Date: Sun, 31 Mar 2013 14:38:46 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Maksim Yevmenkin <maksim.yevmenkin@gmail.com> Cc: current@freebsd.org Subject: Re: [RFC] vfs.read_min proposal Message-ID: <20130331113846.GK3794@kib.kiev.ua> In-Reply-To: <CAFPOs6oKxhZ4FjpQJNuRyhE1J2qS4-SjfN_F1VnLL18jroMHdw@mail.gmail.com> References: <CAFPOs6rNDZTqWJZ3hK=px5RX5G44Z3hfzCLQcfceQ2n_7oU3GA@mail.gmail.com> <20130328075209.GL3794@kib.kiev.ua> <CAFPOs6qo7yHgpUWsnLb0hJ9S5_fjbFvh__2-n6MQLHOVdUQmOQ@mail.gmail.com> <20130329205853.GB3794@kib.kiev.ua> <CAFPOs6oKxhZ4FjpQJNuRyhE1J2qS4-SjfN_F1VnLL18jroMHdw@mail.gmail.com>
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--7mGvLjfjOoK1a/VV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Mar 29, 2013 at 04:57:48PM -0700, Maksim Yevmenkin wrote: > On Fri, Mar 29, 2013 at 1:58 PM, Konstantin Belousov > <kostikbel@gmail.com> wrote: > > I think this is definitely a feature that should be set by a flag to > > either file descriptor used for aio_read, or aio_read call itself. > > Adding a flag to aio_read() might be cumbersome from the ABI perspectiv= e. >=20 > something along the lines of ioctl(F_READAHEAD)/f_seqcount might be > acceptable, dont you think? This is exactly what I talked about starting from the first response. aio_read proposal is some (not-neccessary) refinement. --7mGvLjfjOoK1a/VV Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iQIcBAEBAgAGBQJRWCBGAAoJEJDCuSvBvK1BF9sP/jNkaAia6m8uTAvQ3qj6pXPF vclBLALfCimGlgoRTZuncyP4UxatZ++EPfA2RAxqMfD6RuY0ooyIJB2riHirF1uG Gh0F6A0zRHiSphCb0UBUO4VHl8K76FAvTW4Z57WIVSLKGUR6EXgzDYbI9fMwHsRw tp9Em5T6BHsQkdnFwvNAp92A5G+kpE6AJ67DyimLZnGEMHKxQTbFxT4o9XvMwHzF l2lVon0R3nFILtOXFzNd9pUSnpjTMxesqnX2/9xHvgnFKizpep72wLjZ/+bZmDaO j2BL7M9nC5SzWZJgU3JLuGBfksEBiWXQh/F06tMlVIRaRxxQiFpoyf16T4+UV8J7 3Dv0CrVsM4AdVxwllp0EsvseeZ4hPlNoe/5IGZqG/9e3lDb54zxFxsfRxB3msELO /4ED61MXx30jnq/G7Ak/Qv90/feO5X/O5TZ91Q8i/ej8z1UAU2XQSTIoBhCd5jbm 5YU3aIvrL/LV5DYz14ymohsnK8qvy6g2PquiZtAj7hxgSRmk2p3rXYKVAd4S5+HN YK8Gd7xSCtQTyX0vUIh6OCRQujVgQIUVSPOWotuUOll41jYmGfF+v6RzcK9XTuJZ ZqXSXYLHoGbqWZd6N8SBDUyHiOJWyBn29a17qX7b3goKGDsxQ36s2A1F3kGSefZY GQ+wBHqVQFXarSEuY9H8 =e6W+ -----END PGP SIGNATURE----- --7mGvLjfjOoK1a/VV--
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