Hi... On 20/06/2011, Jui-Hao Chiang <windtracekimo@xxxxxxxxx> wrote: > Hi, > > I am currently analyzing the memory pages footprint in 2.6.18.8 kernel (1GB > ram, > 32-bit, Flat model, no NUMA), and got a question. Does page_count(page)==0 > really means the page is free because the source code says so? looking at how page_count implemented, it checks whether the related page is gonna be reclaimed or a compound page (not sure what it is). If so, returns the first page of that "page". by comparing the definition of free page as "really free, not being used for any purpose" versus the above perception, I guess it's not surprising to see the difference -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
