From patchwork Wed Dec 2 19:50:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josef Bacik X-Patchwork-Id: 11946891 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E620C64E7C for ; Wed, 2 Dec 2020 19:52:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37764221FA for ; Wed, 2 Dec 2020 19:52:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727845AbgLBTv7 (ORCPT ); Wed, 2 Dec 2020 14:51:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36522 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726112AbgLBTv7 (ORCPT ); Wed, 2 Dec 2020 14:51:59 -0500 Received: from mail-qv1-xf43.google.com (mail-qv1-xf43.google.com [IPv6:2607:f8b0:4864:20::f43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0742FC0613D6 for ; Wed, 2 Dec 2020 11:51:19 -0800 (PST) Received: by mail-qv1-xf43.google.com with SMTP id y11so1299855qvu.10 for ; Wed, 02 Dec 2020 11:51:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=ljUV3+4q56H95g8ABu7lDvHi0HAOTzW5SqlwymD4DP8=; b=rwXDYb1kMKU+HyeIUBhharRdqW8rr1KAyWIuGfp86TkFqk0UgGfL4oAvvdh8PL+utF bz2PpTzD8saQHGq7Smo+c2bC7/VtSN4UMmwL79f9ZdDL6b7J86iarNTQyCAC+DPuFPyV YBkzwNVhvzSt6uBloR23+fKPLOSuGGNtqI4/Mw0KGQBEzQohUGeLN2qqdMVq0m/OPPIp GGVd2SjBsgDtPqCQFmelhrlZGdwoDjqTBWmZ4372OxVScyjnKtgmw6qLNbh99HlTOvm1 BQlXolXcd3IlklA1smwz1vUT6vj8bLh4G4Cwjk4uf/fuLqSzWhY3DE0KcOOIRrtiRdMn LiPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ljUV3+4q56H95g8ABu7lDvHi0HAOTzW5SqlwymD4DP8=; b=Lh5yfEDR7bmT1Z1L142CUMjPzVjQgRlNw0+UO8nL9LHJcyS/sQEAtTGij6knGe6WnL yIsTAjtvW7/qX04p0nhSt3QDkAt+Xgqb6wYsEArg7Gl2BAqhIbUoA5vAlU7XZcrQNYjf PkljcRJibjEOjayxbnJENYf4Nl1DwJq0Z86G4PTjZsZ6pnaGrUIiWS5MjO6nr2fvNOR4 JeMZ6VUneTaaAH0WmiOmlJ+ns+PI0ocBv2Ndt4nNmoBCrD8f/pgbQ5ZA0TXf2gkINaNv jvYp1v77PgP7bXiskPlsuk6swkXgymsxfv+Vjc4C5xGuNClSOfpYerRQErpDcfWpKE5f BfOA== X-Gm-Message-State: AOAM530dqPXmUx4zIS+P7caLw3CMltOx3jZcfKpAoUn+zvPbmgsHPEg2 Fecq13yq5aLZBLvfHKFEK2n5raB3cTj1nA== X-Google-Smtp-Source: ABdhPJxMWE3t01FptcqjuOs5FWyJC3+pGSXkER3u0CmavvPIUf/M2jYp+RkQ1IXKBIpSouYV1PLcgw== X-Received: by 2002:ad4:524b:: with SMTP id s11mr4456083qvq.3.1606938677822; Wed, 02 Dec 2020 11:51:17 -0800 (PST) Received: from localhost (cpe-174-109-172-136.nc.res.rr.com. [174.109.172.136]) by smtp.gmail.com with ESMTPSA id d66sm2921797qke.132.2020.12.02.11.51.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Dec 2020 11:51:17 -0800 (PST) From: Josef Bacik To: linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: [PATCH v3 02/54] btrfs: allow error injection for btrfs_search_slot and btrfs_cow_block Date: Wed, 2 Dec 2020 14:50:20 -0500 Message-Id: X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The following patches are going to address error handling in relocation, in order to test those patches I need to be able to inject errors in btrfs_search_slot and btrfs_cow_block, as we call both of these pretty often in different cases during relocation. Signed-off-by: Josef Bacik Reviewed-by: Qu Wenruo Reviewed-by: Johannes Thumshirn --- fs/btrfs/ctree.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index e5a0941c4bde..f40d3a2590a5 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1494,6 +1494,7 @@ noinline int btrfs_cow_block(struct btrfs_trans_handle *trans, return ret; } +ALLOW_ERROR_INJECTION(btrfs_cow_block, ERRNO); /* * helper function for defrag to decide if two blocks pointed to by a @@ -2800,6 +2801,7 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root *root, btrfs_release_path(p); return ret; } +ALLOW_ERROR_INJECTION(btrfs_search_slot, ERRNO); /* * Like btrfs_search_slot, this looks for a key in the given tree. It uses the