lkml.org 
[lkml]   [2021]   [Jan]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] mm/page_alloc: remove the static for local variable node_order
On Mon, Jan 04, 2021 at 03:23:57PM -0800, Andrew Morton wrote:
> On Wed, 30 Dec 2020 12:42:33 +0000 Matthew Wilcox <willy@infradead.org> wrote:
>
> > On Wed, Dec 30, 2020 at 07:40:14PM +0800, Hui Su wrote:
> > > local variable node_order do not need the static here.
> >
> > It bloody well does. It can be up to 2^10 entries on x86 (and larger
> > on others) That's 4kB which you've now moved onto the stack.
>
> That being said, could we kmalloc the scratch area in
> __build_all_zonelists()? And maybe remove that static spinlock?
>
> (what blocks node and cpu hotplug in there??)

if we don't have the zonelists built yet, can slab possibly be operational?

\
 
 \ /
  Last update: 2021-01-05 02:33    [W:0.233 / U:0.408 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site