On Mon, 2015-03-16 at 15:07 +0100, Oleg Nesterov wrote: > 3. and we can remove down_write(mmap_sem) from prctl paths. > > Actually we can do this even without xchg() above, but we might > want to kill MMF_EXE_FILE_CHANGED and test_and_set_bit() check. Yeah I was waiting for security folks input about this, otherwise this still doesn't do it for me as we still have to deal with mmap_sem. -- 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>