mm/filemap: Convert mapping_get_entry to return a folio

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The pagecache only contains folios, so indicate that this is definitely
not a tail page.  Shrinks mapping_get_entry() by 56 bytes, but grows
pagecache_get_page() by 21 bytes as gcc makes slightly different hot/cold
code decisions.  A net reduction of 35 bytes of text.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>

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Matthew Wilcox (Oracle) 2020-12-15 23:22:38 -05:00

parent 9dd3d06940

commit bca65eeab1

1 changed files with 14 additions and 21 deletions

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35

mm/filemap.c

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