Re: [Qemu-devel] [PATCH v2] aio-posix: Fix return value of aio_poll()

[Stefan Hajnoczi <stefanha@redhat.com>]

On Wed, Jan 16, 2013 at 07:25:51PM +0100, Kevin Wolf wrote:
> aio_poll() must return true if any work is still pending, even if it
> didn't make progress, so that bdrv_drain_all() doesn't stop waiting too
> early. The possibility of stopping early occasionally lead to a failed
> assertion in bdrv_drain_all(), when some in-flight request was missed
> and the function didn't really drain all requests.
> 
> In order to make that change, the return value as specified in the
> function comment must change for blocking = false; fortunately, the
> return value of blocking = false callers is only used in test cases, so
> this change shouldn't cause any trouble.
> 
> Cc: qemu-stable@nongnu.org
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
>  aio-posix.c         |    3 ++-
>  aio-win32.c         |    3 ++-
>  include/block/aio.h |    6 ++----
>  tests/test-aio.c    |    4 ++--
>  4 files changed, 8 insertions(+), 8 deletions(-)

Changed "aio-posix" to "aio" in commit message.

Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan