BTRFS_INODE_IMMUTABLE
if (bi_flags & BTRFS_INODE_IMMUTABLE)
if (flags & BTRFS_INODE_IMMUTABLE)
if (inode->flags & BTRFS_INODE_IMMUTABLE)
inode_flags |= BTRFS_INODE_IMMUTABLE;
inode_flags &= ~BTRFS_INODE_IMMUTABLE;
BTRFS_INODE_IMMUTABLE | \