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Shutemov\"" , Johannes Weiner , Baolin Wang , Kemeng Shi , Mel Gorman , Rohan Puri , Mcgrof Chamberlain , Adam Manzanares , "\"Vishal Moola (Oracle)\"" Subject: Re: [PATCH v1 1/4] mm/compaction: enable compacting >0 order folios. 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> > Nit: folio_test_large() is more efficient than folio_order() > 0. > The former simply tests the bit, while the second tests the bit, then > loads folio->_order to check it's >0. We know it will be, but there's > no way to tell gcc that if the bit is set, this value is definitely not 0. Got it. Make sense. Will change it in next version. Thanks. -- Best Regards, Yan, Zi --=_MailMate_588929EE-9BE3-4C78-8BE6-F94834E8E000_= Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQJDBAEBCgAtFiEE6rR4j8RuQ2XmaZol4n+egRQHKFQFAmVSd3YPHHppeUBudmlk aWEuY29tAAoJEOJ/noEUByhUPOsQAJbgdgyBaLe5+nTlKMuIxgfKFGCKCKP7qsEJ EJ3YwUsDUUF74P2/Q6NdbTz2QAZresMkIqXsMp2YLuHDKXjqRdEQHd3NXYzNGO+z zUW/Baj8+JF3hgpn4MFBYpnd73XJI5H9lK5zS3uMlx090vChMCPJxeXMyF/DKwvg bhs7ULAMNVe7huaafGcS+UPi5JjmYTJEYnQztdksXuWP/MscvKStUfsymK/72Rfg lMdRDaQZuOoqAiXPB8qH3+cYfIt6lEprzs/AXALt0QDD/npvuCvA1uSYOHaQbbBS oyym1SPpna0q13MEqLtC/JACZhHoprIScDw+E7rnxwGUJVxvquo7dycNeh/M0odG 8hUhPzQUKthaLw6kzB/3/p8seyR7afDqKZ309kflqW+MyTWqQ67I9pDdDxetvoYX nfPLlMxJzPiKpkHzqBf+ohFCUO09mkdeiqaJujLrSlBdxxr93bLecm67cLZf1LiH e+DdU+Bx2BFNIIFheYEtct7Vc13DVDxNSSXxs2lXVYvmdNM42T7Ks6w/95bQzVQr GPNYiNXW3/HoAbE0HJmGETzzXA+lKm08EsmAaQFyEVzkzoCwHG7TvKapp+z2StD+ YdP+eSa854/HIa3UmTzJkVZnavdtGmhmMVqiFvI5yIxQH0/YbVOaVp3esEtK0MAR xr1LF8lZ =A1/5 -----END PGP SIGNATURE----- --=_MailMate_588929EE-9BE3-4C78-8BE6-F94834E8E000_=--