Re: [PATCH 1/5] generic __remove_pages() support
- From: Badari Pulavarty <pbadari@xxxxxxxxxx>
- Date: Thu, 06 Mar 2008 11:29:11 -0800
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@xxxxxxxxxx>
---
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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- References:
- [PATCH 0/5] 2.6.25-rc3-mm1 hotplug memory remove updates
- From: Badari Pulavarty
- [PATCH 1/5] generic __remove_pages() support
- From: Badari Pulavarty
- Re: [PATCH 1/5] generic __remove_pages() support
- From: Randy Dunlap
- [PATCH 0/5] 2.6.25-rc3-mm1 hotplug memory remove updates
- Prev by Date: Re: [PATCH] x86_64: show apicid for cpu in proc
- Next by Date: Re: RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag
- Previous by thread: Re: [PATCH 1/5] generic __remove_pages() support
- Next by thread: Re: [PATCH 1/5] generic __remove_pages() support
- Index(es):
Relevant Pages
|
