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-rw-r--r--fs/btrfs/super.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 8399d6d05d6..2e6039825b7 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -519,6 +519,9 @@ static struct file_system_type btrfs_fs_type = {
.fs_flags = FS_REQUIRES_DEV,
};
+/*
+ * used by btrfsctl to scan devices when no FS is mounted
+ */
static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{