Re: [PATCH v11 5/9] mm: zero reserved and unavailable struct pages

2017-10-10 Thread Pavel Tatashin
> Btw. I would add your example from > http://lkml.kernel.org/r/bcf24369-ac37-cedd-a264-3396fb5cf...@oracle.com > to do changelog > Will add, thank you for your review. Pavel

Re: [PATCH v11 5/9] mm: zero reserved and unavailable struct pages

2017-10-10 Thread Michal Hocko
On Tue 10-10-17 15:44:41, Michal Hocko wrote: > On Mon 09-10-17 18:19:27, Pavel Tatashin wrote: > > Some memory is reserved but unavailable: not present in memblock.memory > > (because not backed by physical pages), but present in memblock.reserved. > > Such memory has backing struct pages, but the

Re: [PATCH v11 5/9] mm: zero reserved and unavailable struct pages

2017-10-10 Thread Michal Hocko
On Mon 09-10-17 18:19:27, Pavel Tatashin wrote: > Some memory is reserved but unavailable: not present in memblock.memory > (because not backed by physical pages), but present in memblock.reserved. > Such memory has backing struct pages, but they are not initialized by going > through __init_single

[PATCH v11 5/9] mm: zero reserved and unavailable struct pages

2017-10-09 Thread Pavel Tatashin
Some memory is reserved but unavailable: not present in memblock.memory (because not backed by physical pages), but present in memblock.reserved. Such memory has backing struct pages, but they are not initialized by going through __init_single_page(). In some cases these struct pages are accessed