linux-kernel - Re: [PATCH v1 1/7] xen-blkback: print stats about persistent grants

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Date:	Tue, 9 Apr 2013 10:47:41 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Roger Pau Monne <roger.pau@...rix.com>
Cc:	linux-kernel@...r.kernel.org, xen-devel@...ts.xen.org
Subject: Re: [PATCH v1 1/7] xen-blkback: print stats about persistent grants

On Wed, Mar 27, 2013 at 12:10:37PM +0100, Roger Pau Monne wrote:
> Signed-off-by: Roger Pau Monné <roger.pau@...rix.com>
> Cc: xen-devel@...ts.xen.org
> Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>

Looks good.
> ---
>  drivers/block/xen-blkback/blkback.c |    6 ++++--
>  1 files changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
> index dd5b2fe..f7526db 100644
> --- a/drivers/block/xen-blkback/blkback.c
> +++ b/drivers/block/xen-blkback/blkback.c
> @@ -382,10 +382,12 @@ irqreturn_t xen_blkif_be_int(int irq, void *dev_id)
>  static void print_stats(struct xen_blkif *blkif)
>  {
>  	pr_info("xen-blkback (%s): oo %3llu  |  rd %4llu  |  wr %4llu  |  f %4llu"
> -		 "  |  ds %4llu\n",
> +		 "  |  ds %4llu | pg: %4u/%4u\n",
>  		 current->comm, blkif->st_oo_req,
>  		 blkif->st_rd_req, blkif->st_wr_req,
> -		 blkif->st_f_req, blkif->st_ds_req);
> +		 blkif->st_f_req, blkif->st_ds_req,
> +		 blkif->persistent_gnt_c,
> +		 max_mapped_grant_pages(blkif->blk_protocol));
>  	blkif->st_print = jiffies + msecs_to_jiffies(10 * 1000);
>  	blkif->st_rd_req = 0;
>  	blkif->st_wr_req = 0;
> -- 
> 1.7.7.5 (Apple Git-26)
> 
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