From patchwork Wed Oct 10 10:07:23 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhiyong Wu X-Patchwork-Id: 1572581 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 3F8DBDFB34 for ; Wed, 10 Oct 2012 10:08:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754531Ab2JJKIW (ORCPT ); Wed, 10 Oct 2012 06:08:22 -0400 Received: from e5.ny.us.ibm.com ([32.97.182.145]:58139 "EHLO e5.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754672Ab2JJKIU (ORCPT ); Wed, 10 Oct 2012 06:08:20 -0400 Received: from /spool/local by e5.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 10 Oct 2012 06:08:18 -0400 Received: from d01relay02.pok.ibm.com (9.56.227.234) by e5.ny.us.ibm.com (192.168.1.105) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Wed, 10 Oct 2012 06:08:11 -0400 Received: from d01av03.pok.ibm.com (d01av03.pok.ibm.com [9.56.224.217]) by d01relay02.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q9AA859G158392; Wed, 10 Oct 2012 06:08:05 -0400 Received: from d01av03.pok.ibm.com (loopback [127.0.0.1]) by d01av03.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q9AA82mZ019913; Wed, 10 Oct 2012 07:08:04 -0300 Received: from us.ibm.com (f15.cn.ibm.com [9.115.122.193]) by d01av03.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with SMTP id q9AA7wk4019675; Wed, 10 Oct 2012 07:07:58 -0300 Received: by us.ibm.com (sSMTP sendmail emulation); Wed, 10 Oct 2012 18:07:57 +0800 From: zwu.kernel@gmail.com To: linux-fsdevel@vger.kernel.org Cc: linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linuxram@linux.vnet.ibm.com, viro@zeniv.linux.org.uk, david@fromorbit.com, dave@jikos.cz, tytso@mit.edu, cmm@us.ibm.com, Zhi Yong Wu Subject: [RFC v3 01/13] btrfs: add one new mount option '-o hot_track' Date: Wed, 10 Oct 2012 18:07:23 +0800 Message-Id: <1349863655-29320-2-git-send-email-zwu.kernel@gmail.com> X-Mailer: git-send-email 1.7.6.5 In-Reply-To: <1349863655-29320-1-git-send-email-zwu.kernel@gmail.com> References: <1349863655-29320-1-git-send-email-zwu.kernel@gmail.com> x-cbid: 12101010-5930-0000-0000-00000CEFBE86 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org From: Zhi Yong Wu Introduce one new mount option '-o hot_track', and add its parsing support. Its usage looks like: mount -o hot_track mount -o nouser,hot_track mount -o nouser,hot_track,loop mount -o hot_track,nouser Signed-off-by: Zhi Yong Wu --- fs/btrfs/ctree.h | 1 + fs/btrfs/super.c | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9821b67..094bec6 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1726,6 +1726,7 @@ struct btrfs_ioctl_defrag_range_args { #define BTRFS_MOUNT_CHECK_INTEGRITY (1 << 20) #define BTRFS_MOUNT_CHECK_INTEGRITY_INCLUDING_EXTENT_DATA (1 << 21) #define BTRFS_MOUNT_PANIC_ON_FATAL_ERROR (1 << 22) +#define BTRFS_MOUNT_HOT_TRACK (1 << 23) #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt) #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 83d6f9f..00be9e3 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -41,6 +41,7 @@ #include #include #include +#include #include "compat.h" #include "delayed-inode.h" #include "ctree.h" @@ -303,7 +304,7 @@ enum { Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard, Opt_space_cache, Opt_clear_cache, Opt_user_subvol_rm_allowed, Opt_enospc_debug, Opt_subvolrootid, Opt_defrag, Opt_inode_cache, - Opt_no_space_cache, Opt_recovery, Opt_skip_balance, + Opt_no_space_cache, Opt_recovery, Opt_skip_balance, Opt_hot_track, Opt_check_integrity, Opt_check_integrity_including_extent_data, Opt_check_integrity_print_mask, Opt_fatal_errors, Opt_err, @@ -342,6 +343,7 @@ static match_table_t tokens = { {Opt_no_space_cache, "nospace_cache"}, {Opt_recovery, "recovery"}, {Opt_skip_balance, "skip_balance"}, + {Opt_hot_track, "hot_track"}, {Opt_check_integrity, "check_int"}, {Opt_check_integrity_including_extent_data, "check_int_data"}, {Opt_check_integrity_print_mask, "check_int_print_mask=%d"}, @@ -553,6 +555,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) case Opt_skip_balance: btrfs_set_opt(info->mount_opt, SKIP_BALANCE); break; + case Opt_hot_track: + btrfs_set_opt(info->mount_opt, HOT_TRACK); + break; #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY case Opt_check_integrity_including_extent_data: printk(KERN_INFO "btrfs: enabling check integrity"