From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 06208146D5A for ; Mon, 21 Sep 2026 04:09:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789963789; cv=none; b=khGUYuTdMAqL1YGIU1tHTJlW7rbDUzYlcZAEN8q0rJ9H+7dkyF2MgpPqwKjXDu6GnyrDFvxaLeScGlDPbFdiJMt71BduO0u72xdcoHZMRqWwyXHu+R5DuSPGAd6hdpKo4rNUYctnAAOt91trN0wm80yot/BozshB5u4u9401p+Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789963789; c=relaxed/simple; bh=MWJj8RFkvU01lDCyNykATXSQpI8oKLOKeO2o/2QIIAI=; h=Date:To:From:Subject:Message-Id; b=X8fjd8o7l2mNiFbtFTSa23T7Xw2rxi0vFW9Aympf2BvIEAAlmEcAoXWyCw4iWgm8RSpDXNoHLDqqHLptOrOKWF2cwMb1j12IBkd06PYsJXj2LZnNz3MRumXScXaqABIgwQfXeHkrJ90TvgszY6qq0hpKcjPp6dosFtqEX0OkLW8= 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=Wo4Jyowl; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Wo4Jyowl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 755381F000FF; Mon, 21 Sep 2026 04:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1789963787; bh=rdIZjXwFAsISQm0ahREYoArNx3jAS4F+yd584Rwq9r0=; h=Date:To:From:Subject; b=Wo4JyowlezDBgTbebe1ur21gBJ3pA3T4uwizI8BmMEDXGesyLaaOPIx7KII+rhhrr MCqE/sqpWqjtoJKvSQE1ZmliNzgmBTKl9E0wFvpAFOQk7w/dSO5nVy3dojzvTVWI2U b2WmsUPTasfOQHmHcT3jgIi4b9CH7HoAQcXpWBCU= Date: Sun, 20 Sep 2026 21:09:47 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,akpm@linux-foundation.org From: Andrew Morton Subject: + f2fs-stop-using-pg_private.patch added to mm-unstable branch Message-Id: <20260921040947.755381F000FF@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: f2fs: stop using PG_private has been added to the -mm mm-unstable branch. Its filename is f2fs-stop-using-pg_private.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/f2fs-stop-using-pg_private.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 various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Zi Yan Subject: f2fs: stop using PG_private Date: Sun, 20 Sep 2026 22:28:02 -0400 f2fs sets its PAGE_PRIVATE_* flags in page->private and checking page->private != NULL is equivalent to checking PG_private. Change PagePrivate() to page_private(). Meanwhile, in set_page_private_##name(), page->private is first set to 0/NULL before an PAGE_PRIVATE_* flag is set, but it can cause confusion when PG_private is removed and page->private != NULL is used instead. Change it to initialize page->private to PAGE_PRIVATE_NOT_POINTER instead and retain the original semantics. It prepares for a future commit that removes PG_private. No functional change intended. Assisted-by: LLM Link: https://lore.kernel.org/20260920-remove-pg_private-v5-6-bb68b6a21869@nvidia.com Signed-off-by: Zi Yan Signed-off-by: Andrew Morton Acked-by: Usama Arif Acked-by: Chao Yu Reviewed-by: David Hildenbrand (Arm) Cc: Jaegeuk Kim --- fs/f2fs/f2fs.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/fs/f2fs/f2fs.h~f2fs-stop-using-pg_private +++ a/fs/f2fs/f2fs.h @@ -2691,7 +2691,7 @@ static inline bool folio_test_f2fs_##nam } \ static inline bool page_private_##name(struct page *page) \ { \ - return PagePrivate(page) && \ + return page_private(page) && \ test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \ test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \ } @@ -2710,9 +2710,9 @@ static inline void folio_set_f2fs_##name } \ static inline void set_page_private_##name(struct page *page) \ { \ - if (!PagePrivate(page)) \ - attach_page_private(page, (void *)0); \ - set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \ + if (!page_private(page)) \ + attach_page_private(page, \ + (void *)BIT(PAGE_PRIVATE_NOT_POINTER)); \ set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \ } _ Patches currently in -mm which might be from ziy@nvidia.com are mm-zsmalloc-replace-pg_private-with-pointer-comparison.patch perf-ring_buffer-stop-using-pg_private-as-aux-page-high-order-marker.patch xen-grant-table-stop-setting-pg_private-on-pages-for-grant-mapping.patch fscrypt-stop-setting-pg_private-on-bounce-page.patch mm-hugetlb-use-direct-assignment-instead-of-folio_change_private.patch f2fs-stop-using-pg_private.patch f2fs-convert-the-private-flag-helpers-to-folio-only.patch erofs-mm-pagemap-add-readahead_folio_last-to-avoid-folio-private.patch erofs-use-folio_attach-detach_private-instead-of-direct-assignment.patch mm-page-flags-check-page-folio-private-instead-of-pg_private.patch treewide-remove-folio_set-clear_private-usage.patch ceph-replace-pageprivate-with-page_private.patch treewide-remove-pageprivate-and-pg_private-from-comments-and-docs.patch mm-page-flags-remove-pg_private.patch usb-gadgetfs-do-not-warn-about-excessively-large-memory-allocations.patch