Re: Wrong DIF guard tag on ext2 write

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

 



On 06/07/2010 07:20 PM, Martin K. Petersen wrote:
>>>>>> "Dave" == Dave Chinner <david@xxxxxxxxxxxxx> writes:
> 
>>> Didn't you use to wait_on_page_writeback() in page_mkwrite()?
> 
> Dave> The generic implementation of ->page_mkwrite
> Dave> (block_page_mkwrite()) which XFS uses has never had a
> Dave> wait_on_page_writeback() call in it.  There's no call in the
> Dave> generic write paths, either, hence my comment that only direct IO
> Dave> on XFS will work.
> 
> I guess that wait_on_page_writeback() was something I added when I used
> XFS for DIF testing.
> 

Do you remember some performance numbers that show degradation / sameness?

What type of work loads?

Thanks
Boaz
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux