Re: [Qemu-devel] [QEMU-devel][PATCH v4 0/2] Fix concurrent aio_poll/set_fd_handler.

[remy.noel@blade-group.com]

On Thu, Dec 20, 2018 at 04:20:28PM +0100, Remy Noel wrote:
>From: Remy Noel <remy.noel@blade-group.com>
>
>It is possible for an io_poll/read/write callback to be concurrently executed along
>with an aio_set_fd_handlers. This can cause all sorts of problems, like
>a NULL callback or a bad opaque pointer.
>
>V2:
>    * Do not use RCU anymore as it inccurs a performance loss
>V3:
>    * Don't drop revents when a handler is modified [Stefan]
>V4:
>    * Unregister fd from ctx epoll when removing fd_handler [Paolo]
>
>Remy Noel (2):
>  aio-posix: Unregister fd from ctx epoll when removing fd_handler.
>  aio-posix: Fix concurrent aio_poll/set_fd_handler.
>
> util/aio-posix.c | 90 +++++++++++++++++++++++++++++-------------------
> util/aio-win32.c | 67 ++++++++++++++++-------------------
> 2 files changed, 84 insertions(+), 73 deletions(-)
>
>-- 
>2.19.2
>
ping.

Does it needs anything for getting queued ?

Thanks.

Remy.