Re: [PATCHSET] block: fix PIO cache coherency bug

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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.

Tejun,

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 [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux