svn commit: r207094 - head/sys/geom/part
Marcel Moolenaar
marcel at FreeBSD.org
Fri Apr 23 03:11:40 UTC 2010
Author: marcel
Date: Fri Apr 23 03:11:39 2010
New Revision: 207094
URL: http://svn.freebsd.org/changeset/base/207094
Log:
Implement the resize verb and add support for resizing partitions
for all schemes but EBR. Quality work by Andrey!
Submitted by: "Andrey V. Elsukov" <bu7cher at yandex.ru>
Modified:
head/sys/geom/part/g_part.c
head/sys/geom/part/g_part_apm.c
head/sys/geom/part/g_part_bsd.c
head/sys/geom/part/g_part_gpt.c
head/sys/geom/part/g_part_if.m
head/sys/geom/part/g_part_mbr.c
head/sys/geom/part/g_part_pc98.c
head/sys/geom/part/g_part_vtoc8.c
Modified: head/sys/geom/part/g_part.c
==============================================================================
--- head/sys/geom/part/g_part.c Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part.c Fri Apr 23 03:11:39 2010 (r207094)
@@ -971,9 +971,85 @@ g_part_ctl_recover(struct gctl_req *req,
static int
g_part_ctl_resize(struct gctl_req *req, struct g_part_parms *gpp)
{
- gctl_error(req, "%d verb 'resize'", ENOSYS);
- return (ENOSYS);
-}
+ struct g_geom *gp;
+ struct g_provider *pp;
+ struct g_part_entry *pe, *entry;
+ struct g_part_table *table;
+ struct sbuf *sb;
+ quad_t end;
+ int error;
+
+ gp = gpp->gpp_geom;
+ G_PART_TRACE((G_T_TOPOLOGY, "%s(%s)", __func__, gp->name));
+ g_topology_assert();
+ table = gp->softc;
+
+ /* check gpp_index */
+ LIST_FOREACH(entry, &table->gpt_entry, gpe_entry) {
+ if (entry->gpe_deleted || entry->gpe_internal)
+ continue;
+ if (entry->gpe_index == gpp->gpp_index)
+ break;
+ }
+ if (entry == NULL) {
+ gctl_error(req, "%d index '%d'", ENOENT, gpp->gpp_index);
+ return (ENOENT);
+ }
+
+ /* check gpp_size */
+ end = entry->gpe_start + gpp->gpp_size - 1;
+ if (gpp->gpp_size < 1 || end > table->gpt_last) {
+ gctl_error(req, "%d size '%jd'", EINVAL,
+ (intmax_t)gpp->gpp_size);
+ return (EINVAL);
+ }
+
+ LIST_FOREACH(pe, &table->gpt_entry, gpe_entry) {
+ if (pe->gpe_deleted || pe->gpe_internal || pe == entry)
+ continue;
+ if (end >= pe->gpe_start && end <= pe->gpe_end) {
+ gctl_error(req, "%d end '%jd'", ENOSPC,
+ (intmax_t)end);
+ return (ENOSPC);
+ }
+ if (entry->gpe_start < pe->gpe_start && end > pe->gpe_end) {
+ gctl_error(req, "%d size '%jd'", ENOSPC,
+ (intmax_t)gpp->gpp_size);
+ return (ENOSPC);
+ }
+ }
+
+ 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);
+ }
+
+ error = G_PART_RESIZE(table, entry, gpp);
+ if (error) {
+ gctl_error(req, "%d", error);
+ return (error);
+ }
+
+ if (!entry->gpe_created)
+ entry->gpe_modified = 1;
+
+ /* update mediasize of changed provider */
+ pp->mediasize = (entry->gpe_end - entry->gpe_start + 1) *
+ pp->sectorsize;
+
+ /* Provide feedback if so requested. */
+ if (gpp->gpp_parms & G_PART_PARM_OUTPUT) {
+ sb = sbuf_new_auto();
+ G_PART_FULLNAME(table, entry, sb, gp->name);
+ sbuf_cat(sb, " resized\n");
+ sbuf_finish(sb);
