Re: [PATCH for-next 00/32] spin lock usage optimization for SCSI drivers

Finn Thain
2021-02-08T07:58:16Z

On Sun, 7 Feb 2021, Xiaofei Tan wrote:

> Replace spin_lock_irqsave with spin_lock in hard IRQ of SCSI drivers.
> There are no function changes, but may speed up if interrupt happen too
> often.

This change doesn't necessarily work on platforms that support nested
interrupts.

Were you able to measure any benefit from this change on some other
platform?

Please see also,