The patch titled
Subject: powerpc/mm: drop platform defined pmd_mknotpresent()
has been added to the -mm tree. Its filename is
powerpc-mm-drop-platform-defined-pmd_mknotpresent.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/powerpc-mm-drop-platform-defined-pmd_mknotpresent.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/powerpc-mm-drop-platform-defined-pmd_mknotpresent.patch
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------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Subject: powerpc/mm: drop platform defined pmd_mknotpresent()
Patch series "mm/thp: Rename pmd_mknotpresent() as pmd_mknotvalid()".
This series renames pmd_mknotpresent() as pmd_mknotvalid(). Before that
it drops an existing pmd_mknotpresent() definition from powerpc platform
which was never required as it defines it's pmdp_invalidate() through
subscribing __HAVE_ARCH_PMDP_INVALIDATE. This does not create any
functional change.
This rename was suggested by Catalin during a previous discussion while we
were trying to change the THP helpers on arm64 platform for migration.
https://patchwork.kernel.org/patch/11019637/
This patch (of 2):
Platform needs to define pmd_mknotpresent() for generic pmdp_invalidate()
only when __HAVE_ARCH_PMDP_INVALIDATE is not subscribed. Otherwise
platform specific pmd_mknotpresent() is not required. Hence just drop it.
Link: http://lkml.kernel.org/r/1584680057-13753-1-git-send-email-anshuman.khandual@xxxxxxx
Link: http://lkml.kernel.org/r/1584680057-13753-2-git-send-email-anshuman.khandual@xxxxxxx
Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 4 ----
1 file changed, 4 deletions(-)
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h~powerpc-mm-drop-platform-defined-pmd_mknotpresent
+++ a/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1174,10 +1174,6 @@ static inline int pmd_large(pmd_t pmd)
return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
}
-static inline pmd_t pmd_mknotpresent(pmd_t pmd)
-{
- return __pmd(pmd_val(pmd) & ~_PAGE_PRESENT);
-}
/*
* For radix we should always find H_PAGE_HASHPTE zero. Hence
* the below will work for radix too
_
Patches currently in -mm which might be from anshuman.khandual@xxxxxxx are
mm-debug-add-tests-validating-architecture-page-table-helpers.patch
powerpc-mm-drop-platform-defined-pmd_mknotpresent.patch
mm-thp-rename-pmd_mknotpresent-as-pmd_mknotvalid.patch
