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From: Muchun Song In-Reply-To: <20231019023113.345257-4-mike.kravetz@oracle.com> Date: Thu, 19 Oct 2023 11:12:24 +0800 Cc: Linux-MM , LKML , Muchun Song , Joao Martins , Konrad Dybcio , Oscar Salvador , David Hildenbrand , Miaohe Lin , David Rientjes , Anshuman Khandual , Naoya Horiguchi , Barry Song <21cnbao@gmail.com>, Michal Hocko , Matthew Wilcox , Xiongchun Duan , Sergey Senozhatsky , Usama Arif , Andrew Morton Content-Transfer-Encoding: 7bit Message-Id: References: <20231019023113.345257-1-mike.kravetz@oracle.com> <20231019023113.345257-4-mike.kravetz@oracle.com> To: Mike Kravetz X-Migadu-Flow: FLOW_OUT X-Stat-Signature: 894yxjdc8isqq5j1ec4f9gbmega5ci1m X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: B15BFC001C X-Rspam-User: X-HE-Tag: 1697685182-476961 X-HE-Meta: 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 OwnLzja5 hOsXOQb6KKq6vc8B9xpz/QRvLBkVGkYZr2yev637j5atmPrm1YhMjAWEgy0KIgFckLfSDscwPYDhzB8cClYOrXDf4SsZjvJA09JyIDSwAsTUXxvCpKrjTH4CFTc68i3JQrloheUyYap8+XKBgXqx3a0IRWxP+6oZqnXdzF5SNehICybpmgYzOR00O+Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: > On Oct 19, 2023, at 10:31, Mike Kravetz wrote: > > When adding hugetlb pages to the pool, we first create a list of the > allocated pages before adding to the pool. Pass this list of pages to a > new routine hugetlb_vmemmap_optimize_folios() for vmemmap optimization. > > Due to significant differences in vmemmmap initialization for bootmem > allocated hugetlb pages, a new routine prep_and_add_bootmem_folios > is created. > > We also modify the routine vmemmap_should_optimize() to check for pages > that are already optimized. There are code paths that might request > vmemmap optimization twice and we want to make sure this is not > attempted. > > Signed-off-by: Mike Kravetz Reviewed-by: Muchun Song Thanks.