[libvirt] [PATCH] Daemonize fuse thread in libvirt_lxc

Gao feng gaofeng at cn.fujitsu.com
Mon Mar 11 01:11:12 UTC 2013


On 2013/03/08 03:02, Daniel P. Berrange wrote:
> From: "Daniel P. Berrange" <berrange at redhat.com>
> 
> In some startup failure modes, the fuse thread may get itself
> wedged. This will cause the entire libvirt_lxc process to
> hang trying to the join the thread. There is no compelling
> reason to wait for the thread to exit if the whole process
> is exiting, so kust daemonize the fus thread instead.
> 
> Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> ---

ACK.

Thanks!

>  src/lxc/lxc_fuse.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/src/lxc/lxc_fuse.c b/src/lxc/lxc_fuse.c
> index b6808da..c4be58e 100644
> --- a/src/lxc/lxc_fuse.c
> +++ b/src/lxc/lxc_fuse.c
> @@ -320,7 +320,7 @@ int lxcSetupFuse(virLXCFusePtr *f, virDomainDefPtr def)
>          goto cleanup1;
>      }
>  
> -    if (virThreadCreate(&fuse->thread, true, lxcFuseRun,
> +    if (virThreadCreate(&fuse->thread, false, lxcFuseRun,
>                          (void *)fuse) < 0) {
>          lxcFuseDestroy(fuse);
>          goto cleanup1;
> @@ -351,8 +351,6 @@ void lxcFreeFuse(virLXCFusePtr *f)
>              fuse_exit(fuse->fuse);
>          virMutexUnlock(&fuse->lock);
>  
> -        virThreadJoin(&fuse->thread);
> -
>          VIR_FREE(fuse->mountpoint);
>          VIR_FREE(*f);
>      }
> 




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