Messages in this thread | | | Subject | Re: Wrong DIF guard tag on ext2 write | From | "Martin K. Petersen" <> | Date | Thu, 03 Jun 2010 21:34:18 -0400 |
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>>>>> "Dave" == Dave Chinner <david@fromorbit.com> writes:
Dave> If you are running DIF hardware, then XFS is only OK for direct Dave> IO. XFS will still get torn writes if you are overwriting Dave> buffered data (either by write() or mmap()) because there are no Dave> interlocks to prevent cached pages under writeback from being Dave> modified while DMA is being performed.....
Didn't you use to wait_on_page_writeback() in page_mkwrite()?
-- Martin K. Petersen Oracle Linux Engineering
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