Re: [PATCH v13 04/13] cpumask: Introduce cpu_preferred_mask
From: sashiko-bot@kernel.org
Date: 2026-09-09 14:06:26
Provide the preferred CPU infrastructure. Define get/set macros which could be used to get/set CPU state as preferred. CONFIG_PREFERRED_CPU will be selected by the driver which handles steal time values. It is going to set/clear preferred CPU state. This driver will be called steal_governor and it is introduced in subsequent patches. It periodically computes the steal ratio and decides on preferred CPU state. A CPU is set to preferred when it becomes active. Later it may be marked as non-preferred depending on steal ratio by the steal_governor. Always maintain design construct of preferred is subset of active. i.e. preferred ⊆ active ⊆ online ⊆ present ⊆ possible With CONFIG_PREFERRED_CPU=n, ensure set_cpu_preferred is a nop and get method returns the active state in that case. Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Sashiko has reviewed this patch and found no issues. It looks great! -- Sashiko AI review · https://sashiko.dev/#/patchset/20260909135617.871006-1-sshegde@linux.ibm.com?part=4