On 10/07/2013 04:41 PM, John Stultz wrote: > > You mark a chunk of memory as volatile, then at some point later, mark > its as non-volatile. The purge state tells you if the memory is still > there, or if we threw it out due to memory pressure. This lets the > application regnerate the purged data before continuing on. > And wouldn't this apply to MADV_DONTNEED just as well? Perhaps what we should do is an enhanced madvise() call? -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>