Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io
From: "hch@infradead.org" <hch@infradead.org>
Date: 2016-05-08 09:01:48
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linux-ext4, linux-fsdevel, linux-mm, linux-xfs, lkml
On Thu, May 05, 2016 at 09:39:14PM +0000, Verma, Vishal L wrote:
How is it any 'less direct'? All it does now is follow the blockdev O_DIRECT path. There still isn't any page cache involved..
It's still more overhead than the play DAX I/O path.