Re: [PATCH v2 00/12] THP support for ARC

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On Fri, Oct 09, 2015 at 03:03:26PM +0530, Vineet Gupta wrote:
> On Thursday 01 October 2015 11:32 AM, Vineet Gupta wrote:
> > On Tuesday 22 September 2015 04:04 PM, Vineet Gupta wrote:
> >> > Hi,
> >> > 
> >> > This series brings THP support to ARC. It also introduces an optional new
> >> > thp hook for arches to possibly optimize the TLB flush in thp regime.
> >> > 
> >> > Please review !
> >> > 
> >> > Changes Since v1 [*]
> >> >    - Rebased against v4.3-rc2
> >> >    - Switched ARC pgtable_t to pte_t * 		(Kiril)
> >> >    - Removed stub implementations for		(Andrew)
> >> > 	pmdp_set_access_flags, pmdp_test_and_clear_young, pmdp_set_wrprotect,
> >> > 	pmdp_collapse_flush, pmd_same
> >> > 
> >> > [*] http://lkml.kernel.org/r/1440666194-21478-1-git-send-email-vgupta@xxxxxxxxxxxx
> >> > 
> >> > Vineet Gupta (12):
> >> >   ARC: mm: switch pgtable_to to pte_t *
> >> >   ARC: mm: pte flags comsetic cleanups, comments
> >> >   ARC: mm: Introduce PTE_SPECIAL
> >> >   Documentation/features/vm: pte_special now supported by ARC
> >> >   ARCv2: mm: THP support
> >> >   ARCv2: mm: THP: boot validation/reporting
> >> >   Documentation/features/vm: THP now supported by ARC
> >> >   mm: move some code around
> >> >   mm,thp: reduce ifdef'ery for THP in generic code
> >> >   mm,thp: introduce flush_pmd_tlb_range
> >> >   ARCv2: mm: THP: Implement flush_pmd_tlb_range() optimization
> >> >   ARCv2: Add a DT which enables THP
> >> > 
> >> >  Documentation/features/vm/THP/arch-support.txt     |  2 +-
> >> >  .../features/vm/pte_special/arch-support.txt       |  2 +-
> >> >  arch/arc/Kconfig                                   |  4 +
> >> >  arch/arc/boot/dts/hs_thp.dts                       | 59 +++++++++++++
> >> >  arch/arc/include/asm/hugepage.h                    | 82 ++++++++++++++++++
> >> >  arch/arc/include/asm/page.h                        |  5 +-
> >> >  arch/arc/include/asm/pgalloc.h                     |  6 +-
> >> >  arch/arc/include/asm/pgtable.h                     | 60 +++++++------
> >> >  arch/arc/mm/tlb.c                                  | 76 ++++++++++++++++-
> >> >  arch/arc/mm/tlbex.S                                | 21 +++--
> >> >  include/asm-generic/pgtable.h                      | 49 ++++-------
> >> >  mm/huge_memory.c                                   |  2 +-
> >> >  mm/pgtable-generic.c                               | 99 ++++++++++------------
> >> >  13 files changed, 345 insertions(+), 122 deletions(-)
> >> >  create mode 100644 arch/arc/boot/dts/hs_thp.dts
> >> >  create mode 100644 arch/arc/include/asm/hugepage.h
> > Andrew, Kirill, could you please review/ack the generic mm bits atleast so I can
> > proceed with moving the stuff into linux-next !
> 
> Ping 2 !

Sorry.

> Can I please get some acks on the generic mm bits. Some of the changes
> will likely collide Kirill's THP rework !

Could you check if it acctually collides?

> Given people rebase off of mmtomm would it be better if generic patches went thru
> Andrew and probably included sooner for 4.4 target ?
> 
> -Vineet
> 
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-- 
 Kirill A. Shutemov

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