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| author | Kevin Wolf <kwolf@redhat.com> | 2017-06-27 20:36:18 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-10-06 16:28:58 +0200 |
| commit | bde70715b67cc5183b00b445b811c1dfc0f74d2e (patch) | |
| tree | bfd5a31e68097124553898443726f3e4eb218dd6 /include | |
| parent | 7c61a4a3f90763527f212abc6d28e36df9e32202 (diff) | |
| download | qemu-bde70715b67cc5183b00b445b811c1dfc0f74d2e.zip qemu-bde70715b67cc5183b00b445b811c1dfc0f74d2e.tar.gz qemu-bde70715b67cc5183b00b445b811c1dfc0f74d2e.tar.bz2 | |
commit: Remove overlay_bs
We don't need to make any assumptions about the graph layout above the
top node of the commit operation any more. Remove the use of
bdrv_find_overlay() and related variables from the commit job code.
bdrv_drop_intermediate() doesn't use the 'active' parameter any more, so
we can just drop it.
The overlay node was previously added to the block job to get a
BLK_PERM_GRAPH_MOD. We really need to respect those permissions in
bdrv_drop_intermediate() now, but as long as we haven't figured out yet
how BLK_PERM_GRAPH_MOD is actually supposed to work, just leave a TODO
comment there.
With this change, it is now possible to perform another block job on an
overlay node without conflicts. qemu-iotests 030 is changed accordingly.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/block/block.h b/include/block/block.h index 3c3af46..d5c2731 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -315,8 +315,7 @@ 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); -int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top, - BlockDriverState *base, +int bdrv_drop_intermediate(BlockDriverState *top, BlockDriverState *base, const char *backing_file_str); BlockDriverState *bdrv_find_overlay(BlockDriverState *active, BlockDriverState *bs); |