From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C852DC61DA4 for ; Thu, 16 Feb 2023 15:07:25 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4PHdbH4511z3f3J for ; Fri, 17 Feb 2023 02:07:23 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=BRtSDGXR; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=a7rYj9i9; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=redhat.com (client-ip=170.10.133.124; helo=us-smtp-delivery-124.mimecast.com; envelope-from=dhowells@redhat.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=BRtSDGXR; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=a7rYj9i9; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4PHdbB2VzTz3cGH for ; Fri, 17 Feb 2023 02:07:16 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1676560033; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=4Zm5Dn7i1p/5BiDzjYElohEtJkvunM7mT3Q22YOMQp4=; b=BRtSDGXRr6OgpRJ6bYIr26yfVXPEBqRTZc31RYcD2kGiEOt+QvKc+3W/uvXS8KMOgCUsAA od3pDTDa+IZS9yqP3+6r+06OStb9tZTNWzp/3n+NmDWspY1dM/w4T84rpL++/ahf+ip5J3 zoijKIVqiL1i7GfdYe8Q6ma2F1IiWfo= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1676560034; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=4Zm5Dn7i1p/5BiDzjYElohEtJkvunM7mT3Q22YOMQp4=; b=a7rYj9i9xct8sIRKgr6ilFD6C6WmyqX+ShTq08cIBZ/CVAeJl6TZuTNA7NdIssyFk8Y0PQ xATJmAd/tv/R7ZmNrwqjT/R+bBSxCrCR2KSRTN+R+NglvpVVpo63qvpghgiqTHOCAeKcPv SV9Dxz5Y0p3bNQdgPbX2RLzViHCVToo= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-6-iIVyHqFbOUyMy5heOHW_ZQ-1; Thu, 16 Feb 2023 10:07:09 -0500 X-MC-Unique: iIVyHqFbOUyMy5heOHW_ZQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 2CAE93C14862; Thu, 16 Feb 2023 15:07:07 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.33.36.24]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4E53A4010E85; Thu, 16 Feb 2023 15:07:05 +0000 (UTC) From: David Howells To: Matthew Wilcox Subject: [PATCH v6 0/2] mm, netfs, fscache: Stop read optimisation when folio removed from pagecache Date: Thu, 16 Feb 2023 15:06:59 +0000 Message-Id: <20230216150701.3654894-1-dhowells@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Christoph Hellwig , linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-erofs@lists.ozlabs.org, Jeff Layton , linux-kernel@vger.kernel.org, David Howells , linux-cachefs@redhat.com, linux-fsdevel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, ceph-devel@vger.kernel.org, linux-ext4@vger.kernel.org, Linus Torvalds , linux-afs@lists.infradead.org Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" Hi Willy, Is this okay by you? You said you wanted to look at the remaining uses of page_has_private(), of which there are then three after these patches, not counting folio_has_private(): arch/s390/kernel/uv.c: if (page_has_private(page)) mm/khugepaged.c: 1 + page_mapcount(page) + page_has_private(page)) { mm/migrate_device.c: extra += 1 + page_has_private(page); -- I've split the folio_has_private()/filemap_release_folio() call pair merging into its own patch, separate from the actual bugfix and pulled out the folio_needs_release() function into mm/internal.h and made filemap_release_folio() use it. I've also got rid of the bit clearances from the network filesystem evict_inode functions as they doesn't seem to be necessary. Note that the last vestiges of try_to_release_page() got swept away, so I rebased and dealt with that. One comment remained, which is removed by the first patch. David Changes: ======== ver #6) - Drop the third patch which removes a duplicate check in vmscan(). ver #5) - Rebased on linus/master. try_to_release_page() has now been entirely replaced by filemap_release_folio(), barring one comment. - Cleaned up some pairs in ext4. ver #4) - Split has_private/release call pairs into own patch. - Moved folio_needs_release() to mm/internal.h and removed open-coded version from filemap_release_folio(). - Don't need to clear AS_RELEASE_ALWAYS in ->evict_inode(). - Added experimental patch to reduce shrink_folio_list(). ver #3) - Fixed mapping_clear_release_always() to use clear_bit() not set_bit(). - Moved a '&&' to the correct line. ver #2) - Rewrote entirely according to Willy's suggestion[1]. Link: https://lore.kernel.org/r/Yk9V/03wgdYi65Lb@casper.infradead.org/ [1] Link: https://lore.kernel.org/r/164928630577.457102.8519251179327601178.stgit@warthog.procyon.org.uk/ # v1 Link: https://lore.kernel.org/r/166844174069.1124521.10890506360974169994.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/166869495238.3720468.4878151409085146764.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/1459152.1669208550@warthog.procyon.org.uk/ # v3 also Link: https://lore.kernel.org/r/166924370539.1772793.13730698360771821317.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/167172131368.2334525.8569808925687731937.stgit@warthog.procyon.org.uk/ # v5 --- %(shortlog)s %(diffstat)s David Howells (2): mm: Merge folio_has_private()/filemap_release_folio() call pairs mm, netfs, fscache: Stop read optimisation when folio removed from pagecache fs/9p/cache.c | 2 ++ fs/afs/internal.h | 2 ++ fs/cachefiles/namei.c | 2 ++ fs/ceph/cache.c | 2 ++ fs/cifs/fscache.c | 2 ++ fs/ext4/move_extent.c | 12 ++++-------- fs/splice.c | 3 +-- include/linux/pagemap.h | 16 ++++++++++++++++ mm/filemap.c | 2 ++ mm/huge_memory.c | 3 +-- mm/internal.h | 11 +++++++++++ mm/khugepaged.c | 3 +-- mm/memory-failure.c | 8 +++----- mm/migrate.c | 3 +-- mm/truncate.c | 6 ++---- mm/vmscan.c | 8 ++++---- 16 files changed, 56 insertions(+), 29 deletions(-)