Re: incoming

[Andrew Morton <akpm@linux-foundation.org>]

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On Wed, 5 May 2021 10:10:33 -0700 Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Tue, May 4, 2021 at 8:16 PM Andrew Morton <akpm@linux-foundation.org> wrote:
> >
> > Let me resend right now with the same in-reply-to.  Hopefully they will
> > land in the correct place.
> 
> Well, you re-sent it twice, and I have three copies in my own mailbox,
> bot they still don't show up on the mm-commits mailing list.
> 
> So the list hates them for some odd reason.
> 
> I've picked them up locally, but adding Konstantin to the participants
> to see if he can see what's up.
> 
> Konstantin: patches 103/106/107 are missing on lore out of Andrew's
> series of 143. Odd.

It's weird.  They don't turn up on linux-mm either, and that's running
at kvack.org, also majordomo.  They don't get through when sent with
either heirloom-mailx or with sylpheed.

Also, it seems that when Anshuman originally sent the patch, linux-mm
and linux-kernel didn't send it back out.  So perhaps a spam filter
triggered?

I'm seeing

https://lore.kernel.org/linux-arm-kernel/1615278790-18053-3-git-send-email-anshuman.khandual@arm.com/

which is via linux-arm-kernel@lists.infradead.org but the linux-kernel
server massacred that patch series.  Searching
https://lkml.org/lkml/2021/3/9 for "anshuman" only shows 3 of the 7
email series.

One of the emails (as sent my me) is attached, if that helps.



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Date: Tue, 04 May 2021 20:16:26 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, anshuman.khandual@arm.com, aou@eecs.berkeley.edu, arnd@arndb.de, benh@kernel.crashing.org, borntraeger@de.ibm.com, bp@alien8.de, catalin.marinas@arm.com, dalias@libc.org, deller@gmx.de, gor@linux.ibm.com, hca@linux.ibm.com, hpa@zytor.com, James.Bottomley@HansenPartnership.com, linux-mm@kvack.org, linux@armlinux.org.uk, mingo@redhat.com, mm-commits@vger.kernel.org, mpe@ellerman.id.au, palmerdabbelt@google.com, paul.walmsley@sifive.com, paulus@samba.org, tglx@linutronix.de, torvalds@linux-foundation.org, tsbogend@alpha.franken.de, vgupta@synopsys.com, viro@zeniv.linux.org.uk, will@kernel.org, ysato@users.osdn.me
Subject: [patch 103/143] mm: generalize SYS_SUPPORTS_HUGETLBFS (rename as ARCH_SUPPORTS_HUGETLBFS)
Message-ID: <20210505031626.c8o4WL7KE%akpm@linux-foundation.org>
In-Reply-To: <20210504183219.a3cc46aee4013d77402276c5@linux-foundation.org>
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From: Anshuman Khandual <anshuman.khandual@arm.com>
Subject: mm: generalize SYS_SUPPORTS_HUGETLBFS (rename as ARCH_SUPPORTS_HUGETLBFS)

SYS_SUPPORTS_HUGETLBFS config has duplicate definitions on platforms that
subscribe it.  Instead, just make it a generic option which can be
selected on applicable platforms.  Also rename it as
ARCH_SUPPORTS_HUGETLBFS instead.  This reduces code duplication and makes
it cleaner.

Link: https://lkml.kernel.org/r/1617259448-22529-3-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>	[arm64]
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>	[riscv]
Acked-by: Michael Ellerman <mpe@ellerman.id.au>		[powerpc]
Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm/Kconfig                       |    5 +----
 arch/arm64/Kconfig                     |    4 +---
 arch/mips/Kconfig                      |    6 +-----
 arch/parisc/Kconfig                    |    5 +----
 arch/powerpc/Kconfig                   |    3 ---
 arch/powerpc/platforms/Kconfig.cputype |    6 +++---
 arch/riscv/Kconfig                     |    5 +----
 arch/sh/Kconfig                        |    5 +----
 fs/Kconfig                             |    5 ++++-
 9 files changed, 13 insertions(+), 31 deletions(-)

--- a/arch/arm64/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/arm64/Kconfig
@@ -73,6 +73,7 @@ config ARM64
 	select ARCH_USE_QUEUED_SPINLOCKS
 	select ARCH_USE_SYM_ANNOTATIONS
 	select ARCH_SUPPORTS_DEBUG_PAGEALLOC
+	select ARCH_SUPPORTS_HUGETLBFS
 	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK
 	select ARCH_SUPPORTS_LTO_CLANG if CPU_LITTLE_ENDIAN
@@ -1072,9 +1073,6 @@ config HW_PERF_EVENTS
 	def_bool y
 	depends on ARM_PMU
 
-config SYS_SUPPORTS_HUGETLBFS
-	def_bool y
-
 config ARCH_HAS_FILTER_PGPROT
 	def_bool y
 
--- a/arch/arm/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/arm/Kconfig
@@ -31,6 +31,7 @@ config ARM
 	select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
 	select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
 	select ARCH_SUPPORTS_ATOMIC_RMW
+	select ARCH_SUPPORTS_HUGETLBFS if ARM_LPAE
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_USE_MEMTEST
@@ -1511,10 +1512,6 @@ config HW_PERF_EVENTS
 	def_bool y
 	depends on ARM_PMU
 
