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    SubjectRe: [PATCHSET] block: fix PIO cache coherency bug
    On 1/13/06, Tejun Heo <> wrote:
    > Hello, all.
    > This patchset tries to fix data corruption bug caused by not handling
    > cache coherency during block PIO. This patch implements
    > blk_kmap/unmap helpers which take extra @dir argument and perform
    > appropriate coherency actions. These are to block PIO what dma_map/
    > unmap are to block DMA transfers.
    > IDE, libata, SCSI, rd and md are converted. Still left are nbd, loop
    > and pktcddvd. If I missed something, please let me know.
    > Russell, can you please test whether this fixes the bug on arm? If
    > this fixes the bug and people agree with the approach, I'll follow up
    > with patches for yet unconverted drivers and documentation update.

    Looks fine, if it works you can add Acked-by: to the IDE patch.

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      Last update: 2006-01-13 16:49    [W:0.030 / U:2.972 seconds]
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