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Re: [Qemu-block] [Qemu-devel] [PATCH 3/5] coroutine-lock: convert CoQueu

From: Richard Henderson
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH 3/5] coroutine-lock: convert CoQueue to use QemuLockable
Date: Sat, 3 Feb 2018 12:50:58 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2

On 02/03/2018 07:39 AM, Paolo Bonzini wrote:
> There are cases in which a queued coroutine must be restarted from
> non-coroutine context (with qemu_co_enter_next).  In this cases,
> qemu_co_enter_next also needs to be thread-safe, but it cannot use
> a CoMutex and so cannot qemu_co_queue_wait.  Use QemuLockable so
> that the CoQueue can interchangeably use CoMutex or QemuMutex.
> Reviewed-by: Stefan Hajnoczi <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
>  include/qemu/coroutine.h   |  6 +++++-
>  util/qemu-coroutine-lock.c | 12 +++++++-----
>  2 files changed, 12 insertions(+), 6 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


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