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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D5AF5C83003 for ; Fri, 9 Jun 2023 00:52:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237226AbjFIAwM (ORCPT ); Thu, 8 Jun 2023 20:52:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234560AbjFIAwI (ORCPT ); Thu, 8 Jun 2023 20:52:08 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8B7612136; Thu, 8 Jun 2023 17:52:07 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1D5AE6205D; Fri, 9 Jun 2023 00:52:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 74779C433EF; Fri, 9 Jun 2023 00:52:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1686271926; bh=taEWEHnfM5KSbeFm8Zv9kHCH7Ky0+Fb8BX/HvqXGHls=; h=Date:To:From:Subject:From; b=Q1Yr4nz4MkX+Tk1m+kTREgVtBkmWN8yIhr68skBnh0JHXb15Y6fcYSXzEa6vgGWx5 SLhAkpY9KhbVeykad9DuOodx52xd5PH6fyHAThwxNR2Pm+n3qZ3eFImUU37cSLgh3H RVZiPkg0VOsDD9XefeKDK0h55jBrPs08CF0jufeM= Date: Thu, 08 Jun 2023 17:52:05 -0700 To: mm-commits@vger.kernel.org, stable@vger.kernel.org, dhowells@redhat.com, vishal.moola@gmail.com, akpm@linux-foundation.org From: Andrew Morton Subject: + afs-fix-dangling-folio-ref-counts-in-writeback.patch added to mm-hotfixes-unstable branch Message-Id: <20230609005206.74779C433EF@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: afs: fix dangling folio ref counts in writeback has been added to the -mm mm-hotfixes-unstable branch. Its filename is afs-fix-dangling-folio-ref-counts-in-writeback.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/afs-fix-dangling-folio-ref-counts-in-writeback.patch This patch will later appear in the mm-hotfixes-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: "Vishal Moola (Oracle)" Subject: afs: fix dangling folio ref counts in writeback Date: Wed, 7 Jun 2023 13:41:19 -0700 Commit acc8d8588cb7 converted afs_writepages_region() to write back a folio batch. If writeback needs rescheduling, the function exits without dropping the references to the folios in fbatch. This patch fixes that. Link: https://lkml.kernel.org/r/20230607204120.89416-1-vishal.moola@gmail.com Fixes: acc8d8588cb7 ("afs: convert afs_writepages_region() to use filemap_get_folios_tag()") Signed-off-by: Vishal Moola (Oracle) Cc: David Howells Cc: Signed-off-by: Andrew Morton --- fs/afs/write.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/afs/write.c~afs-fix-dangling-folio-ref-counts-in-writeback +++ a/fs/afs/write.c @@ -764,6 +764,7 @@ static int afs_writepages_region(struct if (skips >= 5 || need_resched()) { *_next = start; _leave(" = 0 [%llx]", *_next); + folio_batch_release(&fbatch); return 0; } skips++; _ Patches currently in -mm which might be from vishal.moola@gmail.com are afs-fix-dangling-folio-ref-counts-in-writeback.patch afs-fix-waiting-for-writeback-then-skipping-folio.patch