The quilt patch titled
Subject: x86/numa: simplify numa_distance allocation
has been removed from the -mm tree. Its filename was
x86-numa-simplify-numa_distance-allocation.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
Subject: x86/numa: simplify numa_distance allocation
Date: Wed, 7 Aug 2024 09:40:54 +0300
Allocation of numa_distance uses memblock_phys_alloc_range() to limit
allocation to be below the last mapped page.
But NUMA initializaition runs after the direct map is populated and there
is also code in setup_arch() that adjusts memblock limit to reflect how
much memory is already mapped in the direct map.
Simplify the allocation of numa_distance and use plain memblock_alloc().
Link: https://lkml.kernel.org/r/20240807064110.1003856-11-rppt@xxxxxxxxxx
Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
Tested-by: Zi Yan <ziy@xxxxxxxxxx> # for x86_64 and arm64
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Tested-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> [arm64 + CXL via QEMU]
Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Cc: Andreas Larsson <andreas@xxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Huacai Chen <chenhuacai@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
Cc: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Rafael J. Wysocki <rafael@xxxxxxxxxx>
Cc: Rob Herring (Arm) <robh@xxxxxxxxxx>
Cc: Samuel Holland <samuel.holland@xxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/numa.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--- a/arch/x86/mm/numa.c~x86-numa-simplify-numa_distance-allocation
+++ a/arch/x86/mm/numa.c
@@ -331,7 +331,6 @@ static int __init numa_alloc_distance(vo
nodemask_t nodes_parsed;
size_t size;
int i, j, cnt = 0;
- u64 phys;
/* size the new table and allocate it */
nodes_parsed = numa_nodes_parsed;
@@ -342,16 +341,14 @@ static int __init numa_alloc_distance(vo
cnt++;
size = cnt * cnt * sizeof(numa_distance[0]);
- phys = memblock_phys_alloc_range(size, PAGE_SIZE, 0,
- PFN_PHYS(max_pfn_mapped));
- if (!phys) {
+ numa_distance = memblock_alloc(size, PAGE_SIZE);
+ if (!numa_distance) {
pr_warn("Warning: can't allocate distance table!\n");
/* don't retry until explicitly reset */
numa_distance = (void *)1LU;
return -ENOMEM;
}
- numa_distance = __va(phys);
numa_distance_cnt = cnt;
/* fill with the default distances */
_
Patches currently in -mm which might be from rppt@xxxxxxxxxx are
