Re: [PATCH] zero_user_page uses in fs/buffer.c and fs/libfs.c

[Christoph Lameter]

On Tue, 1 May 2007, Andrew Morton wrote:

> As Satyam said, this will sometimes cause us to map and unmap the page
> twice, and to run flush_dcache_page() twice.  In not-terribly-uncommon
> circumstances in very frequently called functions.
> 
> Doesn't seem worth it to me.

Ok but we have that code three times. Should I add a variant of 
zero_user_page that zeroes everything but the section specified?

zero_user_page_allbut() ?

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