At 11/26/2012 10:27 PM, Jianguo Wu Wrote:
> On 2012/11/1 17:44, Wen Congyang wrote:
>> This patch introduces a new function try_offline_node() to
>> remove sysfs file of node when all memory sections of this
>> node are removed. If some memory sections of this node are
served.regions contain two type
memory: bootmem and movable memory. We will put all pages not in
reserved.regions
into buddy system. If we put movable memory in reserved.regions, we have
no chance to put them to buddy system, and can't use them after system boots.
Thanks
Wen Congy
At 11/27/2012 11:22 AM, Jianguo Wu Wrote:
> On 2012/11/27 11:19, Wen Congyang wrote:
>
>> At 11/27/2012 08:58 AM, Jianguo Wu Wrote:
>>> On 2012/11/26 23:48, H. Peter Anvin wrote:
>>>
>>>> On 11/26/2012 05:15 AM, Tang Chen wrote:
>>>>>
>&
be classified as a non-RAM type in memblock. What
do you want to say? We don't save type in memblock because we only
add E820_RAM and E820_RESERVED_KERN to memblock.
Thanks
Wen Congyang
>
> -hpa
>
>
--
To unsubscribe from this list: send the line "unsubscribe linux-ke
->lru.next;
> @@ -710,13 +711,10 @@ static void free_section_usemap(struct page *memmap,
> unsigned long *usemap)
>*/
>
> if (memmap) {
> - struct page *memmap_page;
> - memmap_page = virt_to_page(memmap);
> -
> nr_pag
At 11/27/2012 01:47 PM, Jianguo Wu Wrote:
> On 2012/11/1 17:44, Wen Congyang wrote:
>
>> From: Yasuaki Ishimatsu
>>
>> All pages of virtual mapping in removed memory cannot be freed, since some
>> pages
>> used as PGD/PUD includes not only removed memo
At 11/27/2012 01:47 PM, Jianguo Wu Wrote:
> On 2012/11/1 17:44, Wen Congyang wrote:
>
>> From: Yasuaki Ishimatsu
>>
>> All pages of virtual mapping in removed memory cannot be freed, since some
>> pages
>> used as PGD/PUD includes not only removed memo
lecore_map is more flexible.
>
> ... but *much* harder for users, so movable_node is better in most cases.
But numa is initialized very later, and we need the information in SRAT...
Thanks
Wen Congyang
>
> -hpa
>
>
--
To unsubscribe from this list: send the line "
t for s390).
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
arch/ia64/mm/init.c
-by: Yasuaki Ishimatsu
Signed-off-by: Jianguo Wu
Signed-off-by: Wen Congyang
---
arch/ia64/mm/discontig.c | 8
arch/powerpc/mm/init_64.c | 8
arch/s390/mm/vmem.c | 8
arch/sparc/mm/init_64.c | 8
arch/x86/mm/init_64.c | 119
: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 20 +++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 449663e..d1451ab 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1309,9 +1309,12
: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
drivers/acpi/acpi_memhotplug.c | 8 +-
include/linux/memory_hotplug.h | 2 +-
mm/memory_hotplug.c| 58 --
3 files changed, 64
Ishimatsu
Signed-off-by: Wen Congyang
Signed-off-by: Jianguo Wu
Signed-off-by: Jiang Liu
---
arch/x86/include/asm/pgtable_types.h | 1 +
arch/x86/mm/init_64.c| 231 +++
arch/x86/mm/pageattr.c | 47 +++
3 files changed, 257
: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 13 -
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index e741732
Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 207
1 file changed, 207 insertions(+)
diff --git a/mm/memory_h
Ishimatsu
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 101
1 file changed, 55 insertions(+), 46 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b6d1101..6d06488 100644
--- a/mm/memory_hotplug.c
+++ b/mm
bootmem.
So the patch makes memory leak. But I think the memory leak size is
very samll. And it does not affect the system.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Wen Congyang
Signed
primary memory block.
