The patch titled
Subject: x86/numa: numa_{add,remove}_cpu: make cpu parameter unsigned
has been added to the -mm mm-unstable branch. Its filename is
x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
Subject: x86/numa: numa_{add,remove}_cpu: make cpu parameter unsigned
Date: Thu, 1 Aug 2024 09:08:16 +0300
CPU id cannot be negative.
Making it unsigned also aligns with declarations in
include/asm-generic/numa.h used by arm64 and riscv and allows sharing numa
emulation code with these architectures.
Link: https://lkml.kernel.org/r/20240801060826.559858-17-rppt@xxxxxxxxxx
Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Tested-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> [arm64 + CXL via QEMU]
Tested-by: Zi Yan <ziy@xxxxxxxxxx> # for x86_64 and arm64
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: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
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/include/asm/numa.h | 10 +++++-----
arch/x86/mm/numa.c | 10 +++++-----
arch/x86/mm/numa_emulation.c | 10 +++++-----
3 files changed, 15 insertions(+), 15 deletions(-)
--- a/arch/x86/include/asm/numa.h~x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned
+++ a/arch/x86/include/asm/numa.h
@@ -54,20 +54,20 @@ static inline int numa_cpu_node(int cpu)
extern void numa_set_node(int cpu, int node);
extern void numa_clear_node(int cpu);
extern void __init init_cpu_to_node(void);
-extern void numa_add_cpu(int cpu);
-extern void numa_remove_cpu(int cpu);
+extern void numa_add_cpu(unsigned int cpu);
+extern void numa_remove_cpu(unsigned int cpu);
extern void init_gi_nodes(void);
#else /* CONFIG_NUMA */
static inline void numa_set_node(int cpu, int node) { }
static inline void numa_clear_node(int cpu) { }
static inline void init_cpu_to_node(void) { }
-static inline void numa_add_cpu(int cpu) { }
-static inline void numa_remove_cpu(int cpu) { }
+static inline void numa_add_cpu(unsigned int cpu) { }
+static inline void numa_remove_cpu(unsigned int cpu) { }
static inline void init_gi_nodes(void) { }
#endif /* CONFIG_NUMA */
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
-void debug_cpumask_set_cpu(int cpu, int node, bool enable);
+void debug_cpumask_set_cpu(unsigned int cpu, int node, bool enable);
#endif
#ifdef CONFIG_NUMA_EMU
--- a/arch/x86/mm/numa.c~x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned
+++ a/arch/x86/mm/numa.c
@@ -737,12 +737,12 @@ void __init init_cpu_to_node(void)
#ifndef CONFIG_DEBUG_PER_CPU_MAPS
# ifndef CONFIG_NUMA_EMU
-void numa_add_cpu(int cpu)
+void numa_add_cpu(unsigned int cpu)
{
cpumask_set_cpu(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
}
-void numa_remove_cpu(int cpu)
+void numa_remove_cpu(unsigned int cpu)
{
cpumask_clear_cpu(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
}
@@ -780,7 +780,7 @@ int early_cpu_to_node(int cpu)
return per_cpu(x86_cpu_to_node_map, cpu);
}
-void debug_cpumask_set_cpu(int cpu, int node, bool enable)
+void debug_cpumask_set_cpu(unsigned int cpu, int node, bool enable)
{
struct cpumask *mask;
@@ -812,12 +812,12 @@ static void numa_set_cpumask(int cpu, bo
debug_cpumask_set_cpu(cpu, early_cpu_to_node(cpu), enable);
}
-void numa_add_cpu(int cpu)
+void numa_add_cpu(unsigned int cpu)
{
numa_set_cpumask(cpu, true);
}
-void numa_remove_cpu(int cpu)
+void numa_remove_cpu(unsigned int cpu)
{
numa_set_cpumask(cpu, false);
}
--- a/arch/x86/mm/numa_emulation.c~x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned
+++ a/arch/x86/mm/numa_emulation.c
@@ -514,7 +514,7 @@ no_emu:
}
#ifndef CONFIG_DEBUG_PER_CPU_MAPS
-void numa_add_cpu(int cpu)
+void numa_add_cpu(unsigned int cpu)
{
int physnid, nid;
@@ -532,7 +532,7 @@ void numa_add_cpu(int cpu)
cpumask_set_cpu(cpu, node_to_cpumask_map[nid]);
}
-void numa_remove_cpu(int cpu)
+void numa_remove_cpu(unsigned int cpu)
{
int i;
@@ -540,7 +540,7 @@ void numa_remove_cpu(int cpu)
cpumask_clear_cpu(cpu, node_to_cpumask_map[i]);
}
#else /* !CONFIG_DEBUG_PER_CPU_MAPS */
-static void numa_set_cpumask(int cpu, bool enable)
+static void numa_set_cpumask(unsigned int cpu, bool enable)
{
int nid, physnid;
@@ -560,12 +560,12 @@ static void numa_set_cpumask(int cpu, bo
}
}
-void numa_add_cpu(int cpu)
+void numa_add_cpu(unsigned int cpu)
{
numa_set_cpumask(cpu, true);
}
-void numa_remove_cpu(int cpu)
+void numa_remove_cpu(unsigned int cpu)
{
numa_set_cpumask(cpu, false);
}
_
Patches currently in -mm which might be from rppt@xxxxxxxxxx are
mm-move-kernel-numac-to-mm.patch
mips-sgi-ip27-make-node_data-the-same-as-on-all-other-architectures.patch
mips-sgi-ip27-ensure-node_possible_map-only-contains-valid-nodes.patch
mips-sgi-ip27-drop-have_arch_nodedata_extension.patch
mips-loongson64-rename-__node_data-to-node_data.patch
mips-loongson64-drop-have_arch_nodedata_extension.patch
mm-drop-config_have_arch_nodedata_extension.patch
arch-mm-move-definition-of-node_data-to-generic-code.patch
arch-mm-pull-out-allocation-of-node_data-to-generic-code.patch
x86-numa-simplify-numa_distance-allocation.patch
x86-numa-use-get_pfn_range_for_nid-to-verify-that-node-spans-memory.patch
x86-numa-move-fake_node_-defines-to-numa_emu.patch
x86-numa_emu-simplify-allocation-of-phys_dist.patch
x86-numa_emu-split-__apicid_to_node-update-to-a-helper-function.patch
x86-numa_emu-use-a-helper-function-to-get-max_dma32_pfn.patch
x86-numa-numa_addremove_cpu-make-cpu-parameter-unsigned.patch
mm-introduce-numa_memblks.patch
mm-move-numa_distance-and-related-code-from-x86-to-numa_memblks.patch
mm-introduce-numa_emulation.patch
mm-numa_memblks-introduce-numa_memblks_init.patch
mm-numa_memblks-make-several-functions-and-variables-static.patch
mm-numa_memblks-use-memblock_startend_of_dram-when-sanitizing-meminfo.patch
of-numa-return-einval-when-no-numa-node-id-is-found.patch
arch_numa-switch-over-to-numa_memblks.patch
mm-make-range-to-target_node-lookup-facility-a-part-of-numa_memblks.patch
docs-move-numa=fake-description-to-kernel-parameterstxt.patch
