#include "md_p.h"
#include <ctype.h>
-int Create(struct supertype *st, char *mddev, int mdfd,
+int Create(struct supertype *st, char *mddev,
int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks,
char *name, char *homehost, int *uuid,
int subdevs, mddev_dev_t devlist,
int runstop, int verbose, int force, int assume_clean,
- char *bitmap_file, int bitmap_chunk, int write_behind, int delay)
+ char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int autof)
{
/*
* Create a new raid array.
* if runstop==run, or raiddisks disks were used,
* RUN_ARRAY
*/
+ int mdfd;
unsigned long long minsize=0, maxsize=0;
char *mindisc = NULL;
char *maxdisc = NULL;
int rv;
int bitmap_fd;
int have_container = 0;
- int container_fd;
+ int container_fd = -1;
int need_mdmon = 0;
unsigned long long bitmapsize;
- struct mdinfo *sra;
struct mdinfo info, *infos;
int did_default = 0;
+ unsigned long safe_mode_delay = 0;
+ char chosen_name[1024];
+ struct map_ent *map = NULL;
int major_num = BITMAP_MAJOR_HI;
memset(&info, 0, sizeof(info));
- vers = md_get_version(mdfd);
- if (vers < 9000) {
- fprintf(stderr, Name ": Create requires md driver version 0.90.0 or later\n");
- return 1;
- } else {
- mdu_array_info_t inf;
- memset(&inf, 0, sizeof(inf));
- ioctl(mdfd, GET_ARRAY_INFO, &inf);
- if (inf.working_disks != 0) {
- fprintf(stderr, Name ": another array by this name"
- " is already running.\n");
- return 1;
- }
- }
if (level == UnSet) {
/* "ddf" and "imsm" metadata only supports one level - should possibly
* push this into metadata handler??
int fd;
memset(&inf, 0, sizeof(inf));
- fd = open(devlist->devname, O_RDONLY, 0);
+ fd = open(devlist->devname, O_RDONLY);
if (fd >= 0 &&
ioctl(fd, GET_ARRAY_INFO, &inf) == 0 &&
inf.raid_disks == 0) {
devlist = NULL;
}
}
+ if (st && st->ss->external && sparedisks) {
+ fprintf(stderr,
+ Name ": This metadata type does not support "
+ "spare disks are create time\n");
+ return 1;
+ }
if (subdevs > raiddisks+sparedisks) {
fprintf(stderr, Name ": You have listed more devices (%d) than are in the array(%d)!\n", subdevs, raiddisks+sparedisks);
return 1;
}
if (size && freesize < size) {
- fprintf(stderr, Name ": %s is smaller that given size."
+ fprintf(stderr, Name ": %s is smaller than given size."
" %lluK < %lluK + metadata\n",
dname, freesize, size);
fail = 1;
minsize = freesize;
}
if (runstop != 1 || verbose >= 0) {
- int fd = open(dname, O_RDONLY, 0);
+ int fd = open(dname, O_RDONLY);
if (fd <0 ) {
fprintf(stderr, Name ": Cannot open %s: %s\n",
dname, strerror(errno));
* as missing, so that a reconstruct happens (faster than re-parity)
* FIX: Can we do this for raid6 as well?
*/
- if (assume_clean==0 && force == 0 && first_missing >= raiddisks) {
+ if (st->ss->external == 0 &&
+ assume_clean==0 && force == 0 && first_missing >= raiddisks) {
switch ( level ) {
case 4:
case 5:
* into a spare, else the create will fail
*/
if (assume_clean == 0 && force == 0 && first_missing < raiddisks &&
+ st->ss->external == 0 &&
second_missing >= raiddisks && level == 6) {
insert_point = raiddisks - 1;
if (insert_point == first_missing)
return 1;
}
+ /* We need to create the device */
+ map_lock(&map);
+ mdfd = create_mddev(mddev, name, autof, LOCAL, chosen_name);
+ if (mdfd < 0)
+ return 1;
+ mddev = chosen_name;
+
+ vers = md_get_version(mdfd);
+ if (vers < 9000) {
