On Thu, Jul 14, 2005 at 10:18:28PM -0700, Badari Pulavarty wrote:
> I can imagine a reason for relaxing the alignment. I keep getting asked
> whether we can do "O_DIRECT mount option". Database folks wants to
> make sure all the access to files in a given filesystem are O_DIRECT
All currently existing "O_DIRECT mount option" implementations
that I know of do:
if (not-512-aligned)
bounce_buffer()
That is, no one attempts to support the wacky variations in DMA engines.
Joel
--
Brain: I shall pollute the water supply with this DNAdefibuliser,
turning everyone into mindless slaves.
Pinky: What about the people who drink bottled water?
Brain: Pinky, people who pay 5 dollars for a bottle of water are
already mindless slaves.
http://www.jlbec.org/
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