diff options
| author | Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> | 2019-05-29 20:56:14 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2019-07-02 03:53:04 +0200 |
| commit | 170d3bd341b3955f10b40b4569f66bf3d4dbc4a0 (patch) | |
| tree | 7564a524fa4dc632bbcf29c630c6ec467358eaa0 /include/block | |
| parent | d24f80234b39d2d5c0d91e63b5e4569d37b2399e (diff) | |
block: include base when checking image chain for block allocation
This patch is used in the 'block/stream: introduce a bottom node'
that is following. Instead of the base node, the caller may pass
the node that has the base as its backing image to the function
bdrv_is_allocated_above() with a new parameter include_base = true
and get rid of the dependency on the base that may change during
commit/stream parallel jobs. Now, if the specified base is not
found in the backing image chain, the QEMU will abort.
Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 1559152576-281803-2-git-send-email-andrey.shinkevich@virtuozzo.com
[mreitz: Squashed in the following as a rebase on conflicting patches:]
Message-id: e3cf99ae-62e9-8b6e-5a06-d3c8b9363b85@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/block.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/block/block.h b/include/block/block.h index f9415ed740..734c9d2f76 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -449,7 +449,8 @@ int bdrv_block_status_above(BlockDriverState *bs, BlockDriverState *base, int bdrv_is_allocated(BlockDriverState *bs, int64_t offset, int64_t bytes, int64_t *pnum); int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base, - int64_t offset, int64_t bytes, int64_t *pnum); + bool include_base, int64_t offset, int64_t bytes, + int64_t *pnum); bool bdrv_is_read_only(BlockDriverState *bs); int bdrv_can_set_read_only(BlockDriverState *bs, bool read_only, |