This is a note to let you know that I've just added the patch titled
x86/numa_emulation: Fix emulated-to-physical node mapping
to the 4.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-numa_emulation-fix-emulated-to-physical-node-mapping.patch
and it can be found in the queue-4.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sat Sep 29 04:24:28 PDT 2018
From: Dan Williams <dan.j.williams@xxxxxxxxx>
Date: Fri, 6 Jul 2018 09:08:01 -0700
Subject: x86/numa_emulation: Fix emulated-to-physical node mapping
From: Dan Williams <dan.j.williams@xxxxxxxxx>
[ Upstream commit 3b6c62f363a19ce82bf378187ab97c9dc01e3927 ]
Without this change the distance table calculation for emulated nodes
may use the wrong numa node and report an incorrect distance.
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
Link: http://lkml.kernel.org/r/153089328103.27680.14778434392225818887.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/numa_emulation.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -61,7 +61,7 @@ static int __init emu_setup_memblk(struc
eb->nid = nid;
if (emu_nid_to_phys[nid] == NUMA_NO_NODE)
- emu_nid_to_phys[nid] = nid;
+ emu_nid_to_phys[nid] = pb->nid;
pb->start += size;
if (pb->start >= pb->end) {
Patches currently in stable-queue which might be from dan.j.williams@xxxxxxxxx are
queue-4.18/x86-numa_emulation-fix-emulated-to-physical-node-mapping.patch
