dm snapshot: track suspended state in target

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Keep track of whether or not the device is suspended within the snapshot
target module, the same as we do in dm-raid1.

We will use this later to enforce the correct sequence of ioctls to
transfer the in-core exceptions from a snapshot target instance in
one table to a replacement one capable of merging them back
into the origin.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

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Mike Snitzer 2009-12-10 23:52:12 +00:00 • committed by Alasdair G Kergon

parent fc56f6fbcc

commit c26655ca3c

1 changed files with 16 additions and 1 deletions

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17

drivers/md/dm-snap.c

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