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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2015-04-16 02:14:53 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-16 02:35:19 +0300
commite39155ea11eac6da056b04669d7c9fc612e2065a (patch)
treed7a23caf03ac668c502b620303b170f721f56ef5 /include
parent99e8ea6cd2210cf2271f922384b483cd83f0f8f3 (diff)
downloadlinux-e39155ea11eac6da056b04669d7c9fc612e2065a.tar.xz
mm: uninline and cleanup page-mapping related helpers
Most-used page->mapping helper -- page_mapping() -- has already uninlined. Let's uninline also page_rmapping() and page_anon_vma(). It saves us depending on configuration around 400 bytes in text: text data bss dec hex filename 660318 99254 410000 1169572 11d8a4 mm/built-in.o-before 659854 99254 410000 1169108 11d6d4 mm/built-in.o I also tried to make code a bit more clean. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Christoph Lameter <cl@linux.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h8
-rw-r--r--include/linux/rmap.h8
2 files changed, 2 insertions, 14 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 68c21b2374c4..0e7bb2194da5 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -950,14 +950,10 @@ void page_address_init(void);
#define page_address_init() do { } while(0)
#endif
+extern void *page_rmapping(struct page *page);
+extern struct anon_vma *page_anon_vma(struct page *page);
extern struct address_space *page_mapping(struct page *page);
-/* Neutral page->mapping pointer to address_space or anon_vma or other */
-static inline void *page_rmapping(struct page *page)
-{
- return (void *)((unsigned long)page->mapping & ~PAGE_MAPPING_FLAGS);
-}
-
extern struct address_space *__page_file_mapping(struct page *);
static inline
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index c4c559a45dc8..c89c53a113a8 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -105,14 +105,6 @@ static inline void put_anon_vma(struct anon_vma *anon_vma)
__put_anon_vma(anon_vma);
}
-static inline struct anon_vma *page_anon_vma(struct page *page)
-{
- if (((unsigned long)page->mapping & PAGE_MAPPING_FLAGS) !=
- PAGE_MAPPING_ANON)
- return NULL;
- return page_rmapping(page);
-}
-
static inline void vma_lock_anon_vma(struct vm_area_struct *vma)
{
struct anon_vma *anon_vma = vma->anon_vma;