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https://github.com/kdave/btrfs-progs
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14b6c32037
This patch introduces '-c' option to print the ID of the child qgroups.
You may use it like:
btrfs qgroup show -c <path>
For Example:
qgroupid(2/0)
/ \
/ \
/ \
qgroupid(1/0) qgroupid(1/1)
\ /
\ /
qgroupid(0/1)
If we use the command:
btrfs qgroup show -c <path>
The result will output
0/1 -- -- --
1/0 -- -- 0/1
1/1 -- -- 0/1
2/0 -- -- 1/0,1/1
Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/*
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* Copyright (C) 2012 STRATO. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef _BTRFS_QGROUP_H
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#define _BTRFS_QGROUP_H
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#include "ioctl.h"
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#include "kerncompat.h"
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enum btrfs_qgroup_column_enum {
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BTRFS_QGROUP_QGROUPID,
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BTRFS_QGROUP_RFER,
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BTRFS_QGROUP_EXCL,
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BTRFS_QGROUP_PARENT,
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BTRFS_QGROUP_CHILD,
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BTRFS_QGROUP_ALL,
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};
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int btrfs_show_qgroups(int fd);
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void btrfs_qgroup_setup_print_column(enum btrfs_qgroup_column_enum column);
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u64 parse_qgroupid(char *p);
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int qgroup_inherit_size(struct btrfs_qgroup_inherit *p);
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int qgroup_inherit_add_group(struct btrfs_qgroup_inherit **inherit, char *arg);
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int qgroup_inherit_add_copy(struct btrfs_qgroup_inherit **inherit, char *arg,
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int type);
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#endif
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