Re: [RFC][PATCH] libata: enable SATA disk fua detection on default
From: Christoph Hellwig <hch@infradead.org>
Date: 2012-05-09 13:23:22
Also in:
linux-scsi, lkml
On Wed, May 09, 2012 at 08:48:04PM +0800, Zheng Liu wrote:
Thanks for your explanation. It seems that there still has a problem. If I set the disk to write through mode, I need to modify my application to remove all of flush/sync operations. It is unacceptable for us.
You don't have to - the kernel will not send a SYNCHRONIZE CACHE command unless the disk advertises a write back cache.