The patch titled
Subject: mm: remove arch_remap() and mm-arch-hooks.h
has been added to the -mm tree. Its filename is
mm-remove-arch_remap-and-mm-arch-hooksh.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-remove-arch_remap-and-mm-arch-hooksh.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-remove-arch_remap-and-mm-arch-hooksh.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Subject: mm: remove arch_remap() and mm-arch-hooks.h
powerpc was the last provider of arch_remap() and the last user of
mm-arch-hooks.h.
Since commit 526a9c4a7234 ("powerpc/vdso: Provide vdso_remap()"),
arch_remap() hence mm-arch-hooks.h are not used anymore.
Remove them.
Link: https://lkml.kernel.org/r/320d7a9ed7b379a6e0edf16d539bc22447272e65.1608299993.git.christophe.leroy@xxxxxxxxxx
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/um/include/asm/Kbuild | 1 -
include/asm-generic/Kbuild | 1 -
include/asm-generic/mm-arch-hooks.h | 16 ----------------
include/linux/mm-arch-hooks.h | 22 ----------------------
mm/mremap.c | 3 ---
5 files changed, 43 deletions(-)
--- a/arch/um/include/asm/Kbuild~mm-remove-arch_remap-and-mm-arch-hooksh
+++ a/arch/um/include/asm/Kbuild
@@ -14,7 +14,6 @@ generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
generic-y += mmiowb.h
generic-y += module.lds.h
generic-y += param.h
--- a/include/asm-generic/Kbuild~mm-remove-arch_remap-and-mm-arch-hooksh
+++ a/include/asm-generic/Kbuild
@@ -34,7 +34,6 @@ mandatory-y += kmap_size.h
mandatory-y += kprobes.h
mandatory-y += linkage.h
mandatory-y += local.h
-mandatory-y += mm-arch-hooks.h
mandatory-y += mmiowb.h
mandatory-y += mmu.h
mandatory-y += mmu_context.h
--- a/include/asm-generic/mm-arch-hooks.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Architecture specific mm hooks
- */
-
-#ifndef _ASM_GENERIC_MM_ARCH_HOOKS_H
-#define _ASM_GENERIC_MM_ARCH_HOOKS_H
-
-/*
- * This file should be included through arch/../include/asm/Kbuild for
- * the architecture which doesn't need specific mm hooks.
- *
- * In that case, the generic hooks defined in include/linux/mm-arch-hooks.h
- * are used.
- */
-
-#endif /* _ASM_GENERIC_MM_ARCH_HOOKS_H */
--- a/include/linux/mm-arch-hooks.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Generic mm no-op hooks.
- *
- * Copyright (C) 2015, IBM Corporation
- * Author: Laurent Dufour <ldufour@xxxxxxxxxxxxxxxxxx>
- */
-#ifndef _LINUX_MM_ARCH_HOOKS_H
-#define _LINUX_MM_ARCH_HOOKS_H
-
-#include <asm/mm-arch-hooks.h>
-
-#ifndef arch_remap
-static inline void arch_remap(struct mm_struct *mm,
- unsigned long old_start, unsigned long old_end,
- unsigned long new_start, unsigned long new_end)
-{
-}
-#define arch_remap arch_remap
-#endif
-
-#endif /* _LINUX_MM_ARCH_HOOKS_H */
--- a/mm/mremap.c~mm-remove-arch_remap-and-mm-arch-hooksh
+++ a/mm/mremap.c
@@ -22,7 +22,6 @@
#include <linux/syscalls.h>
#include <linux/mmu_notifier.h>
#include <linux/uaccess.h>
-#include <linux/mm-arch-hooks.h>
#include <linux/userfaultfd_k.h>
#include <asm/cacheflush.h>
@@ -562,8 +561,6 @@ static unsigned long move_vma(struct vm_
new_addr = err;
} else {
mremap_userfaultfd_prep(new_vma, uf);
- arch_remap(mm, old_addr, old_addr + old_len,
- new_addr, new_addr + new_len);
}
/* Conceal VM_ACCOUNT so old reservation is not undone */
_
Patches currently in -mm which might be from christophe.leroy@xxxxxxxxxx are
mm-remove-arch_remap-and-mm-arch-hooksh.patch
