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block: add new BlockDriver handler: bdrv_cancel_in_flight

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It will be used to stop retrying NBD requests on mirror cancel.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210205163720.887197-2-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2021-02-05 19:37:11 +03:00 • committed by Eric Blake
parent c90e3512a4
commit bd54669a4a
3 changed files with 23 additions and 0 deletions
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11
block/io.c
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@ -3460,3 +3460,14 @@ out:
return ret;
}
void bdrv_cancel_in_flight(BlockDriverState *bs)
{
if (!bs || !bs->drv) {
return;
}
if (bs->drv->bdrv_cancel_in_flight) {
bs->drv->bdrv_cancel_in_flight(bs);
}
}