Hi Finn,
Thanks for reviewing the patch set.
On 2021/2/8 15:57, Finn Thain wrote:
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.
Linux doesn't support nested interrupts anymore after the following
patch, so please don't worry this.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e58aa3d2d0cc
Were you able to measure any benefit from this change on some other
platform?
It's hard to measure the benefit of this change. Hmm, you could take
this patch set as cleanup. thanks.
Please see also,
https://lore.kernel.org/linux-scsi/89c5cb05cb844939ae684db0077f675f@xxxxxxx/
.
