This is a note to let you know that I've just added the patch titled
mm, sparse: pass nid instead of pgdat to sparse_add_one_section()
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mm-sparse-pass-nid-instead-of-pgdat-to-sparse_add_one_section.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Tue 28 Jan 2020 02:32:10 PM CET
From: David Hildenbrand <david@xxxxxxxxxx>
Date: Tue, 28 Jan 2020 10:50:00 +0100
Subject: mm, sparse: pass nid instead of pgdat to sparse_add_one_section()
To: stable@xxxxxxxxxxxxxxx
Cc: linux-mm@xxxxxxxxx, Michal Hocko <mhocko@xxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "Aneesh Kumar K . V" <aneesh.kumar@xxxxxxxxxxxxx>, Baoquan He <bhe@xxxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Oscar Salvador <osalvador@xxxxxxx>, Wei Yang <richard.weiyang@xxxxxxxxx>, David Hildenbrand <david@xxxxxxxxxx>
Message-ID: <20200128095021.8076-4-david@xxxxxxxxxx>
From: Wei Yang <richard.weiyang@xxxxxxxxx>
commit 4e0d2e7ef14d9e1c900dac909db45263822b824f upstream.
Since the information needed in sparse_add_one_section() is node id to
allocate proper memory, it is not necessary to pass its pgdat.
This patch changes the prototype of sparse_add_one_section() to pass node
id directly. This is intended to reduce misleading that
sparse_add_one_section() would touch pgdat.
Link: http://lkml.kernel.org/r/20181204085657.20472-2-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/memory_hotplug.h | 4 ++--
mm/memory_hotplug.c | 2 +-
mm/sparse.c | 8 ++++----
3 files changed, 7 insertions(+), 7 deletions(-)
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -335,8 +335,8 @@ extern void move_pfn_range_to_zone(struc
unsigned long nr_pages, struct vmem_altmap *altmap);
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern bool is_memblock_offlined(struct memory_block *mem);
-extern int sparse_add_one_section(struct pglist_data *pgdat,
- unsigned long start_pfn, struct vmem_altmap *altmap);
+extern int sparse_add_one_section(int nid, unsigned long start_pfn,
+ struct vmem_altmap *altmap);
extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms,
unsigned long map_offset, struct vmem_altmap *altmap);
extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map,
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -255,7 +255,7 @@ static int __meminit __add_section(int n
if (pfn_valid(phys_start_pfn))
return -EEXIST;
- ret = sparse_add_one_section(NODE_DATA(nid), phys_start_pfn, altmap);
+ ret = sparse_add_one_section(nid, phys_start_pfn, altmap);
if (ret < 0)
return ret;
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -661,8 +661,8 @@ static void free_map_bootmem(struct page
* set. If this is <=0, then that means that the passed-in
* map was not consumed and must be freed.
*/
-int __meminit sparse_add_one_section(struct pglist_data *pgdat,
- unsigned long start_pfn, struct vmem_altmap *altmap)
+int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
+ struct vmem_altmap *altmap)
{
unsigned long section_nr = pfn_to_section_nr(start_pfn);
struct mem_section *ms;
@@ -674,11 +674,11 @@ int __meminit sparse_add_one_section(str
* no locking for this, because it does its own
* plus, it does a kmalloc
*/
- ret = sparse_index_init(section_nr, pgdat->node_id);
+ ret = sparse_index_init(section_nr, nid);
if (ret < 0 && ret != -EEXIST)
return ret;
ret = 0;
- memmap = kmalloc_section_memmap(section_nr, pgdat->node_id, altmap);
+ memmap = kmalloc_section_memmap(section_nr, nid, altmap);
if (!memmap)
return -ENOMEM;
usemap = __kmalloc_section_usemap();
Patches currently in stable-queue which might be from david@xxxxxxxxxx are
queue-4.19/mm-memory_hotplug-remove-memory-block-devices-before-arch_remove_memory.patch
queue-4.19/mm-hotplug-kill-is_dev_zone-usage-in-__remove_pages.patch
queue-4.19/mm-memory_hotplug-create-memory-block-devices-after-arch_add_memory.patch
queue-4.19/drivers-base-memory-pass-a-block_id-to-init_memory_block.patch
queue-4.19/drivers-base-memory.c-clean-up-relics-in-function-parameters.patch
queue-4.19/mm-memory_hotplug-update-a-comment-in-unregister_memory.patch
queue-4.19/mm-memory_hotplug-shrink-zones-when-offlining-memory.patch
queue-4.19/mm-memory_hotplug-make-unregister_memory_block_under_nodes-never-fail.patch
queue-4.19/mm-memunmap-don-t-access-uninitialized-memmap-in-memunmap_pages.patch
queue-4.19/mm-memory_hotplug-make-__remove_section-never-fail.patch
queue-4.19/mm-sparse-drop-pgdat_resize_lock-in-sparse_add-remove_one_section.patch
queue-4.19/mm-memory_hotplug-make-unregister_memory_section-never-fail.patch
queue-4.19/mm-memory_hotplug-release-memory-resource-after-arch_remove_memory.patch
queue-4.19/mm-memory_hotplug-add-nid-parameter-to-arch_remove_memory.patch
queue-4.19/powerpc-mm-fix-section-mismatch-warning.patch
queue-4.19/mm-memory_hotplug-allow-arch_remove_memory-without-config_memory_hotremove.patch
queue-4.19/mm-memory_hotplug-make-remove_memory-take-the-device_hotplug_lock.patch
queue-4.19/mm-memory_hotplug-make-__remove_pages-and-arch_remove_memory-never-fail.patch
queue-4.19/mm-memory_hotplug-fix-try_offline_node.patch
queue-4.19/mm-memory_hotplug-remove-zone-parameter-from-sparse_remove_one_section.patch
queue-4.19/drivers-base-memory.c-remove-an-unnecessary-check-on-nr_mem_sections.patch
queue-4.19/drivers-base-node.c-simplify-unregister_memory_block_under_nodes.patch
queue-4.19/s390x-mm-implement-arch_remove_memory.patch
queue-4.19/mm-sparse-pass-nid-instead-of-pgdat-to-sparse_add_one_section.patch
