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Make it possible to resize opened partitions.

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Sponsored by:	FreeBSD Foundation
This commit is contained in:
Edward Tomasz Napierala 2012-07-20 17:51:20 +00:00
parent b75ca29147
commit a1cf7f75a6
1 changed files with 8 additions and 3 deletions
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11
sys/geom/part/g_part.c
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@ -1257,6 +1257,7 @@ g_part_ctl_resize(struct gctl_req *req, struct g_part_parms *gpp)
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, struct g_part_parms *gpp)
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, struct g_part_parms *gpp)
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) {