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authorAlasdair G Kergon <agk@redhat.com>2009-12-13 16:52:13 +1100
committerStephen Rothwell <sfr@canb.auug.org.au>2009-12-13 16:52:13 +1100
commitb2f759f074fece04e6efbc74531f340d08296b3a (patch)
tree69a7b6675e2cd020807729de50cd99747f6470f4 /include
parenta1a33d732da7f46b4cd73f609d268940e80ce843 (diff)
dm-keep-old-table-until-after-resume-succeeded
When swapping a new table into place, retain the old table until its replacement is in place. An old check for an empty table is removed because this is enforced in populate_table(). __unbind() becomes redundant when followed by __bind(). Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/device-mapper.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index fc16a351ef7a..b9c6c8ca11be 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -295,8 +295,10 @@ void dm_table_event(struct dm_table *t);
/*
* The device must be suspended before calling this method.
+ * Returns the previous table, which the caller must destroy.
*/
-int dm_swap_table(struct mapped_device *md, struct dm_table *t);
+struct dm_table *dm_swap_table(struct mapped_device *md,
+ struct dm_table *t);
/*
* A wrapper around vmalloc.