From patchwork Fri Nov 13 16:22:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josef Bacik X-Patchwork-Id: 11904131 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 295F6C61DD8 for ; Fri, 13 Nov 2020 16:23:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CF40620797 for ; Fri, 13 Nov 2020 16:23:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=toxicpanda-com.20150623.gappssmtp.com header.i=@toxicpanda-com.20150623.gappssmtp.com header.b="orI9TRmZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726452AbgKMQXm (ORCPT ); Fri, 13 Nov 2020 11:23:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726184AbgKMQXm (ORCPT ); Fri, 13 Nov 2020 11:23:42 -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 9D7FDC0613D1 for ; Fri, 13 Nov 2020 08:23:42 -0800 (PST) Received: by mail-qv1-xf43.google.com with SMTP id g19so4857577qvy.2 for ; Fri, 13 Nov 2020 08:23:42 -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=IRfNdd73Bs7m54/hBEEmNRMtcKR05nMzxapQmsntDLM=; b=orI9TRmZbbiB5i+55kyO/FG6WgG8QdX+WvhWiehUsj0AblH+fZVUsPbBkxm4TZGlPb K3liPeDjxZHs7pJdEOtvRb1BC3Xtk2UqM6l5HDUDNKa1vc1KvUgT8OQP/rBif6+eiBeP M4MvQ5kFveU9dmeuDQsDjOF1J9MRYfAK9RtOk7E/MTdpkAeYZA2VNOt8VBRRpgfqY/5r tn8NHMXXcWSflPfLw4iPTjcghrFb2yY+ZdoGANaDOeSl+w7PTyo+sAs2kdLYZsSX1qOE PNPuIS6GvR/5KTVcxZSZYyE/26o+S5pYS7C6KPb2aP3p2CPgQJ70HQzY9Cg+dyQAyIJf /wYA== 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=IRfNdd73Bs7m54/hBEEmNRMtcKR05nMzxapQmsntDLM=; b=WyeJgNKtN7ad0YUx/fYeiZ+B+Wg5D8gqxYv1D9bTZtBaufGkRsCTUQFfq0VBCd1jZt wkxzg6cO3n41YhJbAXEvdMJ+6wrOVL21WXhQH5kmtFgRkMHUI2c2BPDRNS/RO+AbDYG2 h5rZXhGHzQyXD+WXVU+phh9Mi5ofG8bQyrBpUbgquQHBWzbx0LG2BsUOccbNCYHQboS7 CZcoWvS9hfq+pPBycsAF238JBfz+isIs0CRI9f+5xb9+U0GWrDR4GW98HO3aSggAwYPg LmBJKauROrcDINFCkNZrrnwck/fm5oSajkbCimfQXzkOeBLIjRUrmH9mJvc6s14fFAuM CQWQ== X-Gm-Message-State: AOAM5324M0H/Df3zEBh4rw0P4VPQIWGApXUIuMkcF3PsyRXY/EjWzYW+ NbeuxXDijtzblrnQ1nE2Q6ZnEmPDartpnQ== X-Google-Smtp-Source: ABdhPJyEM/2C9wNXYwayQm0sTh9Dqy/d29/FF5dPDfPSvmsd9rNR8zSX7vHQRkx3lDjPHXCURuqnNw== X-Received: by 2002:a05:6214:366:: with SMTP id t6mr3232140qvu.58.1605284616534; Fri, 13 Nov 2020 08:23:36 -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 i21sm6610199qtm.1.2020.11.13.08.23.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Nov 2020 08:23:35 -0800 (PST) From: Josef Bacik To: linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: [PATCH v2 01/42] btrfs: allow error injection for btrfs_search_slot and btrfs_cow_block Date: Fri, 13 Nov 2020 11:22:51 -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 --- fs/btrfs/ctree.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index f2c3d29b6bc4..8e551b237ee0 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 @@ -2817,6 +2818,7 @@ 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