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Re: [Qemu-block] [PATCH] block: Don't acquire AioContext in hmp_qemu_io(

From: Stefan Hajnoczi
Subject: Re: [Qemu-block] [PATCH] block: Don't acquire AioContext in hmp_qemu_io()
Date: Wed, 13 Dec 2017 10:26:14 +0000
User-agent: Mutt/1.9.1 (2017-09-22)

On Tue, Dec 12, 2017 at 02:48:00PM +0100, Kevin Wolf wrote:
> Commit 15afd94a047 added code to acquire and release the AioContext in
> qemuio_command(). This means that the lock is taken twice now in the
> call path from hmp_qemu_io(). This causes BDRV_POLL_WHILE() to hang for
> any requests issued to nodes in a non-mainloop AioContext.
> Dropping the first locking from hmp_qemu_io() fixes the problem.
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>  hmp.c | 6 ------
>  1 file changed, 6 deletions(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>

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