[PATCH] NAND subpage read feature as a way to increase performance. Take 2.

[Artem Bityutskiy]

On Thu, 2008-05-15 at 17:23 +0100, Alexey Korolev wrote:
> Hi, 
> 
> This patch enables NAND subpage read functionality. 
> If upper layer drivers are requesting to read non page aligned data NAND
> subpage-read functionality reads the only whose ECC regions which include
> requested data when original code reads whole page.
> This significantly improves performance in many cases. 
> 
> Here are some digits :
> 
> UBI volume mount time
> No subpage reads: 5.75 seconds
> Subpage read patch: 2.42 seconds
> 
> Open/stat time for files on JFFS2 volume:
> No subpage read  0m 5.36s
> Subpage read     0m 2.88s
> 
> Signed-off-by Alexey Korolev <akorolev at infradead.org>
> -------------------------

Looks good to me,
Acked-by Artem Bityutskiy <dedekind at infradead.org>

Thanks!

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)