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block/block-backend: blk_iostatus_reset: drop usage of bs->job

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We are going to remove bs->job pointer. Drop it's usage in
blk_iostatus_reset.

blk_iostatus_reset() has only two callers:

1. blk_attach_dev(). This doesn't have anything to do with jobs and
    attaching a new guest device won't solve any problem the job
    encountered, so no reason to reset the iostatus for the job.

2. qmp_cont(). This resets the iostatus for everything. We can just
    call block_job_iostatus_reset() for all block jobs instead of going
    through BlockBackend.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-06-06 18:41:30 +03:00 committed by Kevin Wolf
parent cc19f1773d
commit 68d00e4293
2 changed files with 5 additions and 4 deletions
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4
block/block-backend.c
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@ -1073,11 +1073,7 @@ void blk_iostatus_disable(BlockBackend *blk)
void blk_iostatus_reset(BlockBackend *blk)
{
if (blk_iostatus_is_enabled(blk)) {
BlockDriverState *bs = blk_bs(blk);
blk->iostatus = BLOCK_DEVICE_IO_STATUS_OK;
if (bs && bs->job) {
block_job_iostatus_reset(bs->job);
}
}
}

5
monitor/qmp-cmds.c
View file

@ -143,6 +143,7 @@ void qmp_x_exit_preconfig(Error **errp)
void qmp_cont(Error **errp)
{
BlockBackend *blk;
BlockJob *job;
Error *local_err = NULL;
/* if there is a dump in background, we should wait until the dump
@ -166,6 +167,10 @@ void qmp_cont(Error **errp)
blk_iostatus_reset(blk);
}
for (job = block_job_next(NULL); job; job = block_job_next(job)) {
block_job_iostatus_reset(job);
}
/* Continuing after completed migration. Images have been inactivated to
* allow the destination to take control. Need to get control back now.
*