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mm/mmap: use hotplug_memory_notifier() directly 

Commit 76ae847497 ("Documentation: raise minimum supported version of
GCC to 5.1") updated the minimum gcc version to 5.1.  So the problem
mentioned in f02c696800 ("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/20220923033347.3935160-5-liushixin2@huawei.com
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Waiman Long <longman@redhat.com>
Cc: zefan li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liu Shixin 2022-09-23 11:33:43 +08:00 committed by Andrew Morton
parent 946d5f9c9d
commit cddb8d09ff
1 changed files with 1 additions and 5 deletions
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6
mm/mmap.c
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@ -3749,13 +3749,9 @@ static int reserve_mem_notifier(struct notifier_block *nb,
return NOTIFY_OK;
}
static struct notifier_block reserve_mem_nb = {
.notifier_call = reserve_mem_notifier,
};
static int __meminit init_reserve_notifier(void)
{
if (register_hotmemory_notifier(&reserve_mem_nb))
if (hotplug_memory_notifier(reserve_mem_notifier, 0))
pr_err("Failed registering memory add/remove notifier for admin reserve\n");
return 0;