The patch titled
Subject: mm/slub.c: use hotplug_memory_notifier() directly
has been added to the -mm mm-unstable branch. Its filename is
mm-slubc-use-hotplug_memory_notifier-directly.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-slubc-use-hotplug_memory_notifier-directly.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Liu Shixin <liushixin2@xxxxxxxxxx>
Subject: mm/slub.c: use hotplug_memory_notifier() directly
Date: Fri, 23 Sep 2022 11:33:42 +0800
Commit 76ae847497bc52 ("Documentation: raise minimum supported version of
GCC to 5.1") updated the minimum gcc version to 5.1. So the problem
mentioned in f02c69680088 ("include/linux/memory.h: implement
register_hotmemory_notifier()") no longer exist. So we can now switch to
use hotplug_memory_notifier() directly rather than
register_hotmemory_notifier().
Link: https://lkml.kernel.org/r/20220923033347.3935160-4-liushixin2@xxxxxxxxxx
Signed-off-by: Liu Shixin <liushixin2@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Waiman Long <longman@xxxxxxxxxx>
Cc: zefan li <lizefan.x@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slub.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
--- a/mm/slub.c~mm-slubc-use-hotplug_memory_notifier-directly
+++ a/mm/slub.c
@@ -4771,11 +4771,6 @@ static int slab_memory_callback(struct n
return ret;
}
-static struct notifier_block slab_memory_callback_nb = {
- .notifier_call = slab_memory_callback,
- .priority = SLAB_CALLBACK_PRI,
-};
-
/********************************************************************
* Basic setup of slabs
*******************************************************************/
@@ -4841,7 +4836,7 @@ void __init kmem_cache_init(void)
create_boot_cache(kmem_cache_node, "kmem_cache_node",
sizeof(struct kmem_cache_node), SLAB_HWCACHE_ALIGN, 0, 0);
- register_hotmemory_notifier(&slab_memory_callback_nb);
+ hotplug_memory_notifier(slab_memory_callback, SLAB_CALLBACK_PRI);
/* Able to allocate the per node structures */
slab_state = PARTIAL;
_
Patches currently in -mm which might be from liushixin2@xxxxxxxxxx are
cgroup-cpuset-use-hotplug_memory_notifier-directly.patch
fs-proc-kcorec-use-hotplug_memory_notifier-directly.patch
mm-slubc-use-hotplug_memory_notifier-directly.patch
mm-mmap-use-hotplug_memory_notifier-directly.patch
mm-mm_initc-use-hotplug_memory_notifier-directly.patch
acpi-hmat-use-hotplug_memory_notifier-directly.patch
memory-remove-unused-register_hotmemory_notifier.patch
memory-move-hotplug-memory-notifier-priority-to-same-file-for-easy-sorting.patch
