Date: Fri, 20 Jul 2012 17:51:20 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r238657 - head/sys/geom/part Message-ID: <201207201751.q6KHpKiQ022210@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: trasz Date: Fri Jul 20 17:51:20 2012 New Revision: 238657 URL: http://svn.freebsd.org/changeset/base/238657 Log: Make it possible to resize opened partitions. Sponsored by: FreeBSD Foundation Modified: head/sys/geom/part/g_part.c Modified: head/sys/geom/part/g_part.c ============================================================================== --- head/sys/geom/part/g_part.c Fri Jul 20 16:56:34 2012 (r238656) +++ head/sys/geom/part/g_part.c Fri Jul 20 17:51:20 2012 (r238657) @@ -1257,6 +1257,7 @@ g_part_ctl_resize(struct gctl_req *req, struct sbuf *sb; quad_t end; int error; + off_t mediasize; gp = gpp->gpp_geom; G_PART_TRACE((G_T_TOPOLOGY, "%s(%s)", __func__, gp->name)); @@ -1301,8 +1302,11 @@ g_part_ctl_resize(struct gctl_req *req, pp = entry->gpe_pp; if ((g_debugflags & 16) == 0 && (pp->acr > 0 || pp->acw > 0 || pp->ace > 0)) { - gctl_error(req, "%d", EBUSY); - return (EBUSY); + if (entry->gpe_end - entry->gpe_start + 1 > gpp->gpp_size) { + /* Deny shrinking of an opened partition. */ + gctl_error(req, "%d", EBUSY); + return (EBUSY); + } } error = G_PART_RESIZE(table, entry, gpp); @@ -1315,8 +1319,9 @@ g_part_ctl_resize(struct gctl_req *req, entry->gpe_modified = 1; /* update mediasize of changed provider */ - pp->mediasize = (entry->gpe_end - entry->gpe_start + 1) * + mediasize = (entry->gpe_end - entry->gpe_start + 1) * pp->sectorsize; + g_resize_provider(pp, mediasize); /* Provide feedback if so requested. */ if (gpp->gpp_parms & G_PART_PARM_OUTPUT) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201207201751.q6KHpKiQ022210>