mm/filemap: Add filemap_get_folio

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filemap_get_folio() is a replacement for find_get_page().
Turn pagecache_get_page() into a wrapper around __filemap_get_folio().
Remove find_lock_head() as this use case is now covered by
filemap_get_folio().

Reduces overall kernel size by 209 bytes.  __filemap_get_folio() is
316 bytes shorter than pagecache_get_page() was, but the new
pagecache_get_page() wrapper is 99 bytes.

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

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This commit is contained in:

Matthew Wilcox (Oracle) 2021-03-08 11:45:35 -05:00

parent bca65eeab1

commit 3f0c6a07fe

3 changed files with 76 additions and 69 deletions

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41

include/linux/pagemap.h

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92

mm/filemap.c

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12

mm/folio-compat.c

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