From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1907A55E49 for ; Wed, 5 Jun 2024 03:31:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717558299; cv=none; b=a50QZ+v1rcvkezUJHY7+Brpfg1189zd+4yIHHkCCvWt08kNzK3xwFJstiKo6tg9k0ZSNOGv8yWEBYyTnVkAtRsSs+sgXuWvcRkvKvE5TsAevGbW8pzHmb0RjoBp/ZZnbLMcgBgw4aJjJEb4tuurLnzcXMBbBsIjF4TWkbGYeYCg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717558299; c=relaxed/simple; bh=D+rONpxmViYhT7px9GQT75UhL/o2A2/gqE8Jpp7Zlns=; h=Date:To:From:Subject:Message-Id; b=l+4xbd4l0z04lvKMLTdXXpK7SVJulMIPHkTzTnwoImf8Z7z6lIggBQoEhLltcgwFNeHDW0wlaqiRg8WosgH7HbLgzx/4S1PQ7SvPz3UpHB/umhcnc0tQqGerDYTmgzBjTEH+D+gvUy/3+Uxdn+J5ziWsseQRaHI3YbwGKEuJum0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=SJugIuZF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="SJugIuZF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B24CC32781; Wed, 5 Jun 2024 03:31:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1717558298; bh=D+rONpxmViYhT7px9GQT75UhL/o2A2/gqE8Jpp7Zlns=; h=Date:To:From:Subject:From; b=SJugIuZF+AspdFTNyQt0M2SVpB1wWOzsuWmDabjiKUOuVlnPRTqhPGwRm48SOwyH+ OdmxOR3qzakDDoMkzSe2SMmJ5VBCo37UGUKox0l8W1B1Fd9PZmR1OuqEcxJ7ZCHjgC w0/NviZ3UiMw4QngqdPw4ZZAEuL5Pp6erM9IRr5c= Date: Tue, 04 Jun 2024 20:31:38 -0700 To: mm-commits@vger.kernel.org,willy@infradead.org,vishal.moola@gmail.com,tony.luck@intel.com,osalvador@suse.de,nao.horiguchi@gmail.com,muchun.song@linux.dev,linmiaohe@huawei.com,jiaqiyan@google.com,jglisse@redhat.com,jane.chu@oracle.com,ioworker0@gmail.com,hughd@google.com,david@redhat.com,bcrl@kvack.org,apopple@nvidia.com,wangkefeng.wang@huawei.com,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-add-folio_mc_copy.patch added to mm-unstable branch Message-Id: <20240605033138.9B24CC32781@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm: add folio_mc_copy() has been added to the -mm mm-unstable branch. Its filename is mm-add-folio_mc_copy.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-add-folio_mc_copy.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Kefeng Wang Subject: mm: add folio_mc_copy() Date: Mon, 3 Jun 2024 17:24:35 +0800 Add a #MC variant of folio_copy() which uses copy_mc_highpage() to support #MC handled during folio copy, it will be used in folio migration soon. Link: https://lkml.kernel.org/r/20240603092439.3360652-3-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang Cc: Alistair Popple Cc: Benjamin LaHaise Cc: David Hildenbrand Cc: Hugh Dickins Cc: Jane Chu Cc: Jérôme Glisse Cc: Jiaqi Yan Cc: Lance Yang Cc: Matthew Wilcox (Oracle) Cc: Miaohe Lin Cc: Muchun Song Cc: Naoya Horiguchi Cc: Oscar Salvador Cc: Tony Luck Cc: Vishal Moola (Oracle) Signed-off-by: Andrew Morton --- include/linux/mm.h | 1 + mm/util.c | 17 +++++++++++++++++ 2 files changed, 18 insertions(+) --- a/include/linux/mm.h~mm-add-folio_mc_copy +++ a/include/linux/mm.h @@ -1311,6 +1311,7 @@ void put_pages_list(struct list_head *pa void split_page(struct page *page, unsigned int order); void folio_copy(struct folio *dst, struct folio *src); +int folio_mc_copy(struct folio *dst, struct folio *src); unsigned long nr_free_buffer_pages(void); --- a/mm/util.c~mm-add-folio_mc_copy +++ a/mm/util.c @@ -828,6 +828,23 @@ void folio_copy(struct folio *dst, struc } EXPORT_SYMBOL(folio_copy); +int folio_mc_copy(struct folio *dst, struct folio *src) +{ + long nr = folio_nr_pages(src); + long i = 0; + + for (;;) { + if (copy_mc_highpage(folio_page(dst, i), folio_page(src, i))) + return -EHWPOISON; + if (++i == nr) + break; + cond_resched(); + } + + return 0; +} +EXPORT_SYMBOL(folio_mc_copy); + int sysctl_overcommit_memory __read_mostly = OVERCOMMIT_GUESS; int sysctl_overcommit_ratio __read_mostly = 50; unsigned long sysctl_overcommit_kbytes __read_mostly; _ Patches currently in -mm which might be from wangkefeng.wang@huawei.com are mm-add-folio_alloc_mpol.patch mm-mempolicy-use-folio_alloc_mpol_noprof-in-vma_alloc_folio_noprof.patch mm-mempolicy-use-folio_alloc_mpol-in-alloc_migration_target_by_mpol.patch mm-shmem-use-folio_alloc_mpol-in-shmem_alloc_folio.patch mm-refactor-folio_undo_large_rmappable.patch mm-memcontrol-remove-page_memcg.patch rmap-remove-define_page_vma_walk.patch mm-migrate-simplify-__buffer_migrate_folio.patch mm-migrate_device-use-a-newfolio-in-__migrate_device_pages.patch mm-migrate_device-unify-migrate-folio-for-migrate_sync_no_copy.patch mm-migrate-remove-migrate_folio_extra.patch mm-remove-migrate_sync_no_copy-mode.patch fs-proc-task_mmu-use-folio-api-in-pte_is_pinned.patch mm-remove-page_maybe_dma_pinned.patch fb_defio-use-a-folio-in-fb_deferred_io_work.patch mm-remove-page_mkclean.patch mm-move-memory_failure_queue-into-copy_mc__highpage.patch mm-add-folio_mc_copy.patch mm-migrate-split-folio_migrate_mapping.patch mm-migrate-support-poisoned-recover-from-migrate-folio.patch fs-hugetlbfs-support-poison-recover-from-hugetlbfs_migrate_folio.patch mm-migrate-remove-folio_migrate_copy.patch