Eric W. Biederman wrote: > Pavel Emelianov <[EMAIL PROTECTED]> writes: > > >>Pages are charged to their first touchers which are >>determined using pages' mapcount manipulations in >>rmap calls. > > > NAK pages should be charged to every rss group whose mm_struct they > are mapped into. For these you essentially need per-container page->_mapcount counter, otherwise you can't detect whether rss group still has the page in question being mapped in its processes' address spaces or not.
1. This was discussed before and considered to be ok by all the resource management involved people. 2. this can be done with a-la page beancounters which are used in OVZ for shared fractions accounting. It's a next step forward. If you know how to get "pages should be charged to every rss group whose mm_struct they are mapped into" w/o additional pointer in struct page, please throw me an idea. Thanks, Kirill - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
