Author: oshogbo Date: Mon Feb 27 17:54:01 2017 New Revision: 314359 URL: https://svnweb.freebsd.org/changeset/base/314359
Log: Add sysctl to control auto resize of the GEOM metadata. Reviewed by: AllanJude Differential Revision: https://reviews.freebsd.org/D9603 Modified: head/sbin/geom/class/part/gpart.8 head/sys/geom/part/g_part.c Modified: head/sbin/geom/class/part/gpart.8 ============================================================================== --- head/sbin/geom/class/part/gpart.8 Mon Feb 27 17:50:38 2017 (r314358) +++ head/sbin/geom/class/part/gpart.8 Mon Feb 27 17:54:01 2017 (r314359) @@ -1146,6 +1146,18 @@ variables can be used to control the beh GEOM class. The default value is shown next to each variable. .Bl -tag -width indent +.It Va kern.geom.part.auto_resize: No 1 +This variable controls automatic resize behavior of +.Nm +GEOM class. +When this variable is enable and new size of provider is detected, the schema +metadata is resized but all changes are not saved to disk, until +.Cm gpart commit +is run to confirm changes. +This behavior is also reported with diagnostic message: +.Sy "GEOM_PART: (provider) was automatically resized." +.Sy "Use `gpart commit (provider)` to save changes or `gpart undo (provider)`" +.Sy "to revert them." .It Va kern.geom.part.check_integrity : No 1 This variable controls the behaviour of metadata integrity checks. When integrity checks are enabled, the Modified: head/sys/geom/part/g_part.c ============================================================================== --- head/sys/geom/part/g_part.c Mon Feb 27 17:50:38 2017 (r314358) +++ head/sys/geom/part/g_part.c Mon Feb 27 17:54:01 2017 (r314359) @@ -135,6 +135,10 @@ static u_int check_integrity = 1; SYSCTL_UINT(_kern_geom_part, OID_AUTO, check_integrity, CTLFLAG_RWTUN, &check_integrity, 1, "Enable integrity checking"); +static u_int auto_resize = 1; +SYSCTL_UINT(_kern_geom_part, OID_AUTO, auto_resize, + CTLFLAG_RW, &auto_resize, 1, + "Enable auto resize"); /* * The GEOM partitioning class. @@ -2095,6 +2099,9 @@ g_part_resize(struct g_consumer *cp) G_PART_TRACE((G_T_TOPOLOGY, "%s(%s)", __func__, cp->provider->name)); g_topology_assert(); + if (auto_resize == 0) + return; + table = cp->geom->softc; if (table->gpt_opened == 0) { if (g_access(cp, 1, 1, 1) != 0) _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
