On 10/07/2013 05:13 PM, Minchan Kim wrote: >> >> The point is that MADV_DONTNEED is very similar in that sense, >> especially if allowed to be lazy. It makes a lot of sense to permit >> both scrubbing modes orthogonally. >> >> The point you're making has to do with withdrawal of permission to flush >> on demand, which is a result of having the lazy mode (ongoing >> permission) and having to be able to withdraw such permission. > > I'm sorry I could not understand what you wanted to say. > Could you elaborate a bit? > Basically, you need this because of MADV_LAZY or the equivalent, so it would be applicable to a similar variant of madvise(). As such I would suggest that an madvise4() call would be appropriate. -hpa -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>