ps3flash: Cache the last accessed FLASH chunk

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Add support for caching, to reduce FLASH wear when writing using small
blocksizes. As we also don't care anymore about heads and tails in case of
partial writes, this greatly simplifies the code for handling writes.

Note: We don't bother caching reads smaller than the FLASH chunk size
(256 KiB).

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Geert Uytterhoeven 2009-06-10 04:39:07 +00:00 • committed by Benjamin Herrenschmidt

parent a4e623fbc9

commit 6bd57f2e5d

1 changed files with 104 additions and 105 deletions

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drivers/char/ps3flash.c

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