Re: [PATCH] xip: export xip_file_fault
From: Marco Stornelli
Date: Sat Sep 17 2011 - 11:13:44 EST
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@xxxxxxxxx>
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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/