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From: Joe Perches <joe@perches.com>
To: Markus Pargmann <mpa@pengutronix.de>
Cc: nbd-general@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 6/9] nbd: Restructure debugging prints
Date: Thu, 12 Feb 2015 13:08:48 -0800	[thread overview]
Message-ID: <1423775328.15343.38.camel@perches.com> (raw)
In-Reply-To: <1423774657-12748-7-git-send-email-mpa@pengutronix.de>

On Thu, 2015-02-12 at 21:57 +0100, Markus Pargmann wrote:
> dprintk has some name collisions with other frameworks and drivers. It
> is also not necessary to have these custom debug print filters. Dynamic
> debug offers the same amount of filtered debugging.
> 
> This patch replaces all dprintks with dev_dbg(). It also removes the
> ioctl dprintk which prints the ingoing ioctls which should be
> replaceable by strace or similar stuff.

Perhaps add

#define nbd_dbg(nbd, fmt, ...)					\
	dev_dbg(disk_to_dev((nbd)->disk), "%s: " fmt,		\
		nbd->disk->disk_name, ##__VA_ARGS__)

(or function with %pV)

> diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
[]
> +static void nbd_end_request(struct nbd_device *nbd, struct request *req)
>  {
>  	int error = req->errors ? -EIO : 0;
>  	struct request_queue *q = req->q;
>  	unsigned long flags;
>  
> -	dprintk(DBG_BLKDEV, "%s: request %p: %s\n", req->rq_disk->disk_name,
> -			req, error ? "failed" : "done");
> +	dev_dbg(disk_to_dev(nbd->disk), "%s: request %p: %s\n",
> +		req->rq_disk->disk_name, req, error ? "failed" : "done");

so this becomes

	nbd_dbg(nbd, "request %p: %s\n",
		req, error ? "failed" : "done");

> @@ -276,11 +239,9 @@ static int nbd_send_req(struct nbd_device *nbd, struct request *req)
>  	}
>  	memcpy(request.handle, &req, sizeof(req));
>  
> -	dprintk(DBG_TX, "%s: request %p: sending control (%s@%llu,%uB)\n",
> -			nbd->disk->disk_name, req,
> -			nbdcmd_to_ascii(nbd_cmd(req)),
> -			(unsigned long long)blk_rq_pos(req) << 9,
> -			blk_rq_bytes(req));
> +	dev_dbg(disk_to_dev(nbd->disk), "%s: request %p: sending control (%s@%llu,%uB)\n",
> +		nbd->disk->disk_name, req, nbdcmd_to_ascii(nbd_cmd(req)),
> +		(unsigned long long)blk_rq_pos(req) << 9, blk_rq_bytes(req));

	nbd_dbg(nbd, "request %p: sending control (%s@%llu,%uB)\n",
		req, nbdcmd_to_ascii(nbd_cmd(req)),
		(unsigned long long)blk_rq_pos(req) << 9, blk_rq_bytes(req));

> @@ -300,8 +261,8 @@ static int nbd_send_req(struct nbd_device *nbd, struct request *req)
>  			flags = 0;
>  			if (!rq_iter_last(bvec, iter))
>  				flags = MSG_MORE;
> -			dprintk(DBG_TX, "%s: request %p: sending %d bytes data\n",
> -					nbd->disk->disk_name, req, bvec.bv_len);
> +			dev_dbg(disk_to_dev(nbd->disk), "%s: request %p: sending %d bytes data\n",
> +				nbd->disk->disk_name, req, bvec.bv_len);

etc...



  reply	other threads:[~2015-02-12 21:08 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-12 20:57 [PATCH 0/9] nbd: cleanups Markus Pargmann
2015-02-12 20:57 ` [PATCH 1/9] Documentation: nbd: Reformat to allow more documentation Markus Pargmann
2015-02-12 20:57 ` [PATCH 2/9] Documentation: nbd: Add list of module parameters Markus Pargmann
2015-02-14 10:29   ` [Nbd] " Wouter Verhelst
2015-02-15 21:53     ` Markus Pargmann
2015-02-12 20:57 ` [PATCH 3/9] nbd: Remove kernel internal header Markus Pargmann
2015-02-14 10:30   ` [Nbd] " Wouter Verhelst
2015-02-15 21:56     ` Markus Pargmann
2015-02-12 20:57 ` [PATCH 4/9] nbd: Replace kthread_create with kthread_run Markus Pargmann
2015-02-12 20:57 ` [PATCH 5/9] nbd: Fix device bytesize type Markus Pargmann
2015-02-12 20:57 ` [PATCH 6/9] nbd: Restructure debugging prints Markus Pargmann
2015-02-12 21:08   ` Joe Perches [this message]
2015-02-13  9:58     ` Markus Pargmann
2015-02-13 10:05       ` Joe Perches
2015-02-13 11:24         ` Markus Pargmann
2015-02-13 11:48           ` Joe Perches
2015-02-15 22:20             ` Markus Pargmann
2015-02-16  0:06               ` Joe Perches
2015-02-12 20:57 ` [PATCH 7/9] nbd: Remove fixme that was already fixed Markus Pargmann
2015-02-12 20:57 ` [PATCH 8/9] nbd: Return error code directly Markus Pargmann
2015-02-12 20:57 ` [PATCH 9/9] nbd: Return error pointer directly Markus Pargmann
2015-04-02  8:11 [PULL] NBD patches for 4.1 Markus Pargmann
2015-04-02  8:11 ` [PATCH 6/9] nbd: Restructure debugging prints Markus Pargmann

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