Date: Tue, 28 Feb 2017 15:05:23 +0300 From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: Andriy Gapon <avg@FreeBSD.org>, freebsd-geom@FreeBSD.org Subject: Re: GEOM_PART: zvol/pond/xxx was automatically resized, every boot Message-ID: <49828d0f-fe1c-f635-82c7-b63a32b6bba9@FreeBSD.org> In-Reply-To: <cfbca2ca-57ec-2b49-b99e-2df794254b46@FreeBSD.org> References: <cfbca2ca-57ec-2b49-b99e-2df794254b46@FreeBSD.org>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --CWjdgrBH15C5AhFpe53762MbtwqDKmFRT Content-Type: multipart/mixed; boundary="QoEGFsv31HWcWsp3EGLn16Mlk9CpkRDgA"; protected-headers="v1" From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: Andriy Gapon <avg@FreeBSD.org>, freebsd-geom@FreeBSD.org Message-ID: <49828d0f-fe1c-f635-82c7-b63a32b6bba9@FreeBSD.org> Subject: Re: GEOM_PART: zvol/pond/xxx was automatically resized, every boot References: <cfbca2ca-57ec-2b49-b99e-2df794254b46@FreeBSD.org> In-Reply-To: <cfbca2ca-57ec-2b49-b99e-2df794254b46@FreeBSD.org> --QoEGFsv31HWcWsp3EGLn16Mlk9CpkRDgA Content-Type: multipart/mixed; boundary="------------E88C7528E6DEDB205227EAD0" This is a multi-part message in MIME format. --------------E88C7528E6DEDB205227EAD0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 28.02.2017 13:00, Andriy Gapon wrote: > This is quite annoying as I have to do gpart commit after each reboot t= o make my > zvols usable. >=20 > To add some data: >> gpart show zvol/pond/raidz0 > =3D> 63 10485697 zvol/pond/raidz0 MBR (5.0G) > 63 10485697 - free - (5.0G) >=20 > The zvol actually has whole-disk ZFS on it, which uses zfsboot for boot= ing. > In other words, the first block of the zvol is the first block of zfsbo= ot binary. Hi Andriy, I think the attached (untested) patch can help. --=20 WBR, Andrey V. Elsukov --------------E88C7528E6DEDB205227EAD0 Content-Type: text/x-patch; name="zvol.diff" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="zvol.diff" Index: sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c (revision 31429= 8) +++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c (working copy) @@ -278,7 +278,15 @@ zvol_size_changed(zvol_state_t *zv, uint64_t volsi if (pp =3D=3D NULL) return; g_topology_lock(); - g_resize_provider(pp, zv->zv_volsize); + /* + * Do not invoke resize event when initial size was zero. + * ZVOL initializes the size on first open, this is not + * real resizing. + */ + if (pp->mediasize =3D=3D 0) + pp->mediasize =3D zv->zv_volsize; + else + g_resize_provider(pp, zv->zv_volsize); g_topology_unlock(); } #endif /* illumos */ --------------E88C7528E6DEDB205227EAD0-- --QoEGFsv31HWcWsp3EGLn16Mlk9CpkRDgA-- --CWjdgrBH15C5AhFpe53762MbtwqDKmFRT Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAli1Z4MACgkQAcXqBBDI oXovtwf/a0fJ+Ua8qaakFfs4n20BLscM+K7oWqebaSbUAjO1FNQwQmb0D97TAlrq K/Qn/iuawv1R3Ox4oDcfwgX0tQcUBWoteTcuxuHbdY72dVN9iQc0rPY1tkEJfhf7 uWE7uRxhKdoJbp3Es3BGgf071VoJYpIs5QGEpeDANg25UcqSXBAGSFIkNVLBH0LK vemd58CMyugPlJGnsRC3xvFU8nmmoifi8YqKoZ+pbYsA9z4byVfWrPmNWy4n3K2H T/uKfNxuZ6fioisyaZjazw4zfP6pbDQlh02RhtNjfDMgUZ07wNnBTFb7sLxbkyCO 57XAJHtJsLphOtqMZ+t2AW29ykSFqw== =apL4 -----END PGP SIGNATURE----- --CWjdgrBH15C5AhFpe53762MbtwqDKmFRT--
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