[lkml]   [2006]   [Jan]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCHSET] block: fix PIO cache coherency bug
    On Sat, Jan 14 2006, 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.


    Patches looks good, it's good to get this hole closed. Thanks!

    Jens Axboe

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-01-13 16:39    [W:4.301 / U:0.432 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site