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

[remy . noel]

From: Remy Noel <address@hidden>

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