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Re: [Qemu-devel] [PATCH 01/42] blockjob: Fix assertion in block_job_fina
From: |
John Snow |
Subject: |
Re: [Qemu-devel] [PATCH 01/42] blockjob: Fix assertion in block_job_finalize() |
Date: |
Fri, 11 May 2018 18:29:24 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 |
On 05/09/2018 12:25 PM, Kevin Wolf wrote:
> Every job gets a non-NULL job->txn on creation, but it doesn't
> necessarily keep it until it is decommissioned: Finalising a job removes
> it from its transaction. Therefore, calling 'blockdev-job-finalize' a
> second time on an already concluded job causes an assertion failure.
>
> Remove job->txn from the assertion in block_job_finalize() to fix this.
> block_job_do_finalize() still has the same assertion, but if a job is
> already removed from its transaction, block_job_apply_verb() will
> already error out before we run into that assertion.
>
> Signed-off-by: Kevin Wolf <address@hidden>
Reviewed-by: John Snow <address@hidden>
> ---
> blockjob.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/blockjob.c b/blockjob.c
> index 4de48166b2..b38ed7e265 100644
> --- a/blockjob.c
> +++ b/blockjob.c
> @@ -702,7 +702,7 @@ void block_job_complete(BlockJob *job, Error **errp)
>
> void block_job_finalize(BlockJob *job, Error **errp)
> {
> - assert(job && job->id && job->txn);
> + assert(job && job->id);
> if (block_job_apply_verb(job, BLOCK_JOB_VERB_FINALIZE, errp)) {
> return;
> }
>
Oh, ack. Good catch.