mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-13 10:02:38 +00:00
Code Issues Releases Activity

Forgot to commit those: introduce hardcoded provider functionality,

Browse Source 
which allow to store provider's name in the metadata and avoid
problems when few providers share the same last sector.
This commit is contained in:
Pawel Jakub Dawidek 2004-08-10 19:52:12 +00:00
parent 03e62bf373
commit c38d2f4eca
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=133447
2 changed files with 64 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
sbin/geom/class/mirror/geom_mirror.c
View File

@ -29,6 +29,7 @@ __FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <errno.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
@ -48,7 +49,7 @@ static char label_balance[] = "split", configure_balance[] = "none";
static intmax_t label_slice = 4096, configure_slice = -1;
static intmax_t insert_priority = 0;
static void mirror_main(struct gctl_req *req, unsigned f);
static void mirror_main(struct gctl_req *req, unsigned flags);
static void mirror_activate(struct gctl_req *req);
static void mirror_clear(struct gctl_req *req);
static void mirror_dump(struct gctl_req *req);
@ -61,6 +62,8 @@ struct g_command class_commands[] = {
{
{ 'a', "autosync", NULL, G_TYPE_NONE },
{ 'b', "balance", configure_balance, G_TYPE_STRING },
{ 'd', "dynamic", NULL, G_TYPE_NONE },
{ 'h', "hardcode", NULL, G_TYPE_NONE },
{ 'n', "noautosync", NULL, G_TYPE_NONE },
{ 's', "slice", &configure_slice, G_TYPE_NUMBER },
G_OPT_SENTINEL
@ -72,6 +75,7 @@ struct g_command class_commands[] = {
{ "label", G_FLAG_VERBOSE, mirror_main,
{
{ 'b', "balance", label_balance, G_TYPE_STRING },
{ 'h', "hardcode", NULL, G_TYPE_NONE },
{ 'n', "noautosync", NULL, G_TYPE_NONE },
{ 's', "slice", &label_slice, G_TYPE_NUMBER },
G_OPT_SENTINEL
@ -79,6 +83,7 @@ struct g_command class_commands[] = {
},
{ "insert", G_FLAG_VERBOSE, NULL,
{
{ 'h', "hardcode", NULL, G_TYPE_NONE },
{ 'i', "inactive", NULL, G_TYPE_NONE },
{ 'p', "priority", &insert_priority, G_TYPE_NUMBER },
G_OPT_SENTINEL
@ -102,27 +107,27 @@ void
usage(const char *comm)
{
fprintf(stderr,
"usage: %s label [-nv] [-b balance] [-s slice] name dev1 [dev2 [...]]\n"
" %s clear [-v] dev1 [dev2 [...]]\n"
" %s dump dev1 [dev2 [...]]\n"
" %s configure [-anv] [-b balance] [-s slice] name\n"
" %s rebuild [-v] name dev1 [dev2 [...]]\n"
" %s insert [-iv] [-p priority] name dev1 [dev2 [...]]\n"
" %s remove [-v] name dev1 [dev2 [...]]\n"
" %s activate [-v] name dev1 [dev2 [...]]\n"
" %s deactivate [-v] name dev1 [dev2 [...]]\n"
" %s forget dev1 [dev2 [...]]\n"
"usage: %s label [-hnv] [-b balance] [-s slice] name prov [prov [...]]\n"
" %s clear [-v] prov [prov [...]]\n"
" %s dump prov [prov [...]]\n"
" %s configure [-adhnv] [-b balance] [-s slice] name\n"
" %s rebuild [-v] name prov [prov [...]]\n"
" %s insert [-hiv] [-p priority] name prov [prov [...]]\n"
" %s remove [-v] name prov [prov [...]]\n"
" %s activate [-v] name prov [prov [...]]\n"
" %s deactivate [-v] name prov [prov [...]]\n"
" %s forget prov [prov [...]]\n"
" %s stop [-fv] name\n",
comm, comm, comm, comm, comm, comm, comm, comm, comm, comm, comm);
exit(EXIT_FAILURE);
}
static void
mirror_main(struct gctl_req *req, unsigned f)
mirror_main(struct gctl_req *req, unsigned flags)
{
const char *name;
if ((f & G_FLAG_VERBOSE) != 0)
if ((flags & G_FLAG_VERBOSE) != 0)
verbose = 1;
name = gctl_get_asciiparam(req, "verb");
@ -149,7 +154,7 @@ mirror_label(struct gctl_req *req)
u_char sector[512];
const char *str;
char param[16];
int *nargs, *noautosync, bal, error, i;
int *hardcode, *nargs, *noautosync, bal, error, i;
unsigned sectorsize;
off_t mediasize;
intmax_t *valp;
@ -202,6 +207,11 @@ mirror_label(struct gctl_req *req)
}
if (*noautosync)
md.md_mflags |= G_MIRROR_DEVICE_FLAG_NOAUTOSYNC;
hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode));
if (hardcode == NULL) {
gctl_error(req, "No '%s' argument.", "hardcode");
return;
}
/*
* Calculate sectorsize by finding least common multiple from
@ -258,6 +268,13 @@ mirror_label(struct gctl_req *req)
md.md_did = arc4random();
md.md_priority = i - 1;
if (!*hardcode)
bzero(md.md_provider, sizeof(md.md_provider));
else {
if (strncmp(str, _PATH_DEV, strlen(_PATH_DEV)) == 0)
str += strlen(_PATH_DEV);
strlcpy(md.md_provider, str, sizeof(md.md_provider));
}
mirror_metadata_encode(&md, sector);
error = g_metadata_store(str, sector, sizeof(sector));
if (error != 0) {

