Commits
Stefan Hajnoczi authored 5fa78b2a1ca
dma-helpers: dma_blk_io() cancel support Attempting to cancel a dma_blk_io() request causes an abort(3): void bdrv_aio_cancel(BlockAIOCB *acb) { ... while (acb->refcnt > 1) { if (acb->aiocb_info->get_aio_context) { aio_poll(acb->aiocb_info->get_aio_context(acb), true); } else if (acb->bs) { aio_poll(bdrv_get_aio_context(acb->bs), true); } else { abort(); } } ... } This happens because DMAAIOCB->bs is NULL and dma_aiocb_info.get_aio_context() is also NULL. This patch trivially implements dma_aiocb_info.get_aio_context() by fetching the DMAAIOCB->ctx field. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 1466451417-27988-1-git-send-email-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>