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 <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Cain <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Greentime Hu <[email protected]>
Cc: Greg Ungerer <[email protected]>
Cc: Guan Xuetao <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Ley Foon Tan <[email protected]>
Cc: Mark Salter <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Nick Hu <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Russell King <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Vincent Chen <[email protected]>
Cc: Vineet Gupta <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

10 files changed, 0 insertions, 10 deletions

diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index 82703e03f35d..2204704840ea 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -6,7 +6,6 @@
 #include <linux/sched.h>
 #include <asm/processor.h>
 #include <asm/pgalloc.h>
-#include <asm/pgtable.h>
 
 /*
  * Flush all TLB entries on the local CPU.
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 3a854cb5a4c6..93c6b8932fbd 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -16,7 +16,6 @@
 #include <linux/debug_locks.h>
 #include <asm/cio.h>
 #include <asm/setup.h>
-#include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/smp.h>
 #include <asm/ipl.h>
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 994a8b86edae..ce60a459a143 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -25,7 +25,6 @@
 #include <linux/compat.h>
 #include <trace/syscall.h>
 #include <asm/page.h>
-#include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index bcc9bdb39ba2..0e98a5d1bbfb 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -21,7 +21,6 @@
 #include <linux/memblock.h>
 #include <linux/compat.h>
 #include <asm/asm-offsets.h>
-#include <asm/pgtable.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/mmu_context.h>
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 5d67b81c704a..c2ac9b8ae612 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -6,7 +6,6 @@
 #include <linux/kasan.h>
 #include <asm/kasan.h>
 #include <asm/sections.h>
-#include <asm/pgtable.h>
 
 static unsigned long max_addr;
 
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index dedc28be27ab..2082323e2e59 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -33,7 +33,6 @@
 #include <linux/hugetlb.h>
 #include <asm/asm-offsets.h>
 #include <asm/diag.h>
-#include <asm/pgtable.h>
 #include <asm/gmap.h>
 #include <asm/irq.h>
 #include <asm/mmu_context.h>
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index b11bcf4da531..6dc7c3b60ef6 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -33,7 +33,6 @@
 #include <linux/dma-direct.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
-#include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/dma.h>
 #include <asm/lowcore.h>
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index e22c06d5f206..732c12145d04 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -7,7 +7,6 @@
 #include <linux/mm.h>
 #include <asm/cacheflush.h>
 #include <asm/facility.h>
-#include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/page.h>
 #include <asm/set_memory.h>
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 9ebd01219812..2e0cc19f4cd7 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -19,7 +19,6 @@
 #include <linux/ksm.h>
 #include <linux/mman.h>
 
-#include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index f810930aff42..8b6282cf7d13 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -13,7 +13,6 @@
 #include <linux/slab.h>
 #include <asm/cacheflush.h>
 #include <asm/pgalloc.h>
-#include <asm/pgtable.h>
 #include <asm/setup.h>
 #include <asm/tlbflush.h>
 #include <asm/sections.h>