lkml.org 
[lkml]   [2008]   [Mar]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 1/5] generic __remove_pages() support
From
Date
On Thu, 2008-03-06 at 11:08 -0800, Randy Dunlap wrote:
> On Thu, 06 Mar 2008 10:55:34 -0800 Badari Pulavarty wrote:
>
> > Generic helper function to remove section mappings and sysfs entries
> > for the section of the memory we are removing. offline_pages() correctly
> > adjusted zone and marked the pages reserved.
>
> Such generic (exported, non-static) interfaces could use some
> (kernel-)docs, please.

Sure. Will do.

> > Issue: If mem_map, usemap allocation could come from different places -
> > kmalloc, vmalloc, alloc_pages or bootmem. There is no easy way
> > to find and free up bootmem allocations.
> >
> > Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
> >
> > ---
> > include/linux/memory_hotplug.h | 4 +++
> > mm/memory_hotplug.c | 44 +++++++++++++++++++++++++++++++++++++++++
> > mm/sparse.c | 43 +++++++++++++++++++++++++++++++++++++---
> > 3 files changed, 88 insertions(+), 3 deletions(-)
>
> > Index: linux-2.6.25-rc2/include/linux/memory_hotplug.h
> > ===================================================================
> > --- linux-2.6.25-rc2.orig/include/linux/memory_hotplug.h 2008-02-27 12:58:17.000000000 -0800
> > +++ linux-2.6.25-rc2/include/linux/memory_hotplug.h 2008-02-27 13:00:04.000000000 -0800
> > @@ -64,6 +65,8 @@ extern int offline_pages(unsigned long,
> > /* reasonably generic interface to expand the physical pages in a zone */
> > extern int __add_pages(struct zone *zone, unsigned long start_pfn,
> > unsigned long nr_pages);
> > +extern int __remove_pages(struct zone *zone, unsigned long start_pfn,
> > + unsigned long nr_pages);
> >
> > /*
> > * Walk thorugh all memory which is registered as resource.
>
> through :)

I will fix that.

Thanks,
Badari



\
 
 \ /
  Last update: 2008-03-06 20:29    [W:0.068 / U:0.540 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site