2nd iterate: offline primary (i.e. first added) memory block.
This idea is suggested by KOSAKI Motohiro.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-b
when a node is offlined
Wen Congyang (6):
memory-hotplug: try to offline the memory twice to avoid dependence
memory-hotplug: remove redundant codes
memory-hotplug: introduce new function arch_remove_memory() for
removing page table depends on architecture
memory-hotplug: remove page
: register_page_bootmem_memmap() is not implemented for ia64, ppc, s390,
and sparc.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
arch/ia64/mm/discontig.c | 6
ohiro
Signed-off-by: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
drivers/base/memory.c | 6 ++
include/linux/memory_hotplug.h | 1 +
mm/memory_hotplug.c| 47 ++
3 files changed, 54 insertions(+)
diff --git a/drivers/base/memor
ameters.txt.
>>
>> Thanks. :)
> On one other OS, there is a mechanism to dynamically convert pages from
> movable zones into normal zones.
The OS auto does it? Or the user coverts it?
We can convert pages from movable zones into normal zones by the following
interface:
ec
_declare_contiguous(NULL, selected_size, 0, limit);
>> + if (cma_size_cmdline != -1)
>> + dma_declare_contiguous(NULL, selected_size,
>> cma_start_cmdline, limit);
>> + else
>> + dma_declare_contigu
At 11/28/2012 04:28 PM, Jiang Liu Wrote:
> On 2012-11-28 16:29, Wen Congyang wrote:
>> At 11/28/2012 12:08 PM, Jiang Liu Wrote:
>>> On 2012-11-28 11:24, Bob Liu wrote:
>>>> On Tue, Nov 27, 2012 at 8:49 PM, Tang Chen wrote:
>>>>> On 11/27/2012 08:09 PM
At 11/28/2012 05:40 PM, Jianguo Wu Wrote:
> Hi Congyang,
>
> I think vmemmap's pgtable pages should be freed after all entries are
> cleared, I have a patch to do this.
> The code logic is the same as [Patch v4 09/12] memory-hotplug: remove page
> table of x86_64 architecture.
>
> How do you th
rtual device
3. it can work when starting the kernel
Signed-off-by: Wen Congyang
---
Documentation/virtual/kvm/pv_event.txt | 32
arch/ia64/include/asm/kvm_para.h | 14 ++
arch/powerpc/include/asm/kvm_para.h| 14 ++
arch/s390/in
NNING(not RUN_STATE_PAUSED).
Signed-off-by: Wen Congyang
---
block.h |2 ++
qmp.c |2 +-
vl.c|7 ---
3 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/block.h b/block.h
index 2e2be11..c3265c2 100644
--- a/block.h
+++ b/block.h
@@ -339,6 +339,8 @@
Corresponding kvm.git hash: 1d92128f with my patch for kvm
---
linux-headers/asm-s390/kvm.h |2 +-
linux-headers/asm-s390/kvm_para.h |2 +-
linux-headers/asm-x86/kvm.h |1 +
linux-headers/asm-x86/kvm_para.h |9 +
linux-headers/linux/kvm.h |3 +++
lin
The guest will be in this state when it is panicked.
Signed-off-by: Wen Congyang
---
qapi-schema.json |6 +-
qmp.c|3 ++-
vl.c |7 ++-
3 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/qapi-schema.json b/qapi-schema.json
index bd8ad74
This event will be emited when the guest is panicked.
Signed-off-by: Wen Congyang
---
monitor.c |1 +
monitor.h |1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/monitor.c b/monitor.c
index b17b1bb..f74dd2d 100644
--- a/monitor.c
+++ b/monitor.c
@@ -455,6 +455,7
clude it's code into pv_event.c
for such target.
Note: if we emit QEVENT_GUEST_PANICKED only, and the management
application does not receive this event(the management may not
run when the event is emitted), the management won't know the
guest is panicked.
