linux-kernel - Re: [patch 12/18] usb: mon nopage

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Message-Id: <20071205083925.c4a8ca64.zaitcev@redhat.com>
Date:	Wed, 5 Dec 2007 08:39:25 -0800
From:	Pete Zaitcev <zaitcev@...hat.com>
To:	npiggin@...e.de
Cc:	akpm@...ux-foundation.org, paolo.abeni@...il.it,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 12/18] usb: mon nopage

On Wed, 05 Dec 2007 18:15:59 +1100, npiggin@...e.de wrote:

> Convert USB mon driver from nopage to fault.

>  	if (offset >= rp->b_size)
> -		return NOPAGE_SIGBUS;
> +		return VM_FAULT_SIGBUS;
>  	chunk_idx = offset / CHUNK_SIZE;
>  	pageptr = rp->b_vec[chunk_idx].pg;
>  	get_page(pageptr);
> -	if (type)
> -		*type = VM_FAULT_MINOR;
> -	return pageptr;
> +	vmf->page = pageptr;
> +	return 0;

Looks like a trivial change, I ack this. It's a rarely used API, I have
to run tests to see how it works. I'll collect any failing pieces later
if any.

Signed-off-by: Pete Zaitcev <zaitcev@...hat.com>

-- Pete
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