36
sys/geom/mirror/g_mirror_ctl.c
View File

@ -92,7 +92,7 @@ g_mirror_ctl_configure(struct gctl_req *req, struct g_class *mp)
intmax_t *slicep;
uint32_t slice;
uint8_t balance;
int *nargs, *autosync, *noautosync, do_sync = 0;
int *nargs, *autosync, *noautosync, *hardcode, *dynamic, do_sync = 0;
g_topology_assert();
nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
@ -139,8 +139,18 @@ g_mirror_ctl_configure(struct gctl_req *req, struct g_class *mp)
gctl_error(req, "No '%s' argument.", "noautosync");
return;
}
hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode));
if (hardcode == NULL) {
gctl_error(req, "No '%s' argument.", "hardcode");
return;
}
dynamic = gctl_get_paraml(req, "dynamic", sizeof(*dynamic));
if (dynamic == NULL) {
gctl_error(req, "No '%s' argument.", "dynamic");
return;
}
if (sc->sc_balance == balance && sc->sc_slice == slice && !*autosync &&
!*noautosync) {
!*noautosync && !*hardcode && !*dynamic) {
gctl_error(req, "Nothing has changed.");
return;
}
@ -149,6 +159,11 @@ g_mirror_ctl_configure(struct gctl_req *req, struct g_class *mp)
"noautosync");
return;
}
if (*hardcode && *dynamic) {
gctl_error(req, "'%s' and '%s' specified.", "hardcode",
"dynamic");
return;
}
sc->sc_balance = balance;
sc->sc_slice = slice;
if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_NOAUTOSYNC) != 0) {
@ -165,6 +180,10 @@ g_mirror_ctl_configure(struct gctl_req *req, struct g_class *mp)
if (disk->d_state == G_MIRROR_DISK_STATE_SYNCHRONIZING)
disk->d_flags &= ~G_MIRROR_DISK_FLAG_FORCE_SYNC;
}
if (*hardcode)
disk->d_flags |= G_MIRROR_DISK_FLAG_HARDCODED;
else if (*dynamic)
disk->d_flags &= ~G_MIRROR_DISK_FLAG_HARDCODED;
g_mirror_update_metadata(disk);
if (do_sync) {
if (disk->d_state == G_MIRROR_DISK_STATE_STALE) {
@ -257,7 +276,7 @@ g_mirror_ctl_insert(struct gctl_req *req, struct g_class *mp)
char param[16];
u_char *sector;
u_int i, n;
int error, *nargs, *inactive;
int error, *nargs, *hardcode, *inactive;
struct {
struct g_provider *provider;
struct g_consumer *consumer;
@ -283,6 +302,11 @@ g_mirror_ctl_insert(struct gctl_req *req, struct g_class *mp)
gctl_error(req, "No '%s' argument.", "inactive");
return;
}
hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode));
if (hardcode == NULL) {
gctl_error(req, "No '%s' argument.", "hardcode");
return;
}
name = gctl_get_asciiparam(req, "arg0");
if (name == NULL) {
gctl_error(req, "No 'arg%u' argument.", 0);
@ -356,6 +380,12 @@ g_mirror_ctl_insert(struct gctl_req *req, struct g_class *mp)
if (*inactive)
md.md_dflags |= G_MIRROR_DISK_FLAG_INACTIVE;
pp = disks[i].provider;
if (*hardcode) {
strlcpy(md.md_provider, pp->name,
sizeof(md.md_provider));
} else {
bzero(md.md_provider, sizeof(md.md_provider));
}
sector = g_malloc(pp->sectorsize, M_WAITOK);
mirror_metadata_encode(&md, sector);
error = g_write_data(disks[i].consumer,