NFS calls aio_poll inside bdrv_get_allocated_size. This requires acquiring the AioContext.
Signed-off-by: Paolo Bonzini <[email protected]> --- block/qapi.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/block/qapi.c b/block/qapi.c index fecac25..ea400e0 100644 --- a/block/qapi.c +++ b/block/qapi.c @@ -210,11 +210,13 @@ void bdrv_query_image_info(BlockDriverState *bs, Error *err = NULL; ImageInfo *info; + aio_context_acquire(bdrv_get_aio_context(bs)); + size = bdrv_getlength(bs); if (size < 0) { error_setg_errno(errp, -size, "Can't get size of device '%s'", bdrv_get_device_name(bs)); - return; + goto out; } info = g_new0(ImageInfo, 1); @@ -281,10 +283,13 @@ void bdrv_query_image_info(BlockDriverState *bs, default: error_propagate(errp, err); qapi_free_ImageInfo(info); - return; + goto out; } *p_info = info; + +out: + aio_context_release(bdrv_get_aio_context(bs)); } /* @p_info will be set only on success. */ -- 2.5.0
