From: Dan Williams <dan.j.williams@intel.com>
To: mingo@kernel.org
Cc: Wei Yang <richard.weiyang@gmail.com>,
David Rientjes <rientjes@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org,
x86@kernel.org
Subject: [PATCH 1/2] x86/numa_emulation: Fix emulated-to-physical node mapping
Date: Sat, 26 May 2018 17:56:52 -0700 [thread overview]
Message-ID: <152738261272.11641.17387529225149633595.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <152738260746.11641.13275998345345705617.stgit@dwillia2-desk3.amr.corp.intel.com>
Without this change the distance table calculation for emulated nodes
may use the wrong numa node and report an incorrect distance.
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: <x86@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
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) {
next prev parent reply other threads:[~2018-05-27 1:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-27 0:56 [PATCH 0/2] x86/numa_emulation: Introduce uniform split capability Dan Williams
2018-05-27 0:56 ` Dan Williams [this message]
2018-05-27 0:56 ` [PATCH 2/2] " Dan Williams
2018-08-16 12:54 ` Wei Yang
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