From patchwork Thu Dec 3 18:22:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josef Bacik X-Patchwork-Id: 11949265 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=-16.7 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,URIBL_BLOCKED,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 C43B4C18E57 for ; Thu, 3 Dec 2020 18:23:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 949342085B for ; Thu, 3 Dec 2020 18:23:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731565AbgLCSXt (ORCPT ); Thu, 3 Dec 2020 13:23:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727770AbgLCSXq (ORCPT ); Thu, 3 Dec 2020 13:23:46 -0500 Received: from mail-qk1-x742.google.com (mail-qk1-x742.google.com [IPv6:2607:f8b0:4864:20::742]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D063FC061A51 for ; Thu, 3 Dec 2020 10:23:05 -0800 (PST) Received: by mail-qk1-x742.google.com with SMTP id q22so3020777qkq.6 for ; Thu, 03 Dec 2020 10:23:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=sVF29zjIMzK8Aj5Dvh77oVxPiV6X9DMRXLxv8SQexm0=; b=jnU5rLDL9/Ii/0EPYIy4bAFsjL8gtfJx5C3Gwdw9CenVglYu3ffeZYPQm12KdhMhpj VhKWTRvA7dMtnkhwHw4KVA8gm6DIFiF9emh4bA/UCpkJApxJ6URLisWQU2yWMeQUwnuz xeWXstlnWAwxcAQt4cdHJy4q2fn6pqnzvWFfjdpGFwvFDH9rzWLjlytZ2a/DO2DqZFx2 4gMaGi/tCy+WS4mWOVS9OMZkhe5Fkmk6EJ0329hqRBWd6gOP/L4kbRlCDx3yUCR0ywMJ 6ci2gKz8u5hYx8kH0DHvTgDNlKqDrBrSc8DR1WrOb3nAV1CDP7OBoyGnlYTpQyKhQbdV VhlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=sVF29zjIMzK8Aj5Dvh77oVxPiV6X9DMRXLxv8SQexm0=; b=f0NyXzxBCRI1BxG95Clmz4bToHcAOOWXgt9i7HAw+Zh727iZXrHJMaDAoYXnNFTx+D tOfHKtcp7mZq9mdgiA+jglqw54qsjX+vOxWoLJS7kSGLg1zQn3K5yderQtno0FneMu+u X2kta7gBvHKEKJRROS+cSb5ZwwKrS4h4kNWjqi8jzWWBF/IsMoDp1P8QkwlQmlBBhTd4 SD5WZ270alNWOUZniWBaakOfTNe3snOKIRhbO8VQjAKq7bn1wvbCrFfYfKm/FaU0RaL9 5HhePtYkBfY0vAesbdwE9kW2u+HhP8x3C3ULmSu4aNctU4R+k3/B7oR+Hs1ib8Vke9y7 mtyQ== X-Gm-Message-State: AOAM530YWNbev79kqeym+N3t+tu0GuOpxzRnAh8y7oHtEub517g284i+ m6APHYWTeAQ9Nbz1ME6cPf3B3CMX4BaoPI6Y X-Google-Smtp-Source: ABdhPJzoY3G5mYgW3WddSZAgvRlrCDLI8T47AUO6sVqMoZr0eG9ofj69Kv9jfT9+I04hu7twyIYuSQ== X-Received: by 2002:a37:a2c5:: with SMTP id l188mr4248079qke.250.1607019784775; Thu, 03 Dec 2020 10:23:04 -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 y192sm2350719qkb.12.2020.12.03.10.23.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Dec 2020 10:23:04 -0800 (PST) From: Josef Bacik To: linux-btrfs@vger.kernel.org, kernel-team@fb.com Cc: Qu Wenruo , Johannes Thumshirn Subject: [PATCH v4 02/53] btrfs: allow error injection for btrfs_search_slot and btrfs_cow_block Date: Thu, 3 Dec 2020 13:22:08 -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. Reviewed-by: Qu Wenruo Reviewed-by: Johannes Thumshirn Signed-off-by: Josef Bacik --- 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