From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, bcain@codeaurora.org, bhe@redhat.com,
catalin.marinas@arm.com, corbet@lwn.net, dalias@libc.org,
davem@davemloft.net, deller@gmx.de, geert@linux-m68k.org,
gerg@linux-m68k.org, green.hu@gmail.com, guoren@kernel.org,
gxt@pku.edu.cn, heiko.carstens@de.ibm.com,
hoan@os.amperecomputing.com,
James.Bottomley@HansenPartnership.com, jcmvbkbc@gmail.com,
ley.foon.tan@intel.com, linux-mm@kvack.org,
linux@armlinux.org.uk, mattst88@gmail.com, mhocko@kernel.org,
mm-commits@vger.kernel.org, monstr@monstr.eu, mpe@ellerman.id.au,
msalter@redhat.com, nickhu@andestech.com,
paul.walmsley@sifive.com, richard@nod.at, rppt@linux.ibm.com,
shorne@gmail.com, tony.luck@intel.com,
torvalds@linux-foundation.org, tsbogend@alpha.franken.de,
vgupta@synopsys.com, ysato@users.sourceforge.jp
Subject: [patch 013/131] mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option
Date: Wed, 03 Jun 2020 15:57:02 -0700 [thread overview]
Message-ID: <20200603225702.LCO8CBqo5%akpm@linux-foundation.org> (raw)
In-Reply-To: <20200603155549.e041363450869eaae4c7f05b@linux-foundation.org>
From: Mike Rapoport <rppt@linux.ibm.com>
Subject: mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option
CONFIG_HAVE_MEMBLOCK_NODE_MAP is used to differentiate initialization of
nodes and zones structures between the systems that have region to node
mapping in memblock and those that don't.
Currently all the NUMA architectures enable this option and for the
non-NUMA systems we can presume that all the memory belongs to node 0 and
therefore the compile time configuration option is not required.
The remaining few architectures that use DISCONTIGMEM without NUMA are
easily updated to use memblock_add_node() instead of memblock_add() and
thus have proper correspondence of memblock regions to NUMA nodes.
Still, free_area_init_node() must have a backward compatible version
because its semantics with and without CONFIG_HAVE_MEMBLOCK_NODE_MAP is
different. Once all the architectures will use the new semantics, the
entire compatibility layer can be dropped.
To avoid addition of extra run time memory to store node id for
architectures that keep memblock but have only a single node, the node id
field of the memblock_region is guarded by CONFIG_NEED_MULTIPLE_NODES and
the corresponding accessors presume that in those cases it is always 0.
Link: http://lkml.kernel.org/r/20200412194859.12663-4-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Hoan Tran <hoan@os.amperecomputing.com> [arm64]
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Baoquan He <bhe@redhat.com>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
Documentation/features/vm/numa-memblock/arch-support.txt | 34 ---
arch/alpha/mm/numa.c | 4
arch/arm64/Kconfig | 1
arch/ia64/Kconfig | 1
arch/m68k/mm/motorola.c | 4
arch/microblaze/Kconfig | 1
arch/mips/Kconfig | 1
arch/powerpc/Kconfig | 1
arch/riscv/Kconfig | 1
arch/s390/Kconfig | 1
arch/sh/Kconfig | 1
arch/sparc/Kconfig | 1
arch/x86/Kconfig | 1
include/linux/memblock.h | 8
include/linux/mm.h | 12 -
include/linux/mmzone.h | 2
mm/Kconfig | 3
mm/memblock.c | 11 -
mm/memory_hotplug.c | 4
mm/page_alloc.c | 101 +++++-----
20 files changed, 74 insertions(+), 119 deletions(-)
--- a/arch/alpha/mm/numa.c~mm-remove-config_have_memblock_node_map-option
+++ a/arch/alpha/mm/numa.c
@@ -144,8 +144,8 @@ setup_memory_node(int nid, void *kernel_
if (!nid && (node_max_pfn < end_kernel_pfn || node_min_pfn > start_kernel_pfn))
panic("kernel loaded out of ram");
- memblock_add(PFN_PHYS(node_min_pfn),
- (node_max_pfn - node_min_pfn) << PAGE_SHIFT);
+ memblock_add_node(PFN_PHYS(node_min_pfn),
+ (node_max_pfn - node_min_pfn) << PAGE_SHIFT, nid);
/* Zone start phys-addr must be 2^(MAX_ORDER-1) aligned.
