From 1aa8aea535977f0e0b398f39d052e7befff81da6 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 19 May 2016 17:12:00 -0700 Subject: 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 Cc: Kirill A. Shutemov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 21 +-------------------- 1 file changed, 1 insertion(+), 20 deletions(-) (limited to 'include/linux') 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 -- cgit v1.2.3