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-rw-r--r--fs/btrfs/super.c4
-rw-r--r--fs/seq_file.c1
2 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 6fa4aaf0543a..cd7ef34d2dce 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1188,6 +1188,10 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
seq_puts(seq, ",fatal_errors=panic");
if (info->commit_interval != BTRFS_DEFAULT_COMMIT_INTERVAL)
seq_printf(seq, ",commit=%d", info->commit_interval);
+ seq_printf(seq, ",subvolid=%llu",
+ BTRFS_I(d_inode(dentry))->root->root_key.objectid);
+ seq_puts(seq, ",subvol=");
+ seq_dentry(seq, dentry, " \t\n\\");
return 0;
}
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 555f82155be8..52b492721603 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -538,6 +538,7 @@ int seq_dentry(struct seq_file *m, struct dentry *dentry, const char *esc)
return res;
}
+EXPORT_SYMBOL(seq_dentry);
static void *single_start(struct seq_file *p, loff_t *pos)
{