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btrfs: show rescue=usebackuproot in /proc/mounts

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The standalone option usebackuproot was intended as one-time use and it
was not necessary to keep it in the option list. Now that we're going to
have more rescue options, it's desirable to keep them intact as it could
be confusing why the option disappears.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ remove the btrfs_clear_opt part from open_ctree ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2020-10-16 11:29:17 -04:00 committed by David Sterba
parent ab0b4a3ebf
commit 68319c18cb
2 changed files with 2 additions and 6 deletions
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6
fs/btrfs/disk-io.c
View File

@ -3384,12 +3384,6 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
}
set_bit(BTRFS_FS_OPEN, &fs_info->flags);
/*
* backuproot only affect mount behavior, and if open_ctree succeeded,
* no need to keep the flag
*/
btrfs_clear_opt(fs_info->mount_opt, USEBACKUPROOT);
return 0;
fail_qgroup:

2
fs/btrfs/super.c
View File

@ -1437,6 +1437,8 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
seq_puts(seq, ",notreelog");
if (btrfs_test_opt(info, NOLOGREPLAY))
print_rescue_option(seq, "nologreplay", &printed);
if (btrfs_test_opt(info, USEBACKUPROOT))
print_rescue_option(seq, "usebackuproot", &printed);
if (btrfs_test_opt(info, FLUSHONCOMMIT))
seq_puts(seq, ",flushoncommit");
if (btrfs_test_opt(info, DISCARD_SYNC))