Signed-off-by: Wen Congyang
---
Signed-off-by: Wen Congyang
---
hw/pc_piix.c|6 +-
qemu-config.c |4
qemu-options.hx |3 ++-
3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index 37eca23..10531a8 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_piix.c
@@ -149,6 +149,8
At 08/29/2012 07:56 PM, Sasha Levin Wrote:
> On 08/29/2012 07:18 AM, Wen Congyang wrote:
>> We can know the guest is panicked when the guest runs on xen.
>> But we do not have such feature on kvm.
>>
>> Another purpose of this feature is: management app(for example:
&
The memory might become online by other task, even if you offine it.
>> + * So we check whether the cpu has been onlined or not.
>
> I think you meant "memory", not "cpu".
Yes. I will fix it.
Thanks
Wen Congyang
>
> Actually, "check whether
const char *type)
>> +{
>> +struct firmware_map_entry *entry;
>> +
>> + entry = find_firmware_map_entry(start, end - 1, type);
>> +if (!entry)
>> +return -EINVAL;
>> +
>> +firmware_map_remove_entry(entry)
0
[ 1650.232348] RSP
[ 1650.274029] ---[ end trace adf84c90f3fea3e5 ]---
The reason is that: the cpu's node is not NUMA_NO_NODE, we will call
alloc_pages_exact_node() to alloc memory on the node, but the node
is offlined.
Signed-off-by: Wen Congyang
---
arch/x86/kernel/acpi/boot.c |5 +
1 f
(u64 start, u64 end,
>> return 0;
>> }
>>
>> +/**
>> + * firmware_map_remove_entry() - Does the real work to remove a firmware
>> + * memmap entry.
>> + * @entry: removed entry.
>> + **/
>> +static inline void firmware_map_remove_entry(s
If we don't debug per_cpu maps, the cpu's node is stored in per_cpu variable
numa_node. If node is NUMA_NO_NODE, it means the caller want to clear the
cpu's node. So we should also call set_cpu_numa_node() in this case.
Signed-off-by: Wen Congyang
---
arch/x86/mm/numa.c |
t to fix? The function get_page_bootmem()
may be called to the same page more than once, but I don't find any problem
about current implementation.
Thanks
Wen Congyang
>
>> --- a/mm/memory_hotplug.c
>> +++ b/mm/memory_hotplug.c
>> @@ -95,10 +95,17 @@ static void release_m
ng code from sparse.c triggers this issue, which causes failure
> when removing a hot-added memory device.
Hi, Liu
What is the status of this patch?
I encounter the same problem when removing a hot-added memory device. It
causes the kernel panicked
Thanks
Wen Congyang
> /*
>
At 09/05/2012 07:16 AM, Andrew Morton Wrote:
> On Mon, 03 Sep 2012 13:51:10 +0800
> Wen Congyang wrote:
>
>>>> +static void release_firmware_map_entry(struct kobject *kobj)
>>>> +{
>>>> + struct firmware_map_entry *entry = to_memmap_entry(kobj);
&
Hi, H. Peter Anvin
Do you have time to review this patch?
Thanks
Wen Congyang
At 08/21/2012 04:11 PM, Wen Congyang Wrote:
> Current mem boot option only can work for non efi environment. If the user
> specifies add_efi_memmap, it cannot work for efi environment. In
> the efi enviro
doesn't want
> the offline memory is in *self-refresh* state.
Power saving? Do you need _PSx support?
Thanks
Wen Congyang
>
> Any comments are appreciated.
>
> Thanks,
> Jerry
>
> 2012/9/10 Vasilis Liaskovitis
>
>> Hi,
>>
>> On Mon,
At 09/11/2012 08:52 AM, Minchan Kim Wrote:
> Hello Wen,
>
> On Fri, Sep 07, 2012 at 03:28:22PM +0800, Wen Congyang wrote:
>> At 09/06/2012 10:53 AM, Minchan Kim Wrote:
>>> Normally, MIGRATE_ISOLATE type is used for memory-hotplug.
