Messages in this thread | | | From | "Song Bao Hua (Barry Song)" <> | Subject | RE: [PATCH] arm64: mm: free unused memmap for sparse memory model that define VMEMMAP | Date | Wed, 8 Jul 2020 07:18:39 +0000 |
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> -----Original Message----- > From: liwei (CM) > Sent: Wednesday, July 8, 2020 1:56 PM > To: catalin.marinas@arm.com; will@kernel.org > Cc: liwei (CM) <liwei213@huawei.com>; fengbaopeng > <fengbaopeng2@hisilicon.com>; nsaenzjulienne@suse.de; > steve.capper@arm.com; rppt@linux.ibm.com; Song Bao Hua (Barry Song) > <song.bao.hua@hisilicon.com>; linux-arm-kernel@lists.infradead.org; > linux-kernel@vger.kernel.org; sujunfei <sujunfei2@hisilicon.com> > Subject: [PATCH] arm64: mm: free unused memmap for sparse memory model > that define VMEMMAP > > For the memory hole, sparse memory model that define > SPARSEMEM_VMEMMAP do not free the reserved memory for the page map, > this patch do it.
Hello Wei, Just curious if this patch breaks MEMORY_HOTPLUG?
> > Signed-off-by: Wei Li <liwei213@huawei.com> > Signed-off-by: Chen Feng <puck.chen@hisilicon.com> > Signed-off-by: Xia Qing <saberlily.xia@hisilicon.com> > --- > arch/arm64/mm/init.c | 81 > +++++++++++++++++++++++++++++++++++++++++++++------- > 1 file changed, 71 insertions(+), 10 deletions(-) > > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index > 1e93cfc7c47a..d1b56b47d5ba 100644 > --- a/arch/arm64/mm/init.c > +++ b/arch/arm64/mm/init.c > @@ -441,7 +441,48 @@ void __init bootmem_init(void) > memblock_dump_all(); > } >
Thanks Barry
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