Re: [PATCH 03/12] aio: make aio_context_acquire()/aio_context_release() a no-op

[Kevin Wolf]

Am 29.11.2023 um 20:55 hat Stefan Hajnoczi geschrieben:
> aio_context_acquire()/aio_context_release() has been replaced by
> fine-grained locking to protect state shared by multiple threads. The
> AioContext lock still plays the role of balancing locking in
> AIO_WAIT_WHILE() and many functions in QEMU either require that the
> AioContext lock is held or not held for this reason. In other words, the
> AioContext lock is purely there for consistency with itself and serves
> no real purpose anymore.
> 
> Stop actually acquiring/releasing the lock in
> aio_context_acquire()/aio_context_release() so that subsequent patches
> can remove callers across the codebase incrementally.
> 
> I have performed "make check" and qemu-iotests stress tests across
> x86-64, ppc64le, and aarch64 to confirm that there are no failures as a
> result of eliminating the lock.
> 
> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

YOLO.

Acked-by: Kevin Wolf <kwolf@redhat.com>