>>> But it's irony type
At 09/11/2012 10:24 AM, Yasuaki Ishimatsu Wrote:
> Hi Wen,
>
> 2012/09/11 11:15, Wen Congyang wrote:
>> Hi, ishimatsu
>>
>> At 09/05/2012 05:25 PM, we...@cn.fujitsu.com Wrote:
>>> From: Yasuaki Ishimatsu
>>>
>>> If system supports memory h
change_state() to hotremoving memory, I think
this patch can be removed. What do you think?
Thanks
Wen Congyang
>
> CC: David Rientjes
> CC: Jiang Liu
> CC: Len Brown
> CC: Benjamin Herrenschmidt
> CC: Paul Mackerras
> CC: Christoph Lameter
> Cc: Minchan Kim
> C
pages(unsigned long pfn, unsigned long nr_pages)
> {
> @@ -467,13 +495,18 @@ int __ref online_pages(unsigned long pfn, unsigned long
> nr_pages)
> struct memory_notify arg;
>
> lock_memory_hotplug();
> + /*
> + * This doesn't need a
When system resume, I just need to
> enable it again.
>
> Hi Wen,
>
> I am sorry for that I doesn't know the "_PSx support" means. Maybe I
> needn't it.
Hmm, arm doesn't support ACPI, so please ignore it.
Thanks
Wen Congyang
>
> Thanks,
> Jerr
At 09/10/2012 09:52 PM, Vasilis Liaskovitis Wrote:
> Hi,
>
> On Mon, Sep 10, 2012 at 10:01:44AM +0800, Wen Congyang wrote:
>> At 09/10/2012 09:46 AM, Yasuaki Ishimatsu Wrote:
>>> Hi Wen,
>>>
>>> 2012/09/01 5:49, Andrew Morton wrote:
>&
p->info.nodeinfo[nid]->zoneinfo[zone].lruvec.zone
when onlining the node, and we try to access it.
Signed-off-by: Wen Congyang
Reported-by: Tang Chen
---
include/linux/memcontrol.h |7 +++
mm/memcontrol.c| 14 ++
mm/memory_hotplug.c|2 ++
3 files ch
At 09/13/2012 06:06 PM, Kamezawa Hiroyuki Wrote:
> (2012/09/13 16:14), Wen Congyang wrote:
>> root_mem_cgroup->info.nodeinfo is initialized when the system boots.
>> But NODE_DATA(nid) is null if the node is not onlined, so
>> root_mem_cgroup->info.nodeinfo[nid]-
At 09/14/2012 04:59 AM, Johannes Weiner Wrote:
> Hi,
>
> On Thu, Sep 13, 2012 at 03:14:28PM +0800, Wen Congyang wrote:
>> root_mem_cgroup->info.nodeinfo is initialized when the system boots.
>> But NODE_DATA(nid) is null if the node is not onlined, so
>> root
At 09/14/2012 09:36 AM, Hugh Dickins Wrote:
> On Thu, 13 Sep 2012, Johannes Weiner wrote:
>> On Thu, Sep 13, 2012 at 03:14:28PM +0800, Wen Congyang wrote:
>>> root_mem_cgroup->info.nodeinfo is initialized when the system boots.
>>> But NODE_DATA(nid) is null
e lock mem_hotplug_mutex
first.
Thanks
Wen Congyang
>
> [ 201.596363] Offlined Pages 32768
> [ 201.596373] remove from free list 14 1024 148000
> [ 201.596493] remove from free list 140400 1024 148000
> [ 201.596612] remove from free list 140800 1024 148000
>
int **resultp)
> +{
> +gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE;
> +
> +if (PageHighMem(page))
> +gfp_mask |= __GFP_HIGHMEM;
> +
> +return alloc_page(gfp_mask);
alloc_page() will use current task's memory policy. I
At 10/23/2012 03:09 PM, wujianguo Wrote:
> On 2012-10-22 15:11, Wen Congyang wrote:
>> Hi, Wu
>>
>> Sorry for late reply.
