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authorMark McLoughlin <markmc@redhat.com>2006-10-03 01:15:25 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:04:14 -0700
commit4c7e3bf44d0ae227ea1ee87c2197212e65d043d7 (patch)
tree658140b966d78f4709de10cd03e0bfdade6bc13e /drivers/md/dm-snap.h
parent92c060a692a0c3482cdfcaf346cb2f7572368895 (diff)
downloadlinux-4c7e3bf44d0ae227ea1ee87c2197212e65d043d7.tar.bz2
[PATCH] dm snapshot: allow zero chunk_size
The chunk size of snapshots cannot be changed so it is redundant to require it as a parameter when activating an existing snapshot. Allow a value of zero in this case and ignore it. For a new snapshot, use a default value if zero is specified. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/dm-snap.h')
-rw-r--r--drivers/md/dm-snap.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/md/dm-snap.h b/drivers/md/dm-snap.h
index fdec1e2dc871..221eb8880c80 100644
--- a/drivers/md/dm-snap.h
+++ b/drivers/md/dm-snap.h
@@ -128,10 +128,9 @@ int dm_add_exception(struct dm_snapshot *s, chunk_t old, chunk_t new);
* Constructor and destructor for the default persistent
* store.
*/
-int dm_create_persistent(struct exception_store *store, uint32_t chunk_size);
+int dm_create_persistent(struct exception_store *store);
-int dm_create_transient(struct exception_store *store,
- struct dm_snapshot *s, int blocksize);
+int dm_create_transient(struct exception_store *store);
/*
* Return the number of sectors in the device.