Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-02-02 Thread Zi Yan
On 2 Feb 2017, at 21:12, Hillf Danton wrote: > On February 01, 2017 3:54 AM Zi Yan wrote: >> >> I am also doing some tests on THP migration and discover that there are >> some corner cases not handled in this patchset. >> >> For example, in handle_mm_fault, without taking pmd_lock, the kernel may

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-02-02 Thread Zi Yan
On 2 Feb 2017, at 21:12, Hillf Danton wrote: > On February 01, 2017 3:54 AM Zi Yan wrote: >> >> I am also doing some tests on THP migration and discover that there are >> some corner cases not handled in this patchset. >> >> For example, in handle_mm_fault, without taking pmd_lock, the kernel may

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-02-02 Thread Hillf Danton
On February 01, 2017 3:54 AM Zi Yan wrote: > > I am also doing some tests on THP migration and discover that there are > some corner cases not handled in this patchset. > > For example, in handle_mm_fault, without taking pmd_lock, the kernel may > see pmd_none(*pmd) during THP migrations,

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-02-02 Thread Hillf Danton
On February 01, 2017 3:54 AM Zi Yan wrote: > > I am also doing some tests on THP migration and discover that there are > some corner cases not handled in this patchset. > > For example, in handle_mm_fault, without taking pmd_lock, the kernel may > see pmd_none(*pmd) during THP migrations,

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-01-31 Thread Zi Yan
I am also doing some tests on THP migration and discover that there are some corner cases not handled in this patchset. For example, in handle_mm_fault, without taking pmd_lock, the kernel may see pmd_none(*pmd) during THP migrations, which leads to handle_pte_fault or even deeper in the code

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-01-31 Thread Zi Yan
I am also doing some tests on THP migration and discover that there are some corner cases not handled in this patchset. For example, in handle_mm_fault, without taking pmd_lock, the kernel may see pmd_none(*pmd) during THP migrations, which leads to handle_pte_fault or even deeper in the code

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-01-30 Thread Anshuman Khandual
On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: > Hi everyone, > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > with feedbacks for ver.1. Hello Noaya, I have been working with Zi Yan on the parallel huge page migration series (https://lkml.org/lkml/2016/11/22/457) and

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2017-01-30 Thread Anshuman Khandual
On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: > Hi everyone, > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > with feedbacks for ver.1. Hello Noaya, I have been working with Zi Yan on the parallel huge page migration series (https://lkml.org/lkml/2016/11/22/457) and

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-10 Thread Anshuman Khandual
On 11/10/2016 07:31 PM, Zi Yan wrote: > On 9 Nov 2016, at 18:52, Naoya Horiguchi wrote: > >> Hi Anshuman, >> >> On Wed, Nov 09, 2016 at 04:03:04PM +0530, Anshuman Khandual wrote: >>> On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: Hi everyone, I've updated thp migration patches for

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-10 Thread Anshuman Khandual
On 11/10/2016 07:31 PM, Zi Yan wrote: > On 9 Nov 2016, at 18:52, Naoya Horiguchi wrote: > >> Hi Anshuman, >> >> On Wed, Nov 09, 2016 at 04:03:04PM +0530, Anshuman Khandual wrote: >>> On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: Hi everyone, I've updated thp migration patches for

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-10 Thread Zi Yan
On 9 Nov 2016, at 18:52, Naoya Horiguchi wrote: > Hi Anshuman, > > On Wed, Nov 09, 2016 at 04:03:04PM +0530, Anshuman Khandual wrote: >> On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: >>> Hi everyone, >>> >>> I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 >>> with

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-10 Thread Zi Yan
On 9 Nov 2016, at 18:52, Naoya Horiguchi wrote: > Hi Anshuman, > > On Wed, Nov 09, 2016 at 04:03:04PM +0530, Anshuman Khandual wrote: >> On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: >>> Hi everyone, >>> >>> I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 >>> with

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-09 Thread Naoya Horiguchi
Hi Anshuman, On Wed, Nov 09, 2016 at 04:03:04PM +0530, Anshuman Khandual wrote: > On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: > > Hi everyone, > > > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > > with feedbacks for ver.1. > > > > General description (no change

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-09 Thread Naoya Horiguchi
Hi Anshuman, On Wed, Nov 09, 2016 at 04:03:04PM +0530, Anshuman Khandual wrote: > On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: > > Hi everyone, > > > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > > with feedbacks for ver.1. > > > > General description (no change

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-09 Thread Balbir Singh
On 09/11/16 15:59, Naoya Horiguchi wrote: > On Wed, Nov 09, 2016 at 01:32:04PM +1100, Balbir Singh wrote: >> On 08/11/16 10:31, Naoya Horiguchi wrote: >>> Hi everyone, >>> >>> I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 >>> with feedbacks for ver.1. >>> >>> General

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-09 Thread Balbir Singh
On 09/11/16 15:59, Naoya Horiguchi wrote: > On Wed, Nov 09, 2016 at 01:32:04PM +1100, Balbir Singh wrote: >> On 08/11/16 10:31, Naoya Horiguchi wrote: >>> Hi everyone, >>> >>> I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 >>> with feedbacks for ver.1. >>> >>> General

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-09 Thread Anshuman Khandual
On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: > Hi everyone, > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > with feedbacks for ver.1. > > General description (no change since ver.1) > === > > This patchset enhances page

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-09 Thread Anshuman Khandual
On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: > Hi everyone, > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > with feedbacks for ver.1. > > General description (no change since ver.1) > === > > This patchset enhances page

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-08 Thread Naoya Horiguchi
On Wed, Nov 09, 2016 at 01:32:04PM +1100, Balbir Singh wrote: > On 08/11/16 10:31, Naoya Horiguchi wrote: > > Hi everyone, > > > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > > with feedbacks for ver.1. > > > > General description (no change since ver.1) > >

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-08 Thread Naoya Horiguchi
On Wed, Nov 09, 2016 at 01:32:04PM +1100, Balbir Singh wrote: > On 08/11/16 10:31, Naoya Horiguchi wrote: > > Hi everyone, > > > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > > with feedbacks for ver.1. > > > > General description (no change since ver.1) > >

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-08 Thread Balbir Singh
On 08/11/16 10:31, Naoya Horiguchi wrote: > Hi everyone, > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > with feedbacks for ver.1. > > General description (no change since ver.1) > === > > This patchset enhances page migration

Re: [PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-08 Thread Balbir Singh
On 08/11/16 10:31, Naoya Horiguchi wrote: > Hi everyone, > > I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 > with feedbacks for ver.1. > > General description (no change since ver.1) > === > > This patchset enhances page migration

[PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-07 Thread Naoya Horiguchi
Hi everyone, I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 with feedbacks for ver.1. General description (no change since ver.1) === This patchset enhances page migration functionality to handle thp migration for various page

[PATCH v2 00/12] mm: page migration enhancement for thp

2016-11-07 Thread Naoya Horiguchi
Hi everyone, I've updated thp migration patches for v4.9-rc2-mmotm-2016-10-27-18-27 with feedbacks for ver.1. General description (no change since ver.1) === This patchset enhances page migration functionality to handle thp migration for various page