can_nocow_extent 2817 fs/btrfs/ctree.h noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len, can_nocow_extent 1570 fs/btrfs/file.c ret = can_nocow_extent(&inode->vfs_inode, lockstart, &num_bytes, can_nocow_extent 7781 fs/btrfs/inode.c if (can_nocow_extent(inode, start, &len, &orig_start, can_nocow_extent 10950 fs/btrfs/inode.c ret = can_nocow_extent(inode, start, &len, NULL, NULL, NULL);