Alexey Korolev 3d45955962 [MTD] [NAND] subpage read feature as a way to increase performance. ...

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@infradead.org>
Acked-by: Artem Bityutskiy <dedekind@infradead.org>
Acked-by: Jörn Engel <joern@logfs.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

2008-07-25 10:49:50 -04:00

..

bbm.h

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blktrans.h

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cfi_endian.h

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cfi.h

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compatmac.h

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concat.h

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doc2000.h

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flashchip.h

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ftl.h

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gen_probe.h

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inftl.h

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map.h

Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6

2008-07-25 10:40:14 -04:00

mtd.h

Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6

2008-07-25 10:40:14 -04:00

mtdram.h

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nand_ecc.h

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nand.h

[MTD] [NAND] subpage read feature as a way to increase performance.

2008-07-25 10:49:50 -04:00

ndfc.h

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nftl.h

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onenand_regs.h

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onenand.h

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partitions.h

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physmap.h

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plat-ram.h

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pmc551.h

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super.h

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ubi.h

UBI: amend commentaries

2008-07-24 13:32:56 +03:00

xip.h

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