Searched hist:"4454 a6216f75a9ef8c4bd0a65e34b101f725ef1e" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/drivers/md/ |
| H A D | dm-exception-store.h | diff 4454a6216f75a9ef8c4bd0a65e34b101f725ef1e Thu Dec 10 17:52:29 CST 2009 Mikulas Patocka <mpatocka@redhat.com> dm exception store: add merge specific methods
Add functions that decide how many consecutive chunks of snapshot to
merge back into the origin next and to update the metadata afterwards.
prepare_merge provides a pointer to the most recent still-to-be-merged
chunk and returns how many previous ones are consecutive and can be
processed together.
commit_merge removes the nr_merged most-recent chunks permanently from
the exception store. The number must not exceed that returned by
prepare_merge.
Introduce NUM_SNAPSHOT_HDR_CHUNKS to show where the snapshot header
chunk is accounted for.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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| H A D | dm-snap-persistent.c | diff 4454a6216f75a9ef8c4bd0a65e34b101f725ef1e Thu Dec 10 17:52:29 CST 2009 Mikulas Patocka <mpatocka@redhat.com> dm exception store: add merge specific methods
Add functions that decide how many consecutive chunks of snapshot to
merge back into the origin next and to update the metadata afterwards.
prepare_merge provides a pointer to the most recent still-to-be-merged
chunk and returns how many previous ones are consecutive and can be
processed together.
commit_merge removes the nr_merged most-recent chunks permanently from
the exception store. The number must not exceed that returned by
prepare_merge.
Introduce NUM_SNAPSHOT_HDR_CHUNKS to show where the snapshot header
chunk is accounted for.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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