On 2015年10月14日 16:38, Michal Hocko wrote: > On Wed 14-10-15 16:17:31, Pan Xinhui wrote: > [...] >> I have a look at Mel's patchset. yes, it can help fix my kswapd issue. >> :) So I just need change my kmalloc's gfp_flag to GFP_ATOMIC &~ >> __GFP_KSWAPD_RECLAIM, then slub will not wakeup kswpad. > > As pointed out in my other email __GFP_ATOMIC would be more appropriate > because you shouldn't abuse memory reserves which are implicitly used > for GFP_ATOMIC requests. > oh, yes. maybe it's better to use (__GFP_HIGH | __GFP_ATOMIC) than (GFP_ATOMIC &~ __GFP_KSWAPD_RECLAIM).. just set the gfp flags which I need in kmalloc. thanks for the suggestion. thanks xinhui -- 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>