diff options
author | Mike Rapoport <rppt@linux.ibm.com> | 2020-06-08 21:32:33 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 09:39:13 -0700 |
commit | e31cf2f4ca422ac9b14ecc4a1295b8977a20f812 (patch) | |
tree | 52533470ee6bb0a9a7d6d56e8aa885f3b6d14945 /arch/sh | |
parent | 9cb8f069deeed708bf19486d5893e297dc467ae0 (diff) | |
download | linux-e31cf2f4ca422ac9b14ecc4a1295b8977a20f812.tar.bz2 |
mm: don't include asm/pgtable.h if linux/mm.h is already included
Patch series "mm: consolidate definitions of page table accessors", v2.
The low level page table accessors (pXY_index(), pXY_offset()) are
duplicated across all architectures and sometimes more than once. For
instance, we have 31 definition of pgd_offset() for 25 supported
architectures.
Most of these definitions are actually identical and typically it boils
down to, e.g.
static inline unsigned long pmd_index(unsigned long address)
{
return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
}
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
{
return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
}
These definitions can be shared among 90% of the arches provided
XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined.
For architectures that really need a custom version there is always
possibility to override the generic version with the usual ifdefs magic.
These patches introduce include/linux/pgtable.h that replaces
include/asm-generic/pgtable.h and add the definitions of the page table
accessors to the new header.
This patch (of 12):
The linux/mm.h header includes <asm/pgtable.h> to allow inlining of the
functions involving page table manipulations, e.g. pte_alloc() and
pmd_alloc(). So, there is no point to explicitly include <asm/pgtable.h>
in the files that include <linux/mm.h>.
The include statements in such cases are remove with a simple loop:
for f in $(git grep -l "include <linux/mm.h>") ; do
sed -i -e '/include <asm\/pgtable.h>/ d' $f
done
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org
Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh')
-rw-r--r-- | arch/sh/kernel/machine_kexec.c | 1 | ||||
-rw-r--r-- | arch/sh/kernel/ptrace_32.c | 1 | ||||
-rw-r--r-- | arch/sh/kernel/signal_32.c | 1 | ||||
-rw-r--r-- | arch/sh/mm/cache-sh3.c | 1 | ||||
-rw-r--r-- | arch/sh/mm/cache-sh4.c | 1 | ||||
-rw-r--r-- | arch/sh/mm/cache-sh7705.c | 1 | ||||
-rw-r--r-- | arch/sh/mm/nommu.c | 1 |
7 files changed, 0 insertions, 7 deletions
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 63d63a36f6f2..4a98980b8a07 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -14,7 +14,6 @@ #include <linux/ftrace.h> #include <linux/suspend.h> #include <linux/memblock.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/mmu_context.h> #include <asm/io.h> diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index d5052c30a0e9..64bfb714943e 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -25,7 +25,6 @@ #include <linux/regset.h> #include <linux/hw_breakpoint.h> #include <linux/uaccess.h> -#include <asm/pgtable.h> #include <asm/processor.h> #include <asm/mmu_context.h> #include <asm/syscalls.h> diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index 24473fa6c3b6..a0fbb8427b39 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -28,7 +28,6 @@ #include <linux/tracehook.h> #include <asm/ucontext.h> #include <linux/uaccess.h> -#include <asm/pgtable.h> #include <asm/cacheflush.h> #include <asm/syscalls.h> #include <asm/fpu.h> diff --git a/arch/sh/mm/cache-sh3.c b/arch/sh/mm/cache-sh3.c index 8172a171d727..26f3bd43e850 100644 --- a/arch/sh/mm/cache-sh3.c +++ b/arch/sh/mm/cache-sh3.c @@ -12,7 +12,6 @@ #include <linux/threads.h> #include <asm/addrspace.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/processor.h> #include <asm/cache.h> #include <asm/io.h> diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index 45943bcb7042..ed599dadd698 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -16,7 +16,6 @@ #include <linux/mutex.h> #include <linux/fs.h> #include <linux/highmem.h> -#include <asm/pgtable.h> #include <asm/mmu_context.h> #include <asm/cache_insns.h> #include <asm/cacheflush.h> diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c index ed25eba80667..48978293226c 100644 --- a/arch/sh/mm/cache-sh7705.c +++ b/arch/sh/mm/cache-sh7705.c @@ -16,7 +16,6 @@ #include <linux/threads.h> #include <asm/addrspace.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/processor.h> #include <asm/cache.h> #include <asm/io.h> diff --git a/arch/sh/mm/nommu.c b/arch/sh/mm/nommu.c index dca946f426c6..8b4504413c5f 100644 --- a/arch/sh/mm/nommu.c +++ b/arch/sh/mm/nommu.c @@ -10,7 +10,6 @@ #include <linux/init.h> #include <linux/string.h> #include <linux/mm.h> -#include <asm/pgtable.h> #include <asm/tlbflush.h> #include <asm/page.h> #include <linux/uaccess.h> |