lkml.org 
[lkml]   [2009]   [Jun]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RESEND PATCH] mm: clear N_HIGH_MEMORY map before se set it again -v2
Christoph Lameter wrote:
> Ok. The N_HIGH_MEMORY bit is set for all onlines nodes in a loop
> that follows the code you modified. The patch insures that bits do not
> remain set that earlier arch / core code may have set.
>
> Could you make the description clearer?
>

how about

Subject: [PATCH] mm: clear N_HIGH_MEMORY map before se set it again -v3

in case some system strange SRAT table. some kind of small range form some node
or with mem= boot option etc. that node will not be onlined.
In the early checking, the bit in node_states[N_HIGH_MEMORY] for the
node is set even that node has less RAM like 1M.

The N_HIGH_MEMORY bit is set for all onlines nodes in a loop that follows the
code that is modified. The patch insures that bits do not remain set that
earlier arch / core code may have set.

for 64bit N_HIGH_MEMORY == N_NORMAL_MEMORY, so that works for 64 bit too

v3: update description according to Christoph



\
 
 \ /
  Last update: 2009-06-04 18:53    [W:0.101 / U:1.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site