-config SYS_SUPPORTS_HUGETLBFS
-       def_bool y
-       depends on ARM_LPAE
-
 config HAVE_ARCH_TRANSPARENT_HUGEPAGE
        def_bool y
        depends on ARM_LPAE
--- a/arch/mips/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/mips/Kconfig
@@ -19,6 +19,7 @@ config MIPS
 	select ARCH_USE_MEMTEST
 	select ARCH_USE_QUEUED_RWLOCKS
 	select ARCH_USE_QUEUED_SPINLOCKS
+	select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_WANT_LD_ORPHAN_WARN
@@ -1287,11 +1288,6 @@ config SYS_SUPPORTS_BIG_ENDIAN
 config SYS_SUPPORTS_LITTLE_ENDIAN
 	bool
 
-config SYS_SUPPORTS_HUGETLBFS
-	bool
-	depends on CPU_SUPPORTS_HUGEPAGES
-	default y
-
 config MIPS_HUGE_TLB_SUPPORT
 	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
 
--- a/arch/parisc/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/parisc/Kconfig
@@ -12,6 +12,7 @@ config PARISC
 	select ARCH_HAS_STRICT_KERNEL_RWX
 	select ARCH_HAS_UBSAN_SANITIZE_ALL
 	select ARCH_NO_SG_CHAIN
+	select ARCH_SUPPORTS_HUGETLBFS if PA20
 	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select DMA_OPS
 	select RTC_CLASS
@@ -138,10 +139,6 @@ config PGTABLE_LEVELS
 	default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
 	default 2
 
-config SYS_SUPPORTS_HUGETLBFS
-	def_bool y if PA20
-
-
 menu "Processor type and features"
 
 choice
--- a/arch/powerpc/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/powerpc/Kconfig
@@ -697,9 +697,6 @@ config ARCH_SPARSEMEM_DEFAULT
 	def_bool y
 	depends on PPC_BOOK3S_64
 
-config SYS_SUPPORTS_HUGETLBFS
-	bool
-
 config ILLEGAL_POINTER_VALUE
 	hex
 	# This is roughly half way between the top of user space and the bottom
--- a/arch/powerpc/platforms/Kconfig.cputype~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/powerpc/platforms/Kconfig.cputype
@@ -40,8 +40,8 @@ config PPC_85xx
 
 config PPC_8xx
 	bool "Freescale 8xx"
+	select ARCH_SUPPORTS_HUGETLBFS
 	select FSL_SOC
-	select SYS_SUPPORTS_HUGETLBFS
 	select PPC_HAVE_KUEP
 	select PPC_HAVE_KUAP
 	select HAVE_ARCH_VMAP_STACK
@@ -95,9 +95,9 @@ config PPC_BOOK3S_64
 	bool "Server processors"
 	select PPC_FPU
 	select PPC_HAVE_PMU_SUPPORT
-	select SYS_SUPPORTS_HUGETLBFS
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
+	select ARCH_SUPPORTS_HUGETLBFS
 	select ARCH_SUPPORTS_NUMA_BALANCING
 	select IRQ_WORK
 	select PPC_MM_SLICES
@@ -278,9 +278,9 @@ config FSL_BOOKE
 # this is for common code between PPC32 & PPC64 FSL BOOKE
 config PPC_FSL_BOOK3E
 	bool
+	select ARCH_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
 	select FSL_EMB_PERFMON
 	select PPC_SMP_MUXED_IPI
-	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
 	select PPC_DOORBELL
 	default y if FSL_BOOKE
 
--- a/arch/riscv/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/riscv/Kconfig
@@ -30,6 +30,7 @@ config RISCV
 	select ARCH_HAS_STRICT_KERNEL_RWX if MMU
 	select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
 	select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
+	select ARCH_SUPPORTS_HUGETLBFS if MMU
 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
 	select ARCH_WANT_FRAME_POINTERS
 	select ARCH_WANT_HUGE_PMD_SHARE if 64BIT
@@ -165,10 +166,6 @@ config ARCH_WANT_GENERAL_HUGETLB
 config ARCH_SUPPORTS_UPROBES
 	def_bool y
 
-config SYS_SUPPORTS_HUGETLBFS
-	depends on MMU
-	def_bool y
-
 config STACKTRACE_SUPPORT
 	def_bool y
 
--- a/arch/sh/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/arch/sh/Kconfig
@@ -101,9 +101,6 @@ config SYS_SUPPORTS_APM_EMULATION
 	bool
 	select ARCH_SUSPEND_POSSIBLE
 
-config SYS_SUPPORTS_HUGETLBFS
-	bool
-
 config SYS_SUPPORTS_SMP
 	bool
 
@@ -175,12 +172,12 @@ config CPU_SH3
 
 config CPU_SH4
 	bool
+	select ARCH_SUPPORTS_HUGETLBFS if MMU
 	select CPU_HAS_INTEVT
 	select CPU_HAS_SR_RB
 	select CPU_HAS_FPU if !CPU_SH4AL_DSP
 	select SH_INTC
 	select SYS_SUPPORTS_SH_TMU
-	select SYS_SUPPORTS_HUGETLBFS if MMU
 
 config CPU_SH4A
 	bool
--- a/fs/Kconfig~mm-generalize-sys_supports_hugetlbfs-rename-as-arch_supports_hugetlbfs
+++ a/fs/Kconfig
@@ -223,10 +223,13 @@ config TMPFS_INODE64
 
 	  If unsure, say N.
 
+config ARCH_SUPPORTS_HUGETLBFS
+	def_bool n
+
 config HUGETLBFS
 	bool "HugeTLB file system support"
 	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
-		   SYS_SUPPORTS_HUGETLBFS || BROKEN
+		   ARCH_SUPPORTS_HUGETLBFS || BROKEN
 	help
 	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
 	  ramfs. For architectures that support it, say Y here and read
_