1970 From: Li Zefan Subject: [PATCH v2 11/12] cpuset: allow writing offlined masks to cpuset.cpus/mems Date: Fri, 11 Oct 2013 17:51:54 +0800 Message-ID: <5257CA3A.2040705@huawei.com> References: <5257C9A1.1030404@huawei.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5257C9A1.1030404@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Tejun Heo Cc: LKML , cgroups As the configured masks won't be limited by its parent, and the top cpuset's masks won't change when hotplug happens, it's natural to allow writing offlined masks to the configured masks. Signed-off-by; Li Zefan --- kernel/cpuset.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/cpuset.c b/kernel/cpuset.c index e71c04f..a98723d 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -960,7 +960,8 @@ static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs, if (retval < 0) return retval; - if (!cpumask_subset(trialcs->cpus_allowed, cpu_active_mask)) + if (!cpumask_subset(trialcs->cpus_allowed, + top_cpuset.cpus_allowed)) return -EINVAL; } @@ -1238,8 +1239,8 @@ static int update_nodemask(struct cpuset *cs, struct cpuset *trialcs, goto done; if (!nodes_subset(trialcs->mems_allowed, - node_states[N_MEMORY])) { - retval = -EINVAL; + top_cpuset.mems_allowed)) { + retval = -EINVAL; goto done; } } -- 1.8.0.2