K 10
svn:author
V 3
avg
K 8
svn:date
V 27
2019-09-22T08:44:41.619107Z
K 7
svn:log
V 504
MFZoL: Retire send space estimation via ZFS_IOC_SEND

Add a small wrapper around libzfs_core's lzc_send_space() to libzfs so
that every legacy ZFS_IOC_SEND consumer, along with their userland
counterpart estimate_ioctl(), can leverage ZFS_IOC_SEND_SPACE to
request send space estimation.

The legacy functionality in zfs_ioc_send() is left untouched for
compatibility purposes.

Obtained from:	ZoL
Obtained from:	zfsonlinux/zfs@cf7684bc8d57
Author:		loli10K <ezomori.nozomu@gmail.com>
MFC after:	2 weeks

END