[PATCH 1/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

This patch enables CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA. As some NUMA nodes have memory ranges that span other nodes. Even though a pfn is valid and between a node's start and end pfns, it may not reside on that node. Signed-off-by: Hoan Tran --- mm/page_alloc.c | 2 +- 1 file

[PATCH 0/5] Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

This patch set enables CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA. The original patch [1] [1] arm64: Kconfig: Enable NODES_SPAN_OTHER_NODES config for NUMA https://www.spinics.net/lists/arm-kernel/msg737306.html Hoan Tran (5): mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

[PATCH 2/5] powerpc: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

This patch removes CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/powerpc/Kconfig | 9 - 1 file changed, 9 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 8c1c636..bdde8bc 100644 ---

[PATCH 3/5] x86: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

This patch removes CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/x86/Kconfig | 9 - 1 file changed, 9 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2bbbd4d..fa9318c 100644 --- a/arch/x86/Kconfig +++

[PATCH 4/5] sparc: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

This patch removes CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/sparc/Kconfig | 9 - 1 file changed, 9 deletions(-) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 26ab6f5..13449ea 100644 --- a/arch/sparc/Kconfig +++

[PATCH 5/5] s390: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

This patch removes CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/s390/Kconfig | 8 1 file changed, 8 deletions(-) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 109243f..788a8e9 100644 --- a/arch/s390/Kconfig +++

[PATCH v2 2/5] powerpc: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Remove CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/powerpc/Kconfig | 9 - 1 file changed, 9 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 8c1c636..bdde8bc 100644 --- a/arch/powerpc/Kconfig +++

[PATCH v2 1/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

In NUMA layout which nodes have memory ranges that span across other nodes, the mm driver can detect the memory node id incorrectly. For example, with layout below Node 0 address: Node 1 address: Note: - Memory from low to high - 0/1: Node id - x:

[PATCH v2 4/5] sparc: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Remove CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/sparc/Kconfig | 9 - 1 file changed, 9 deletions(-) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 26ab6f5..13449ea 100644 --- a/arch/sparc/Kconfig +++

[PATCH v2 3/5] x86: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Remove CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/x86/Kconfig | 9 - 1 file changed, 9 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2bbbd4d..fa9318c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@

[PATCH v2 5/5] s390: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Remove CONFIG_NODES_SPAN_OTHER_NODES as it's enabled by default with NUMA. Signed-off-by: Hoan Tran --- arch/s390/Kconfig | 8 1 file changed, 8 deletions(-) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 109243f..788a8e9 100644 --- a/arch/s390/Kconfig +++

[PATCH v2 0/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

In NUMA layout which nodes have memory ranges that span across other nodes, the mm driver can detect the memory node id incorrectly. For example, with layout below Node 0 address: Node 1 address: Note: - Memory from low to high - 0/1: Node id - x:

Re: [PATCH v2 0/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

Hi, On 7/12/19 2:02 PM, Michal Hocko wrote: > On Thu 11-07-19 23:25:44, Hoan Tran OS wrote: >> In NUMA layout which nodes have memory ranges that span across other nodes, >> the mm driver can detect the memory node id incorrectly. >> >> For example, with layout below &

Re: [PATCH v2 0/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

Hi, On 7/30/19 1:14 AM, Michal Hocko wrote: > [Sorry for a late reply] > > On Mon 15-07-19 17:55:07, Hoan Tran OS wrote: >> Hi, >> >> On 7/12/19 10:00 PM, Michal Hocko wrote: > [...] >>> Hmm, I thought this was selectable. But I am obviously wrong h

Re: [PATCH v2 3/5] x86: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Hi Thomas, On 7/15/19 11:43 AM, Thomas Gleixner wrote: > On Thu, 11 Jul 2019, Hoan Tran OS wrote: > >> Remove CONFIG_NODES_SPAN_OTHER_NODES as it's enabled >> by default with NUMA. > > As I told you before this does not mention that the option is now enab

Re: [PATCH v2 0/5] mm: Enable CONFIG_NODES_SPAN_OTHER_NODES by default for NUMA

Hi, On 7/12/19 10:00 PM, Michal Hocko wrote: > On Fri 12-07-19 15:37:30, Will Deacon wrote: >> Hi all, >> >> On Fri, Jul 12, 2019 at 02:12:23PM +0200, Michal Hocko wrote: >>> On Fri 12-07-19 10:56:47, Hoan Tran OS wrote: >>> [...] >>>> It woul

Re: [PATCH 3/5] x86: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Hi Thomas, On 7/10/19 12:58 PM, Thomas Gleixner wrote: > Hoan, > > On Wed, 10 Jul 2019, Hoan Tran OS wrote: >> On 6/25/19 3:45 PM, Thomas Gleixner wrote: >>> On Tue, 25 Jun 2019, Hoan Tran OS wrote: >>>> @@ -1567,15 +1567,6 @@ config X86_

Re: [PATCH 3/5] x86: Kconfig: Remove CONFIG_NODES_SPAN_OTHER_NODES

Hi Thomas, Thanks for you comments On 6/25/19 3:45 PM, Thomas Gleixner wrote: > Hoan, > > On Tue, 25 Jun 2019, Hoan Tran OS wrote: > > Please use 'x86/Kconfig: ' as prefix. > >> This patch removes CONFIG_NODES_SPAN_OTHER_NODES as it's >> enabled by default wit