[merged] mm-page_ext-constify-lookup_page_ext-argument.patch removed from -mm tree

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The patch titled
     Subject: mm/page_ext.c: constify lookup_page_ext() argument
has been removed from the -mm tree.  Its filename was
     mm-page_ext-constify-lookup_page_ext-argument.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: mm/page_ext.c: constify lookup_page_ext() argument

lookup_page_ext() finds 'struct page_ext' for a given page.  It requires
only read access to the given struct page.

Current implemnentation takes 'struct page *' as an argument.  It makes
compiler complain when 'const struct page *' passed.

Change the argument to 'const struct page *'.

Link: http://lkml.kernel.org/r/20180531135457.20167-3-kirill.shutemov@xxxxxxxxxxxxxxx
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Vinayak Menon <vinmenon@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 include/linux/page_ext.h |    4 ++--
 mm/page_ext.c            |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

--- a/include/linux/page_ext.h~mm-page_ext-constify-lookup_page_ext-argument
+++ a/include/linux/page_ext.h
@@ -50,7 +50,7 @@ static inline void page_ext_init(void)
 }
 #endif
 
-struct page_ext *lookup_page_ext(struct page *page);
+struct page_ext *lookup_page_ext(const struct page *page);
 
 #else /* !CONFIG_PAGE_EXTENSION */
 struct page_ext;
@@ -59,7 +59,7 @@ static inline void pgdat_page_ext_init(s
 {
 }
 
-static inline struct page_ext *lookup_page_ext(struct page *page)
+static inline struct page_ext *lookup_page_ext(const struct page *page)
 {
 	return NULL;
 }
--- a/mm/page_ext.c~mm-page_ext-constify-lookup_page_ext-argument
+++ a/mm/page_ext.c
@@ -120,7 +120,7 @@ void __meminit pgdat_page_ext_init(struc
 	pgdat->node_page_ext = NULL;
 }
 
-struct page_ext *lookup_page_ext(struct page *page)
+struct page_ext *lookup_page_ext(const struct page *page)
 {
 	unsigned long pfn = page_to_pfn(page);
 	unsigned long index;
@@ -195,7 +195,7 @@ fail:
 
 #else /* CONFIG_FLAT_NODE_MEM_MAP */
 
-struct page_ext *lookup_page_ext(struct page *page)
+struct page_ext *lookup_page_ext(const struct page *page)
 {
 	unsigned long pfn = page_to_pfn(page);
 	struct mem_section *section = __pfn_to_section(pfn);
_

Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are





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