Re: [RFC] mm/madvise: Enable (soft|hard) offline of HugeTLB pages at PGD level

2017-04-19 Thread Anshuman Khandual
On 04/19/2017 12:12 PM, Anshuman Khandual wrote: > On 04/19/2017 11:50 AM, Aneesh Kumar K.V wrote: >> Anshuman Khandual writes: >> >>> Though migrating gigantic HugeTLB pages does not sound much like real >>> world use case, they can be affected by memory errors. Hence migration >>> at the PGD lev

Re: [RFC] mm/madvise: Enable (soft|hard) offline of HugeTLB pages at PGD level

2017-04-18 Thread Anshuman Khandual
On 04/19/2017 11:50 AM, Aneesh Kumar K.V wrote: > Anshuman Khandual writes: > >> Though migrating gigantic HugeTLB pages does not sound much like real >> world use case, they can be affected by memory errors. Hence migration >> at the PGD level HugeTLB pages should be supported just to enable sof

Re: [RFC] mm/madvise: Enable (soft|hard) offline of HugeTLB pages at PGD level

2017-04-18 Thread Aneesh Kumar K.V
Anshuman Khandual writes: > Though migrating gigantic HugeTLB pages does not sound much like real > world use case, they can be affected by memory errors. Hence migration > at the PGD level HugeTLB pages should be supported just to enable soft > and hard offline use cases. In that case do we wan

[RFC] mm/madvise: Enable (soft|hard) offline of HugeTLB pages at PGD level

2017-04-18 Thread Anshuman Khandual
Though migrating gigantic HugeTLB pages does not sound much like real world use case, they can be affected by memory errors. Hence migration at the PGD level HugeTLB pages should be supported just to enable soft and hard offline use cases. While allocating the new gigantic HugeTLB page, it should