Note that we round this down, not up - node memory
--- a/arch/arm64/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/arm64/Kconfig
@@ -162,7 +162,6 @@ config ARM64
select HAVE_GCC_PLUGINS
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IRQ_TIME_ACCOUNTING
- select HAVE_MEMBLOCK_NODE_MAP if NUMA
select HAVE_NMI
select HAVE_PATA_PLATFORM
select HAVE_PERF_EVENTS
--- a/arch/ia64/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/ia64/Kconfig
@@ -31,7 +31,6 @@ config IA64
select HAVE_FUNCTION_TRACER
select TTY
select HAVE_ARCH_TRACEHOOK
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_VIRT_CPU_ACCOUNTING
select DMA_NONCOHERENT_MMAP
select ARCH_HAS_SYNC_DMA_FOR_CPU
--- a/arch/m68k/mm/motorola.c~mm-remove-config_have_memblock_node_map-option
+++ a/arch/m68k/mm/motorola.c
@@ -386,7 +386,7 @@ void __init paging_init(void)
min_addr = m68k_memory[0].addr;
max_addr = min_addr + m68k_memory[0].size;
- memblock_add(m68k_memory[0].addr, m68k_memory[0].size);
+ memblock_add_node(m68k_memory[0].addr, m68k_memory[0].size, 0);
for (i = 1; i < m68k_num_memory;) {
if (m68k_memory[i].addr < min_addr) {
printk("Ignoring memory chunk at 0x%lx:0x%lx before the first chunk\n",
@@ -397,7 +397,7 @@ void __init paging_init(void)
(m68k_num_memory - i) * sizeof(struct m68k_mem_info));
continue;
}
- memblock_add(m68k_memory[i].addr, m68k_memory[i].size);
+ memblock_add_node(m68k_memory[i].addr, m68k_memory[i].size, i);
addr = m68k_memory[i].addr + m68k_memory[i].size;
if (addr > max_addr)
max_addr = addr;
--- a/arch/microblaze/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/microblaze/Kconfig
@@ -32,7 +32,6 @@ config MICROBLAZE
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_OPROFILE
select HAVE_PCI
select IRQ_DOMAIN
--- a/arch/mips/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/mips/Kconfig
@@ -72,7 +72,6 @@ config MIPS
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
select HAVE_OPROFILE
--- a/arch/powerpc/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/powerpc/Kconfig
@@ -211,7 +211,6 @@ config PPC
select HAVE_KRETPROBES
select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S)
select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S)
--- a/arch/riscv/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/riscv/Kconfig
@@ -32,7 +32,6 @@ config RISCV
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ASM_MODVERSIONS
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_DMA_CONTIGUOUS if MMU
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_PERF_EVENTS
--- a/arch/s390/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/s390/Kconfig
@@ -162,7 +162,6 @@ config S390
select HAVE_LIVEPATCH
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MEMBLOCK_PHYS_MAP
select MMU_GATHER_NO_GATHER
select HAVE_MOD_ARCH_SPECIFIC
--- a/arch/sh/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/sh/Kconfig
@@ -9,7 +9,6 @@ config SUPERH
select CLKDEV_LOOKUP
select DMA_DECLARE_COHERENT
select HAVE_IDE if HAS_IOPORT_MAP
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_OPROFILE
select HAVE_ARCH_TRACEHOOK
select HAVE_PERF_EVENTS
--- a/arch/sparc/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/sparc/Kconfig
@@ -65,7 +65,6 @@ config SPARC64
select HAVE_KRETPROBES
select HAVE_KPROBES
select MMU_GATHER_RCU_TABLE_FREE if SMP
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
--- a/arch/x86/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/arch/x86/Kconfig
@@ -192,7 +192,6 @@ config X86
select HAVE_KRETPROBES
select HAVE_KVM
select HAVE_LIVEPATCH if X86_64
- select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MIXED_BREAKPOINTS_REGS
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_MOVE_PMD
--- a/Documentation/features/vm/numa-memblock/arch-support.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-#
-# Feature name: numa-memblock
-# Kconfig: HAVE_MEMBLOCK_NODE_MAP
-# description: arch supports NUMA aware memblocks
-#
- -----------------------
- | arch |status|
- -----------------------
- | alpha: | TODO |
- | arc: | .. |
- | arm: | .. |
- | arm64: | ok |
- | c6x: | .. |
- | csky: | .. |
- | h8300: | .. |
- | hexagon: | .. |
- | ia64: | ok |
- | m68k: | .. |
- | microblaze: | ok |
- | mips: | ok |
- | nds32: | TODO |
- | nios2: | .. |
- | openrisc: | .. |
- | parisc: | .. |
- | powerpc: | ok |
- | riscv: | ok |
- | s390: | ok |
- | sh: | ok |
- | sparc: | ok |
- | um: | .. |
- | unicore32: | .. |
- | x86: | ok |
- | xtensa: | .. |
- -----------------------
--- a/include/linux/memblock.h~mm-remove-config_have_memblock_node_map-option
+++ a/include/linux/memblock.h
@@ -50,7 +50,7 @@ struct memblock_region {
phys_addr_t base;
phys_addr_t size;
enum memblock_flags flags;
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
+#ifdef CONFIG_NEED_MULTIPLE_NODES
int nid;
#endif
};
@@ -215,7 +215,6 @@ static inline bool memblock_is_nomap(str
return m->flags & MEMBLOCK_NOMAP;
}
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
int memblock_search_pfn_nid(unsigned long pfn, unsigned long *start_pfn,
unsigned long *end_pfn);
void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
@@ -234,7 +233,6 @@ void __next_mem_pfn_range(int *idx, int
#define for_each_mem_pfn_range(i, nid, p_start, p_end, p_nid) \
for (i = -1, __next_mem_pfn_range(&i, nid, p_start, p_end, p_nid); \
i >= 0; __next_mem_pfn_range(&i, nid, p_start, p_end, p_nid))
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
void __next_mem_pfn_range_in_zone(u64 *idx, struct zone *zone,
@@ -310,10 +308,10 @@ void __next_mem_pfn_range_in_zone(u64 *i
for_each_mem_range_rev(i, &memblock.memory, &memblock.reserved, \
nid, flags, p_start, p_end, p_nid)
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
int memblock_set_node(phys_addr_t base, phys_addr_t size,
struct memblock_type *type, int nid);
+#ifdef CONFIG_NEED_MULTIPLE_NODES
static inline void memblock_set_region_node(struct memblock_region *r, int nid)
{
r->nid = nid;
@@ -332,7 +330,7 @@ static inline int memblock_get_region_no
{
return 0;
}
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
+#endif /* CONFIG_NEED_MULTIPLE_NODES */
/* Flags for memblock allocation APIs */
#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0)
--- a/include/linux/mm.h~mm-remove-config_have_memblock_node_map-option
+++ a/include/linux/mm.h
@@ -2401,9 +2401,8 @@ static inline unsigned long get_num_phys
return phys_pages;
}
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
/*
- * With CONFIG_HAVE_MEMBLOCK_NODE_MAP set, an architecture may initialise its
+ * Using memblock node mappings, an architecture may initialise its
* zones, allocate the backing mem_map and account for memory holes in a more
* architecture independent manner. This is a substitute for creating the
* zone_sizes[] and zholes_size[] arrays and passing them to
@@ -2424,9 +2423,6 @@ static inline unsigned long get_num_phys
* registered physical page range. Similarly
* sparse_memory_present_with_active_regions() calls memory_present() for
* each range when SPARSEMEM is enabled.
