xfs_reflink_allocate_cow 992 fs/xfs/xfs_iomap.c error = xfs_reflink_allocate_cow(ip, &cmap, &shared, &lockmode, xfs_reflink_allocate_cow 28 fs/xfs/xfs_reflink.h extern int xfs_reflink_allocate_cow(struct xfs_inode *ip,