mm: introduce include/linux/pgtable.h

The include/linux/pgtable.h is going to be the home of generic page table
manipulation functions.

Start with moving asm-generic/pgtable.h to include/linux/pgtable.h and
make the latter include asm/pgtable.h.

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: 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/20200514170327.31389-3-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 files changed, 11 insertions, 13 deletions

diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c
index 357adad991d2..b765f2d4172e 100644
--- a/arch/s390/boot/ipl_parm.c
+++ b/arch/s390/boot/ipl_parm.c
@@ -7,7 +7,7 @@
 #include <asm/sections.h>
 #include <asm/boot_data.h>
 #include <asm/facility.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/uv.h>
 #include "boot.h"
 
diff --git a/arch/s390/boot/kaslr.c b/arch/s390/boot/kaslr.c
index 5591243d673e..95376a19c69a 100644
--- a/arch/s390/boot/kaslr.c
+++ b/arch/s390/boot/kaslr.c
@@ -3,7 +3,7 @@
  * Copyright IBM Corp. 2019
  */
 #include <asm/mem_detect.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/cpacf.h>
 #include <asm/timex.h>
 #include <asm/sclp.h>
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index 9ddf4a43a590..d806d3d28134 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -10,7 +10,7 @@
 #define _ASM_S390_HUGETLB_H
 
 #include <asm/page.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 #define hugetlb_free_pgd_range			free_pgd_range
 #define hugepages_supported()			(MACHINE_HAS_EDAT1)
diff --git a/arch/s390/include/asm/kasan.h b/arch/s390/include/asm/kasan.h
index 70930fe5c496..d8f8e8d5abe0 100644
--- a/arch/s390/include/asm/kasan.h
+++ b/arch/s390/include/asm/kasan.h
@@ -2,7 +2,7 @@
 #ifndef __ASM_KASAN_H
 #define __ASM_KASAN_H
 
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 #ifdef CONFIG_KASAN
 
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index e2528e057980..22757203828d 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1683,6 +1683,4 @@ extern void s390_reset_cmma(struct mm_struct *mm);
 #define HAVE_ARCH_UNMAPPED_AREA
 #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
 
-#include <asm-generic/pgtable.h>
-
 #endif /* _S390_PAGE_H */
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index e80f0e6f5972..f3daf5f8de3f 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -13,7 +13,7 @@
 #include <linux/purgatory.h>
 #include <asm/idle.h>
 #include <asm/vdso.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/gmap.h>
 #include <asm/nmi.h>
 #include <asm/stacktrace.h>
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 47a67a958107..0fefb440fe74 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -10,7 +10,7 @@
 #include <linux/mm_types.h>
 #include <linux/err.h>
 
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/gmap.h>
 #include "kvm-s390.h"
 #include "gaccess.h"
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 22058ea9b8eb..023f2b07f97f 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -35,7 +35,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/lowcore.h>
 #include <asm/stp.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/gmap.h>
 #include <asm/nmi.h>
 #include <asm/switch_to.h>
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 893893642415..8ec0ab070a49 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -20,7 +20,7 @@
 #include <asm/debug.h>
 #include <asm/ebcdic.h>
 #include <asm/sysinfo.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/page-states.h>
 #include <asm/pgalloc.h>
 #include <asm/gmap.h>
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index fd0dae9d10f4..982c65d22175 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -22,7 +22,7 @@
 #include <linux/refcount.h>
 #include <asm/diag.h>
 #include <asm/page.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/ebcdic.h>
 #include <asm/errno.h>
 #include <asm/extmem.h>
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 4b6903fbba4a..11b8fe47134d 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -18,7 +18,7 @@
 #include <linux/ksm.h>
 #include <linux/mman.h>
 
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/gmap.h>
 #include <asm/tlb.h>
diff --git a/arch/s390/mm/kasan_init.c b/arch/s390/mm/kasan_init.c
index 06345616a646..6a5630731377 100644
--- a/arch/s390/mm/kasan_init.c
+++ b/arch/s390/mm/kasan_init.c
@@ -3,7 +3,7 @@
 #include <linux/sched/task.h>
 #include <linux/memblock.h>
 #include <asm/pgalloc.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/kasan.h>
 #include <asm/mem_detect.h>
 #include <asm/processor.h>