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Message-Id: <20171212173334.002013487@linutronix.de>
Date: Tue, 12 Dec 2017 18:32:30 +0100
From: Thomas Gleixner <tglx@linutronix.de>
Subject: [patch 09/16] mm: Make populate_vma_page_range() available
References: <20171212173221.496222173@linutronix.de>
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 filename=mm--Make-populate_vma_page_range---available.patch
Sender: owner-linux-mm@kvack.org
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To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Linus Torvalds <torvalds@linux-foundation.org>, Andy Lutomirsky <luto@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Dave Hansen <dave.hansen@intel.com>, Borislav Petkov <bpetkov@suse.de>, Greg KH <gregkh@linuxfoundation.org>, keescook@google.com, hughd@google.com, Brian Gerst <brgerst@gmail.com>, Josh Poimboeuf <jpoimboe@redhat.com>, Denys Vlasenko <dvlasenk@redhat.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, Juergen Gross <jgross@suse.com>, David Laight <David.Laight@aculab.com>, Eduardo Valentin <eduval@amazon.com>, aliguori@amazon.com, Will Deacon <will.deacon@arm.com>, linux-mm@kvack.org

From: Peter Zijlstra <peterz@infradead.org>

Make populate_vma_page_range() outside mm, so special mappings can be
populated in dup_mmap().

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/linux/mm.h |    2 ++
 mm/internal.h      |    2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2159,6 +2159,8 @@ do_mmap_pgoff(struct file *file, unsigne
 }
 
 #ifdef CONFIG_MMU
+extern long populate_vma_page_range(struct vm_area_struct *vma,
+		unsigned long start, unsigned long end, int *nonblocking);
 extern int __mm_populate(unsigned long addr, unsigned long len,
 			 int ignore_errors);
 static inline void mm_populate(unsigned long addr, unsigned long len)
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -284,8 +284,6 @@ void __vma_link_list(struct mm_struct *m
 		struct vm_area_struct *prev, struct rb_node *rb_parent);
 
 #ifdef CONFIG_MMU
-extern long populate_vma_page_range(struct vm_area_struct *vma,
-		unsigned long start, unsigned long end, int *nonblocking);
 extern void munlock_vma_pages_range(struct vm_area_struct *vma,
 			unsigned long start, unsigned long end);
 static inline void munlock_vma_pages_all(struct vm_area_struct *vma)


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