* [merged] mm-memory_hotplug-pass-in-nid-to-online_pages.patch removed from -mm tree
@ 2020-01-31 23:19 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-01-31 23:19 UTC (permalink / raw)
To: akpm, anshuman.khandual, dan.j.williams, david, gregkh, mhocko,
mm-commits, osalvador, pasha.tatashin, rafael
The patch titled
Subject: mm/memory_hotplug: pass in nid to online_pages()
has been removed from the -mm tree. Its filename was
mm-memory_hotplug-pass-in-nid-to-online_pages.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: David Hildenbrand <david@redhat.com>
Subject: mm/memory_hotplug: pass in nid to online_pages()
Patch series "mm/memory_hotplug: pass in nid to online_pages()".
Simplify onlining code and get rid of find_memory_block(). Pass in the
nid from the memory block we are trying to online directly, instead of
manually looking it up.
This patch (of 2):
No need to lookup the memory block, we can directly pass in the nid.
Link: http://lkml.kernel.org/r/20200113113354.6341-2-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/base/memory.c | 6 +++---
include/linux/memory_hotplug.h | 3 ++-
mm/memory_hotplug.c | 13 ++-----------
3 files changed, 7 insertions(+), 15 deletions(-)
--- a/drivers/base/memory.c~mm-memory_hotplug-pass-in-nid-to-online_pages
+++ a/drivers/base/memory.c
@@ -206,7 +206,7 @@ static bool pages_correctly_probed(unsig
*/
static int
memory_block_action(unsigned long start_section_nr, unsigned long action,
- int online_type)
+ int online_type, int nid)
{
unsigned long start_pfn;
unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
@@ -219,7 +219,7 @@ memory_block_action(unsigned long start_
if (!pages_correctly_probed(start_pfn))
return -EBUSY;
- ret = online_pages(start_pfn, nr_pages, online_type);
+ ret = online_pages(start_pfn, nr_pages, online_type, nid);
break;
case MEM_OFFLINE:
ret = offline_pages(start_pfn, nr_pages);
@@ -245,7 +245,7 @@ static int memory_block_change_state(str
mem->state = MEM_GOING_OFFLINE;
ret = memory_block_action(mem->start_section_nr, to_state,
- mem->online_type);
+ mem->online_type, mem->nid);
mem->state = ret ? from_state_req : to_state;
--- a/include/linux/memory_hotplug.h~mm-memory_hotplug-pass-in-nid-to-online_pages
+++ a/include/linux/memory_hotplug.h
@@ -94,7 +94,8 @@ extern int zone_grow_free_lists(struct z
extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages);
extern int add_one_highpage(struct page *page, int pfn, int bad_ppro);
/* VM interface that may be used by firmware interface */
-extern int online_pages(unsigned long, unsigned long, int);
+extern int online_pages(unsigned long pfn, unsigned long nr_pages,
+ int online_type, int nid);
extern int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn,
unsigned long *valid_start, unsigned long *valid_end);
extern unsigned long __offline_isolated_pages(unsigned long start_pfn,
--- a/mm/memory_hotplug.c~mm-memory_hotplug-pass-in-nid-to-online_pages
+++ a/mm/memory_hotplug.c
@@ -783,27 +783,18 @@ struct zone * zone_for_pfn_range(int onl
return default_zone_for_pfn(nid, start_pfn, nr_pages);
}
-int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_type)
+int __ref online_pages(unsigned long pfn, unsigned long nr_pages,
+ int online_type, int nid)
{
unsigned long flags;
unsigned long onlined_pages = 0;
struct zone *zone;
int need_zonelists_rebuild = 0;
- int nid;
int ret;
struct memory_notify arg;
- struct memory_block *mem;
mem_hotplug_begin();
- /*
- * We can't use pfn_to_nid() because nid might be stored in struct page
- * which is not yet initialized. Instead, we find nid from memory block.
- */
- mem = find_memory_block(__pfn_to_section(pfn));
- nid = mem->nid;
- put_device(&mem->dev);
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2020-01-31 23:19 [merged] mm-memory_hotplug-pass-in-nid-to-online_pages.patch removed from -mm tree akpm
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