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Fri, 16 Jun 2023 11:09:35 +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 v2 09/16] mm/vmemmap: Allow architectures to override how vmemmap optimization works Date: Fri, 16 Jun 2023 16:38:19 +0530 Message-Id: <20230616110826.344417-10-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230616110826.344417-1-aneesh.kumar@linux.ibm.com> References: <20230616110826.344417-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: GMpZt1GP3KN7acv2igOUSqdfrjzguVxv X-Proofpoint-ORIG-GUID: qZv9AyAbTlUNYM2GAQgBNx4vAn01YRIw 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=2023-06-16_08,2023-06-16_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 adultscore=0 lowpriorityscore=0 clxscore=1015 mlxlogscore=999 bulkscore=0 impostorscore=0 priorityscore=1501 suspectscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306160104 X-Rspamd-Queue-Id: ACF0D8001C X-Rspam-User: X-Stat-Signature: 9o4t3ts885ahjd3jnc7ckio1gb8kziuk X-Rspamd-Server: rspam01 X-HE-Tag: 1686915895-206738 X-HE-Meta: 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 wV4lU8J7 QnEI5UBCGWPVD/h2bHTvnRlPQdbfbLVVMDndvBSglzxmTSGtheYYYXRl+PxUZ+aVC06DGjqBE5iKDIu0tVkHDLpiOTo3ZVZcLPb0bqupZU5OiXVABXrtHShAXhmTXHdD2AGOJyKI3SBpogAM= 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 10d73a0dfcec..0b83706c08fd 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)