linux-kernel - Re: [PATCH] xip: export xip_file

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Message-ID: <4E74B7A9.1070001@gmail.com>
Date:	Sat, 17 Sep 2011 17:07:21 +0200
From:	Marco Stornelli <marco.stornelli@...il.com>
To:	Christoph Hellwig <hch@...radead.org>
CC:	Linux FS Devel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xip: export xip_file_fault

Il 17/09/2011 15:53, Christoph Hellwig ha scritto:
> On Sat, Sep 17, 2011 at 02:18:11PM +0200, Marco Stornelli wrote:
>> From: Marco Stornelli<marco.stornelli@...il.com>
>>
>> There aren't sufficient sync points for a fs for xip operations. In
>> particular for the mmap case. It can be not sufficient to lock/unlock
>> to do some operation inside get_xip_mem callback. For xip_file_read
>> it's really easy to write a fs specific wrapper, xip_file_write hold
>> i_mutex so no problem. With this patch it's possible to reuse the
>> generic xip_file_fault, using a wrapper function in a fs, without to
>> reinvent the wheel.
>
> As usual please send patches to add exports only while adding callers
> for it.
>
>

Actually the module is not currently in mainline even if I hope soon. No 
problem. I'll resend it at the right moment.

Marco
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