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-rw-r--r--fs/btrfs/ctree.h5
-rw-r--r--fs/btrfs/super.c6
2 files changed, 11 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 8e948ec1ee6b..60e13ef23a5e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1336,6 +1336,11 @@ struct btrfs_ioctl_defrag_range_args {
*/
#define BTRFS_STRING_ITEM_KEY 253
+/*
+ * Flags for mount options.
+ *
+ * Note: don't forget to add new options to btrfs_show_options()
+ */
#define BTRFS_MOUNT_NODATASUM (1 << 0)
#define BTRFS_MOUNT_NODATACOW (1 << 1)
#define BTRFS_MOUNT_NOBARRIER (1 << 2)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 3559d0b3518a..5746081199ee 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -721,6 +721,12 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_puts(seq, ",clear_cache");
if (btrfs_test_opt(root, USER_SUBVOL_RM_ALLOWED))
seq_puts(seq, ",user_subvol_rm_allowed");
+ if (btrfs_test_opt(root, ENOSPC_DEBUG))
+ seq_puts(seq, ",enospc_debug");
+ if (btrfs_test_opt(root, AUTO_DEFRAG))
+ seq_puts(seq, ",autodefrag");
+ if (btrfs_test_opt(root, INODE_MAP_CACHE))
+ seq_puts(seq, ",inode_cache");
return 0;
}