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mm: remove page_file_index

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After using the offset of the swap entry as the key of the swap cache,
the page_index() becomes exactly same as page_file_index().  So the
page_file_index() is removed and the callers are changed to use
page_index() instead.

Link: http://lkml.kernel.org/r/1473270649-27229-2-git-send-email-ying.huang@intel.com
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: Anna Schumaker <anna.schumaker@netapp.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Huang Ying 2016-10-07 17:00:24 -07:00 • committed by Linus Torvalds
parent f6ab1f7f6b
commit 8cd797887a
6 changed files with 8 additions and 20 deletions
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12
include/linux/mm.h
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@ -1061,18 +1061,6 @@ static inline pgoff_t page_index(struct page *page)
return page->index;
}
/*
* Return the file index of the page. Regular pagecache pages use ->index
* whereas swapcache pages use swp_offset(->private)
*/
static inline pgoff_t page_file_index(struct page *page)
{
if (unlikely(PageSwapCache(page)))
return __page_file_index(page);
return page->index;
}
bool page_mapped(struct page *page);
struct address_space *page_mapping(struct page *page);