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authorKevin Wolf <kwolf@redhat.com>2010-01-12 12:55:17 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2010-01-13 17:14:15 -0600
commit756e6736a12a46330d9532d5f861ba15b38886d8 (patch)
treeb8b36409fef483b90fe9a79384aab38e3ea07dd2 /block.h
parentb783e409bf17b92f4af8dc5d6bd040d0092f33e0 (diff)
block: Add bdrv_change_backing_file
Introduce the functions needed to change the backing file of an image. The function is implemented for qcow2. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'block.h')
-rw-r--r--block.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/block.h b/block.h
index f660d5f4d..bee9ec566 100644
--- a/block.h
+++ b/block.h
@@ -83,6 +83,8 @@ int64_t bdrv_getlength(BlockDriverState *bs);
void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
void bdrv_guess_geometry(BlockDriverState *bs, int *pcyls, int *pheads, int *psecs);
int bdrv_commit(BlockDriverState *bs);
+int bdrv_change_backing_file(BlockDriverState *bs,
+ const char *backing_file, const char *backing_fmt);
void bdrv_register(BlockDriver *bdrv);
/* async block I/O */