From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, aou@eecs.berkeley.edu,
benh@kernel.crashing.org, bp@alien8.de, catalin.marinas@arm.com,
cl@linux.com, dave.hansen@linux.intel.com, davem@davemloft.net,
dennis@kernel.org, gregkh@linuxfoundation.org, hpa@zytor.com,
linux-mm@kvack.org, mingo@redhat.com, mm-commits@vger.kernel.org,
mpe@ellerman.id.au, palmer@dabbelt.com, paul.walmsley@sifive.com,
paulus@samba.org, rafael@kernel.org, tglx@linutronix.de,
tj@kernel.org, torvalds@linux-foundation.org,
tsbogend@alpha.franken.de, wangkefeng.wang@huawei.com,
will@kernel.org
Subject: [patch 01/55] mm: percpu: generalize percpu related config
Date: Wed, 19 Jan 2022 18:07:41 -0800 [thread overview]
Message-ID: <20220120020741.L78rI80r9%akpm@linux-foundation.org> (raw)
In-Reply-To: <20220119180714.9e187ce100e4510de3cd9f7d@linux-foundation.org>
From: Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: mm: percpu: generalize percpu related config
Patch series "mm: percpu: Cleanup percpu first chunk function".
When supporting page mapping percpu first chunk allocator on arm64, we
found there are lots of duplicated codes in percpu embed/page first chunk
allocator. This patchset is aimed to cleanup them and should no function
change.
The currently supported status about 'embed' and 'page' in Archs shows
below,
embed: NEED_PER_CPU_PAGE_FIRST_CHUNK
page: NEED_PER_CPU_EMBED_FIRST_CHUNK
embed page
------------------------
arm64 Y Y
mips Y N
powerpc Y Y
riscv Y N
sparc Y Y
x86 Y Y
------------------------
There are two interfaces about percpu first chunk allocator,
extern int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
size_t atom_size,
pcpu_fc_cpu_distance_fn_t cpu_distance_fn,
- pcpu_fc_alloc_fn_t alloc_fn,
- pcpu_fc_free_fn_t free_fn);
+ pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn);
extern int __init pcpu_page_first_chunk(size_t reserved_size,
- pcpu_fc_alloc_fn_t alloc_fn,
- pcpu_fc_free_fn_t free_fn,
- pcpu_fc_populate_pte_fn_t populate_pte_fn);
+ pcpu_fc_cpu_to_node_fn_t cpu_to_nd_fn);
The pcpu_fc_alloc_fn_t/pcpu_fc_free_fn_t is killed, we provide generic
pcpu_fc_alloc() and pcpu_fc_free() function, which are called in the
pcpu_embed/page_first_chunk().
1) For pcpu_embed_first_chunk(), pcpu_fc_cpu_to_node_fn_t is needed to be
provided when archs supported NUMA.
2) For pcpu_page_first_chunk(), the pcpu_fc_populate_pte_fn_t is killed too,
a generic pcpu_populate_pte() which marked '__weak' is provided, if you
need a different function to populate pte on the arch(like x86), please
provide its own implementation.
[1] https://github.com/kevin78/linux.git percpu-cleanup
This patch (of 4):
The HAVE_SETUP_PER_CPU_AREA/NEED_PER_CPU_EMBED_FIRST_CHUNK/
NEED_PER_CPU_PAGE_FIRST_CHUNK/USE_PERCPU_NUMA_NODE_ID configs, which have
duplicate definitions on platforms that subscribe it.
Move them into mm, drop these redundant definitions and instead just
select it on applicable platforms.
Link: https://lkml.kernel.org/r/20211216112359.103822-1-wangkefeng.wang@huawei.com
Link: https://lkml.kernel.org/r/20211216112359.103822-2-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/arm64/Kconfig | 20 ++++----------------
arch/ia64/Kconfig | 9 ++-------
arch/mips/Kconfig | 10 ++--------
arch/powerpc/Kconfig | 17 ++++-------------
arch/riscv/Kconfig | 10 ++--------
arch/sparc/Kconfig | 12 +++---------
arch/x86/Kconfig | 17 ++++-------------
mm/Kconfig | 12 ++++++++++++
8 files changed, 33 insertions(+), 74 deletions(-)
--- a/arch/arm64/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/arch/arm64/Kconfig
@@ -1135,6 +1135,10 @@ config NUMA
select GENERIC_ARCH_NUMA
select ACPI_NUMA if ACPI
select OF_NUMA
+ select HAVE_SETUP_PER_CPU_AREA
+ select NEED_PER_CPU_EMBED_FIRST_CHUNK
+ select NEED_PER_CPU_PAGE_FIRST_CHUNK
+ select USE_PERCPU_NUMA_NODE_ID
help
Enable NUMA (Non-Uniform Memory Access) support.
