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From: Eric Blake <eblake@redhat.com>
To: Max Reitz <mreitz@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
	Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
	qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [PATCH for-6.2 v3 04/12] job: Force-cancel jobs in a failed transaction
Date: Fri, 6 Aug 2021 14:22:18 -0500	[thread overview]
Message-ID: <20210806192218.isczd32bksumuth7@redhat.com> (raw)
In-Reply-To: <20210806093859.706464-5-mreitz@redhat.com>

On Fri, Aug 06, 2021 at 11:38:51AM +0200, Max Reitz wrote:
> When a transaction is aborted, no result matters, and so all jobs within
> should be force-cancelled.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  job.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)

Reviewed-by: Eric Blake <eblake@redhat.com>

> 
> diff --git a/job.c b/job.c
> index 3fe23bb77e..24e7c4fcb7 100644
> --- a/job.c
> +++ b/job.c
> @@ -766,7 +766,12 @@ static void job_completed_txn_abort(Job *job)
>          if (other_job != job) {
>              ctx = other_job->aio_context;
>              aio_context_acquire(ctx);
> -            job_cancel_async(other_job, false);
> +            /*
> +             * This is a transaction: If one job failed, no result will matter.
> +             * Therefore, pass force=true to terminate all other jobs as quickly
> +             * as possible.
> +             */
> +            job_cancel_async(other_job, true);
>              aio_context_release(ctx);
>          }
>      }
> -- 
> 2.31.1
> 
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org



  reply	other threads:[~2021-08-06 19:23 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-06  9:38 [PATCH for-6.2 v3 00/12] mirror: Handle errors after READY cancel Max Reitz
2021-08-06  9:38 ` [PATCH for-6.2 v3 01/12] job: Context changes in job_completed_txn_abort() Max Reitz
2021-08-06 19:16   ` Eric Blake
2021-08-09 10:04     ` Max Reitz
2021-09-01 10:05   ` Vladimir Sementsov-Ogievskiy
2021-09-01 12:47     ` Hanna Reitz
2021-08-06  9:38 ` [PATCH for-6.2 v3 02/12] mirror: Keep s->synced on error Max Reitz
2021-08-06  9:38 ` [PATCH for-6.2 v3 03/12] mirror: Drop s->synced Max Reitz
2021-08-06  9:38 ` [PATCH for-6.2 v3 04/12] job: Force-cancel jobs in a failed transaction Max Reitz
2021-08-06 19:22   ` Eric Blake [this message]
2021-09-01 10:08   ` Vladimir Sementsov-Ogievskiy
2021-08-06  9:38 ` [PATCH for-6.2 v3 05/12] job: @force parameter for job_cancel_sync{, _all}() Max Reitz
2021-08-06 19:39   ` Eric Blake
2021-08-09 10:09     ` Max Reitz
2021-09-01 10:20   ` [PATCH for-6.2 v3 05/12] job: @force parameter for job_cancel_sync{,_all}() Vladimir Sementsov-Ogievskiy
2021-09-01 12:49     ` Hanna Reitz
2021-09-01 11:04   ` Vladimir Sementsov-Ogievskiy
2021-09-01 12:50     ` Hanna Reitz
2021-08-06  9:38 ` [PATCH for-6.2 v3 06/12] jobs: Give Job.force_cancel more meaning Max Reitz
2021-08-06  9:38 ` [PATCH for-6.2 v3 07/12] job: Add job_cancel_requested() Max Reitz
2021-08-06 20:34   ` Eric Blake
2021-09-01 11:44   ` Vladimir Sementsov-Ogievskiy
2021-08-06  9:38 ` [PATCH for-6.2 v3 08/12] mirror: Use job_is_cancelled() Max Reitz
2021-08-06 20:35   ` Eric Blake
2021-09-01 11:45   ` Vladimir Sementsov-Ogievskiy
2021-08-06  9:38 ` [PATCH for-6.2 v3 09/12] mirror: Check job_is_cancelled() earlier Max Reitz
2021-08-06 20:36   ` Eric Blake
2021-09-01 12:11   ` Vladimir Sementsov-Ogievskiy
2021-08-06  9:38 ` [PATCH for-6.2 v3 10/12] mirror: Stop active mirroring after force-cancel Max Reitz
2021-08-06 20:37   ` Eric Blake
2021-09-01 12:16   ` Vladimir Sementsov-Ogievskiy
2021-08-06  9:38 ` [PATCH for-6.2 v3 11/12] mirror: Do not clear .cancelled Max Reitz
2021-08-06 20:42   ` Eric Blake
2021-09-01 12:22   ` Vladimir Sementsov-Ogievskiy
2021-08-06  9:38 ` [PATCH for-6.2 v3 12/12] iotests: Add mirror-ready-cancel-error test Max Reitz

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