BTRFS_MOUNT_     1193 fs/btrfs/ctree.h #define btrfs_clear_opt(o, opt)		((o) &= ~BTRFS_MOUNT_##opt)
BTRFS_MOUNT_     1194 fs/btrfs/ctree.h #define btrfs_set_opt(o, opt)		((o) |= BTRFS_MOUNT_##opt)
BTRFS_MOUNT_     1195 fs/btrfs/ctree.h #define btrfs_raw_test_opt(o, opt)	((o) & BTRFS_MOUNT_##opt)
BTRFS_MOUNT_     1197 fs/btrfs/ctree.h 					 BTRFS_MOUNT_##opt)