Messages in this thread | | | Date | Sat, 24 Feb 2007 03:56:34 -0600 | From | "V P" <> | Subject | REQ_HARDBARRIER and REQ_SOFTBARRIER |
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Hi,
I'm trying to modify the ordering of I/O requests in Linux kernel, and came across the barrier flags REQ_HARDBARRIER and REQ_SOFTBARRIER.
One thing I noticed (which might be wrong) is that all the requests have both these flags set. What is the significance of these flags? Is it a must for a request to have this? Can I reorder two requests with these flags set? How is SOFTBARRIER different from HARDBARRIER?
I appreciate your time and help.
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