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Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pBjgC-00BkaR-Ld; Sat, 31 Dec 2022 21:46:12 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, Hugh Dickins Subject: [PATCH 00/22] Get rid of first tail page fields Date: Sat, 31 Dec 2022 21:45:48 +0000 Message-Id: <20221231214610.2800682-1-willy@infradead.org> X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 17FB414000A X-Stat-Signature: j9ccacfkbenw3p9pci6m78zdfhiunpub X-HE-Tag: 1672523196-856789 X-HE-Meta: U2FsdGVkX1/0VVs51vTRa8p3oLw0mogDGrQD9W6/eup1BTGTxeqbFztTyg/XxeJ1mrN2nzhHwwxzNjY7q5XVcduZHVJEYBPlWK6OIDMVn1Lh8AMdLeSbgn2dnafBNUr001SZ4/Ada8oaE/YHto8n80FYtENg/Zfgr2xQFWp5kQGxEluKE50V7BneOVo28f2eFJg3fIYV2cPVVLukbRfrXzycqjjvxc7CJ+Fuj7M/Cd8ekooYF0VdzYFpsbNWMA7vbh+d/+aQf9CzS9VER4BZ2/lyCxz8OcQGqaOvtzs0KfMg7U1CychW7YngZm6ZzDSJx+S/uus6cATfZ1qlsMVa7LhUYjJgABkFnbr99i/n/9oOvlN8akHiTx5g1x4zTDk5Px04vCjno8q8WuuTWmTTZrhG9UcutVt0nspVcQmGohp5JRjgj0CkTuFyUDgwAc3Z1yV32JI2OKEC9yp2DTd6k13AM3MrAb6VlDHcyb8mcfoBuGzoONru5rkPPKqY0YAYbYbgGZAFvXo17Sls0XE/bckIFmG4J1ECXMvmMfhl72JRyw0ACDzRixBjJpJkZ7IGI/s5TlOOtIBEdSOX3+O5yW4HhYyCJRYO8uzd+31oHAYK9RqjF6hhjh1CYgnyKDMb9ONiU1CMwhygkJ5Nc7/oeFBYUxz9/9Xz8nnGof7QJGSAJzYGhX+iyW/WvYysguzM6AObENkLP2I0DmFo9UxKU1Zh1s80lYIAEWC0ZG/9daNQ5RYQK9QasiClHKR+Kh4kO3zywR7lEllqKg2Qh5aWVkR3Sm0gp6HUWDV+EvKm835J8ZAKHspiucf60FsKmJ4Z6HY0XWMsshJVaqhGqFGdZ1+oNXd8Pw4LIqpkQo4gFsLQvKD7HRWGfiJERuu+U3YmjtRiuuxYmH8= 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: Continue the shrinkage of the struct page definition by getting rid of the 'first tail page' fields. I originally did this patch set before Hugh's rewrite of the subpages_mapcount, so it needed substantial updates; hope I didn't miss anything. I hope you like the new names for compound_mapcount and subpages_mapcount. Matthew Wilcox (Oracle) (22): mm: Remove folio_pincount_ptr() and head_compound_pincount() mm: Convert head_subpages_mapcount() into folio_nr_pages_mapped() doc: Clarify refcount section by referring to folios & pages mm: Convert total_compound_mapcount() to folio_total_mapcount() mm: Convert page_remove_rmap() to use a folio internally mm: Convert page_add_anon_rmap() to use a folio internally mm: Convert page_add_file_rmap() to use a folio internally mm: Add folio_add_new_anon_rmap() page_alloc: Use folio fields directly mm: Use a folio in hugepage_add_anon_rmap() and hugepage_add_new_anon_rmap() mm: Use entire_mapcount in __page_dup_rmap() mm/debug: Remove call to head_compound_mapcount() hugetlb: Remove uses of folio_mapcount_ptr mm: Convert page_mapcount() to use folio_entire_mapcount() mm: Remove head_compound_mapcount() and _ptr functions mm: Reimplement compound_order() mm: Reimplement compound_nr() mm: Convert set_compound_page_dtor() and set_compound_order() to folios mm: Convert is_transparent_hugepage() to use a folio mm: Convert destroy_large_folio() to use folio_dtor hugetlb: Remove uses of compound_dtor and compound_nr mm: Remove 'First tail page' members from struct page Documentation/core-api/pin_user_pages.rst | 29 ++-- Documentation/mm/transhuge.rst | 18 +-- include/linux/mm.h | 141 ++++++++---------- include/linux/mm_types.h | 53 +------ include/linux/rmap.h | 11 +- kernel/crash_core.c | 4 +- mm/debug.c | 8 +- mm/folio-compat.c | 8 ++ mm/gup.c | 8 +- mm/huge_memory.c | 12 +- mm/hugetlb.c | 24 ++-- mm/internal.h | 18 +++ mm/page_alloc.c | 23 +-- mm/rmap.c | 167 +++++++++++----------- 14 files changed, 250 insertions(+), 274 deletions(-) -- 2.35.1