Commit 9628ed40 authored Jul 06, 2018 by Dan Williams Committed by Greg Kroah-Hartman Oct 13, 2018

x86/numa_emulation: Fix emulated-to-physical node mapping



[ 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@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/153089328103.27680.14778434392225818887.stgit@dwillia2-desk3.amr.corp.intel.com


Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 64efd66f

arch/x86/mm/numa_emulation.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -60,7 +60,7 @@ 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) {