lkml.org 
[lkml]   [2008]   [Jul]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 01/14] Introduce cpu_enabled_map and friends
From
Date
Matthew Wilcox <matthew@wil.cx> writes:
>
> I don't understand why we want to know about these CPUs. Surely they
> should be 'possible', but not 'present'? What useful thing can Linux do
> with them?

He explained it in the intro, near the end (I nearly complained about
this too when I hadn't finished reading it completely :):

|The big picture implication is that we can allow userspace
|to interact with disabled CPUs. In this particular example,
|we provide a knob that lets a sysadmin schedule any present
|CPU for firmware deconfiguration or enablement.

The reason sounds pretty exotic, but ok.

-Andi


\
 
 \ /
  Last update: 2008-07-15 12:07    [W:0.099 / U:0.656 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site