aboutsummaryrefslogtreecommitdiff
path: root/block/bochs.c
diff options
context:
space:
mode:
authorKevin Wolf <kwolf@redhat.com>2016-06-20 21:31:46 +0200
committerKevin Wolf <kwolf@redhat.com>2016-07-05 16:46:27 +0200
commita03ef88f77af045a2eb9629b5ce774a3fb973c5e (patch)
treeeb38df63cf3b067a09f27681fa9ef55a1988776d /block/bochs.c
parente293b7a3dff232ddf71e92ea88961b597586911e (diff)
block: Convert bdrv_co_preadv/pwritev to BdrvChild
This is the final patch for converting the common I/O path to take a BdrvChild parameter instead of BlockDriverState. The completion of this conversion means that all users that perform I/O on an image need to actually hold a reference (in the form of BdrvChild, possible as part of a BlockBackend) to that image. This also protects against inconsistent use of BlockBackend vs. BlockDriverState functions because direct use of a BlockDriverState isn't possible any more and blk->root is private for block-backends.c. In addition, we can now distinguish different users in the I/O path, and the future op blockers work is going to add assertions based on permissions stored in BdrvChild. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/bochs.c')
-rw-r--r--block/bochs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/bochs.c b/block/bochs.c
index 46f635f2e7..8c9652ebeb 100644
--- a/block/bochs.c
+++ b/block/bochs.c
@@ -255,7 +255,7 @@ bochs_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
qemu_iovec_concat(&local_qiov, qiov, bytes_done, 512);
if (block_offset > 0) {
- ret = bdrv_co_preadv(bs->file->bs, block_offset, 512,
+ ret = bdrv_co_preadv(bs->file, block_offset, 512,
&local_qiov, 0);
if (ret < 0) {
goto fail;