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SubjectRe: [PATCHv12 25/37] mm, thp: remove infrastructure for handling splitting PMDs
On Thu, Oct 08, 2015 at 02:22:25PM +0530, Vineet Gupta wrote:
> On Tuesday 06 October 2015 08:53 PM, Kirill A. Shutemov wrote:
> > With new refcounting we don't need to mark PMDs splitting. Let's drop code
> > to handle this.
> >
> ....
> >
> > diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
> > index 29c57b2cb344..010a7e3f6ad1 100644
> > --- a/include/asm-generic/pgtable.h
> > +++ b/include/asm-generic/pgtable.h
> > @@ -184,11 +184,6 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
> > #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
> > #endif
> >
> > -#ifndef __HAVE_ARCH_PMDP_SPLITTING_FLUSH
> > -extern void pmdp_splitting_flush(struct vm_area_struct *vma,
> > - unsigned long address, pmd_t *pmdp);
> > -#endif
>
>
> Hi Kirill,
>
> While at it - you would also want to nuke
>
> Documentation/features/vm/pmdp_splitting_flush/

Sure.

The patch below can be folded into this one.

diff --git a/Documentation/features/vm/pmdp_splitting_flush/arch-support.txt b/Documentation/features/vm/pmdp_splitting_flush/arch-support.txt
deleted file mode 100644
index 26f74b457e0b..000000000000
--- a/Documentation/features/vm/pmdp_splitting_flush/arch-support.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-#
-# Feature name: pmdp_splitting_flush
-# Kconfig: __HAVE_ARCH_PMDP_SPLITTING_FLUSH
-# description: arch supports the pmdp_splitting_flush() VM API
-#
- -----------------------
- | arch |status|
- -----------------------
- | alpha: | TODO |
- | arc: | TODO |
- | arm: | ok |
- | arm64: | ok |
- | avr32: | TODO |
- | blackfin: | TODO |
- | c6x: | TODO |
- | cris: | TODO |
- | frv: | TODO |
- | h8300: | TODO |
- | hexagon: | TODO |
- | ia64: | TODO |
- | m32r: | TODO |
- | m68k: | TODO |
- | metag: | TODO |
- | microblaze: | TODO |
- | mips: | ok |
- | mn10300: | TODO |
- | nios2: | TODO |
- | openrisc: | TODO |
- | parisc: | TODO |
- | powerpc: | ok |
- | s390: | ok |
- | score: | TODO |
- | sh: | TODO |
- | sparc: | TODO |
- | tile: | TODO |
- | um: | TODO |
- | unicore32: | TODO |
- | x86: | ok |
- | xtensa: | TODO |
- -----------------------
--
Kirill A. Shutemov

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