Re: [PATCH v2] Avoid possible hang on device removal

[Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>]

[-- Attachment #1: Type: text/plain, Size: 1315 bytes --]

On Tue, Oct 25, 2016 at 06:35:57PM -0500, Mustafa Ismail wrote:
> When we get an RDMA_CM_EVENT_DEVICE_REMOVAL the cm_thread will
> exit and because flush errors are ignored the cb->sem may not get signaled.
> So just signal on device removal event.
>
> v1 -> v2: Add Fixes tag
>
> Fixes: 612eae1f6fe3 ("rping: ignore flushed completions")
> Signed-off-by: Mustafa Ismail <mustafa.ismail-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Thanks applied,
I changed a little bit commit message, please take a look on it.
https://github.com/linux-rdma/rdma-core/pull/28

> ---
>  librdmacm/examples/rping.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/librdmacm/examples/rping.c b/librdmacm/examples/rping.c
> index ad38f6d..53c1525 100644
> --- a/librdmacm/examples/rping.c
> +++ b/librdmacm/examples/rping.c
> @@ -224,6 +224,8 @@ static int rping_cma_event_handler(struct rdma_cm_id *cma_id,
>
>  	case RDMA_CM_EVENT_DEVICE_REMOVAL:
>  		fprintf(stderr, "cma detected device removal!!!!\n");
> +		cb->state = ERROR;
> +		sem_post(&cb->sem);
>  		ret = -1;
>  		break;
>
> --
> 2.7.4
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 819 bytes --]