Re: [PATCHv2 6/7] x86/mm: remove bottom-up allocation style for x86_64

2019-01-14 Thread Pingfan Liu
On Tue, Jan 15, 2019 at 7:27 AM Dave Hansen wrote: > > On 1/10/19 9:12 PM, Pingfan Liu wrote: > > Although kaslr-kernel can avoid to stain the movable node. [1] > > Can you explain what staining is, or perhaps try to use some more > standard nomenclature? There are exactly 0 instances of the

Re: [PATCHv2 6/7] x86/mm: remove bottom-up allocation style for x86_64

2019-01-14 Thread Dave Hansen
On 1/10/19 9:12 PM, Pingfan Liu wrote: > Although kaslr-kernel can avoid to stain the movable node. [1] Can you explain what staining is, or perhaps try to use some more standard nomenclature? There are exactly 0 instances of the word "stain" in arch/x86/ or mm/. > But the > pgtable can still

[PATCHv2 6/7] x86/mm: remove bottom-up allocation style for x86_64

2019-01-10 Thread Pingfan Liu
Although kaslr-kernel can avoid to stain the movable node. [1] But the pgtable can still stain the movable node. That is a probability problem, although low, but exist. This patch tries to make it certainty by allocating pgtable on unmovable node, instead of following kernel end. There are two