lkml.org 
[lkml]   [2020]   [Jul]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 22/23] fs: default to generic_file_splice_read for files having ->read_iter
On Thu, Jul 30, 2020 at 05:20:46PM +0200, Christoph Hellwig wrote:

> Fortunately I think the fix is pretty easy - remove the special pipe
> zero copy optimization from copy_page_to_iter, and just have the
> callers actually want it because they have pagecache or similar
> refcountable pages use it explicitly for the ITER_PIPE case. That gives
> us a safe default with an opt-in into the optimized variant. I'm
> currently auditing all the users of for how it is used and that looks
> pretty promising.

Huh? What does that have to do with anything?

\
 
 \ /
  Last update: 2020-07-30 18:18    [W:0.085 / U:3.940 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site