@@ -1151,22 +1155,6 @@ config NODES_SHIFT
Specify the maximum number of NUMA Nodes available on the target
system. Increases memory reserved to accommodate various tables.
-config USE_PERCPU_NUMA_NODE_ID
- def_bool y
- depends on NUMA
-
-config HAVE_SETUP_PER_CPU_AREA
- def_bool y
- depends on NUMA
-
-config NEED_PER_CPU_EMBED_FIRST_CHUNK
- def_bool y
- depends on NUMA
-
-config NEED_PER_CPU_PAGE_FIRST_CHUNK
- def_bool y
- depends on NUMA
-
source "kernel/Kconfig.hz"
config ARCH_SPARSEMEM_ENABLE
--- a/arch/ia64/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/arch/ia64/Kconfig
@@ -32,6 +32,7 @@ config IA64
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
select HAVE_FUNCTION_TRACER
+ select HAVE_SETUP_PER_CPU_AREA
select TTY
select HAVE_ARCH_TRACEHOOK
select HAVE_VIRT_CPU_ACCOUNTING
@@ -88,9 +89,6 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
-config HAVE_SETUP_PER_CPU_AREA
- def_bool y
-
config DMI
bool
default y
@@ -292,6 +290,7 @@ config NUMA
bool "NUMA support"
depends on !FLATMEM
select SMP
+ select USE_PERCPU_NUMA_NODE_ID
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
@@ -311,10 +310,6 @@ config HAVE_ARCH_NODEDATA_EXTENSION
def_bool y
depends on NUMA
-config USE_PERCPU_NUMA_NODE_ID
- def_bool y
- depends on NUMA
-
config HAVE_MEMORYLESS_NODES
def_bool NUMA
--- a/arch/mips/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/arch/mips/Kconfig
@@ -2666,6 +2666,8 @@ config NUMA
bool "NUMA Support"
depends on SYS_SUPPORTS_NUMA
select SMP
+ select HAVE_SETUP_PER_CPU_AREA
+ select NEED_PER_CPU_EMBED_FIRST_CHUNK
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option improves performance on systems with more
@@ -2676,14 +2678,6 @@ config NUMA
config SYS_SUPPORTS_NUMA
bool
-config HAVE_SETUP_PER_CPU_AREA
- def_bool y
- depends on NUMA
-
-config NEED_PER_CPU_EMBED_FIRST_CHUNK
- def_bool y
- depends on NUMA
-
config RELOCATABLE
bool "Relocatable kernel"
depends on SYS_SUPPORTS_RELOCATABLE
--- a/arch/powerpc/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/arch/powerpc/Kconfig
@@ -55,15 +55,6 @@ config ARCH_MMAP_RND_COMPAT_BITS_MIN
default 9 if PPC_16K_PAGES # 9 = 23 (8MB) - 14 (16K)
default 11 # 11 = 23 (8MB) - 12 (4K)
-config HAVE_SETUP_PER_CPU_AREA
- def_bool PPC64
-
-config NEED_PER_CPU_EMBED_FIRST_CHUNK
- def_bool y if PPC64
-
-config NEED_PER_CPU_PAGE_FIRST_CHUNK
- def_bool y if PPC64
-
config NR_IRQS
int "Number of virtual interrupt numbers"
range 32 1048576
@@ -240,6 +231,7 @@ config PPC
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE
select HAVE_RSEQ
+ select HAVE_SETUP_PER_CPU_AREA if PPC64
select HAVE_SOFTIRQ_ON_OWN_STACK
select HAVE_STACKPROTECTOR if PPC32 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r2)
select HAVE_STACKPROTECTOR if PPC64 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r13)
@@ -254,6 +246,8 @@ config PPC
select MMU_GATHER_RCU_TABLE_FREE
select MODULES_USE_ELF_RELA
select NEED_DMA_MAP_STATE if PPC64 || NOT_COHERENT_CACHE
+ select NEED_PER_CPU_EMBED_FIRST_CHUNK if PPC64
+ select NEED_PER_CPU_PAGE_FIRST_CHUNK if PPC64
select NEED_SG_DMA_LENGTH
select OF
select OF_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE
@@ -659,6 +653,7 @@ config NUMA
bool "NUMA Memory Allocation and Scheduler Support"
depends on PPC64 && SMP
default y if PPC_PSERIES || PPC_POWERNV
+ select USE_PERCPU_NUMA_NODE_ID
help
Enable NUMA (Non-Uniform Memory Access) support.
