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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9583DC433F5 for ; Wed, 10 Nov 2021 17:38:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7646D6124C for ; Wed, 10 Nov 2021 17:38:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232318AbhKJRlk (ORCPT ); Wed, 10 Nov 2021 12:41:40 -0500 Received: from smtp-out2.suse.de ([195.135.220.29]:36358 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230230AbhKJRli (ORCPT ); Wed, 10 Nov 2021 12:41:38 -0500 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 369661FD47; Wed, 10 Nov 2021 17:38:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1636565930; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=qXKuDVk/9tnJzkq1IP49R4NmxO9QDtAcFtG7RTfHNZ0=; b=FTKwF2ipVVAbgWyTgDwAZ2CSEBvmDuoZYerxPQnSTNmUtyb/G0drNL35UQdLaURPoY4eaF IKcUMrOfl0Q5PEzJl1+mpZZzOuP75WwbjRBFhxkTGdepB8FEciSNFCBBXfg7JCxVwjZ0aX wvGoNfMRSyNz9uPuYatwmMgCgu7bnpI= Received: from ds.suse.cz (ds.suse.cz [10.100.12.205]) by relay2.suse.de (Postfix) with ESMTP id 2EB1BA3B84; Wed, 10 Nov 2021 17:38:50 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 7FA48DA799; Wed, 10 Nov 2021 18:38:10 +0100 (CET) From: David Sterba To: torvalds@linux-foundation.org Cc: David Sterba , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [GIT PULL] Btrfs update, part 2 Date: Wed, 10 Nov 2021 18:38:09 +0100 Message-Id: X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, here's a separate fix that depends on changes that landed last week (the iomap + iov_iter merged as c03098d4b9ad). The fix itself is for a deadlock when direct/buffered IO is done on a mmaped file and a fault happens (details in the patch). There's a fstest generic/647 that triggers the problem and makes testing hard. No merge conflicts. Please pull, thanks. ---------------------------------------------------------------- The following changes since commit c03098d4b9ad76bca2966a8769dcfe59f7f85103: Merge tag 'gfs2-v5.15-rc5-mmap-fault' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 (2021-11-02 12:25:03 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-5.16-deadlock-fix-tag for you to fetch changes up to 51bd9563b6783de8315f38f7baed949e77c42311: btrfs: fix deadlock due to page faults during direct IO reads and writes (2021-11-09 13:46:07 +0100) ---------------------------------------------------------------- Filipe Manana (1): btrfs: fix deadlock due to page faults during direct IO reads and writes fs/btrfs/file.c | 139 +++++++++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 123 insertions(+), 16 deletions(-)