>>
>> At 10/09/2012 04:26 PM, wujianguo Wrote:
>>> Hi Congyang,
>>> I think we should also free pages which are used by
1,6 +6000,7 @@ void zone_pcp_reset(struct zone *zone)
> local_irq_restore(flags);
> }
>
> +#ifdef CONFIG_MEMORY_HOTREMOVE
> /*
> * All pages in the range must be isolated before calling this.
> */
This patch looks find to me.
Reviewed-by: Wen Congyang
--
To
At 10/23/2012 06:30 PM, Ni zhan Chen Wrote:
> On 10/23/2012 06:30 PM, we...@cn.fujitsu.com wrote:
>> From: Wen Congyang
>
> The patchset doesn't support kernel memory hot-remove, correct? If the
> answer is yes, you should point out in your patchset changelog.
The an
s.patch
I find a problem introduced by this patch, and the following is the fix:
Do I need to merge them into a single patch?
>From 705b8f7392adba8a36d8e89b5aef77d9a6a9042c Mon Sep 17 00:00:00 2001
From: Wen Congyang
Date: Wed, 24 Oct 2012 14:21:15 +0800
Subject: [PATCH] memory-hotplug: buil
Hi, andrew morton:
This patch has been acked by kosaki motohiro. Is it OK to be merged
into -mm tree?
Thanks
Wen Congyang
At 10/19/2012 02:46 PM, we...@cn.fujitsu.com Wrote:
> From: Wen Congyang
>
> If sparse memory vmemmap is enabled, we can't free the memory to store
> s
At 10/31/2012 07:23 PM, Wen Congyang Wrote:
> The last version is here:
> https://lkml.org/lkml/2012/10/19/56
>
> Note: patch 1-3 are in -mm tree and I don't touch them. The other patches
> except patch6 are also in mm tree. Patch 6 is not touched.
>
> Changes from
f-by: Yasuaki Ishimatsu
Acked-by: David Rientjes
Cc: Jiang Liu
Cc: Minchan Kim
Acked-by: KOSAKI Motohiro
Cc: Wen Congyang
Cc: Greg KH
Signed-off-by: Andrew Morton
---
drivers/base/memory.c | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/base/memory.c
pages, the free pages will continue to decrease.
Wen Congyang (6):
memory-hotplug: auto offline page_cgroup when onlining memory block
failed
memory-hotplug: fix NR_FREE_PAGES mismatch
numa: convert static memory to dynamically allocated memory for per
node device
clear the
device_release(). So if system reuses the node struct, it has a garbage.
CC: David Rientjes
CC: Jiang Liu
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
drivers/base/node.c | 20 +++-
1 file changed
eported-by: Vasilis Liaskovitis
Signed-off-by: Wen Congyang
---
mm/sparse.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/sparse.c b/mm/sparse.c
index fac95f2..0021265 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -638,7 +638,6 @@ static struct page *__kmalloc_section_memma
S in step3. So NR_FREE_PAGES is wrong after offlining pages.
So there is no need to change NR_FREE_PAGES in step3.
This patch also fixs a problem in step2: if the migratetype is
MIGRATE_ISOLATE, we should not add NR_FRR_PAGES when we remove pages from
pcppages.
