diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2016-05-19 17:12:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-19 19:12:14 -0700 |
| commit | 1aa8aea535977f0e0b398f39d052e7befff81da6 (patch) | |
| tree | b62bccedaf7ff2763dfc3788557482d16eb1cb46 /include/linux/mm.h | |
| parent | 29f9cb53d25cd9916537b44b0af7f0b95a2e4438 (diff) | |
mm: uninline page_mapped()
It's huge. Uninlining it saves 206 bytes per callsite. Shaves 4924
bytes from the x86_64 allmodconfig vmlinux.
[akpm@linux-foundation.org: coding-style fixes]
Cc: Steve Capper <steve.capper@arm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 21 |
1 files changed, 1 insertions, 20 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 5b375133c695..9c2852cabf01 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1032,26 +1032,7 @@ static inline pgoff_t page_file_index(struct page *page) return page->index; } -/* - * Return true if this page is mapped into pagetables. - * For compound page it returns true if any subpage of compound page is mapped. - */ -static inline bool page_mapped(struct page *page) -{ - int i; - if (likely(!PageCompound(page))) - return atomic_read(&page->_mapcount) >= 0; - page = compound_head(page); - if (atomic_read(compound_mapcount_ptr(page)) >= 0) - return true; - if (PageHuge(page)) - return false; - for (i = 0; i < hpage_nr_pages(page); i++) { - if (atomic_read(&page[i]._mapcount) >= 0) - return true; - } - return false; -} +bool page_mapped(struct page *page); /* * Return true only if the page has been allocated with |