+ gctl_set_param(req, "output", sbuf_data(sb), sbuf_len(sb) + 1);
+ sbuf_delete(sb);
+ }
+ return (0);
+}
static int
g_part_ctl_setunset(struct gctl_req *req, struct g_part_parms *gpp,
@@ -1194,7 +1270,8 @@ g_part_ctlreq(struct gctl_req *req, stru
mparms |= G_PART_PARM_GEOM;
} else if (!strcmp(verb, "resize")) {
ctlreq = G_PART_CTL_RESIZE;
- mparms |= G_PART_PARM_GEOM | G_PART_PARM_INDEX;
+ mparms |= G_PART_PARM_GEOM | G_PART_PARM_INDEX |
+ G_PART_PARM_SIZE;
}
break;
case 's':
Modified: head/sys/geom/part/g_part_apm.c
==============================================================================
--- head/sys/geom/part/g_part_apm.c Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part_apm.c Fri Apr 23 03:11:39 2010 (r207094)
@@ -74,6 +74,8 @@ static int g_part_apm_read(struct g_part
static const char *g_part_apm_type(struct g_part_table *, struct g_part_entry *,
char *, size_t);
static int g_part_apm_write(struct g_part_table *, struct g_consumer *);
+static int g_part_apm_resize(struct g_part_table *, struct g_part_entry *,
+ struct g_part_parms *);
static kobj_method_t g_part_apm_methods[] = {
KOBJMETHOD(g_part_add, g_part_apm_add),
@@ -82,6 +84,7 @@ static kobj_method_t g_part_apm_methods[
KOBJMETHOD(g_part_dumpconf, g_part_apm_dumpconf),
KOBJMETHOD(g_part_dumpto, g_part_apm_dumpto),
KOBJMETHOD(g_part_modify, g_part_apm_modify),
+ KOBJMETHOD(g_part_resize, g_part_apm_resize),
KOBJMETHOD(g_part_name, g_part_apm_name),
KOBJMETHOD(g_part_probe, g_part_apm_probe),
KOBJMETHOD(g_part_read, g_part_apm_read),
@@ -318,6 +321,19 @@ g_part_apm_modify(struct g_part_table *b
return (0);
}
+static int
+g_part_apm_resize(struct g_part_table *basetable,
+ struct g_part_entry *baseentry, struct g_part_parms *gpp)
+{
+ struct g_part_apm_entry *entry;
+
+ entry = (struct g_part_apm_entry *)baseentry;
+ baseentry->gpe_end = baseentry->gpe_start + gpp->gpp_size - 1;
+ entry->ent.ent_size = gpp->gpp_size;
+
+ return (0);
+}
+
static const char *
g_part_apm_name(struct g_part_table *table, struct g_part_entry *baseentry,
char *buf, size_t bufsz)
Modified: head/sys/geom/part/g_part_bsd.c
==============================================================================
--- head/sys/geom/part/g_part_bsd.c Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part_bsd.c Fri Apr 23 03:11:39 2010 (r207094)
@@ -73,6 +73,8 @@ static int g_part_bsd_read(struct g_part
static const char *g_part_bsd_type(struct g_part_table *, struct g_part_entry *,
char *, size_t);
static int g_part_bsd_write(struct g_part_table *, struct g_consumer *);
+static int g_part_bsd_resize(struct g_part_table *, struct g_part_entry *,
+ struct g_part_parms *);
static kobj_method_t g_part_bsd_methods[] = {
KOBJMETHOD(g_part_add, g_part_bsd_add),
@@ -82,6 +84,7 @@ static kobj_method_t g_part_bsd_methods[
KOBJMETHOD(g_part_dumpconf, g_part_bsd_dumpconf),
KOBJMETHOD(g_part_dumpto, g_part_bsd_dumpto),
KOBJMETHOD(g_part_modify, g_part_bsd_modify),
