Function dump_write

freebsd/kern/kern_shutdown.c:1663–1673

* Write to the dump device at the specified offset. */

 * Write to the dump device at the specified offset.
 */
int
dump_write(struct dumperinfo *di, void *virtual, vm_offset_t physical,
    off_t offset, size_t length)
{
	int error;

	error = dump_check_bounds(di, offset, length);
	if (error != 0)
		return (error);
	return (di->dumper(di->priv, virtual, physical, offset, length));
}

/*
 * Perform kernel dump finalization: flush the compression stream, if necessary,