Commit 662ff1aa authored by Frederic Weisbecker's avatar Frederic Weisbecker
Browse files

net: Keep ignoring isolated cpuset change 



RPS cpumask can be overriden through sysfs/syctl. The boot defined
isolated CPUs are then excluded from that cpumask.

However HK_TYPE_DOMAIN will soon integrate cpuset isolated
CPUs updates and the RPS infrastructure needs more thoughts to be able
to propagate such changes and synchronize against them.

Keep handling only what was passed through "isolcpus=" for now.

Signed-off-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Marco Crivellari <marco.crivellari@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Simon Horman <horms@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Waiman Long <longman@redhat.com>
Cc: netdev@vger.kernel.org
parent 4a062d33

net/core/net-sysfs.c

+1 −1
Original line number Diff line number Diff line
@@ -1022,7 +1022,7 @@ static int netdev_rx_queue_set_rps_mask(struct netdev_rx_queue *queue, 
int rps_cpumask_housekeeping(struct cpumask *mask)

{

	if (!cpumask_empty(mask)) {

		cpumask_and(mask, mask, housekeeping_cpumask(HK_TYPE_DOMAIN));

		cpumask_and(mask, mask, housekeeping_cpumask(HK_TYPE_DOMAIN_BOOT));

		cpumask_and(mask, mask, housekeeping_cpumask(HK_TYPE_WQ));

		if (cpumask_empty(mask))

			return -EINVAL;