Commit-ID: 7edff025d00d663bacba4e2fa00ed8bbbf370107
Gitweb: https://git.kernel.org/tip/7edff025d00d663bacba4e2fa00ed8bbbf370107
Author: Dan Williams <dan.j.williams@xxxxxxxxx>
AuthorDate: Sat, 26 May 2018 17:56:52 -0700
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Thu, 21 Jun 2018 15:56:47 +0200
x86/numa_emulation: Fix emulated-to-physical node mapping
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: https://lore.kernel.org/lkml/152738261272.11641.17387529225149633595.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/mm/numa_emulation.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
index 34a2a3bfde9c..22cbad56acab 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -61,7 +61,7 @@ static int __init emu_setup_memblk(struct numa_meminfo *ei,
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) {
--
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