+ fprintf(stderr, Name ": Create requires md driver version 0.90.0 or later\n");
+ goto abort;
+ } else {
+ mdu_array_info_t inf;
+ memset(&inf, 0, sizeof(inf));
+ ioctl(mdfd, GET_ARRAY_INFO, &inf);
+ if (inf.working_disks != 0) {
+ fprintf(stderr, Name ": another array by this name"
+ " is already running.\n");
+ goto abort;
+ }
+ }
+
/* Ok, lets try some ioctls */
info.array.level = level;
* /dev/md/home -> home
* /dev/mdhome -> home
*/
+ /* FIXME compare this with rules in create_mddev */
name = strrchr(mddev, '/');
if (name) {
name++;
}
}
if (!st->ss->init_super(st, &info.array, size, name, homehost, uuid))
- return 1;
+ goto abort;
total_slots = info.array.nr_disks;
+ sysfs_init(&info, mdfd, 0);
st->ss->getinfo_super(st, &info);
if (did_default && verbose >= 0) {
- if (info.text_version[0] == '/') {
+ if (is_subarray(info.text_version)) {
int dnum = devname2devnum(info.text_version+1);
char *path;
int mdp = get_mdp_major();
" %s metadata\n", info.text_version);
}
+ map_update(&map, fd2devnum(mdfd), info.text_version,
+ info.uuid, chosen_name);
+ map_unlock(&map);
+
if (bitmap_file && vers < 9003) {
major_num = BITMAP_MAJOR_HOSTENDIAN;
#ifdef __BIG_ENDIAN
if (bitmap_file && strcmp(bitmap_file, "internal")==0) {
if ((vers%100) < 2) {
fprintf(stderr, Name ": internal bitmaps not supported by this kernel.\n");
- return 1;
+ goto abort;
}
if (!st->ss->add_internal_bitmap(st, &bitmap_chunk,
delay, write_behind,
bitmapsize, 1, major_num)) {
fprintf(stderr, Name ": Given bitmap chunk size not supported.\n");
- return 1;
+ goto abort;
}
bitmap_file = NULL;
}
- sra = sysfs_read(mdfd, 0, 0);
+ sysfs_init(&info, mdfd, 0);
- if (st->ss->external) {
- char ver[100];
- strcat(strcpy(ver, "external:"),
- info.text_version);
- if (st->ss->external && st->subarray[0]) {
- /* member */
-
- /* When creating a member, we need to be careful
- * to negotiate with mdmon properly.
- * If it is already running, we cannot write to
- * the devices and must ask it to do that part.
- * If it isn't running, we write to the devices,
- * and then start it.
- * We hold an exclusive open on the container
- * device to make sure mdmon doesn't exit after
- * we checked that it is running.
- *
- * For now, fail if it is already running.
- */
- container_fd = open_dev_excl(st->container_dev);
- if (container_fd < 0) {
- fprintf(stderr, Name ": Cannot get exclusive "
- "open on container - weird.\n");
- return 1;
- }
- if (mdmon_running(st->container_dev)) {
- if (verbose)
- fprintf(stderr, Name ": reusing mdmon "
- "for %s.\n",
- devnum2devname(st->container_dev));
- st->update_tail = &st->updates;
- } else
- need_mdmon = 1;
- }
- if ((vers % 100) < 2 ||
- sra == NULL ||
- sysfs_set_str(sra, NULL, "metadata_version",
- ver) < 0) {
- fprintf(stderr, Name ": This kernel does not "
- "support external metadata.\n");
- return 1;
+ if (st->ss->external && st->subarray[0]) {
+ /* member */
+
+ /* When creating a member, we need to be careful
+ * to negotiate with mdmon properly.
+ * If it is already running, we cannot write to
+ * the devices and must ask it to do that part.
+ * If it isn't running, we write to the devices,
+ * and then start it.
+ * We hold an exclusive open on the container
+ * device to make sure mdmon doesn't exit after
+ * we checked that it is running.
+ *
+ * For now, fail if it is already running.
