lkml.org 
[lkml]   [2011]   [Apr]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v3] mm: make expand_downwards symmetrical to expand_upwards
Date
> On Thu, 21 Apr 2011, KOSAKI Motohiro wrote:
>
> > ia64 and mips have CONFIG_ARCH_POPULATES_NODE_MAP and it initialize
> > N_NORMAL_MEMORY automatically if my understand is correct.
> > (plz see free_area_init_nodes)
> >
>
> ia64 doesn't enable CONFIG_HIGHMEM, so it never gets set via this generic
> code; mips also doesn't enable it for all configs even for 32-bit.
>
> So we'll either want to take check_for_regular_memory() out from under
> CONFIG_HIGHMEM and do it for all configs or teach slub to use
> N_HIGH_MEMORY rather than N_NORMAL_MEMORY.

Hey, I already told this thing.

If CONFIG_HIGHMEM=n, N_HIGH_MEMORY and N_NORMAL_MEMORY are share the
same value. then,
node_set_state(nid, N_HIGH_MEMORY) in free_area_init_nodes()

mean set both N_HIGH_MEMORY and N_NORMAL_MEMORY.




\
 
 \ /
  Last update: 2011-04-22 02:37    [W:0.149 / U:0.656 seconds]
©2003-2014 Jasper Spaans. Advertise on this site