+ KOBJMETHOD(g_part_resize, g_part_bsd_resize),
KOBJMETHOD(g_part_name, g_part_bsd_name),
KOBJMETHOD(g_part_probe, g_part_bsd_probe),
KOBJMETHOD(g_part_read, g_part_bsd_read),
@@ -288,6 +291,19 @@ g_part_bsd_modify(struct g_part_table *b
return (0);
}
+static int
+g_part_bsd_resize(struct g_part_table *basetable,
+ struct g_part_entry *baseentry, struct g_part_parms *gpp)
+{
+ struct g_part_bsd_entry *entry;
+
+ entry = (struct g_part_bsd_entry *)baseentry;
+ baseentry->gpe_end = baseentry->gpe_start + gpp->gpp_size - 1;
+ entry->part.p_size = gpp->gpp_size;
+
+ return (0);
+}
+
static const char *
g_part_bsd_name(struct g_part_table *table, struct g_part_entry *baseentry,
char *buf, size_t bufsz)
Modified: head/sys/geom/part/g_part_gpt.c
==============================================================================
--- head/sys/geom/part/g_part_gpt.c Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part_gpt.c Fri Apr 23 03:11:39 2010 (r207094)
@@ -103,6 +103,8 @@ static int g_part_gpt_read(struct g_part
static const char *g_part_gpt_type(struct g_part_table *, struct g_part_entry *,
char *, size_t);
static int g_part_gpt_write(struct g_part_table *, struct g_consumer *);
+static int g_part_gpt_resize(struct g_part_table *, struct g_part_entry *,
+ struct g_part_parms *);
static kobj_method_t g_part_gpt_methods[] = {
KOBJMETHOD(g_part_add, g_part_gpt_add),
@@ -112,6 +114,7 @@ static kobj_method_t g_part_gpt_methods[
KOBJMETHOD(g_part_dumpconf, g_part_gpt_dumpconf),
KOBJMETHOD(g_part_dumpto, g_part_gpt_dumpto),
KOBJMETHOD(g_part_modify, g_part_gpt_modify),
+ KOBJMETHOD(g_part_resize, g_part_gpt_resize),
KOBJMETHOD(g_part_name, g_part_gpt_name),
KOBJMETHOD(g_part_probe, g_part_gpt_probe),
KOBJMETHOD(g_part_read, g_part_gpt_read),
@@ -550,6 +553,19 @@ g_part_gpt_modify(struct g_part_table *b
return (0);
}
+static int
+g_part_gpt_resize(struct g_part_table *basetable,
+ struct g_part_entry *baseentry, struct g_part_parms *gpp)
+{
+ struct g_part_gpt_entry *entry;
+ entry = (struct g_part_gpt_entry *)baseentry;
+
+ baseentry->gpe_end = baseentry->gpe_start + gpp->gpp_size - 1;
+ entry->ent.ent_lba_end = baseentry->gpe_end;
+
+ return (0);
+}
+
static const char *
g_part_gpt_name(struct g_part_table *table, struct g_part_entry *baseentry,
char *buf, size_t bufsz)
Modified: head/sys/geom/part/g_part_if.m
==============================================================================
--- head/sys/geom/part/g_part_if.m Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part_if.m Fri Apr 23 03:11:39 2010 (r207094)
@@ -58,6 +58,13 @@ CODE {
{
return (0);
}
+
+ static int
+ default_resize(struct g_part_table *t __unused,
+ struct g_part_entry *e __unused, struct g_part_parms *p __unused)
+ {
+ return (ENOSYS);
+ }
};
# add() - scheme specific processing for the add verb.
@@ -114,6 +121,13 @@ METHOD int modify {
struct g_part_parms *gpp;
};
+# resize() - scheme specific processing for the resize verb.
