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From: Stefan Hajnoczi <stefanha@gmail.com>
To: Peter Lieven <pl@kamp.de>
Cc: kwolf@redhat.com, famz@redhat.com, benoit@irqsave.net,
	ming.lei@canonical.com, armbru@redhat.com, qemu-devel@nongnu.org,
	stefanha@redhat.com, pbonzini@redhat.com, mreitz@redhat.com
Subject: Re: [Qemu-devel] [RFC PATCH 3/3] qemu-coroutine: use a ring per thread for the pool
Date: Fri, 28 Nov 2014 12:40:57 +0000	[thread overview]
Message-ID: <20141128124057.GH13631@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <1417084026-12307-4-git-send-email-pl@kamp.de>

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On Thu, Nov 27, 2014 at 11:27:06AM +0100, Peter Lieven wrote:
> diff --git a/iothread.c b/iothread.c
> index 342a23f..b53529b 100644
> --- a/iothread.c
> +++ b/iothread.c
> @@ -15,6 +15,7 @@
>  #include "qom/object_interfaces.h"
>  #include "qemu/module.h"
>  #include "block/aio.h"
> +#include "block/coroutine.h"
>  #include "sysemu/iothread.h"
>  #include "qmp-commands.h"
>  #include "qemu/error-report.h"
> @@ -47,6 +48,8 @@ static void *iothread_run(void *opaque)
>          }
>          aio_context_release(iothread->ctx);
>      }
> +
> +    coroutine_pool_cleanup();
>      return NULL;
>  }

The assumption here is that iothread_run() is the only thread function
that uses coroutines.

If another thread uses coroutines the pool will leak :(.  This is one of
the challenges of thread-local storage.

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      parent reply	other threads:[~2014-11-28 12:41 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-27 10:27 [Qemu-devel] [RFC PATCH 0/3] qemu-coroutine: use a ring per thread for the pool Peter Lieven
2014-11-27 10:27 ` [Qemu-devel] [RFC PATCH 1/3] Revert "coroutine: make pool size dynamic" Peter Lieven
2014-11-28 12:42   ` Stefan Hajnoczi
2014-11-28 12:45     ` Peter Lieven
2014-11-27 10:27 ` [Qemu-devel] [RFC PATCH 2/3] block/block-backend.c: remove coroutine pool reservation Peter Lieven
2014-11-27 10:27 ` [Qemu-devel] [RFC PATCH 3/3] qemu-coroutine: use a ring per thread for the pool Peter Lieven
2014-11-27 16:40   ` Paolo Bonzini
2014-11-28  8:13     ` Peter Lieven
     [not found]       ` <54784E55.6060405@redhat.com>
2014-11-28 10:37         ` Peter Lieven
2014-11-28 11:14           ` Paolo Bonzini
2014-11-28 11:21             ` Peter Lieven
2014-11-28 11:23               ` Paolo Bonzini
2014-11-28 11:27                 ` Peter Lieven
2014-11-28 11:32                 ` Peter Lieven
2014-11-28 11:46                   ` Peter Lieven
2014-11-28 12:26                     ` Paolo Bonzini
2014-11-28 12:39                       ` Peter Lieven
2014-11-28 12:45                         ` Paolo Bonzini
2014-11-28 12:49                           ` Peter Lieven
2014-11-28 12:56                             ` Paolo Bonzini
2014-11-28 13:17                           ` Peter Lieven
2014-11-28 14:17                             ` Paolo Bonzini
2014-11-28 20:11                               ` Peter Lieven
2014-11-28 13:13                         ` Peter Lieven
2014-11-28 12:21                   ` Paolo Bonzini
2014-11-28 12:26                     ` Peter Lieven
2014-11-28 12:40   ` Stefan Hajnoczi [this message]

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