- *
- * See mm/page_alloc.c for more information on each function exposed by
- * CONFIG_HAVE_MEMBLOCK_NODE_MAP.
*/
extern void free_area_init_nodes(unsigned long *max_zone_pfn);
unsigned long node_map_pfn_alignment(void);
@@ -2441,13 +2437,9 @@ extern void free_bootmem_with_active_reg
unsigned long max_low_pfn);
extern void sparse_memory_present_with_active_regions(int nid);
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-
-#if !defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP) && \
- !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID)
+#ifndef CONFIG_NEED_MULTIPLE_NODES
static inline int early_pfn_to_nid(unsigned long pfn)
{
- BUILD_BUG_ON(IS_ENABLED(CONFIG_NUMA));
return 0;
}
#else
--- a/include/linux/mmzone.h~mm-remove-config_have_memblock_node_map-option
+++ a/include/linux/mmzone.h
@@ -876,7 +876,7 @@ extern int movable_zone;
#ifdef CONFIG_HIGHMEM
static inline int zone_movable_is_highmem(void)
{
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
+#ifdef CONFIG_NEED_MULTIPLE_NODES
return movable_zone == ZONE_HIGHMEM;
#else
return (ZONE_MOVABLE - 1) == ZONE_HIGHMEM;
--- a/mm/Kconfig~mm-remove-config_have_memblock_node_map-option
+++ a/mm/Kconfig
@@ -126,9 +126,6 @@ config SPARSEMEM_VMEMMAP
pfn_to_page and page_to_pfn operations. This is the most
efficient option when sufficient kernel resources are available.
-config HAVE_MEMBLOCK_NODE_MAP
- bool
-
config HAVE_MEMBLOCK_PHYS_MAP
bool
--- a/mm/memblock.c~mm-remove-config_have_memblock_node_map-option
+++ a/mm/memblock.c
@@ -620,7 +620,7 @@ repeat:
* area, insert that portion.
*/
if (rbase > base) {
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
+#ifdef CONFIG_NEED_MULTIPLE_NODES
WARN_ON(nid != memblock_get_region_node(rgn));
#endif
WARN_ON(flags != rgn->flags);
@@ -1197,7 +1197,6 @@ void __init_memblock __next_mem_range_re
*idx = ULLONG_MAX;
}
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
/*
* Common iterator interface used to define for_each_mem_pfn_range().
*/
@@ -1247,6 +1246,7 @@ void __init_memblock __next_mem_pfn_rang
int __init_memblock memblock_set_node(phys_addr_t base, phys_addr_t size,
struct memblock_type *type, int nid)
{
+#ifdef CONFIG_NEED_MULTIPLE_NODES
int start_rgn, end_rgn;
int i, ret;
@@ -1258,9 +1258,10 @@ int __init_memblock memblock_set_node(ph
memblock_set_region_node(&type->regions[i], nid);
memblock_merge_regions(type);
+#endif
return 0;
}
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
+
#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
/**
* __next_mem_pfn_range_in_zone - iterator for for_each_*_range_in_zone()
@@ -1799,7 +1800,6 @@ bool __init_memblock memblock_is_map_mem
return !memblock_is_nomap(&memblock.memory.regions[i]);
}
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
int __init_memblock memblock_search_pfn_nid(unsigned long pfn,
unsigned long *start_pfn, unsigned long *end_pfn)
{
@@ -1814,7 +1814,6 @@ int __init_memblock memblock_search_pfn_
return memblock_get_region_node(&type->regions[mid]);
}
-#endif
/**
* memblock_is_region_memory - check if a region is a subset of memory
@@ -1905,7 +1904,7 @@ static void __init_memblock memblock_dum
size = rgn->size;
end = base + size - 1;
flags = rgn->flags;
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
+#ifdef CONFIG_NEED_MULTIPLE_NODES
if (memblock_get_region_node(rgn) != MAX_NUMNODES)
snprintf(nid_buf, sizeof(nid_buf), " on node %d",
memblock_get_region_node(rgn));
--- a/mm/memory_hotplug.c~mm-remove-config_have_memblock_node_map-option
+++ a/mm/memory_hotplug.c
@@ -1372,11 +1372,7 @@ check_pages_isolated_cb(unsigned long st
static int __init cmdline_parse_movable_node(char *p)
{
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
movable_node_enabled = true;
-#else
- pr_warn("movable_node parameter depends on CONFIG_HAVE_MEMBLOCK_NODE_MAP to work properly\n");
-#endif
return 0;
}
early_param("movable_node", cmdline_parse_movable_node);
--- a/mm/page_alloc.c~mm-remove-config_have_memblock_node_map-option
+++ a/mm/page_alloc.c
@@ -335,7 +335,6 @@ static unsigned long nr_kernel_pages __i
static unsigned long nr_all_pages __initdata;
static unsigned long dma_reserve __initdata;
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