+METHOD int resize {
+ struct g_part_table *table;
+ struct g_part_entry *entry;
+ struct g_part_parms *gpp;
+} DEFAULT default_resize;
+
# name() - return the name of the given partition entry.
# Typical names are "p1", "s0" or "c".
METHOD const char * name {
Modified: head/sys/geom/part/g_part_mbr.c
==============================================================================
--- head/sys/geom/part/g_part_mbr.c Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part_mbr.c Fri Apr 23 03:11:39 2010 (r207094)
@@ -76,6 +76,8 @@ static int g_part_mbr_setunset(struct g_
static const char *g_part_mbr_type(struct g_part_table *, struct g_part_entry *,
char *, size_t);
static int g_part_mbr_write(struct g_part_table *, struct g_consumer *);
+static int g_part_mbr_resize(struct g_part_table *, struct g_part_entry *,
+ struct g_part_parms *);
static kobj_method_t g_part_mbr_methods[] = {
KOBJMETHOD(g_part_add, g_part_mbr_add),
@@ -85,6 +87,7 @@ static kobj_method_t g_part_mbr_methods[
KOBJMETHOD(g_part_dumpconf, g_part_mbr_dumpconf),
KOBJMETHOD(g_part_dumpto, g_part_mbr_dumpto),
KOBJMETHOD(g_part_modify, g_part_mbr_modify),
+ KOBJMETHOD(g_part_resize, g_part_mbr_resize),
KOBJMETHOD(g_part_name, g_part_mbr_name),
KOBJMETHOD(g_part_probe, g_part_mbr_probe),
KOBJMETHOD(g_part_read, g_part_mbr_read),
@@ -302,6 +305,31 @@ g_part_mbr_modify(struct g_part_table *b
return (0);
}
+static int
+g_part_mbr_resize(struct g_part_table *basetable,
+ struct g_part_entry *baseentry, struct g_part_parms *gpp)
+{
+ struct g_part_mbr_entry *entry;
+ uint32_t size, sectors;
+
+ sectors = basetable->gpt_sectors;
+ size = gpp->gpp_size;
+
+ if (size < sectors)
+ return (EINVAL);
+ if (size % sectors)
+ size = size - (size % sectors);
+ if (size < sectors)
+ return (EINVAL);
+
+ entry = (struct g_part_mbr_entry *)baseentry;
+ baseentry->gpe_end = baseentry->gpe_start + size - 1;
+ entry->ent.dp_size = size;
+ mbr_set_chs(basetable, baseentry->gpe_end, &entry->ent.dp_ecyl,
+ &entry->ent.dp_ehd, &entry->ent.dp_esect);
+ return (0);
+}
+
static const char *
g_part_mbr_name(struct g_part_table *table, struct g_part_entry *baseentry,
char *buf, size_t bufsz)
Modified: head/sys/geom/part/g_part_pc98.c
==============================================================================
--- head/sys/geom/part/g_part_pc98.c Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part_pc98.c Fri Apr 23 03:11:39 2010 (r207094)
@@ -77,6 +77,8 @@ static int g_part_pc98_setunset(struct g
static const char *g_part_pc98_type(struct g_part_table *,
struct g_part_entry *, char *, size_t);
static int g_part_pc98_write(struct g_part_table *, struct g_consumer *);
+static int g_part_pc98_resize(struct g_part_table *, struct g_part_entry *,
+ struct g_part_parms *);
static kobj_method_t g_part_pc98_methods[] = {
KOBJMETHOD(g_part_add, g_part_pc98_add),
@@ -86,6 +88,7 @@ static kobj_method_t g_part_pc98_methods
KOBJMETHOD(g_part_dumpconf, g_part_pc98_dumpconf),
