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rbd: use BlockDriverState's AioContext 

Drop the assumption that we're using the main AioContext.  Convert
qemu_bh_new() to aio_bh_new() and qemu_aio_wait() to aio_poll().

The .bdrv_detach_aio_context() and .bdrv_attach_aio_context() interfaces
are not needed since no fd handlers, timers, or BHs stay registered when
requests have been drained.

Cc: Josh Durgin <josh.durgin@inktank.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Stefan Hajnoczi 2014-05-08 16:34:51 +02:00
parent 85ebd381fd
commit ea80019149
1 changed files with 3 additions and 2 deletions
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5
block/rbd.c
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@ -555,7 +555,7 @@ static void qemu_rbd_aio_cancel(BlockDriverAIOCB *blockacb)
acb->cancelled = 1;
while (acb->status == -EINPROGRESS) {
qemu_aio_wait();
aio_poll(bdrv_get_aio_context(acb->common.bs), true);
}
qemu_aio_release(acb);
@ -588,7 +588,8 @@ static void rbd_finish_aiocb(rbd_completion_t c, RADOSCB *rcb)
rcb->ret = rbd_aio_get_return_value(c);
rbd_aio_release(c);
acb->bh = qemu_bh_new(rbd_finish_bh, rcb);
acb->bh = aio_bh_new(bdrv_get_aio_context(acb->common.bs),
rbd_finish_bh, rcb);
qemu_bh_schedule(acb->bh);
}