static unsigned long arch_zone_lowest_possible_pfn[MAX_NR_ZONES] __initdata;
static unsigned long arch_zone_highest_possible_pfn[MAX_NR_ZONES] __initdata;
static unsigned long required_kernelcore __initdata;
@@ -348,7 +347,6 @@ static bool mirrored_kernelcore __memini
/* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
int movable_zone;
EXPORT_SYMBOL(movable_zone);
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
#if MAX_NUMNODES > 1
unsigned int nr_node_ids __read_mostly = MAX_NUMNODES;
@@ -1499,8 +1497,7 @@ void __free_pages_core(struct page *page
__free_pages(page, order);
}
-#if defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID) || \
- defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP)
+#ifdef CONFIG_NEED_MULTIPLE_NODES
static struct mminit_pfnnid_cache early_pfnnid_cache __meminitdata;
@@ -1542,7 +1539,7 @@ int __meminit early_pfn_to_nid(unsigned
return nid;
}
-#endif
+#endif /* CONFIG_NEED_MULTIPLE_NODES */
#ifdef CONFIG_NODES_SPAN_OTHER_NODES
/* Only safe to use early in boot when initialisation is single-threaded */
@@ -5936,7 +5933,6 @@ void __ref build_all_zonelists(pg_data_t
static bool __meminit
overlap_memmap_init(unsigned long zone, unsigned long *pfn)
{
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
static struct memblock_region *r;
if (mirrored_kernelcore && zone == ZONE_MOVABLE) {
@@ -5952,7 +5948,6 @@ overlap_memmap_init(unsigned long zone,
return true;
}
}
-#endif
return false;
}
@@ -6585,8 +6580,7 @@ static unsigned long __init zone_absent_
return nr_absent;
}
-#else /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-static inline unsigned long __init zone_spanned_pages_in_node(int nid,
+static inline unsigned long __init compat_zone_spanned_pages_in_node(int nid,
unsigned long zone_type,
unsigned long node_start_pfn,
unsigned long node_end_pfn,
@@ -6605,7 +6599,7 @@ static inline unsigned long __init zone_
return zones_size[zone_type];
}
-static inline unsigned long __init zone_absent_pages_in_node(int nid,
+static inline unsigned long __init compat_zone_absent_pages_in_node(int nid,
unsigned long zone_type,
unsigned long node_start_pfn,
unsigned long node_end_pfn,
@@ -6617,13 +6611,12 @@ static inline unsigned long __init zone_
return zholes_size[zone_type];
}
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-
static void __init calculate_node_totalpages(struct pglist_data *pgdat,
unsigned long node_start_pfn,
unsigned long node_end_pfn,
unsigned long *zones_size,
- unsigned long *zholes_size)
+ unsigned long *zholes_size,
+ bool compat)
{
unsigned long realtotalpages = 0, totalpages = 0;
enum zone_type i;
@@ -6631,17 +6624,38 @@ static void __init calculate_node_totalp
for (i = 0; i < MAX_NR_ZONES; i++) {
struct zone *zone = pgdat->node_zones + i;
unsigned long zone_start_pfn, zone_end_pfn;
+ unsigned long spanned, absent;
unsigned long size, real_size;
- size = zone_spanned_pages_in_node(pgdat->node_id, i,
- node_start_pfn,
- node_end_pfn,
- &zone_start_pfn,
- &zone_end_pfn,
- zones_size);
- real_size = size - zone_absent_pages_in_node(pgdat->node_id, i,
- node_start_pfn, node_end_pfn,
- zholes_size);
+ if (compat) {
+ spanned = compat_zone_spanned_pages_in_node(
+ pgdat->node_id, i,
+ node_start_pfn,
+ node_end_pfn,
+ &zone_start_pfn,
+ &zone_end_pfn,
+ zones_size);
+ absent = compat_zone_absent_pages_in_node(
+ pgdat->node_id, i,
+ node_start_pfn,
+ node_end_pfn,
+ zholes_size);
+ } else {
+ spanned = zone_spanned_pages_in_node(pgdat->node_id, i,
+ node_start_pfn,
+ node_end_pfn,
+ &zone_start_pfn,
+ &zone_end_pfn,
+ zones_size);
+ absent = zone_absent_pages_in_node(pgdat->node_id, i,
+ node_start_pfn,
+ node_end_pfn,
+ zholes_size);
+ }
+
+ size = spanned;
+ real_size = size - absent;
+
if (size)
zone->zone_start_pfn = zone_start_pfn;
else
@@ -6941,10 +6955,8 @@ static void __ref alloc_node_mem_map(str
*/
if (pgdat == NODE_DATA(0)) {
mem_map = NODE_DATA(0)->node_mem_map;
-#if defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP) || defined(CONFIG_FLATMEM)
if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
mem_map -= offset;
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
}
#endif
}
@@ -6961,9 +6973,10 @@ static inline void pgdat_set_deferred_ra
