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author | Fam Zheng <famz@redhat.com> | 2014-05-23 21:29:43 +0800 |
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committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-05-28 14:28:46 +0200 |
commit | 3718d8ab65f68de2acccbe6a315907805f54e3cc (patch) | |
tree | 91961147abdc709790b77aa0ee87a93f39602807 /qom | |
parent | fbe40ff780564526e6f639b3b78366727d34955c (diff) |
block: Replace in_use with operation blocker
This drops BlockDriverState.in_use with op_blockers:
- Call bdrv_op_block_all in place of bdrv_set_in_use(bs, 1).
- Call bdrv_op_unblock_all in place of bdrv_set_in_use(bs, 0).
- Check bdrv_op_is_blocked() in place of bdrv_in_use(bs).
The specific types are used, e.g. in place of starting block backup,
bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP, ...).
There is one exception in block_job_create, where
bdrv_op_blocker_is_empty() is used, because we don't know the operation
type here. This doesn't matter because in a few commits away we will drop
the check and move it to callers that _do_ know the type.
- Check bdrv_op_blocker_is_empty() in place of assert(!bs->in_use).
Note: there is only bdrv_op_block_all and bdrv_op_unblock_all callers at
this moment. So although the checks are specific to op types, this
changes can still be seen as identical logic with previously with
in_use. The difference is error message are improved because of blocker
error info.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'qom')
0 files changed, 0 insertions, 0 deletions