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authorMike Rapoport <rppt@linux.ibm.com>2020-10-14 02:58:03 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-14 04:38:35 +0300
commitc9118e6c37bff9ade90b638207a6e0db676ee6a9 (patch)
tree03257bad7be1ed3d71fcd15b88d088c5c90f5aef /arch/arm
parent6e245ad4a17ab92dba63406d3f517520a86c0a80 (diff)
downloadlinux-c9118e6c37bff9ade90b638207a6e0db676ee6a9.tar.xz
arch, mm: replace for_each_memblock() with for_each_mem_pfn_range()
There are several occurrences of the following pattern: for_each_memblock(memory, reg) { start_pfn = memblock_region_memory_base_pfn(reg); end_pfn = memblock_region_memory_end_pfn(reg); /* do something with start_pfn and end_pfn */ } Rather than iterate over all memblock.memory regions and each time query for their start and end PFNs, use for_each_mem_pfn_range() iterator to get simpler and clearer code. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Baoquan He <bhe@redhat.com> Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> [.clang-format] Cc: Andy Lutomirski <luto@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Daniel Axtens <dja@axtens.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Emil Renner Berthing <kernel@esmil.dk> Cc: Hari Bathini <hbathini@linux.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: https://lkml.kernel.org/r/20200818151634.14343-12-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mm/init.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 50a5a30a78ff..45f9d5ec2360 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -299,16 +299,14 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn)
*/
static void __init free_unused_memmap(void)
{
- unsigned long start, prev_end = 0;
- struct memblock_region *reg;
+ unsigned long start, end, prev_end = 0;
+ int i;
/*
* This relies on each bank being in address order.
* The banks are sorted previously in bootmem_init().
*/
- for_each_memblock(memory, reg) {
- start = memblock_region_memory_base_pfn(reg);
-
+ for_each_mem_pfn_range(i, MAX_NUMNODES, &start, &end, NULL) {
#ifdef CONFIG_SPARSEMEM
/*
* Take care not to free memmap entries that don't exist
@@ -336,8 +334,7 @@ static void __init free_unused_memmap(void)
* memmap entries are valid from the bank end aligned to
* MAX_ORDER_NR_PAGES.
*/
- prev_end = ALIGN(memblock_region_memory_end_pfn(reg),
- MAX_ORDER_NR_PAGES);
+ prev_end = ALIGN(end, MAX_ORDER_NR_PAGES);
}
#ifdef CONFIG_SPARSEMEM