static inline void pgdat_set_deferred_range(pg_data_t *pgdat) {}
#endif
-void __init free_area_init_node(int nid, unsigned long *zones_size,
- unsigned long node_start_pfn,
- unsigned long *zholes_size)
+static void __init __free_area_init_node(int nid, unsigned long *zones_size,
+ unsigned long node_start_pfn,
+ unsigned long *zholes_size,
+ bool compat)
{
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long start_pfn = 0;
@@ -6975,16 +6988,16 @@ void __init free_area_init_node(int nid,
pgdat->node_id = nid;
pgdat->node_start_pfn = node_start_pfn;
pgdat->per_cpu_nodestats = NULL;
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
- get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
- pr_info("Initmem setup node %d [mem %#018Lx-%#018Lx]\n", nid,
- (u64)start_pfn << PAGE_SHIFT,
- end_pfn ? ((u64)end_pfn << PAGE_SHIFT) - 1 : 0);
-#else
- start_pfn = node_start_pfn;
-#endif
+ if (!compat) {
+ get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
+ pr_info("Initmem setup node %d [mem %#018Lx-%#018Lx]\n", nid,
+ (u64)start_pfn << PAGE_SHIFT,
+ end_pfn ? ((u64)end_pfn << PAGE_SHIFT) - 1 : 0);
+ } else {
+ start_pfn = node_start_pfn;
+ }
calculate_node_totalpages(pgdat, start_pfn, end_pfn,
- zones_size, zholes_size);
+ zones_size, zholes_size, compat);
alloc_node_mem_map(pgdat);
pgdat_set_deferred_range(pgdat);
@@ -6992,6 +7005,14 @@ void __init free_area_init_node(int nid,
free_area_init_core(pgdat);
}
+void __init free_area_init_node(int nid, unsigned long *zones_size,
+ unsigned long node_start_pfn,
+ unsigned long *zholes_size)
+{
+ __free_area_init_node(nid, zones_size, node_start_pfn, zholes_size,
+ true);
+}
+
#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
/*
* Initialize all valid struct pages in the range [spfn, epfn) and mark them
@@ -7075,8 +7096,6 @@ static inline void __init init_unavailab
}
#endif /* !CONFIG_FLAT_NODE_MEM_MAP */
-#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
-
#if MAX_NUMNODES > 1
/*
* Figure out the number of possible node ids.
@@ -7505,8 +7524,8 @@ void __init free_area_init_nodes(unsigne
init_unavailable_mem();
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
- free_area_init_node(nid, NULL,
- find_min_pfn_for_node(nid), NULL);
+ __free_area_init_node(nid, NULL,
+ find_min_pfn_for_node(nid), NULL, false);
/* Any memory on that node */
if (pgdat->node_present_pages)
@@ -7571,8 +7590,6 @@ static int __init cmdline_parse_movablec
early_param("kernelcore", cmdline_parse_kernelcore);
early_param("movablecore", cmdline_parse_movablecore);
-#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-
void adjust_managed_page_count(struct page *page, long count)
{
atomic_long_add(count, &page_zone(page)->managed_pages);
_
next prev parent reply other threads:[~2020-06-03 22:57 UTC|newest]
Thread overview: 142+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-03 22:55 incoming Andrew Morton
2020-06-03 22:56 ` [patch 001/131] mm/slub: fix a memory leak in sysfs_slab_add() Andrew Morton
2020-06-03 22:56 ` [patch 002/131] mm/memcg: optimize memory.numa_stat like memory.stat Andrew Morton
2020-06-03 22:56 ` [patch 003/131] mm/gup: move __get_user_pages_fast() down a few lines in gup.c Andrew Morton
2020-06-04 1:51 ` John Hubbard
2020-06-03 22:56 ` [patch 004/131] mm/gup: refactor and de-duplicate gup_fast() code Andrew Morton
2020-06-04 2:19 ` Linus Torvalds
2020-06-04 3:19 ` Linus Torvalds
2020-06-04 4:31 ` Linus Torvalds
2020-06-04 5:18 ` John Hubbard
2020-06-03 22:56 ` [patch 005/131] mm/gup: introduce pin_user_pages_fast_only() Andrew Morton
2020-06-03 22:56 ` [patch 006/131] drm/i915: convert get_user_pages() --> pin_user_pages() Andrew Morton
2020-06-03 22:56 ` [patch 007/131] mm/gup: might_lock_read(mmap_sem) in get_user_pages_fast() Andrew Morton
2020-06-03 22:56 ` [patch 008/131] kasan: stop tests being eliminated as dead code with FORTIFY_SOURCE Andrew Morton
2020-06-03 22:56 ` [patch 009/131] string.h: fix incompatibility between FORTIFY_SOURCE and KASAN Andrew Morton
2020-06-03 22:56 ` [patch 010/131] mm: clarify __GFP_MEMALLOC usage Andrew Morton
2020-06-03 22:56 ` [patch 011/131] mm: memblock: replace dereferences of memblock_region.nid with API calls Andrew Morton