Signed-off-by: Wen Congyang
Cc: Davi
matsu
Cc: Andi Kleen
Cc: Dave Hansen
Cc: Mel Gorman
Signed-off-by: Wen Congyang
---
include/linux/page-isolation.h | 10 ++
mm/memory-failure.c| 2 +-
mm/memory_hotplug.c| 5 +++--
mm/page_alloc.c| 27 +++
mm/p
: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Christoph Lameter
Cc: Minchan Kim
Cc: KOSAKI Motohiro
Cc: Yasuaki Ishimatsu
Cc: Dave Hansen
Cc: Mel Gorman
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 8 ++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff
igned-off-by: Wen Congyang
---
arch/powerpc/kernel/sysfs.c | 4 ++--
drivers/base/node.c | 38 ++
include/linux/node.h| 2 +-
mm/hugetlb.c| 4 ++--
4 files changed, 27 insertions(+), 21 deletions(-)
diff --git a/arch/powerpc/k
at
we can't hot-remove the memory device on that node, because some memory is
used to store page cgroup. If onlining the memory block is failed, there
is no need to stort page cgroup for this memory. So auto offline
page_cgroup when onlining memory block failed.
Signed-off-by: Wen Congyang
jamin Herrenschmidt
Cc: Paul Mackerras
Cc: Christoph Lameter
Cc: Minchan Kim
Cc: KOSAKI Motohiro
Cc: Yasuaki Ishimatsu
Cc: Dave Hansen
Cc: Mel Gorman
Cc: Jianguo Wu
Signed-off-by: Wen Congyang
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_allo
At 10/31/2012 09:41 PM, Jianguo Wu Wrote:
> On 2012/10/31 19:23, Wen Congyang wrote:
>> NR_FREE_PAGES will be wrong after offlining pages. We add/dec
>> NR_FREE_PAGES like this now:
>>
>> 1. move all pages in buddy system to MIGRATE_ISOLATE, and dec NR_FREE_PAGES
>&
At 11/01/2012 02:29 AM, David Rientjes Wrote:
> On Wed, 31 Oct 2012, Wen Congyang wrote:
>
>> diff --git a/drivers/base/node.c b/drivers/base/node.c
>> index af1a177..5d7731e 100644
>> --- a/drivers/base/node.c
>> +++ b/drivers/base/node.c
>> @@ -614,23 +614,
At 11/01/2012 02:16 AM, David Rientjes Wrote:
> On Wed, 31 Oct 2012, Wen Congyang wrote:
>
>> From: Lai Jiangshan
>>
>> This patch is part3 of the following patchset:
>> https://lkml.org/lkml/2012/10/29/319
>>
>> Part1 is here:
>> https:/
Ishimatsu
Signed-off-by: Wen Congyang
Signed-off-by: Jianguo Wu
Signed-off-by: Jiang Liu
---
arch/x86/include/asm/pgtable_types.h | 1 +
arch/x86/mm/init_64.c| 231 +++
arch/x86/mm/pageattr.c | 47 +++
3 files changed, 257
Ishimatsu
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 101
1 file changed, 55 insertions(+), 46 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index f4fdedd..80fc70c 100644
--- a/mm/memory_hotplug.c
+++ b/mm
: register_page_bootmem_memmap() is not implemented for ia64, ppc, s390,
and sparc.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
arch/ia64/mm/discontig.c | 6
__remove_section() of CONFIG_SPARSEMEM_VMEMMAP is deleted.
Note: vmemmap_kfree() and vmemmap_free_bootmem() are not implemented for ia64,
ppc, s390, and sparc.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Wen
: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
drivers/acpi/acpi_memhotplug.c | 8 +-
include/linux/memory_hotplug.h | 2 +-
mm/memory_hotplug.c| 58 --
3 files changed, 64
ohiro
Signed-off-by: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
drivers/base/memory.c | 6 ++
include/linux/memory_hotplug.h | 1 +
mm/memory_hotplug.c| 47 ++
3 files changed, 54 insertions(+)
diff --git a/drivers/base/memor
: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
mm/memory_hotplug.c | 13 -
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index ca07433..66a79a7 100644
ge, just remove reduntant codes.
Patch9: merge the patch from wujianguo into this patch. flush tlb on all cpu
after the pagetable is changed.
