The patch titled
memcg: bugfix for memory hotplug
has been added to the -mm tree. Its filename is
memcg-bugfix-for-memory-hotplug.patch
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------------------------------------------------------
Subject: memcg: bugfix for memory hotplug
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
The start pfn calculation in page_cgroup's memory hotplug notifier chain
is wrong.
Tested-by: Badari Pulavarty <pbadari@xxxxxxxxxx>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_cgroup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/page_cgroup.c~memcg-bugfix-for-memory-hotplug mm/page_cgroup.c
--- a/mm/page_cgroup.c~memcg-bugfix-for-memory-hotplug
+++ a/mm/page_cgroup.c
@@ -165,7 +165,7 @@ int online_page_cgroup(unsigned long sta
unsigned long start, end, pfn;
int fail = 0;
- start = start_pfn & (PAGES_PER_SECTION - 1);
+ start = start_pfn & ~(PAGES_PER_SECTION - 1);
end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
for (pfn = start; !fail && pfn < end; pfn += PAGES_PER_SECTION) {
@@ -188,7 +188,7 @@ int offline_page_cgroup(unsigned long st
{
unsigned long start, end, pfn;
- start = start_pfn & (PAGES_PER_SECTION - 1);
+ start = start_pfn & ~(PAGES_PER_SECTION - 1);
end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION)
_
Patches currently in -mm which might be from kamezawa.hiroyu@xxxxxxxxxxxxxx are
memcg-bugfix-for-memory-hotplug.patch
cgroups-make-cgroup-config-a-submenu.patch
memcg-introduce-charge-commit-cancel-style-of-functions.patch
memcg-introduce-charge-commit-cancel-style-of-functions-fix.patch
memcg-fix-gfp_mask-of-callers-of-charge.patch
memcg-simple-migration-handling.patch
memcg-do-not-recalculate-section-unnecessarily-in-init_section_page_cgroup.patch
memcg-move-all-acccounts-to-parent-at-rmdir.patch
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