From patchwork Mon Aug 29 11:36:32 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoguang Wang X-Patchwork-Id: 9303673 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AA82D607F0 for ; Mon, 29 Aug 2016 11:43:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9CA4128765 for ; Mon, 29 Aug 2016 11:43:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 90BB728823; Mon, 29 Aug 2016 11:43:02 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2C8B828765 for ; Mon, 29 Aug 2016 11:43:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932912AbcH2Lm4 (ORCPT ); Mon, 29 Aug 2016 07:42:56 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:50052 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S932820AbcH2Lm4 (ORCPT ); Mon, 29 Aug 2016 07:42:56 -0400 X-IronPort-AV: E=Sophos;i="5.20,367,1444665600"; d="scan'208";a="814733" Received: from unknown (HELO cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 29 Aug 2016 19:40:32 +0800 Received: from localhost.localdomain (unknown [10.167.226.107]) by cn.fujitsu.com (Postfix) with ESMTP id D66694056401 for ; Mon, 29 Aug 2016 19:40:32 +0800 (CST) From: Wang Xiaoguang To: linux-btrfs@vger.kernel.org Subject: [PATCH] btrfs: add ENOSPC check for temporarily allocated btrfs_block_rsv Date: Mon, 29 Aug 2016 19:36:32 +0800 Message-Id: <20160829113632.24193-1-wangxg.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.9.0 MIME-Version: 1.0 X-yoursite-MailScanner-ID: D66694056401.AF7DF X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: wangxg.fnst@cn.fujitsu.com Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Wang Xiaoguang --- fs/btrfs/extent-tree.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 56a9c59..602e410 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5552,6 +5552,9 @@ void btrfs_free_block_rsv(struct btrfs_root *root, if (!rsv) return; btrfs_block_rsv_release(root, rsv, (u64)-1); + + WARN_ON(rsv->size > 0); + WARN_ON(rsv->reserved > 0); kfree(rsv); }