| Message ID | 1428357511-16733-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 0b29c52..3344e70 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -508,9 +508,6 @@ static void update_domain_attr_tree(struct sched_domain_attr *dattr, rcu_read_lock(); cpuset_for_each_descendant_pre(cp, pos_css, root_cs) { - if (cp == root_cs) - continue; - /* skip the whole subtree if @cp doesn't have any CPU */ if (cpumask_empty(cp->cpus_allowed)) { pos_css = css_rightmost_descendant(pos_css);
This is a note to let you know that I have just added a patch titled cpuset: Fix cpuset sched_relax_domain_level to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11-ckt19. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.13.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 51323a18922f7d1f327bb2f45f6153fedef099b6 Mon Sep 17 00:00:00 2001 From: Jason Low <jason.low2@hp.com> Date: Fri, 13 Feb 2015 11:58:07 +0800 Subject: cpuset: Fix cpuset sched_relax_domain_level commit 283cb41f426b723a0255702b761b0fc5d1b53a81 upstream. The cpuset.sched_relax_domain_level can control how far we do immediate load balancing on a system. However, it was found on recent kernels that echo'ing a value into cpuset.sched_relax_domain_level did not reduce any immediate load balancing. The reason this occurred was because the update_domain_attr_tree() traversal did not update for the "top_cpuset". This resulted in nothing being changed when modifying the sched_relax_domain_level parameter. This patch is able to address that problem by having update_domain_attr_tree() allow updates for the root in the cpuset traversal. Fixes: fc560a26acce ("cpuset: replace cpuset->stack_list with cpuset_for_each_descendant_pre()") Signed-off-by: Jason Low <jason.low2@hp.com> Signed-off-by: Zefan Li <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org> Tested-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- kernel/cpuset.c | 3 --- 1 file changed, 3 deletions(-) -- 1.9.1