cabf70c7b8
Currently, to fix device following the write failure of one or more devices during btrfstune -m|M, we rely on the kernel's ability to reassemble devices, even when they possess distinct fsids. Kernel hinges combinations of metadata_uuid and generation number, with additional cues taken from the fsid and the BTRFS_SUPER_FLAG_CHANGING_FSID_V2 flag. This patch adds this logic to btrfs-progs. In complex scenarios (such as multiple fsids with the same metadata_uuid and matching generation), user intervention becomes necessary to resolve the situations which btrfs-progs can do better. Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
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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_TUNE_H__
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#define __BTRFS_TUNE_H__
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#include <uuid/uuid.h>
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struct btrfs_root;
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struct btrfs_fs_info;
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int update_seeding_flag(struct btrfs_root *root, const char *device, int set_flag, int force);
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int change_uuid(struct btrfs_fs_info *fs_info, const char *new_fsid_str);
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int set_metadata_uuid(struct btrfs_root *root, const char *uuid_string);
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int convert_to_bg_tree(struct btrfs_fs_info *fs_info);
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int convert_to_extent_tree(struct btrfs_fs_info *fs_info);
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int btrfs_change_csum_type(struct btrfs_fs_info *fs_info, u16 new_csum_type);
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int enable_quota(struct btrfs_fs_info *fs_info, bool simple);
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#endif
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