The following commit has been merged into the sched/core branch of tip: Commit-ID: b7cc6ec744b307db59568c654a8904a5928aa855 Gitweb: https://git.kernel.org/tip/b7cc6ec744b307db59568c654a8904a5928aa855 Author: Mel Gorman <mgor...@suse.de> AuthorDate: Wed, 24 Mar 2021 13:39:16 Committer: Peter Zijlstra <pet...@infradead.org> CommitterDate: Fri, 16 Apr 2021 17:06:33 +02:00
sched/numa: Allow runtime enabling/disabling of NUMA balance without SCHED_DEBUG The ability to enable/disable NUMA balancing is not a debugging feature and should not depend on CONFIG_SCHED_DEBUG. For example, machines within a HPC cluster may disable NUMA balancing temporarily for some jobs and re-enable it for other jobs without needing to reboot. This patch removes the dependency on CONFIG_SCHED_DEBUG for kernel.numa_balancing sysctl. The other numa balancing related sysctls are left as-is because if they need to be tuned then it is more likely that NUMA balancing needs to be fixed instead. Signed-off-by: Mel Gorman <mgor...@suse.de> Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org> Tested-by: Valentin Schneider <valentin.schnei...@arm.com> Link: https://lkml.kernel.org/r/20210324133916.gq15...@suse.de --- kernel/sysctl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 62fbd09..8042098 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1753,6 +1753,9 @@ static struct ctl_table kern_table[] = { .proc_handler = proc_dointvec_minmax, .extra1 = SYSCTL_ONE, }, +#endif /* CONFIG_NUMA_BALANCING */ +#endif /* CONFIG_SCHED_DEBUG */ +#ifdef CONFIG_NUMA_BALANCING { .procname = "numa_balancing", .data = NULL, /* filled in by handler */ @@ -1763,7 +1766,6 @@ static struct ctl_table kern_table[] = { .extra2 = SYSCTL_ONE, }, #endif /* CONFIG_NUMA_BALANCING */ -#endif /* CONFIG_SCHED_DEBUG */ { .procname = "sched_rt_period_us", .data = &sysctl_sched_rt_period,