@@ -672,10 +667,6 @@ config NODES_SHIFT
default "4"
depends on NUMA
-config USE_PERCPU_NUMA_NODE_ID
- def_bool y
- depends on NUMA
-
config HAVE_MEMORYLESS_NODES
def_bool y
depends on NUMA
--- a/arch/riscv/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/arch/riscv/Kconfig
@@ -334,6 +334,8 @@ config NUMA
select GENERIC_ARCH_NUMA
select OF_NUMA
select ARCH_SUPPORTS_NUMA_BALANCING
+ select USE_PERCPU_NUMA_NODE_ID
+ select NEED_PER_CPU_EMBED_FIRST_CHUNK
help
Enable NUMA (Non-Uniform Memory Access) support.
@@ -349,14 +351,6 @@ config NODES_SHIFT
Specify the maximum number of NUMA Nodes available on the target
system. Increases memory reserved to accommodate various tables.
-config USE_PERCPU_NUMA_NODE_ID
- def_bool y
- depends on NUMA
-
-config NEED_PER_CPU_EMBED_FIRST_CHUNK
- def_bool y
- depends on NUMA
-
config RISCV_ISA_C
bool "Emit compressed instructions when building Linux"
default y
--- a/arch/sparc/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/arch/sparc/Kconfig
@@ -97,6 +97,9 @@ config SPARC64
select PCI_DOMAINS if PCI
select ARCH_HAS_GIGANTIC_PAGE
select HAVE_SOFTIRQ_ON_OWN_STACK
+ select HAVE_SETUP_PER_CPU_AREA
+ select NEED_PER_CPU_EMBED_FIRST_CHUNK
+ select NEED_PER_CPU_PAGE_FIRST_CHUNK
config ARCH_PROC_KCORE_TEXT
def_bool y
@@ -123,15 +126,6 @@ config AUDIT_ARCH
bool
default y
-config HAVE_SETUP_PER_CPU_AREA
- def_bool y if SPARC64
-
-config NEED_PER_CPU_EMBED_FIRST_CHUNK
- def_bool y if SPARC64
-
-config NEED_PER_CPU_PAGE_FIRST_CHUNK
- def_bool y if SPARC64
-
config MMU
bool
default y
--- a/arch/x86/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/arch/x86/Kconfig
@@ -240,6 +240,7 @@ config X86
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE if X86_64 && (UNWINDER_FRAME_POINTER || UNWINDER_ORC) && STACK_VALIDATION
select HAVE_FUNCTION_ARG_ACCESS_API
+ select HAVE_SETUP_PER_CPU_AREA
select HAVE_SOFTIRQ_ON_OWN_STACK
select HAVE_STACKPROTECTOR if CC_HAS_SANE_STACKPROTECTOR
select HAVE_STACK_VALIDATION if X86_64
@@ -253,6 +254,8 @@ config X86
select HAVE_GENERIC_VDSO
select HOTPLUG_SMT if SMP
select IRQ_FORCED_THREADING
+ select NEED_PER_CPU_EMBED_FIRST_CHUNK
+ select NEED_PER_CPU_PAGE_FIRST_CHUNK
select NEED_SG_DMA_LENGTH
select PCI_DOMAINS if PCI
select PCI_LOCKLESS_CONFIG if PCI
@@ -332,15 +335,6 @@ config ARCH_HAS_CPU_RELAX
config ARCH_HAS_FILTER_PGPROT
def_bool y
-config HAVE_SETUP_PER_CPU_AREA
- def_bool y
-
-config NEED_PER_CPU_EMBED_FIRST_CHUNK
- def_bool y
-
-config NEED_PER_CPU_PAGE_FIRST_CHUNK
- def_bool y
-
config ARCH_HIBERNATION_POSSIBLE
def_bool y
@@ -1558,6 +1552,7 @@ config NUMA
depends on SMP
depends on X86_64 || (X86_32 && HIGHMEM64G && X86_BIGSMP)
default y if X86_BIGSMP
+ select USE_PERCPU_NUMA_NODE_ID
help
Enable NUMA (Non-Uniform Memory Access) support.
