From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Hugh Dickins <hughd@google.com>,
Dave Hansen <dave.hansen@intel.com>, Mel Gorman <mgorman@suse.de>,
Rik van Riel <riel@redhat.com>, Vlastimil Babka <vbabka@suse.cz>,
Christoph Lameter <cl@gentwo.org>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Steve Capper <steve.capper@linaro.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>,
Jerome Marchand <jmarchan@redhat.com>,
Sasha Levin <sasha.levin@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCHv12 25/37] mm, thp: remove infrastructure for handling splitting PMDs
Date: Fri, 9 Oct 2015 12:25:59 +0300 [thread overview]
Message-ID: <20151009092559.GA7346@node> (raw)
In-Reply-To: <56162EC9.8030803@synopsys.com>
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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next prev parent reply other threads:[~2015-10-09 9:26 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-06 15:23 [PATCHv12 00/37] THP refcounting redesign Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 01/37] mm, proc: adjust PSS calculation Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 02/37] rmap: add argument to charge compound page Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 03/37] memcg: adjust to support new THP refcounting Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 04/37] mm, thp: adjust conditions when we can reuse the page on WP fault Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 05/37] mm: adjust FOLL_SPLIT for new refcounting Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 06/37] mm: handle PTE-mapped tail pages in gerneric fast gup implementaiton Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 07/37] thp, mlock: do not allow huge pages in mlocked area Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 08/37] khugepaged: ignore pmd tables with THP mapped with ptes Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 09/37] thp: rename split_huge_page_pmd() to split_huge_pmd() Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 10/37] mm, vmstats: new THP splitting event Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 11/37] mm: temporally mark THP broken Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 12/37] thp: drop all split_huge_page()-related code Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 13/37] mm: drop tail page refcounting Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 14/37] futex, thp: remove special case for THP in get_futex_key Kirill A. Shutemov
2015-10-22 8:24 ` Artem Savkov
2015-10-22 9:49 ` Kirill A. Shutemov
2015-10-22 10:33 ` Artem Savkov
2015-10-06 15:23 ` [PATCHv12 15/37] ksm: prepare to new THP semantics Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 16/37] mm, thp: remove compound_lock Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 17/37] arm64, thp: remove infrastructure for handling splitting PMDs Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 18/37] arm, " Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 19/37] mips, " Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 20/37] powerpc, " Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 21/37] s390, " Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 22/37] sparc, " Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 23/37] tile, " Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 24/37] x86, " Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 25/37] mm, " Kirill A. Shutemov
2015-10-08 8:52 ` Vineet Gupta
2015-10-09 9:25 ` Kirill A. Shutemov [this message]
2015-10-06 15:23 ` [PATCHv12 26/37] mm: rework mapcount accounting to enable 4k mapping of THPs Kirill A. Shutemov
2015-10-27 6:18 ` Naoya Horiguchi
2015-10-27 9:30 ` Kirill A. Shutemov
2015-10-27 23:24 ` Naoya Horiguchi
2015-10-29 21:50 ` Kirill A. Shutemov
2015-10-30 8:33 ` Naoya Horiguchi
2015-10-29 8:19 ` Naoya Horiguchi
2015-10-29 21:20 ` Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 27/37] mm: differentiate page_mapped() from page_mapcount() for compound pages Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 28/37] mm, numa: skip PTE-mapped THP on numa fault Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 29/37] thp: implement split_huge_pmd() Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 30/37] thp: add option to setup migration entries during PMD split Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 31/37] thp, mm: split_huge_page(): caller need to lock page Kirill A. Shutemov
2015-10-06 15:23 ` [PATCHv12 32/37] thp: reintroduce split_huge_page() Kirill A. Shutemov
2015-11-18 16:24 ` Sasha Levin
2015-11-18 19:05 ` Kirill A. Shutemov
2015-11-27 4:26 ` Sasha Levin
2015-10-06 15:24 ` [PATCHv12 33/37] migrate_pages: try to split pages on qeueuing Kirill A. Shutemov
2015-10-06 15:24 ` [PATCHv12 34/37] thp: introduce deferred_split_huge_page() Kirill A. Shutemov
2016-01-21 1:22 ` Andrea Arcangeli
2016-01-21 12:09 ` [PATCH 0/3] Couple of fixes for deferred_split_huge_page() Kirill A. Shutemov
2016-01-21 12:09 ` [PATCH 1/3] thp: make split_queue per-node Kirill A. Shutemov
2016-01-21 12:09 ` [PATCH 2/3] thp: change deferred_split_count() to return number of THP in queue Kirill A. Shutemov
2016-01-22 14:31 ` Andrea Arcangeli
2016-01-22 15:20 ` Kirill A. Shutemov
2016-01-21 12:09 ` [PATCH 3/3] thp: limit number of object to scan on deferred_split_scan() Kirill A. Shutemov
2016-02-04 13:11 ` Kirill A. Shutemov
2016-01-21 22:52 ` [PATCH 0/3] Couple of fixes for deferred_split_huge_page() Andrea Arcangeli
2015-10-06 15:24 ` [PATCHv12 35/37] mm: re-enable THP Kirill A. Shutemov
2015-10-06 15:24 ` [PATCHv12 36/37] thp: update documentation Kirill A. Shutemov
2015-10-06 15:24 ` [PATCHv12 37/37] thp: allow mlocked THP again Kirill A. Shutemov
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