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    SubjectRe: O_DIRECT patch for processors with VIPT cache for mainline kernel (specifically arm in our case)
    2008/11/20 Nick Piggin <>:
    > [ ... ]
    > - The page is sent to the block layer, which stores into the page. Some
    > block devices like 'brd' will potentially store via the kernel linear map
    > here, and they probably don't do enough cache flushing.

    btw., if someone is curious, here is another case of what may happen
    on VIPT systems when someone uses a "virtual" block device (like
    'brd') as, heh, a swap :-)

    Best regards,
    Dmitry Adamushko

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      Last update: 2008-11-20 13:31    [W:0.020 / U:1.380 seconds]
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