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Date:      Thu, 24 Sep 2020 08:38:01 +0200
From:      Alexander Leidinger <Alexander@leidinger.net>
To:        Konstantin Belousov <kostikbel@gmail.com>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: RFC: copy_file_range(3)
Message-ID:  <20200924083801.Horde.AFG5vwsVvqadT4ehn1ol2q1@webmail.leidinger.net>
In-Reply-To: <20200923224308.GK2570@kib.kiev.ua>
References:  <CAOtMX2iFZZpoj%2Bap21rrju4hJoip6ZoyxEiCB8852NeH7DAN0Q@mail.gmail.com> <YTBPR01MB39666188FC89399B0D632FE8DD3D0@YTBPR01MB3966.CANPRD01.PROD.OUTLOOK.COM> <CAOtMX2gMYdcx0CUC1Mky3ETFr1JkBbYzn17i11axSW=HRTL7OA@mail.gmail.com> <YTBPR01MB3966C1D4D10BE836B37955F5DD3D0@YTBPR01MB3966.CANPRD01.PROD.OUTLOOK.COM> <CAOtMX2jHMRD0Hno03f2dqjJToR152u8d-_40GM_%2BBvNPkN_smA@mail.gmail.com> <YTBPR01MB3966BA18F43F7B6353171E67DD380@YTBPR01MB3966.CANPRD01.PROD.OUTLOOK.COM> <20200923122401.Horde.uXmEqpCzVbCyXTuyukZeRwU@webmail.leidinger.net> <20200923145615.GH2570@kib.kiev.ua> <20200923212135.Horde.KVi_zSxPaGuNqcGzm_Qxani@webmail.leidinger.net> <20200923224308.GK2570@kib.kiev.ua>

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Quoting Konstantin Belousov <kostikbel@gmail.com> (from Thu, 24 Sep=20=20
2020=2001:43:08 +0300):

> Bypass mean that nullfs forwards the call to corresponding VOP of the
> lower vnode.
[...]
> AFAIR, only NFS client implements non-default implementation for
> copy_file_range() VOP.  So UFS/ZFS/msdosfs use vn_generic_copy_file_range=
().
[...]

Great! Thanks for the info / explanation.

Bye,
Alexander

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