+ */
+ container_fd = open_dev_excl(st->container_dev);
+ if (container_fd < 0) {
+ fprintf(stderr, Name ": Cannot get exclusive "
+ "open on container - weird.\n");
+ goto abort;
}
- rv = sysfs_set_array(sra, &info);
- } else if ((vers % 100) >= 1) { /* can use different versions */
- mdu_array_info_t inf;
- memset(&inf, 0, sizeof(inf));
- inf.major_version = info.array.major_version;
- inf.minor_version = info.array.minor_version;
- rv = ioctl(mdfd, SET_ARRAY_INFO, &inf);
- } else
- rv = ioctl(mdfd, SET_ARRAY_INFO, NULL);
+ if (mdmon_running(st->container_dev)) {
+ if (verbose)
+ fprintf(stderr, Name ": reusing mdmon "
+ "for %s.\n",
+ devnum2devname(st->container_dev));
+ st->update_tail = &st->updates;
+ } else
+ need_mdmon = 1;
+ }
+ rv = set_array_info(mdfd, st, &info);
if (rv) {
- fprintf(stderr, Name ": SET_ARRAY_INFO failed for %s: %s\n",
+ fprintf(stderr, Name ": failed to set array info for %s: %s\n",
mddev, strerror(errno));
- return 1;
+ goto abort;
}
if (bitmap_file) {
delay, write_behind,
bitmapsize,
major_num)) {
- return 1;
+ goto abort;
}
bitmap_fd = open(bitmap_file, O_RDWR);
if (bitmap_fd < 0) {
fprintf(stderr, Name ": weird: %s cannot be openned\n",
bitmap_file);
- return 1;
+ goto abort;
}
if (ioctl(mdfd, SET_BITMAP_FILE, bitmap_fd) < 0) {
fprintf(stderr, Name ": Cannot set bitmap file for %s: %s\n",
mddev, strerror(errno));
- return 1;
+ goto abort;
}
}
else
inf->disk.state = 0;
- if (dv->writemostly)
+ if (dv->writemostly == 1)
inf->disk.state |= (1<<MD_DISK_WRITEMOSTLY);
if (st->ss->external && st->subarray[0])
- fd = open(dv->devname, O_RDWR, 0);
+ fd = open(dv->devname, O_RDWR);
else
- fd = open(dv->devname, O_RDWR|O_EXCL,0);
+ fd = open(dv->devname, O_RDWR|O_EXCL);
if (fd < 0) {
fprintf(stderr, Name ": failed to open %s "
"after earlier success - aborting\n",
dv->devname);
- return 1;
+ goto abort;
}
fstat(fd, &stb);
inf->disk.major = major(stb.st_rdev);
st->ss->add_to_super(st, &inf->disk,
fd, dv->devname);
st->ss->getinfo_super(st, inf);
+ safe_mode_delay = inf->safe_mode_delay;
/* getinfo_super might have lost these ... */
inf->disk.major = major(stb.st_rdev);
inf->errors = 0;
rv = 0;
- if (st->ss->external)
- rv = sysfs_add_disk(sra, inf);
- else
- rv = ioctl(mdfd, ADD_NEW_DISK,
- &inf->disk);
+ rv = add_disk(mdfd, st, &info, inf);
if (rv) {
fprintf(stderr,
"failed: %s\n",
dv->devname, strerror(errno));
st->ss->free_super(st);
- return 1;
+ goto abort;
}
break;
}
free(infos);
st->ss->free_super(st);
- /* param is not actually used */
- if (level == LEVEL_CONTAINER)
- /* No need to start */
+ if (level == LEVEL_CONTAINER) {
+ /* No need to start. But we should signal udev to
+ * create links */
+ sysfs_uevent(&info, "change");
;
- else if (runstop == 1 || subdevs >= raiddisks) {
+ } else if (runstop == 1 || subdevs >= raiddisks) {
if (st->ss->external) {
switch(level) {
case LEVEL_LINEAR:
case LEVEL_MULTIPATH:
case 0:
- sysfs_set_str(sra, NULL, "array_state",
+ sysfs_set_str(&info, NULL, "array_state",
"active");
need_mdmon = 0;
break;
default:
- sysfs_set_str(sra, NULL, "array_state",
+ sysfs_set_str(&info, NULL, "array_state",
"readonly");
break;
}
+ sysfs_set_safemode(&info, safe_mode_delay);
} else {
+ /* param is not actually used */
mdu_param_t param;
if (ioctl(mdfd, RUN_ARRAY, ¶m)) {
fprintf(stderr, Name ": RUN_ARRAY failed: %s\n",
strerror(errno));
Manage_runstop(mddev, mdfd, -1, 0);
- return 1;
+ goto abort;
}
}
if (verbose >= 0)
fprintf(stderr, Name ": array %s started.\n", mddev);
if (st->ss->external && st->subarray[0]) {
- if (need_mdmon && !env_no_mdmon()) {
- int dn = st->container_dev;
- int i;
- switch(fork()) {
- case 0:
- /* FIXME yuk. CLOSE_EXEC?? */
- for (i=3; i < 100; i++)
- close(i);
- execl("./mdmon", "mdmon",
- map_dev(dev2major(dn),
- dev2minor(dn),
- 1), NULL);
- exit(1);
- case -1: fprintf(stderr, Name ": cannot fork. "
- "Array remains readonly\n");
- return 1;
- default: ; /* parent - good */
- }
- } else
- signal_mdmon(st->container_dev);
- /* FIXME wait for mdmon to set array to read-auto */
- sleep(1);
+ if (need_mdmon)
+ start_mdmon(st->container_dev);
+
+ ping_monitor(devnum2devname(st->container_dev));
close(container_fd);
}
+ wait_for(chosen_name);
} else {
fprintf(stderr, Name ": not starting array - not enough devices.\n");
}
+ close(mdfd);
return 0;
+
+ abort:
+ if (mdfd >= 0)
+ close(mdfd);
+ return 1;
}
projects / thirdparty / mdadm.git / blobdiff