tree 4233757994b2ff97c29c81d5aae9f4660dcea1b3
parent 9ca170a3c0cbb0d5251cef6f5a3300fa436ba8ec
author Kiyoshi Ueda <k-ueda@ct.jp.nec.com> 1260489133 +0000
committer Alasdair G Kergon <agk@redhat.com> 1260489133 +0000

dm: abstract dm_in_flight function

This patch adds md_in_flight() to get the number of in_flight I/Os.
No functional change.

This patch is a preparation for a later patch in this series, which
changes I/O counter to md->pending from q->in_flight in request-based dm.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>