KOBJMETHOD(g_part_dumpto, g_part_pc98_dumpto),
KOBJMETHOD(g_part_modify, g_part_pc98_modify),
+ KOBJMETHOD(g_part_resize, g_part_pc98_resize),
KOBJMETHOD(g_part_name, g_part_pc98_name),
KOBJMETHOD(g_part_probe, g_part_pc98_probe),
KOBJMETHOD(g_part_read, g_part_pc98_read),
@@ -308,6 +311,31 @@ g_part_pc98_modify(struct g_part_table *
return (0);
}
+static int
+g_part_pc98_resize(struct g_part_table *basetable,
+ struct g_part_entry *baseentry, struct g_part_parms *gpp)
+{
+ struct g_part_pc98_entry *entry;
+ uint32_t size, cyl;
+
+ cyl = basetable->gpt_heads * basetable->gpt_sectors;
+ size = gpp->gpp_size;
+
+ if (size < cyl)
+ return (EINVAL);
+ if (size % cyl)
+ size = size - (size % cyl);
+ if (size < cyl)
+ return (EINVAL);
+
+ entry = (struct g_part_pc98_entry *)baseentry;
+ baseentry->gpe_end = baseentry->gpe_start + size - 1;
+ pc98_set_chs(basetable, baseentry->gpe_end, &entry->ent.dp_ecyl,
+ &entry->ent.dp_ehd, &entry->ent.dp_esect);
+
+ return (0);
+}
+
static const char *
g_part_pc98_name(struct g_part_table *table, struct g_part_entry *baseentry,
char *buf, size_t bufsz)
Modified: head/sys/geom/part/g_part_vtoc8.c
==============================================================================
--- head/sys/geom/part/g_part_vtoc8.c Fri Apr 23 02:31:28 2010 (r207093)
+++ head/sys/geom/part/g_part_vtoc8.c Fri Apr 23 03:11:39 2010 (r207094)
@@ -67,6 +67,8 @@ static int g_part_vtoc8_read(struct g_pa
static const char *g_part_vtoc8_type(struct g_part_table *, struct g_part_entry *,
char *, size_t);
static int g_part_vtoc8_write(struct g_part_table *, struct g_consumer *);
+static int g_part_vtoc8_resize(struct g_part_table *, struct g_part_entry *,
+ struct g_part_parms *);
static kobj_method_t g_part_vtoc8_methods[] = {
KOBJMETHOD(g_part_add, g_part_vtoc8_add),
@@ -75,6 +77,7 @@ static kobj_method_t g_part_vtoc8_method
KOBJMETHOD(g_part_dumpconf, g_part_vtoc8_dumpconf),
KOBJMETHOD(g_part_dumpto, g_part_vtoc8_dumpto),
KOBJMETHOD(g_part_modify, g_part_vtoc8_modify),
+ KOBJMETHOD(g_part_resize, g_part_vtoc8_resize),
KOBJMETHOD(g_part_name, g_part_vtoc8_name),
KOBJMETHOD(g_part_probe, g_part_vtoc8_probe),
KOBJMETHOD(g_part_read, g_part_vtoc8_read),
@@ -294,6 +297,26 @@ g_part_vtoc8_modify(struct g_part_table
return (0);
}
+static int
+g_part_vtoc8_resize(struct g_part_table *basetable,
+ struct g_part_entry *entry, struct g_part_parms *gpp)
+{
+ struct g_part_vtoc8_table *table;
+ uint64_t size;
+
+ table = (struct g_part_vtoc8_table *)basetable;
+ size = gpp->gpp_size;
+ if (size % table->secpercyl)
+ size = size - (size % table->secpercyl);
+ if (size < table->secpercyl)
+ return (EINVAL);
+
+ entry->gpe_end = entry->gpe_start + size - 1;
+ be32enc(&table->vtoc.map[entry->gpe_index - 1].nblks, size);
+
+ return (0);
+}
+
static const char *
g_part_vtoc8_name(struct g_part_table *table, struct g_part_entry *baseentry,
char *buf, size_t bufsz)
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