2020-06-03 22:56 ` [patch 012/131] mm: make early_pfn_to_nid() and related defintions close to each other Andrew Morton
2020-06-03 22:57 ` Andrew Morton [this message]
2020-06-03 22:57 ` [patch 014/131] mm: free_area_init: use maximal zone PFNs rather than zone sizes Andrew Morton
2020-06-03 22:57 ` [patch 015/131] mm: use free_area_init() instead of free_area_init_nodes() Andrew Morton
2020-06-03 22:57 ` [patch 016/131] alpha: simplify detection of memory zone boundaries Andrew Morton
2020-06-03 22:57 ` [patch 017/131] arm: " Andrew Morton
2020-06-03 22:57 ` [patch 018/131] arm64: simplify detection of memory zone boundaries for UMA configs Andrew Morton
2020-06-03 22:57 ` [patch 019/131] csky: simplify detection of memory zone boundaries Andrew Morton
2020-06-03 22:57 ` [patch 020/131] m68k: mm: " Andrew Morton
2020-06-03 22:57 ` [patch 021/131] parisc: " Andrew Morton
2020-06-03 22:57 ` [patch 022/131] sparc32: " Andrew Morton
2020-06-03 22:57 ` [patch 023/131] unicore32: " Andrew Morton
2020-06-03 22:57 ` [patch 024/131] xtensa: " Andrew Morton
2020-06-03 22:57 ` [patch 025/131] mm: memmap_init: iterate over memblock regions rather that check each PFN Andrew Morton
2020-06-03 22:57 ` [patch 026/131] mm: remove early_pfn_in_nid() and CONFIG_NODES_SPAN_OTHER_NODES Andrew Morton
2020-06-03 22:58 ` [patch 027/131] mm: free_area_init: allow defining max_zone_pfn in descending order Andrew Morton
2020-06-03 22:58 ` [patch 028/131] mm: rename free_area_init_node() to free_area_init_memoryless_node() Andrew Morton
2020-06-03 22:58 ` [patch 029/131] mm: clean up free_area_init_node() and its helpers Andrew Morton
2020-06-03 22:58 ` [patch 030/131] mm: simplify find_min_pfn_with_active_regions() Andrew Morton
2020-06-03 22:58 ` [patch 031/131] docs/vm: update memory-models documentation Andrew Morton
2020-06-03 22:58 ` [patch 032/131] mm/page_alloc.c: bad_[reason|flags] is not necessary when PageHWPoison Andrew Morton
2020-06-03 22:58 ` [patch 033/131] mm/page_alloc.c: bad_flags is not necessary for bad_page() Andrew Morton
2020-06-03 22:58 ` [patch 034/131] mm/page_alloc.c: rename free_pages_check_bad() to check_free_page_bad() Andrew Morton
2020-06-03 22:58 ` [patch 035/131] mm/page_alloc.c: rename free_pages_check() to check_free_page() Andrew Morton
2020-06-03 22:58 ` [patch 036/131] mm/page_alloc.c: extract check_[new|free]_page_bad() common part to page_bad_reason() Andrew Morton
2020-06-03 22:58 ` [patch 037/131] mm,page_alloc,cma: conditionally prefer cma pageblocks for movable allocations Andrew Morton
2020-06-03 22:58 ` [patch 038/131] mm/page_alloc.c: remove unused free_bootmem_with_active_regions Andrew Morton
2020-06-03 22:58 ` [patch 039/131] mm/page_alloc.c: only tune sysctl_lowmem_reserve_ratio value once when changing it Andrew Morton
2020-06-03 22:58 ` [patch 040/131] mm/page_alloc.c: clear out zone->lowmem_reserve[] if the zone is empty Andrew Morton
2020-06-03 22:58 ` [patch 041/131] mm/vmstat.c: do not show lowmem reserve protection information of empty zone Andrew Morton
2020-06-03 22:58 ` [patch 042/131] mm/page_alloc: use ac->high_zoneidx for classzone_idx Andrew Morton
2020-06-03 22:59 ` [patch 043/131] mm/page_alloc: integrate classzone_idx and high_zoneidx Andrew Morton
2020-06-03 22:59 ` [patch 044/131] mm/page_alloc.c: use NODE_MASK_NONE in build_zonelists() Andrew Morton
2020-06-03 22:59 ` [patch 045/131] mm: rename gfpflags_to_migratetype to gfp_migratetype for same convention Andrew Morton
2020-06-03 22:59 ` [patch 046/131] mm/page_alloc.c: reset numa stats for boot pagesets Andrew Morton
2020-06-03 22:59 ` [patch 047/131] mm, page_alloc: reset the zone->watermark_boost early Andrew Morton
2020-06-03 22:59 ` [patch 048/131] mm/page_alloc: restrict and formalize compound_page_dtors[] Andrew Morton
2020-06-03 22:59 ` [patch 049/131] mm/pagealloc.c: call touch_nmi_watchdog() on max order boundaries in deferred init Andrew Morton
2020-06-03 22:59 ` [patch 050/131] mm: initialize deferred pages with interrupts enabled Andrew Morton
2020-06-03 22:59 ` [patch 051/131] mm: call cond_resched() from deferred_init_memmap() Andrew Morton
2020-06-03 22:59 ` [patch 052/131] padata: remove exit routine Andrew Morton
