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| author | Mike Rapoport <rppt@linux.ibm.com> | 2020-10-14 02:58:03 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-14 04:38:35 +0300 |
| commit | c9118e6c37bff9ade90b638207a6e0db676ee6a9 (patch) | |
| tree | 03257bad7be1ed3d71fcd15b88d088c5c90f5aef /arch/arm | |
| parent | 6e245ad4a17ab92dba63406d3f517520a86c0a80 (diff) | |
| download | linux-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.c | 11 |
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 |