lkml.org 
[lkml]   [2016]   [Aug]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 2/9] ext2: tell DAX the size of allocation holes
On Mon, Aug 29, 2016 at 12:41:16AM -0700, Christoph Hellwig wrote:
>
> We're going to move forward killing buffer_heads in XFS. I think ext4
> would dramatically benefit from this a well, as would ext2 (although I
> think all that DAX work in ext2 is a horrible idea to start with).

It's been on my todo list. The only reason why I haven't done it yet
is because I knew you were working on a solution, and I didn't want to
do things one way for buffered I/O, and a different way for Direct
I/O, and disentangling the DIO code and the different assumptions of
how different file systems interact with the DIO code is a *mess*.

It may have gotten better more recently, but a few years ago I took a
look at it and backed slowly away.....

- Ted

\
 
 \ /
  Last update: 2016-09-17 09:58    [W:0.113 / U:0.712 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site