The patch titled
Subject: memory-hotplug: remove page table of x86_64 architecture
has been removed from the -mm tree. Its filename was
memory-hotplug-remove-page-table-of-x86_64-architecture.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Subject: memory-hotplug: remove page table of x86_64 architecture
Search a page table about the removed memory, and clear page table for
x86_64 architecture.
[akpm@xxxxxxxxxxxxxxxxxxxx: make kernel_physical_mapping_remove() static]
Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx>
Signed-off-by: Jianguo Wu <wujianguo@xxxxxxxxxx>
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Signed-off-by: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Cc: Wu Jianguo <wujianguo@xxxxxxxxxx>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/init_64.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff -puN arch/x86/mm/init_64.c~memory-hotplug-remove-page-table-of-x86_64-architecture arch/x86/mm/init_64.c
--- a/arch/x86/mm/init_64.c~memory-hotplug-remove-page-table-of-x86_64-architecture
+++ a/arch/x86/mm/init_64.c
@@ -1011,6 +1011,15 @@ remove_pagetable(unsigned long start, un
flush_tlb_all();
}
+static void __meminit
+kernel_physical_mapping_remove(unsigned long start, unsigned long end)
+{
+ start = (unsigned long)__va(start);
+ end = (unsigned long)__va(end);
+
+ remove_pagetable(start, end, true);
+}
+
#ifdef CONFIG_MEMORY_HOTREMOVE
int __ref arch_remove_memory(u64 start, u64 size)
{
@@ -1020,6 +1029,7 @@ int __ref arch_remove_memory(u64 start,
int ret;
zone = page_zone(pfn_to_page(start_pfn));
+ kernel_physical_mapping_remove(start, start + size);
ret = __remove_pages(zone, start_pfn, nr_pages);
WARN_ON_ONCE(ret);
_
Patches currently in -mm which might be from tangchen@xxxxxxxxxxxxxx are
origin.patch
linux-next.patch
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