@@ -2432,10 +2427,6 @@ config ARCH_HAS_ADD_PAGES
config ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
def_bool y
-config USE_PERCPU_NUMA_NODE_ID
- def_bool y
- depends on NUMA
-
menu "Power management and ACPI options"
config ARCH_HIBERNATION_HEADER
--- a/mm/Kconfig~mm-percpu-generalize-percpu-related-config
+++ a/mm/Kconfig
@@ -432,6 +432,18 @@ config NEED_PER_CPU_KM
bool
default y
+config NEED_PER_CPU_EMBED_FIRST_CHUNK
+ bool
+
+config NEED_PER_CPU_PAGE_FIRST_CHUNK
+ bool
+
+config USE_PERCPU_NUMA_NODE_ID
+ bool
+
+config HAVE_SETUP_PER_CPU_AREA
+ bool
+
config CLEANCACHE
bool "Enable cleancache driver to cache clean pages if tmem is present"
help
_
next prev parent reply other threads:[~2022-01-20 2:07 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-20 2:07 incoming Andrew Morton
2022-01-20 2:07 ` Andrew Morton [this message]
2022-01-20 2:07 ` [patch 02/55] mm: percpu: add pcpu_fc_cpu_to_node_fn_t typedef Andrew Morton
2022-01-20 2:07 ` [patch 03/55] mm: percpu: add generic pcpu_fc_alloc/free funciton Andrew Morton
2022-01-20 2:07 ` [patch 04/55] mm: percpu: add generic pcpu_populate_pte() function Andrew Morton
2022-01-20 2:07 ` [patch 05/55] proc/vmcore: don't fake reading zeroes on surprise vmcore_cb unregistration Andrew Morton
2022-01-20 2:08 ` [patch 06/55] proc: make the proc_create[_data]() stubs static inlines Andrew Morton
2022-01-20 2:08 ` [patch 07/55] proc: convert the return type of proc_fd_access_allowed() to be boolean Andrew Morton
2022-01-20 2:08 ` [patch 08/55] sysctl: fix duplicate path separator in printed entries Andrew Morton
2022-01-20 2:08 ` [patch 09/55] sysctl: remove redundant ret assignment Andrew Morton
2022-01-20 2:08 ` [patch 10/55] include/linux/unaligned: replace kernel.h with the necessary inclusions Andrew Morton
2022-01-20 2:08 ` [patch 11/55] kernel.h: include a note to discourage people from including it in headers Andrew Morton
2022-01-20 2:08 ` [patch 12/55] fs/exec: replace strlcpy with strscpy_pad in __set_task_comm Andrew Morton
2022-01-20 2:08 ` [patch 13/55] fs/exec: replace strncpy with strscpy_pad in __get_task_comm Andrew Morton
2022-01-20 2:08 ` [patch 14/55] drivers/infiniband: replace open-coded string copy with get_task_comm Andrew Morton
2022-01-20 2:08 ` [patch 15/55] fs/binfmt_elf: " Andrew Morton
2022-01-20 2:08 ` [patch 16/55] samples/bpf/test_overhead_kprobe_kern: replace bpf_probe_read_kernel with bpf_probe_read_kernel_str to get task comm Andrew Morton
2022-01-20 2:08 ` [patch 17/55] tools/bpf/bpftool/skeleton: " Andrew Morton
2022-01-20 2:08 ` [patch 18/55] tools/testing/selftests/bpf: replace open-coded 16 with TASK_COMM_LEN Andrew Morton
2022-01-20 2:08 ` [patch 19/55] kthread: dynamically allocate memory to store kthread's full name Andrew Morton
2022-01-20 2:08 ` [patch 20/55] kernel/sys.c: only take tasklist_lock for get/setpriority(PRIO_PGRP) Andrew Morton
2022-01-20 2:08 ` [patch 21/55] get_maintainer: don't remind about no git repo when --nogit is used Andrew Morton
2022-01-20 2:08 ` [patch 22/55] kstrtox: uninline everything Andrew Morton
2022-01-20 2:08 ` [patch 23/55] list: introduce list_is_head() helper and re-use it in list.h Andrew Morton
