K 10
svn:author
V 3
bde
K 8
svn:date
V 27
2018-12-09T15:34:20.685210Z
K 7
svn:log
V 564
Fix devstat on md devices.

devstat_end_transaction() was called before the i/o was actually ended
(by delivering it to GEOM), so at least the i/o length was messed up.
It was always recorded as 0, so the average transaction size and the
average transfer rate was always displayed as 0.

devstat_end_transaction() was not called at all for the error case, so
there were sometimes multiple starts per end.  I didn't observe this in
practice and don't know if it did much damage.  I think it extended the
length of the i/o to the next transaction.

Reviewed by:	kib

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