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 0482C58128 for ; Thu, 11 Jan 2024 20:32:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="IYcHRc8S" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF1D8C43390; Thu, 11 Jan 2024 20:32:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1705005155; bh=HdJIO1KcUFQWVob/4yq/O2+EGw5rRNPQnd3cmX9C9X4=; h=Date:To:From:Subject:From; b=IYcHRc8SyhQwBYreZvhafRtd/IWk2VWv/On5xxAnFe7k40eGdNZUMfM3sLiXwf5NY TB2/ZwS9ZRSmzZMsBY55azXG+SCB0DgGfhZla7YRGeIDhljjU32wSkERPJY/pXkPT0 +vn7X2cENfthghDO+k6Z5f5tlsFJK84olmDasLdk= Date: Thu, 11 Jan 2024 12:32:35 -0800 To: mm-commits@vger.kernel.org,wangkefeng.wang@huawei.com,david@redhat.com,willy@infradead.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mprotect-use-pfn_swap_entry_folio.patch added to mm-unstable branch Message-Id: <20240111203235.BF1D8C43390@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mprotect: use pfn_swap_entry_folio has been added to the -mm mm-unstable branch. Its filename is mprotect-use-pfn_swap_entry_folio.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mprotect-use-pfn_swap_entry_folio.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: "Matthew Wilcox (Oracle)" Subject: mprotect: use pfn_swap_entry_folio Date: Thu, 11 Jan 2024 15:24:22 +0000 We only want to know whether the folio is anonymous, so use pfn_swap_entry_folio() and save a call to compound_head(). Link: https://lkml.kernel.org/r/20240111152429.3374566-4-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Cc: David Hildenbrand Cc: Kefeng Wang Signed-off-by: Andrew Morton --- mm/mprotect.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/mprotect.c~mprotect-use-pfn_swap_entry_folio +++ a/mm/mprotect.c @@ -198,13 +198,13 @@ static long change_pte_range(struct mmu_ pte_t newpte; if (is_writable_migration_entry(entry)) { - struct page *page = pfn_swap_entry_to_page(entry); + struct folio *folio = pfn_swap_entry_folio(entry); /* * A protection check is difficult so * just be safe and disable write */ - if (PageAnon(page)) + if (folio_test_anon(folio)) entry = make_readable_exclusive_migration_entry( swp_offset(entry)); else _ Patches currently in -mm which might be from willy@infradead.org are memcg-convert-mem_cgroup_move_charge_pte_range-to-use-a-folio.patch memcg-return-the-folio-in-union-mc_target.patch memcg-use-a-folio-in-get_mctgt_type.patch memcg-use-a-folio-in-get_mctgt_type_thp.patch mm-add-pfn_swap_entry_folio.patch proc-use-pfn_swap_entry_folio-where-obvious.patch mprotect-use-pfn_swap_entry_folio.patch bounds-support-non-power-of-two-config_nr_cpus.patch