Re: [Qemu-devel] [PATCH for-2.1? 0/2] thread-pool: avoid fd usage and fix nested aio_poll() deadlock

[Christian Borntraeger]

On 11/07/14 13:20, Stefan Hajnoczi wrote:
> These patches convert thread-pool.c from EventNotifier to QEMUBH.  They then
> solve the deadlock when nested aio_poll() calls are made.
> 
> Please speak out whether you want this in QEMU 2.1 or not.  I'm not aware of
> the nested aio_poll() deadlock ever having been reported, so maybe we can 
> defer
> to QEMU 2.2.
> 
> Stefan Hajnoczi (2):
>   thread-pool: avoid per-thread-pool EventNotifier
>   thread-pool: avoid deadlock in nested aio_poll() calls
> 
>  thread-pool.c | 44 +++++++++++++++++++++++++++++++-------------
>  1 file changed, 31 insertions(+), 13 deletions(-)
> 

Seems to work ok and saves an fd. I think its still better scheduled for 2.2

Christian