Patch12: new patch, free node_data when a node is offlined
Wen Congyang (6):
memory-hotplug: try to offline the memory twice to avoid dependence
t for s390).
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
arch/ia64/mm/init.c
bootmem.
So the patch makes memory leak. But I think the memory leak size is
very samll. And it does not affect the system.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Wen Congyang
Signed
primary memory block.
2nd iterate: offline primary (i.e. first added) memory block.
This idea is suggested by KOSAKI Motohiro.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-b
Len Brown
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 207
1 file changed, 207 insertions(+)
diff --git a/mm/memory_h
: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
mm/memory_hotplug.c | 20 +++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index d965da3..e281c31 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1320,9 +1320,12
At 11/01/2012 02:21 AM, David Rientjes Wrote:
> On Wed, 31 Oct 2012, Wen Congyang wrote:
>
>> From: Lai Jiangshan
>>
>> is_valid_nodemask() is introduced by 19770b32. but it does not match
>> its comments, because it does not check the zone which > policy_zone.
&
At 11/02/2012 05:36 AM, David Rientjes Wrote:
> On Thu, 1 Nov 2012, Wen Congyang wrote:
>
>>> This doesn't describe why we need the new node state, unfortunately. It
>>
>> 1. Somethimes, we use the node which contains the memory that can be used by
>>ke
device_release()
>
> CC: David Rientjes
> CC: Jiang Liu
> CC: Len Brown
> CC: Benjamin Herrenschmidt
> CC: Paul Mackerras
> CC: Christoph Lameter
> Cc: Minchan Kim
> CC: Andrew Morton
> CC: KOSAKI Motohiro
> CC: Wen Congyang
> Signed-off-by: Yasuaki
add_early/hotplug
[RFC PATCH v2 4/13]
* add release_firmware_map_entry() for freeing firmware_map_entry
[RFC PATCH v2 6/13]
* add release_memory_block() for freeing memory_block
[RFC PATCH v2 11/13]
* fix wrong arguments of free_pages()
Wen Congyang (5):
memory-hotplug: implemen
From: Yasuaki Ishimatsu
There are two ways to create /sys/firmware/memmap/X sysfs:
- firmware_map_add_early
When the system starts, it is calledd from e820_reserve_resources()
- firmware_map_add_hotplug
When the memory is hot plugged, it is called from add_memory()
But these functio
CC: Len Brown
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
drivers/acpi/acpi_memhotplug.c |2 +-
drivers/base/memory.c |9 +++--
ng Liu
CC: Len Brown
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
CC: Vasilis Liaskovitis
Signed-off-by: Wen Congyang
---
drivers/base/memory.c | 31 +++
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
Reviewed-by: Yasuaki Ishimatsu
---
drivers/acpi/acpi_memhotplug.c |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 8957ed9
CC: KOSAKI Motohiro
Signed-off-by: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
drivers/acpi/acpi_memhotplug.c | 42 +--
drivers/base/memory.c | 39 +
include/linux/memory.h |5
include/li
Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
include/linux/mmzone.h | 19 +++
mm/memory_hotplug.c| 13 +
2 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/include/linux/mmzone.h
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
drivers/acpi/scan.c |3 ++-
include/acpi/acpi_bus.h |1 +
2 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/scan.c b
Motohiro
CC: Yasuaki Ishimatsu
Signed-off-by: Wen Congyang
---
drivers/acpi/acpi_memhotplug.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index ed37fc2..755cc31 100644
--- a/drivers/acpi/acpi_memhotplug.c
free
memory which is allocated by bootmem.
CC: David Rientjes
CC: Jiang Liu
CC: Len Brown
CC: Benjamin Herrenschmidt
CC: Paul Mackerras
CC: Christoph Lameter
Cc: Minchan Kim
CC: Andrew Morton
CC: KOSAKI Motohiro
CC: Wen Congyang
Signed-off-by: Yasuaki Ishimatsu
---
drivers
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