Re: [patch] cache flush bug in mm/filemap.c (all kernels >= 2.5.30(atleast))

[Mika Penttilä (mika.penttila@kolumbus.fi)]

ah, ok. so there are cache issues even if if the user pte is not 
established yet? Then it seems natural to couple flush_dcache_page with 
pte establishing, not at the driver level.

--Mika


David S. Miller wrote:

>   From: **UNKNOWN CHARSET** <mika.penttila@xxxxxxxxxxx>
>   Date: Mon, 26 May 2003 08:07:10 +0300
>
>   I don't think the flush_dcache_page thing is done almost anywhere in the 
>   block/driver level right now.
>
> It isn't and it shouldn't :-)
>
>   And we shouldn't be doing io reads to pagecache pages with user
>   mappings anyway normally. direct-io is a different thing.
>   
> We are talking about the case where we are bringing in the
> data for the first time, on the page cache lookup miss.
>
>  


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