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From: Mike Rapoport <rppt@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	linux-mips@vger.kernel.org, Max Filippov <jcmvbkbc@gmail.com>,
	Paul Mackerras <paulus@samba.org>,
	sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org,
	Will Deacon <will@kernel.org>, Stafford Horne <shorne@gmail.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Michael Ellerman <mpe@ellerman.id.au>,
	x86@kernel.org, Russell King <linux@armlinux.org.uk>,
	Mike Rapoport <rppt@linux.ibm.com>,
	clang-built-linux@googlegroups.com,
	Ingo Molnar <mingo@redhat.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	uclinux-h8-devel@lists.sourceforge.jp,
	linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org,
	Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org,
	Michal Simek <monstr@monstr.eu>,
	linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Christoph Hellwig <hch@lst.de>, Mike Rapoport <rppt@kernel.org>
Subject: [PATCH 15/15] memblock: remove 'type' parameter from for_each_memblock()
Date: Tue, 28 Jul 2020 08:11:53 +0300	[thread overview]
Message-ID: <20200728051153.1590-16-rppt@kernel.org> (raw)
In-Reply-To: <20200728051153.1590-1-rppt@kernel.org>

From: Mike Rapoport <rppt@linux.ibm.com>

for_each_memblock() is used exclusively to iterate over memblock.memory in
a few places that use data from memblock_region rather than the memory
ranges.

Remove type parameter from the for_each_memblock() iterator to improve
encapsulation of memblock internals from its users.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
 arch/arm64/kernel/setup.c      |  2 +-
 arch/arm64/mm/numa.c           |  2 +-
 arch/mips/netlogic/xlp/setup.c |  2 +-
 include/linux/memblock.h       | 10 +++++++---
 mm/memblock.c                  |  4 ++--
 mm/page_alloc.c                |  8 ++++----
 6 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 93b3844cf442..23da7908cbed 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -217,7 +217,7 @@ static void __init request_standard_resources(void)
 	if (!standard_resources)
 		panic("%s: Failed to allocate %zu bytes\n", __func__, res_size);
 
-	for_each_memblock(memory, region) {
+	for_each_memblock(region) {
 		res = &standard_resources[i++];
 		if (memblock_is_nomap(region)) {
 			res->name  = "reserved";
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 0cbdbcc885fb..08721d2c0b79 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -350,7 +350,7 @@ static int __init numa_register_nodes(void)
 	struct memblock_region *mblk;
 
 	/* Check that valid nid is set to memblks */
-	for_each_memblock(memory, mblk) {
+	for_each_memblock(mblk) {
 		int mblk_nid = memblock_get_region_node(mblk);
 
 		if (mblk_nid == NUMA_NO_NODE || mblk_nid >= MAX_NUMNODES) {
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index 1a0fc5b62ba4..e69d9fc468cf 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -70,7 +70,7 @@ static void nlm_fixup_mem(void)
 	const int pref_backup = 512;
 	struct memblock_region *mem;
 
-	for_each_memblock(memory, mem) {
+	for_each_memblock(mem) {
 		memblock_remove(mem->base + mem->size - pref_backup,
 			pref_backup);
 	}
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index d70c2835e913..c901cb8ecf92 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -527,9 +527,13 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
 	return PFN_UP(reg->base + reg->size);
 }
 
-#define for_each_memblock(memblock_type, region)					\
-	for (region = memblock.memblock_type.regions;					\
-	     region < (memblock.memblock_type.regions + memblock.memblock_type.cnt);	\
+/**
+ * for_each_memblock - itereate over registered memory regions
+ * @region: loop variable
+ */
+#define for_each_memblock(region)					\
+	for (region = memblock.memory.regions;				\
+	     region < (memblock.memory.regions + memblock.memory.cnt);	\
 	     region++)
 
 extern void *alloc_large_system_hash(const char *tablename,
diff --git a/mm/memblock.c b/mm/memblock.c
index 2ad5e6e47215..550bb72cf6cb 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1694,7 +1694,7 @@ static phys_addr_t __init_memblock __find_max_addr(phys_addr_t limit)
 	 * the memory memblock regions, if the @limit exceeds the total size
 	 * of those regions, max_addr will keep original value PHYS_ADDR_MAX
 	 */
-	for_each_memblock(memory, r) {
+	for_each_memblock(r) {
 		if (limit <= r->size) {
 			max_addr = r->base + limit;
 			break;
@@ -1864,7 +1864,7 @@ void __init_memblock memblock_trim_memory(phys_addr_t align)
 	phys_addr_t start, end, orig_start, orig_end;
 	struct memblock_region *r;
 
