diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-04-16 02:14:53 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-16 02:35:19 +0300 |
| commit | e39155ea11eac6da056b04669d7c9fc612e2065a (patch) | |
| tree | d7a23caf03ac668c502b620303b170f721f56ef5 /include | |
| parent | 99e8ea6cd2210cf2271f922384b483cd83f0f8f3 (diff) | |
| download | linux-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.h | 8 | ||||
| -rw-r--r-- | include/linux/rmap.h | 8 |
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; |