2020-06-03 22:59 ` [patch 053/131] padata: initialize earlier Andrew Morton
2020-06-03 22:59 ` [patch 054/131] padata: allocate work structures for parallel jobs from a pool Andrew Morton
2020-06-03 22:59 ` [patch 055/131] padata: add basic support for multithreaded jobs Andrew Morton
2020-06-03 22:59 ` [patch 056/131] mm: don't track number of pages during deferred initialization Andrew Morton
2020-06-03 22:59 ` [patch 057/131] mm: parallelize deferred_init_memmap() Andrew Morton
2020-06-03 22:59 ` [patch 058/131] mm: make deferred init's max threads arch-specific Andrew Morton
2020-06-03 22:59 ` [patch 059/131] padata: document multithreaded jobs Andrew Morton
2020-06-03 23:00 ` [patch 060/131] mm/page_alloc.c: add missing newline Andrew Morton
2020-06-03 23:00 ` [patch 061/131] khugepaged: add self test Andrew Morton
2020-06-03 23:00 ` [patch 062/131] khugepaged: do not stop collapse if less than half PTEs are referenced Andrew Morton
2020-06-03 23:00 ` [patch 063/131] khugepaged: drain all LRU caches before scanning pages Andrew Morton
2020-06-03 23:00 ` [patch 064/131] khugepaged: drain LRU add pagevec after swapin Andrew Morton
2020-06-03 23:00 ` [patch 065/131] khugepaged: allow to collapse a page shared across fork Andrew Morton
2020-06-03 23:00 ` [patch 066/131] khugepaged: allow to collapse PTE-mapped compound pages Andrew Morton
2020-06-03 23:00 ` [patch 067/131] thp: change CoW semantics for anon-THP Andrew Morton
2020-06-03 23:00 ` [patch 068/131] khugepaged: introduce 'max_ptes_shared' tunable Andrew Morton
2020-06-03 23:00 ` [patch 069/131] hugetlbfs: add arch_hugetlb_valid_size Andrew Morton
2020-06-03 23:00 ` [patch 070/131] hugetlbfs: move hugepagesz= parsing to arch independent code Andrew Morton
2020-06-03 23:00 ` [patch 071/131] hugetlbfs: remove hugetlb_add_hstate() warning for existing hstate Andrew Morton
2020-06-03 23:00 ` [patch 072/131] hugetlbfs: clean up command line processing Andrew Morton
2020-06-03 23:00 ` [patch 073/131] hugetlbfs: fix changes to " Andrew Morton
2020-06-03 23:00 ` [patch 074/131] mm/hugetlb: avoid unnecessary check on pud and pmd entry in huge_pte_offset Andrew Morton
2020-06-03 23:00 ` [patch 075/131] arm64/mm: drop __HAVE_ARCH_HUGE_PTEP_GET Andrew Morton
2020-06-03 23:01 ` [patch 076/131] mm/hugetlb: define a generic fallback for is_hugepage_only_range() Andrew Morton
2020-06-03 23:01 ` [patch 077/131] mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags() Andrew Morton
2020-06-03 23:01 ` [patch 078/131] mm: simplify calling a compound page destructor Andrew Morton
2020-06-03 23:01 ` [patch 079/131] mm/vmscan.c: use update_lru_size() in update_lru_sizes() Andrew Morton
2020-06-03 23:01 ` [patch 080/131] mm/vmscan: count layzfree pages and fix nr_isolated_* mismatch Andrew Morton
2020-06-03 23:01 ` [patch 081/131] mm/vmscan.c: change prototype for shrink_page_list Andrew Morton
2020-06-03 23:01 ` [patch 082/131] mm/vmscan: update the comment of should_continue_reclaim() Andrew Morton
2020-06-03 23:01 ` [patch 083/131] mm: fix NUMA node file count error in replace_page_cache() Andrew Morton
2020-06-03 23:01 ` [patch 084/131] mm: memcontrol: fix stat-corrupting race in charge moving Andrew Morton
2020-06-03 23:01 ` [patch 085/131] mm: memcontrol: drop @compound parameter from memcg charging API Andrew Morton
2020-06-03 23:01 ` [patch 086/131] mm: shmem: remove rare optimization when swapin races with hole punching Andrew Morton
2020-06-03 23:01 ` [patch 087/131] mm: memcontrol: move out cgroup swaprate throttling Andrew Morton
2020-06-03 23:01 ` [patch 088/131] mm: memcontrol: convert page cache to a new mem_cgroup_charge() API Andrew Morton
2020-06-03 23:01 ` [patch 089/131] mm: memcontrol: prepare uncharging for removal of private page type counters Andrew Morton
2020-06-03 23:01 ` [patch 090/131] mm: memcontrol: prepare move_account " Andrew Morton
2020-06-03 23:01 ` [patch 091/131] mm: memcontrol: prepare cgroup vmstat infrastructure for native anon counters Andrew Morton
2020-06-03 23:01 ` [patch 092/131] mm: memcontrol: switch to native NR_FILE_PAGES and NR_SHMEM counters Andrew Morton
2020-06-03 23:01 ` [patch 093/131] mm: memcontrol: switch to native NR_ANON_MAPPED counter Andrew Morton
