From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([222.73.24.84]:1732 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751968AbaAFB5t (ORCPT ); Sun, 5 Jan 2014 20:57:49 -0500 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id s061vfHQ002425 for ; Mon, 6 Jan 2014 09:57:45 +0800 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH v3 4/9] btrfs: Add noenospc_debug mount option. Date: Mon, 6 Jan 2014 09:58:28 +0800 Message-Id: <1388973513-11240-5-git-send-email-quwenruo@cn.fujitsu.com> In-Reply-To: <1388973513-11240-1-git-send-email-quwenruo@cn.fujitsu.com> References: <1388973513-11240-1-git-send-email-quwenruo@cn.fujitsu.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Add noenospc_debug mount option to disable ENOSPC debug with remount option. Signed-off-by: Qu Wenruo Reviewed-by: David Sterba --- Changelog: v2: Add noenospc_debug option v3: None --- Documentation/filesystems/btrfs.txt | 3 ++- fs/btrfs/super.c | 5 +++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt index 7254cf5..13a7cac 100644 --- a/Documentation/filesystems/btrfs.txt +++ b/Documentation/filesystems/btrfs.txt @@ -108,8 +108,9 @@ Options with (*) are default options and will not show in the mount options. performance impact. (The fstrim command is also available to initiate batch trims from userspace). + noenospc_debug(*) enospc_debug - Debugging option to be more verbose in some ENOSPC conditions. + Disable/enable debugging option to be more verbose in some ENOSPC conditions. fatal_errors= Action to take when encountering a fatal error: diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 8731ee6..acf3e7d 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -324,6 +324,7 @@ enum { Opt_check_integrity, Opt_check_integrity_including_extent_data, Opt_check_integrity_print_mask, Opt_fatal_errors, Opt_rescan_uuid_tree, Opt_commit_interval, Opt_barrier, Opt_nodefrag, Opt_nodiscard, + Opt_noenospc_debug, Opt_err, }; @@ -356,6 +357,7 @@ static match_table_t tokens = { {Opt_clear_cache, "clear_cache"}, {Opt_user_subvol_rm_allowed, "user_subvol_rm_allowed"}, {Opt_enospc_debug, "enospc_debug"}, + {Opt_noenospc_debug, "noenospc_debug"}, {Opt_subvolrootid, "subvolrootid=%d"}, {Opt_defrag, "autodefrag"}, {Opt_nodefrag, "noautodefrag"}, @@ -603,6 +605,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) case Opt_enospc_debug: btrfs_set_opt(info->mount_opt, ENOSPC_DEBUG); break; + case Opt_noenospc_debug: + btrfs_clear_opt(info->mount_opt, ENOSPC_DEBUG); + break; case Opt_defrag: btrfs_info(root->fs_info, "enabling auto defrag"); btrfs_set_opt(info->mount_opt, AUTO_DEFRAG); -- 1.8.5.2