dm: abstract dm_in_flight function

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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>

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Kiyoshi Ueda 2009-12-10 23:52:13 +00:00 • committed by Alasdair G Kergon

parent 9ca170a3c0

commit 90abb8c4ce

1 changed files with 7 additions and 2 deletions

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drivers/md/dm.c

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