diff options
author | Mike Rapoport <rppt@linux.ibm.com> | 2020-06-08 21:32:33 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 09:39:13 -0700 |
commit | e31cf2f4ca422ac9b14ecc4a1295b8977a20f812 (patch) | |
tree | 52533470ee6bb0a9a7d6d56e8aa885f3b6d14945 /arch/openrisc/kernel | |
parent | 9cb8f069deeed708bf19486d5893e297dc467ae0 (diff) |
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/openrisc/kernel')
-rw-r--r-- | arch/openrisc/kernel/asm-offsets.c | 1 | ||||
-rw-r--r-- | arch/openrisc/kernel/process.c | 1 | ||||
-rw-r--r-- | arch/openrisc/kernel/ptrace.c | 1 | ||||
-rw-r--r-- | arch/openrisc/kernel/setup.c | 1 | ||||
-rw-r--r-- | arch/openrisc/kernel/traps.c | 1 |
5 files changed, 0 insertions, 5 deletions
diff --git a/arch/openrisc/kernel/asm-offsets.c b/arch/openrisc/kernel/asm-offsets.c index e435ae01c600..18c703d1d761 100644 --- a/arch/openrisc/kernel/asm-offsets.c +++ b/arch/openrisc/kernel/asm-offsets.c @@ -32,7 +32,6 @@ #include <linux/thread_info.h> #include <linux/kbuild.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/processor.h> int main(void) diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c index 6bcdca424e11..d7010e72450c 100644 --- a/arch/openrisc/kernel/process.c +++ b/arch/openrisc/kernel/process.c @@ -36,7 +36,6 @@ #include <linux/fs.h> #include <linux/uaccess.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/processor.h> #include <asm/spr_defs.h> diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c index 6a5a91c76338..c8f47a623754 100644 --- a/arch/openrisc/kernel/ptrace.c +++ b/arch/openrisc/kernel/ptrace.c @@ -27,7 +27,6 @@ #include <asm/thread_info.h> #include <asm/page.h> -#include <asm/pgtable.h> /* * Copy the thread state to a regset that can be interpreted by userspace. diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c index c0a774b51e45..8aa438e1f51f 100644 --- a/arch/openrisc/kernel/setup.c +++ b/arch/openrisc/kernel/setup.c @@ -35,7 +35,6 @@ #include <linux/device.h> #include <asm/sections.h> -#include <asm/pgtable.h> #include <asm/types.h> #include <asm/setup.h> #include <asm/io.h> diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c index 3022b0ad142c..206e5325e61b 100644 --- a/arch/openrisc/kernel/traps.c +++ b/arch/openrisc/kernel/traps.c @@ -31,7 +31,6 @@ #include <linux/uaccess.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/unwinder.h> #include <asm/sections.h> |