Re: [PATCH 1/5] multipathd: move set_no_path_retry() back to libmultipath

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On Fri, Nov 15, 2019 at 02:41:46PM +0000, Martin Wilck wrote:
> From: Martin Wilck <mwilck@xxxxxxxx>
> 
> This function is useful elsewhere, too. No code changes except
> for changing the linkage.
> 
Reviewed-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
> Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
> ---
>  libmultipath/structs_vec.c | 30 ++++++++++++++++++++++++++++++
>  libmultipath/structs_vec.h |  1 +
>  multipathd/main.c          | 30 ------------------------------
>  3 files changed, 31 insertions(+), 30 deletions(-)
> 
> diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
> index 6991f9ac..fbe97662 100644
> --- a/libmultipath/structs_vec.c
> +++ b/libmultipath/structs_vec.c
> @@ -308,6 +308,36 @@ void enter_recovery_mode(struct multipath *mpp)
>  		mpp->alias, mpp->no_path_retry);
>  }
>  
> +void set_no_path_retry(struct multipath *mpp)
> +{
> +	char is_queueing = 0;
> +
> +	mpp->nr_active = pathcount(mpp, PATH_UP) + pathcount(mpp, PATH_GHOST);
> +	if (mpp->features && strstr(mpp->features, "queue_if_no_path"))
> +		is_queueing = 1;
> +
> +	switch (mpp->no_path_retry) {
> +	case NO_PATH_RETRY_UNDEF:
> +		break;
> +	case NO_PATH_RETRY_FAIL:
> +		if (is_queueing)
> +			dm_queue_if_no_path(mpp->alias, 0);
> +		break;
> +	case NO_PATH_RETRY_QUEUE:
> +		if (!is_queueing)
> +			dm_queue_if_no_path(mpp->alias, 1);
> +		break;
> +	default:
> +		if (mpp->nr_active > 0) {
> +			mpp->retry_tick = 0;
> +			if (!is_queueing)
> +				dm_queue_if_no_path(mpp->alias, 1);
> +		} else if (is_queueing && mpp->retry_tick == 0)
> +			enter_recovery_mode(mpp);
> +		break;
> +	}
> +}
> +
>  void
>  sync_map_state(struct multipath *mpp)
>  {
> diff --git a/libmultipath/structs_vec.h b/libmultipath/structs_vec.h
> index f8b9f63e..d3219278 100644
> --- a/libmultipath/structs_vec.h
> +++ b/libmultipath/structs_vec.h
> @@ -11,6 +11,7 @@ struct vectors {
>  	vector mpvec;
>  };
>  
> +void set_no_path_retry(struct multipath *mpp);
>  void enter_recovery_mode(struct multipath *mpp);
>  
>  int adopt_paths (vector pathvec, struct multipath * mpp);
> diff --git a/multipathd/main.c b/multipathd/main.c
> index bb5c1f1d..a21d96e4 100644
> --- a/multipathd/main.c
> +++ b/multipathd/main.c
> @@ -409,36 +409,6 @@ set_multipath_wwid (struct multipath * mpp)
>  	dm_get_uuid(mpp->alias, mpp->wwid, WWID_SIZE);
>  }
>  
> -static void set_no_path_retry(struct multipath *mpp)
> -{
> -	char is_queueing = 0;
> -
> -	mpp->nr_active = pathcount(mpp, PATH_UP) + pathcount(mpp, PATH_GHOST);
> -	if (mpp->features && strstr(mpp->features, "queue_if_no_path"))
> -		is_queueing = 1;
> -
> -	switch (mpp->no_path_retry) {
> -	case NO_PATH_RETRY_UNDEF:
> -		break;
> -	case NO_PATH_RETRY_FAIL:
> -		if (is_queueing)
> -			dm_queue_if_no_path(mpp->alias, 0);
> -		break;
> -	case NO_PATH_RETRY_QUEUE:
> -		if (!is_queueing)
> -			dm_queue_if_no_path(mpp->alias, 1);
> -		break;
> -	default:
> -		if (mpp->nr_active > 0) {
> -			mpp->retry_tick = 0;
> -			if (!is_queueing)
> -				dm_queue_if_no_path(mpp->alias, 1);
> -		} else if (is_queueing && mpp->retry_tick == 0)
> -			enter_recovery_mode(mpp);
> -		break;
> -	}
> -}
> -
>  int __setup_multipath(struct vectors *vecs, struct multipath *mpp,
>  		      int reset)
>  {
> -- 
> 2.24.0

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