| Subject | Re: [PATCH v14 017/138] mm/filemap: Add folio_unlock() | From | Vlastimil Babka <> | Date | Tue, 10 Aug 2021 18:04:34 +0200 |
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On 7/15/21 5:35 AM, Matthew Wilcox (Oracle) wrote: > Convert unlock_page() to call folio_unlock(). By using a folio we > avoid a call to compound_head(). This shortens the function from 39 > bytes to 25 and removes 4 instructions on x86-64. Because we still > have unlock_page(), it's a net increase of 16 bytes of text for the > kernel as a whole, but any path that uses folio_unlock() will execute > 4 fewer instructions. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> > Reviewed-by: Christoph Hellwig <hch@lst.de> > Acked-by: Jeff Layton <jlayton@kernel.org> > Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> > Reviewed-by: William Kucharski <william.kucharski@oracle.com> > Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
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