Re: [linuxppc-release] [PATCH v2 4/4] fsl-dma: use spin_lock_bh to instead of spin_lock_irqsave
From: Timur Tabi <hidden>
Date: 2012-07-11 15:01:08
Also in:
linuxppc-dev
Qiang Liu wrote:
Use spin_lock_bh to instead of spin_lock_irqsave for improving performance.
Please provide some evidence that performance has improved, as well as an explanation why it's okay to use spin_lock_bh, and why it's faster. -- Timur Tabi Linux kernel developer at Freescale