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Date:      Mon, 23 Jun 2014 15:25:09 -0400
From:      Allan Jude <allanjude@freebsd.org>
To:        freebsd-current@freebsd.org
Subject:   Re: FreeBSD 10 and zfsd
Message-ID:  <53A87F15.4040501@freebsd.org>
In-Reply-To: <CAOtMX2jshon9w37PxcwhH94fd0v7UPbXRdch0iuzOtba3PBPZQ@mail.gmail.com>
References:  <5256B761.4050301@gmail.com> <CAOtMX2i5hxdp8=4sHQgu2MOjpv9jqd6D7LV-a8y7S6cuCBgYuw@mail.gmail.com> <1381421583.19140.32451849.084D8E32@webmail.messagingengine.com> <5256E2D5.4060101@allanjude.com> <CAOtMX2hRDCFzmyi2s76j=0AufqAab_UzVi73dBR9t_AsZ6n6=g@mail.gmail.com> <1387388390.28188.61199633.413D38F8@webmail.messagingengine.com> <CAKYr3zw_K242JyxURJ-sJHs7YZz2L99LtJtgX0O6ofDzXq=Cwg@mail.gmail.com> <CAOtMX2juAfiRg4mMSrdKyYmY8Lh3rKu5ArrSW%2BQ_1OKmEWURxg@mail.gmail.com> <CAKYr3zzLSYqZxJ4tgnzdD63dAmfagA-PqVeRPuNPuM7X6f0wEQ@mail.gmail.com> <CAOtMX2jqC0EpWKrUH6kFyq8mdECUUTs1xtTkvKyUwAqP5koQXg@mail.gmail.com> <CAKYr3zxsNs82g0ph=G7YuRYMZKYhWnrv8vFF=dKKDjUVt2zxqQ@mail.gmail.com> <CAOtMX2hbaUJoYaNMSRTdLNKtioc5Wb4hbcXnZ16th_ATUf0c1w@mail.gmail.com> <BB2F8712-2A1E-40AC-82CF-F61F8023405B@FreeBSD.org> <CAOtMX2g2bc0xBBr6w-eoq7pAqnrhCmQsRj81f2ZAB%2Bp1SKL=nQ@mail.gmail.com> <53A7CE1B.7090400@gmail.com> <CAOtMX2jshon9w37PxcwhH94fd0v7UPbXRdch0iuzOtba3PBPZQ@mail.gmail.com>

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On 2014-06-23 12:39, Alan Somers wrote:
> The projects/zfsd project branch is up to date.  Merging it to CURRENT
> is blocked on these tasks.
>=20
> 1) (The biggie) We must resolve the issue with multiple geom opens.
> Geom tries to prevent any two consumers from simultaneously opening
> the same provider.  This is why, for example, you can't do dd
> if=3D/dev/zero of=3D/dev/ada0 if your ada0 has a mounted file system.
> However, ZFS internally opens spare devices multiple times.  The only
> way that geom will allow that is if ZFS opens devices non-exclusively.
> That means that you will lose your protection.  Fixing this correctly
> requires deep changes to ZFS to remove the multiple opens.
>=20
> 2) Need to merge in zfsd's functional tests.  I'm currently working on
> this issue as time allows.
>=20
> 3) It needs a manpage.

I can help with a man page. Is there an outline or readme to start from?

>=20
> 4) Various bug fixes need to be merged to the kernel and to LibZFS.
> Coordinating with Illumos makes that process slow.  will@ is working
> on it as time allows.
>=20
> 5) libdevctl needs to be made private
>=20
> 6) The sequential packet feature added to devd in the zfsd project
> branch at revision r266519 must be merged to head.  It's currently
> waiting for review from imp@ and ian@.
>=20
> For TrueNAS, I believe that delphij@ merged an older version of zfsd
> from the project branch.
>=20
> -Alan
>=20

--=20
Allan Jude


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