On Thu, Jul 03, 2014 at 05:52:13PM -0400, Naoya Horiguchi wrote: > This patch provides a new system call fincore(2), which provides mincore()- > like information, i.e. page residency of a given file. But unlike mincore(), > fincore() has a mode flag which allows us to extract detailed information > about page cache like pfn and page flag. This kind of information is very > helpful, for example when applications want to know the file cache status > to control the IO on their own way. It's still a nasty multiplexer for multiple different reporting formats in a single system call. How about your really just do a fincore that mirrors mincore instead of piggybacking exports of various internal flags (tags and page flags onto it. -- 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>