scsi: lpfc: Use irq_set_affinity()
The driver uses irq_set_affinity_hint to set the affinity for the lpfc interrupts to a mask corresponding to the local NUMA node to avoid performance overhead on AMD architectures. However, irq_set_affinity_hint() setting the affinity is an undocumented side effect that this function also sets the affinity under the hood. To remove this side effect irq_set_affinity_hint() has been marked as deprecated and new interfaces have been introduced. Also, as per the commit dcaa2136 ("scsi: lpfc: Change default IRQ model on AMD architectures"): "On AMD architecture, revert the irq allocation to the normal style (non-managed) and then use irq_set_affinity_hint() to set the cpu affinity and disable user-space rebalancing." we don't really need to set the affinity_hint as user-space rebalancing for the lpfc interrupts is not desired. Hence, replace the irq_set_affinity_hint() with irq_set_affinity() which only applies the affinity for the interrupts. Signed-off-by: NNitesh Narayan Lal <nitesh@redhat.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NJames Smart <jsmart2021@gmail.com> Link: https://lore.kernel.org/r/20210903152430.244937-12-nitesh@redhat.com
Showing
想要评论请 注册 或 登录