On 3/3/15 21:45, Michal Hocko wrote: > On Tue 03-03-15 06:42:01, Chen Gang wrote: >> When !MMU, it will report warning. The related warning with allmodconfig >> under c6x: > > Does it even make any sense to enable CONFIG_MEMCG when !CONFIG_MMU? > Is anybody using this configuration and is it actually usable? My > knowledge about CONFIG_MMU is close to zero so I might be missing > something but I do not see a point into fixing compile warnings when > the whole subsystem is not usable in the first place. > For me, only according to the current code, the original author assumes CONFIG_MEMCG can still have effect when !CONFIG_MMU: "or, he/she needn't use CONFIG_MMU switch macro in memcontrol.c". Welcome any other members' ideas, too. Thanks. -- Chen Gang Open, share, and attitude like air, water, and life which God blessed -- 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>