Messages in this thread | | | Subject | Re: [PATCH v2] arm64: mm: reserve hugetlb CMA after numa_init | From | Anshuman Khandual <> | Date | Wed, 17 Jun 2020 09:42:18 +0530 |
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On 06/17/2020 03:49 AM, Barry Song wrote: > hugetlb_cma_reserve() is called at the wrong place. numa_init has not been > done yet. so all reserved memory will be located at node0. > > Fixes: cf11e85fc08c ("mm: hugetlb: optionally allocate gigantic hugepages using cma") > Cc: Matthias Brugger <matthias.bgg@gmail.com> > Acked-by: Roman Gushchin <guro@fb.com> > Signed-off-by: Barry Song <song.bao.hua@hisilicon.com> > --- > -v2: add Fixes tag according to Matthias Brugger's comment > > arch/arm64/mm/init.c | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c > index e631e6425165..41914b483d54 100644 > --- a/arch/arm64/mm/init.c > +++ b/arch/arm64/mm/init.c > @@ -404,11 +404,6 @@ void __init arm64_memblock_init(void) > high_memory = __va(memblock_end_of_DRAM() - 1) + 1; > > dma_contiguous_reserve(arm64_dma32_phys_limit); > - > -#ifdef CONFIG_ARM64_4K_PAGES > - hugetlb_cma_reserve(PUD_SHIFT - PAGE_SHIFT); > -#endif > - > } > > void __init bootmem_init(void) > @@ -424,6 +419,11 @@ void __init bootmem_init(void) > min_low_pfn = min; > > arm64_numa_init(); > + > +#ifdef CONFIG_ARM64_4K_PAGES > + hugetlb_cma_reserve(PUD_SHIFT - PAGE_SHIFT); > +#endif
arm64_numa_init() calls numa_init() which initializes node_online_map that gets used in hugetlb_cma_reserve() while allocating required CMA size across online nodes.
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
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