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 187C11E51F1 for ; Sun, 17 Aug 2025 18:54:47 +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=1755456888; cv=none; b=YWQ+e2iLo/X/mPhY0vpeqxvZ0IF0WOJvs9yCZiibyZ/4Po9LXf5m1QH2du1aysdXiNdzD3GssubVubHHOGzkt2r7yhZ+BmEJeUm3wXpGkmpUtUPp75noq0vtdx66gJwiV7z7aWWrO4KGg6ralY9AfUEKHUG9gEbOAVeleQ3WqI4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755456888; c=relaxed/simple; bh=2tNlV/SJqlrtfwB5q/UdJiHpr1E1uRZX6y5x/MlVf3g=; h=Date:To:From:Subject:Message-Id; b=Ek+atPAbyVeO66VgJpwtmqqsVyVM7liIubNxbR/W+PP4CfZ+pBXLKELa/5LMHwC3ZzyR118LMUDydX+Ug6bb1cfPZ6myrurY4CZGR5tujP8nTeE19eLiR1sruPJI73+xzCysVaHR2RbdJFd09NabzVHA7q22Rg1h++e/JAg+8FQ= 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=KymBAFiT; 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="KymBAFiT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D1C3C4CEEB; Sun, 17 Aug 2025 18:54:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1755456887; bh=2tNlV/SJqlrtfwB5q/UdJiHpr1E1uRZX6y5x/MlVf3g=; h=Date:To:From:Subject:From; b=KymBAFiTlZcZiNStemmkDOyyOBKHWCM3hN87jY+Hjf4CU6i+BYS+ODT7elwWfxsXZ 6gsFx16TrkY2V+9o1mp/GRomT8tRnS/2MvrxZ5RGVXoa0HPXL1P4qO+vuqHvjijAfv Q4LkBPAhimjOssYBryRu/HqnjfX5Q/e10355pqd4= Date: Sun, 17 Aug 2025 11:54:46 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,shakeel.butt@linux.dev,willy@infradead.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-reimplement-folio_is_device_private.patch added to mm-new branch Message-Id: <20250817185447.6D1C3C4CEEB@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm: reimplement folio_is_device_private() has been added to the -mm mm-new branch. Its filename is mm-reimplement-folio_is_device_private.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-reimplement-folio_is_device_private.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. 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: mm: reimplement folio_is_device_private() Date: Tue, 5 Aug 2025 18:22:58 +0100 For callers of folio_is_device_private(), we save a folio->page->folio conversion. Callers of is_device_private_page() simply move the conversion of page->folio from the implementation of page_pgmap() to is_device_private_page(). Link: https://lkml.kernel.org/r/20250805172307.1302730-9-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Zi Yan Cc: Shakeel Butt Signed-off-by: Andrew Morton --- include/linux/memremap.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) --- a/include/linux/memremap.h~mm-reimplement-folio_is_device_private +++ a/include/linux/memremap.h @@ -157,16 +157,17 @@ static inline unsigned long pgmap_vmemma return 1 << pgmap->vmemmap_shift; } -static inline bool is_device_private_page(const struct page *page) +static inline bool folio_is_device_private(const struct folio *folio) { return IS_ENABLED(CONFIG_DEVICE_PRIVATE) && - is_zone_device_page(page) && - page_pgmap(page)->type == MEMORY_DEVICE_PRIVATE; + folio_is_zone_device(folio) && + folio->pgmap->type == MEMORY_DEVICE_PRIVATE; } -static inline bool folio_is_device_private(const struct folio *folio) +static inline bool is_device_private_page(const struct page *page) { - return is_device_private_page(&folio->page); + return IS_ENABLED(CONFIG_DEVICE_PRIVATE) && + folio_is_device_private(page_folio(page)); } static inline bool is_pci_p2pdma_page(const struct page *page) _ Patches currently in -mm which might be from willy@infradead.org are mm-introduce-memdesc_flags_t.patch mm-convert-page_to_section-to-memdesc_section.patch mm-introduce-memdesc_nid.patch mm-introduce-memdesc_zonenum.patch slab-use-memdesc_flags_t.patch slab-use-memdesc_nid.patch mm-introduce-memdesc_is_zone_device.patch mm-reimplement-folio_is_device_private.patch mm-reimplement-folio_is_device_coherent.patch mm-reimplement-folio_is_fsdax.patch mm-add-folio_is_pci_p2pdma.patch