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| author | Alasdair G Kergon <agk@redhat.com> | 2009-12-10 23:52:24 +0000 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2009-12-10 23:52:24 +0000 |
| commit | 042d2a9bcd80fe12d4b0871706aa9dd2231e8238 (patch) | |
| tree | 69a7b6675e2cd020807729de50cd99747f6470f4 /include/linux/device-mapper.h | |
| parent | a794015597a2d9b437470c7692aac77e5fc08cd2 (diff) | |
| download | lwn-042d2a9bcd80fe12d4b0871706aa9dd2231e8238.tar.gz lwn-042d2a9bcd80fe12d4b0871706aa9dd2231e8238.zip | |
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/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 4 |
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. |