Messages in this thread | | | Date | Wed, 14 Oct 2015 16:40:44 +0800 | From | Pan Xinhui <> | Subject | Re: [PATCH] gfp: GFP_RECLAIM_MASK should include __GFP_NO_KSWAPD |
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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
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