Messages in this thread | | | Date | Mon, 07 Feb 2005 13:19:36 -0800 | From | Zach Brown <> | Subject | Re: [Patch] invalidate range of pages after direct IO write |
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>> But this won't happen if next >>started as 0 and we didn't update it. I don't know if retrying is the >>intended behaviour or if we care that the start == 0 case doesn't do it. > > > Good point. Let's make it explicit?
Looks great. I briefly had visions of some bitfield to pack the three boolean ints we have and then quickly came to my senses. :)
I threw together those other two patches that work with ranges around direct IO. (unmaping before r/w and writing and waiting before reads). rc3-mm1 is angry with my test machine so they're actually against current -bk with this first invalidation patch applied. I hope that doesn't make life harder than it needs to be. I'll send them under seperate cover.
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