On Thu, 2005-07-14 at 16:16, Badari Pulavarty wrote: > How does your patch ensures that we meet the driver alignment > restrictions ? Like you said, you need atleast "even" byte alignment > for IDE etc.. > > And also, are there any restrictions on how much the "minimum" IO > size has to be ? I mean, can I read "1" byte ? I guess you are > not relaxing it (yet).. >
This patch does not change the i/o size requirements -- they must be a multiple of device block size (usually 512). It only relaxes the address alignment restriction. I do not know what the driver alignment restrictions are. Without the 1st patch, it was impossible to relax the address space check and have direct-io generate the correct i/o's to submit. This 2nd patch, is just for testing and generating feedback to find out what the address alignment issues are. Then we can decide how to proceed. Did you look over the 1st patch? Comments? Thanks, Daniel - 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/
