lkml.org 
[lkml]   [2014]   [Jul]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] mm: don't allow fault_around_bytes to be 0
On Mon, 28 Jul 2014, Andrey Ryabinin wrote:

> do_fault_around expects fault_around_bytes rounded down to nearest
> page order. Instead of calling rounddown_pow_of_two every time
> in fault_around_pages()/fault_around_mask() we could do round down
> when user changes fault_around_bytes via debugfs interface.
>

If you're going to optimize this, it seems like fault_around_bytes would
benefit from being __read_mostly.


\
 
 \ /
  Last update: 2014-07-29 01:21    [W:0.105 / U:0.296 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site