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Thu, 6 Jul 2023 08:58:48 +0000 (GMT) From: "Aneesh Kumar K.V" To: linux-mm@kvack.org, akpm@linux-foundation.org, mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com, christophe.leroy@csgroup.eu Cc: Oscar Salvador , Mike Kravetz , Dan Williams , Joao Martins , Catalin Marinas , Muchun Song , Will Deacon , "Aneesh Kumar K.V" Subject: [PATCH v3 04/13] mm/vmemmap: Allow architectures to override how vmemmap optimization works Date: Thu, 6 Jul 2023 14:28:10 +0530 Message-ID: <20230706085819.827761-5-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230706085819.827761-1-aneesh.kumar@linux.ibm.com> References: <20230706085819.827761-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: -Y3c92Zldb-SvzqUci3xDTaBSNS3JySl X-Proofpoint-ORIG-GUID: XdHGGg3j-rkZUsQt9Jwc0XpxflgLdg2K X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-06_05,2023-07-06_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 lowpriorityscore=0 malwarescore=0 impostorscore=0 mlxlogscore=999 bulkscore=0 spamscore=0 adultscore=0 priorityscore=1501 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307060075 X-Rspamd-Queue-Id: 62078A0017 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: 53hzqeabrp9558fxgrgto5crb6ryyuon X-HE-Tag: 1688633947-439591 X-HE-Meta: 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 ts1byih3 Ow/MuQqFGT6DfMXnjhAzMnxlH8S5f1hAm9dbELJ57BYwgYXDqOJeiERhhf2FkKSiCuIogypqDvdU2gJLEdTq77ibEdwYAnrR/chusnktd4+bWwhEH4ZL2TieQqYTKk6l3bi+aaNOHUVfMPlxx41i0T9VU4Cqb3+g2G1g4un5jjS7yeIKAyLoGZQgznX6Tm4+pRQhzbk8vhd/Jvn0uwHY980MIP/f+dh3JN0tUe8vzpc1zvNo= 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: Architectures like powerpc will like to use different page table allocators and mapping mechanisms to implement vmemmap optimization. Similar to vmemmap_populate allow architectures to implement vmemap_populate_compound_pages Signed-off-by: Aneesh Kumar K.V --- mm/sparse-vmemmap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c index a044a130405b..541b3f69a481 100644 --- a/mm/sparse-vmemmap.c +++ b/mm/sparse-vmemmap.c @@ -141,6 +141,7 @@ void __meminit vmemmap_verify(pte_t *pte, int node, start, end - 1); } +#ifndef vmemmap_populate_compound_pages pte_t * __meminit vmemmap_pte_populate(pmd_t *pmd, unsigned long addr, int node, struct vmem_altmap *altmap, struct page *reuse) @@ -446,6 +447,8 @@ static int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn, return 0; } +#endif + struct page * __meminit __populate_section_memmap(unsigned long pfn, unsigned long nr_pages, int nid, struct vmem_altmap *altmap, struct dev_pagemap *pgmap)