dm snapshot: allocate a per-target structure for snapshot-origin target

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Allocate a per-target dm_origin structure.  This is a prerequisite for
the next commit ("dm snapshot: do not split read bios sent to
snapshot-origin target") which adds a new member to this structure.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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Mikulas Patocka 2014-03-14 18:42:12 -04:00 • committed by Mike Snitzer

parent 1dd40c3ecd

commit 599cdf3bfb

1 changed files with 35 additions and 18 deletions

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drivers/md/dm-snap.c

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