K 10
svn:author
V 3
ian
K 8
svn:date
V 27
2019-02-17T23:32:09.673086Z
K 7
svn:log
V 1009
Restore loader(8)'s ability for lsdev to show partitions within a bsd slice.

I'm pretty sure this used to work at one time, perhaps long ago.  It has
been failing recently because if you call disk_open() with dev->d_partition
set to -1 when d_slice refers to a bsd slice, it assumes you want it to
open the first partition within that slice.  When you then pass that open
dev instance to ptable_open(), it tries to read the start of the 'a'
partition and decides there is no recognizable partition type there.

This restores the old functionality by resetting d_offset to the start
of the raw slice after disk_open() returns.  For good measure, d_partition
is also set back to -1, although that doesn't currently affect anything.

I would have preferred to make disk_open() avoid such rude assumptions and
if you ask for partition -1 you get the raw slice.  But the commit history
shows that someone already did that once (r239058), and had to revert it
(r239232), so I didn't even try to go down that road.

END