2022-01-20 2:08 ` [patch 24/55] lib/list_debug.c: print more list debugging context in __list_del_entry_valid() Andrew Morton
2022-01-20 2:09 ` [patch 25/55] hash.h: remove unused define directive Andrew Morton
2022-01-20 2:09 ` [patch 26/55] test_hash.c: split test_int_hash into arch-specific functions Andrew Morton
2022-01-20 2:09 ` [patch 27/55] test_hash.c: split test_hash_init Andrew Morton
2022-01-20 2:09 ` [patch 28/55] lib/Kconfig.debug: properly split hash test kernel entries Andrew Morton
2022-01-20 2:09 ` [patch 29/55] test_hash.c: refactor into kunit Andrew Morton
2022-01-20 2:09 ` [patch 30/55] kunit: replace kernel.h with the necessary inclusions Andrew Morton
2022-01-20 2:09 ` [patch 31/55] uuid: discourage people from using UAPI header in new code Andrew Morton
2022-01-20 2:09 ` [patch 32/55] uuid: remove licence boilerplate text from the header Andrew Morton
2022-01-20 2:09 ` [patch 33/55] lib/test_meminit: destroy cache in kmem_cache_alloc_bulk() test Andrew Morton
2022-01-20 2:09 ` [patch 34/55] checkpatch: relax regexp for COMMIT_LOG_LONG_LINE Andrew Morton
2022-01-20 2:09 ` [patch 35/55] checkpatch: improve Kconfig help test Andrew Morton
2022-01-20 2:09 ` [patch 36/55] const_structs.checkpatch: add frequently used ops structs Andrew Morton
2022-01-20 2:09 ` [patch 37/55] fs/binfmt_elf: use PT_LOAD p_align values for static PIE Andrew Morton
2022-01-20 2:09 ` [patch 38/55] nilfs2: remove redundant pointer sbufs Andrew Morton
2022-01-20 2:09 ` [patch 39/55] hfsplus: use struct_group_attr() for memcpy() region Andrew Morton
2022-01-20 2:09 ` [patch 40/55] FAT: use io_schedule_timeout() instead of congestion_wait() Andrew Morton
2022-01-20 2:09 ` [patch 41/55] fs/adfs: remove unneeded variable make code cleaner Andrew Morton
2022-01-20 2:09 ` [patch 42/55] panic: use error_report_end tracepoint on warnings Andrew Morton
2022-01-20 2:09 ` [patch 43/55] panic: remove oops_id Andrew Morton
2022-01-20 2:10 ` [patch 44/55] delayacct: support swapin delay accounting for swapping without blkio Andrew Morton
2022-01-20 2:10 ` [patch 45/55] delayacct: fix incomplete disable operation when switch enable to disable Andrew Morton
2022-01-20 2:10 ` [patch 46/55] delayacct: cleanup flags in struct task_delay_info and functions use it Andrew Morton
2022-01-20 2:10 ` [patch 47/55] Documentation/accounting/delay-accounting.rst: add thrashing page cache and direct compact Andrew Morton
2022-01-20 2:10 ` [patch 48/55] delayacct: track delays from memory compact Andrew Morton
2022-01-20 2:10 ` [patch 49/55] configs: introduce debug.config for CI-like setup Andrew Morton
2022-01-20 2:10 ` [patch 50/55] arch/Kconfig: split PAGE_SIZE_LESS_THAN_256KB from PAGE_SIZE_LESS_THAN_64KB Andrew Morton
2022-01-20 2:10 ` [patch 51/55] btrfs: use generic Kconfig option for 256kB page size limit Andrew Morton
2022-01-20 2:10 ` [patch 52/55] lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB Andrew Morton
2022-01-20 2:10 ` [patch 53/55] kcov: fix generic Kconfig dependencies if ARCH_WANTS_NO_INSTR Andrew Morton
2022-01-20 2:10 ` [patch 54/55] ubsan: remove CONFIG_UBSAN_OBJECT_SIZE Andrew Morton
2022-01-20 2:10 ` [patch 55/55] lib: remove redundant assignment to variable ret Andrew Morton
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