-	for_each_memblock(memory, r) {
+	for_each_memblock(r) {
 		orig_start = r->base;
 		orig_end = r->base + r->size;
 		start = round_up(orig_start, align);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 95af111d69d3..8a19f46dc86e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5927,7 +5927,7 @@ overlap_memmap_init(unsigned long zone, unsigned long *pfn)
 
 	if (mirrored_kernelcore && zone == ZONE_MOVABLE) {
 		if (!r || *pfn >= memblock_region_memory_end_pfn(r)) {
-			for_each_memblock(memory, r) {
+			for_each_memblock(r) {
 				if (*pfn < memblock_region_memory_end_pfn(r))
 					break;
 			}
@@ -6528,7 +6528,7 @@ static unsigned long __init zone_absent_pages_in_node(int nid,
 		unsigned long start_pfn, end_pfn;
 		struct memblock_region *r;
 
-		for_each_memblock(memory, r) {
+		for_each_memblock(r) {
 			start_pfn = clamp(memblock_region_memory_base_pfn(r),
 					  zone_start_pfn, zone_end_pfn);
 			end_pfn = clamp(memblock_region_memory_end_pfn(r),
@@ -7122,7 +7122,7 @@ static void __init find_zone_movable_pfns_for_nodes(void)
 	 * options.
 	 */
 	if (movable_node_is_enabled()) {
-		for_each_memblock(memory, r) {
+		for_each_memblock(r) {
 			if (!memblock_is_hotpluggable(r))
 				continue;
 
@@ -7143,7 +7143,7 @@ static void __init find_zone_movable_pfns_for_nodes(void)
 	if (mirrored_kernelcore) {
 		bool mem_below_4gb_not_mirrored = false;
 
-		for_each_memblock(memory, r) {
+		for_each_memblock(r) {
 			if (memblock_is_mirror(r))
 				continue;
 
-- 
2.26.2


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      parent reply	other threads:[~2020-07-28  5:17 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28  5:11 [PATCH 00/15] memblock: seasonal cleaning^w cleanup Mike Rapoport
2020-07-28  5:11 ` [PATCH 01/15] KVM: PPC: Book3S HV: simplify kvm_cma_reserve() Mike Rapoport
2020-07-28  5:11 ` [PATCH 02/15] dma-contiguous: simplify cma_early_percent_memory() Mike Rapoport
2020-07-28  6:37   ` Christoph Hellwig
2020-07-28  5:11 ` [PATCH 03/15] arm, xtensa: simplify initialization of high memory pages Mike Rapoport
2020-07-28  8:09   ` Max Filippov
2020-07-28  5:11 ` [PATCH 04/15] arm64: numa: simplify dummy_numa_init() Mike Rapoport
2020-07-29  8:30   ` Jonathan Cameron
2020-07-30 12:03   ` Catalin Marinas
2020-07-28  5:11 ` [PATCH 05/15] h8300, nds32, openrisc: simplify detection of memory extents Mike Rapoport
2020-07-29 11:41   ` Stafford Horne
2020-07-28  5:11 ` [PATCH 06/15] powerpc: fadamp: simplify fadump_reserve_crash_area() Mike Rapoport
2020-07-30 12:15   ` Michael Ellerman
2020-08-01 10:18     ` Mike Rapoport
2020-08-01 10:53       ` Hari Bathini
2020-08-02 13:14       ` Michael Ellerman
2020-07-28  5:11 ` [PATCH 07/15] riscv: drop unneeded node initialization Mike Rapoport
2020-07-28  5:11 ` [PATCH 08/15] mircoblaze: drop unneeded NUMA and sparsemem initializations Mike Rapoport
2020-07-28  5:11 ` [PATCH 09/15] memblock: make for_each_memblock_type() iterator private Mike Rapoport
2020-07-30  1:52   ` Baoquan He
2020-07-28  5:11 ` [PATCH 10/15] memblock: make memblock_debug and related functionality private Mike Rapoport
2020-07-30  1:54   ` Baoquan He
2020-07-28  5:11 ` [PATCH 11/15] memblock: reduce number of parameters in for_each_mem_range() Mike Rapoport
2020-07-30  2:22   ` Baoquan He
2020-07-28  5:11 ` [PATCH 12/15] arch, mm: replace for_each_memblock() with for_each_mem_pfn_range() Mike Rapoport
2020-07-28  5:11 ` [PATCH 13/15] arch, drivers: replace for_each_membock() with for_each_mem_range() Mike Rapoport
2020-07-28  5:11 ` [PATCH 14/15] x86/numa: remove redundant iteration over memblock.reserved Mike Rapoport
2020-07-28 10:44   ` Ingo Molnar
2020-07-28 10:56     ` Mike Rapoport
2020-07-28 11:31       ` Ingo Molnar
2020-07-28 11:02   ` Baoquan He
2020-07-28 14:15     ` Mike Rapoport
2020-07-28 14:23       ` Baoquan He
2020-07-28  5:11 ` Mike Rapoport [this message]

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