> I'm not liking this, its not a constant operation as the name implies. OK, I'll think of something better. > And it style is a bit out of line with the rest of rmap. > > The thing it actually does is page_mkclean(), all it doesn't do is > setting the pte read-only. > > I can understand you wanting to avoid the overhead of the minor faults > resulting from using page_mkclean(), but I'm not sure its worth it. It would be nice if the cost of MS_ASYNC wouldn't be too high. And I do have the feeling that minor faults are far more expensive than cleaning the dirty bit in the ptes. Do you have any numbers? Thanks, Miklos - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