2020-06-03 23:02 ` [patch 094/131] mm: memcontrol: switch to native NR_ANON_THPS counter Andrew Morton
2020-06-03 23:02 ` [patch 095/131] mm: memcontrol: convert anon and file-thp to new mem_cgroup_charge() API Andrew Morton
2020-06-03 23:02 ` [patch 096/131] mm: memcontrol: drop unused try/commit/cancel charge API Andrew Morton
2020-06-03 23:02 ` [patch 097/131] mm: memcontrol: prepare swap controller setup for integration Andrew Morton
2020-06-03 23:02 ` [patch 098/131] mm: memcontrol: make swap tracking an integral part of memory control Andrew Morton
2020-06-03 23:02 ` [patch 099/131] mm: memcontrol: charge swapin pages on instantiation Andrew Morton
2020-06-03 23:02 ` [patch 100/131] mm: memcontrol: document the new swap control behavior Andrew Morton
2020-06-03 23:02 ` [patch 101/131] mm: memcontrol: delete unused lrucare handling Andrew Morton
2020-06-03 23:02 ` [patch 102/131] mm: memcontrol: update page->mem_cgroup stability rules Andrew Morton
2020-06-03 23:02 ` [patch 103/131] mm: fix LRU balancing effect of new transparent huge pages Andrew Morton
2020-06-03 23:02 ` [patch 104/131] mm: keep separate anon and file statistics on page reclaim activity Andrew Morton
2020-06-03 23:02 ` [patch 105/131] mm: allow swappiness that prefers reclaiming anon over the file workingset Andrew Morton
2020-06-03 23:02 ` [patch 106/131] mm: fold and remove lru_cache_add_anon() and lru_cache_add_file() Andrew Morton
2020-06-03 23:02 ` [patch 107/131] mm: workingset: let cache workingset challenge anon Andrew Morton
2020-06-03 23:02 ` [patch 108/131] mm: remove use-once cache bias from LRU balancing Andrew Morton
2020-06-03 23:02 ` [patch 109/131] mm: vmscan: drop unnecessary div0 avoidance rounding in get_scan_count() Andrew Morton
2020-06-03 23:02 ` [patch 110/131] mm: base LRU balancing on an explicit cost model Andrew Morton
2020-06-03 23:02 ` [patch 111/131] mm: deactivations shouldn't bias the LRU balance Andrew Morton
2020-06-03 23:03 ` [patch 112/131] mm: only count actual rotations as LRU reclaim cost Andrew Morton
2020-06-03 23:03 ` [patch 113/131] mm: balance LRU lists based on relative thrashing Andrew Morton
2020-06-09 9:15 ` Alex Shi
2020-06-09 14:45 ` Johannes Weiner
2020-06-10 5:23 ` Joonsoo Kim
2020-06-11 3:28 ` Alex Shi
2020-06-03 23:03 ` [patch 114/131] mm: vmscan: determine anon/file pressure balance at the reclaim root Andrew Morton
2020-06-03 23:03 ` [patch 115/131] mm: vmscan: reclaim writepage is IO cost Andrew Morton
2020-06-03 23:03 ` [patch 116/131] mm: vmscan: limit the range of LRU type balancing Andrew Morton
2020-06-03 23:03 ` [patch 117/131] mm: swap: fix vmstats for huge pages Andrew Morton
2020-06-03 23:03 ` [patch 118/131] mm: swap: memcg: fix memcg stats " Andrew Morton
2020-06-03 23:03 ` [patch 119/131] tools/vm/page_owner_sort.c: filter out unneeded line Andrew Morton
2020-06-03 23:03 ` [patch 120/131] mm, mempolicy: fix up gup usage in lookup_node Andrew Morton
2020-06-03 23:03 ` [patch 121/131] include/linux/memblock.h: fix minor typo and unclear comment Andrew Morton
2020-06-03 23:03 ` [patch 122/131] sparc32: register memory occupied by kernel as memblock.memory Andrew Morton
2020-06-03 23:03 ` [patch 123/131] hugetlbfs: get unmapped area below TASK_UNMAPPED_BASE for hugetlbfs Andrew Morton
2020-06-03 23:03 ` [patch 124/131] mm: thp: don't need to drain lru cache when splitting and mlocking THP Andrew Morton
2020-06-03 23:03 ` [patch 125/131] powerpc/mm: drop platform defined pmd_mknotpresent() Andrew Morton
2020-06-03 23:03 ` [patch 126/131] mm/thp: rename pmd_mknotpresent() as pmd_mkinvalid() Andrew Morton
2020-06-03 23:03 ` [patch 127/131] drivers/base/memory.c: cache memory blocks in xarray to accelerate lookup Andrew Morton
2020-06-03 23:03 ` [patch 128/131] mm: add DEBUG_WX support Andrew Morton
2020-06-03 23:03 ` [patch 129/131] riscv: support DEBUG_WX Andrew Morton
2020-06-03 23:03 ` [patch 130/131] x86: mm: use ARCH_HAS_DEBUG_WX instead of arch defined Andrew Morton
2020-06-03 23:04 ` [patch 131/131] arm64: " Andrew Morton
2020-06-04 0:54 ` mmotm 2020-06-03-17-54 uploaded Andrew Morton
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