Re: [PATCH v6 6/9] isolation: introduce io_queue isolcpus type

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On 4/24/25 20:19, Daniel Wagner wrote:
Multiqueue drivers spreading IO queues on all CPUs for optimal
performance. The drivers are not aware of the CPU isolated requirement
and will spread all queues ignoring the isolcpus configuration.

Introduce a new isolcpus mask which allows the user to define on which
CPUs IO queues should be placed. This is similar to the managed_irq but
for drivers which do not use the managed IRQ infrastructure.

Signed-off-by: Daniel Wagner <wagi@xxxxxxxxxx>
---
  include/linux/sched/isolation.h | 1 +
  kernel/sched/isolation.c        | 7 +++++++
  2 files changed, 8 insertions(+)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@xxxxxxx                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich




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