/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
#include "mdadm.h"
#include "md_u.h"
#include "md_p.h"
+#include <ctype.h>
-int Create(char *mddev, int mdfd,
- int chunk, int level, int layout, int size, int raiddisks, int sparedisks,
+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 runstop, int verbose, int force, int assume_clean,
+ char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int autof)
{
/*
* Create a new raid array.
* abort.
*
* SET_ARRAY_INFO and ADD_NEW_DISK, and
- * if runstop==run, or raiddisks diskswere used,
+ * if runstop==run, or raiddisks disks were used,
* RUN_ARRAY
*/
- int minsize, maxsize;
+ int mdfd;
+ unsigned long long minsize=0, maxsize=0;
char *mindisc = NULL;
char *maxdisc = NULL;
- int i;
+ int dnum;
mddev_dev_t dv;
int fail=0, warn=0;
struct stat stb;
- int first_missing = MD_SB_DISKS*2;
+ int first_missing = subdevs * 2;
+ int second_missing = subdevs * 2;
int missing_disks = 0;
- int insert_point = MD_SB_DISKS*2; /* where to insert a missing drive */
+ int insert_point = subdevs * 2; /* where to insert a missing drive */
+ int total_slots;
+ int pass;
+ int vers;
+ int rv;
+ int bitmap_fd;
+ int have_container = 0;
+ int container_fd = -1;
+ int need_mdmon = 0;
+ unsigned long long bitmapsize;
+ struct mdinfo info, *infos;
+ int did_default = 0;
+ unsigned long safe_mode_delay = 0;
+ char chosen_name[1024];
+ struct map_ent *map = NULL;
- mdu_array_info_t array;
-
+ int major_num = BITMAP_MAJOR_HI;
- if (md_get_version(mdfd) < 9000) {
- fprintf(stderr, Name ": Create requires md driver verison 0.90.0 or later\n");
- return 1;
+ memset(&info, 0, sizeof(info));
+
+ if (level == UnSet) {
+ /* "ddf" and "imsm" metadata only supports one level - should possibly
+ * push this into metadata handler??
+ */
+ if (st && (st->ss == &super_ddf || st->ss == &super_imsm))
+ level = LEVEL_CONTAINER;
}
- if (level == -10) {
+
+ if (level == UnSet) {
fprintf(stderr,
Name ": a RAID level is needed to create an array.\n");
return 1;
}
- if (raiddisks < 1) {
+ if (raiddisks < 4 && level == 6) {
fprintf(stderr,
- Name ": a number of --raid-disks must be given to create an array\n");
+ Name ": at least 4 raid-devices needed for level 6\n");
+ return 1;
+ }
+ if (raiddisks > 256 && level == 6) {
+ fprintf(stderr,
+ Name ": no more than 256 raid-devices supported for level 6\n");
return 1;
}
if (raiddisks < 2 && level >= 4) {
fprintf(stderr,
- Name ": atleast 2 raid-disks needed for level 4 or 5\n");
+ Name ": at least 2 raid-devices needed for level 4 or 5\n");
+ return 1;
+ }
+ if (level <= 0 && sparedisks) {
+ fprintf(stderr,
+ Name ": This level does not support spare devices\n");
return 1;
}
- if (raiddisks+sparedisks > MD_SB_DISKS) {
+
+ if (subdevs == 1 && strcmp(devlist->devname, "missing") != 0) {
+ /* If given a single device, it might be a container, and we can
+ * extract a device list from there
+ */
+ mdu_array_info_t inf;
+ int fd;
+
+ memset(&inf, 0, sizeof(inf));
+ fd = open(devlist->devname, O_RDONLY);
+ if (fd >= 0 &&
+ ioctl(fd, GET_ARRAY_INFO, &inf) == 0 &&
+ inf.raid_disks == 0) {
+ /* yep, looks like a container */
+ if (st) {
+ rv = st->ss->load_super(st, fd,
+ devlist->devname);
+ if (rv == 0)
+ have_container = 1;
+ } else {
+ st = guess_super(fd);
+ if (st && !(rv = st->ss->
+ load_super(st, fd,
+ devlist->devname)))
+ have_container = 1;
+ else
+ st = NULL;
+ }
+ }
+ if (fd >= 0)
+ close(fd);
+ if (have_container) {
+ subdevs = 0;
+ devlist = NULL;
+ }
+ }
+ if (st && st->ss->external && sparedisks) {
fprintf(stderr,
- Name ": too many discs requested: %d+%d > %d\n",
- raiddisks, sparedisks, MD_SB_DISKS);
+ 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 disks (%d) than are in the array(%d)!\n", 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 (subdevs < raiddisks+sparedisks) {
+ if (!have_container && subdevs < raiddisks+sparedisks) {
fprintf(stderr, Name ": You haven't given enough devices (real or missing) to create this array\n");
return 1;
}
+ if (bitmap_file && level <= 0) {
+ fprintf(stderr, Name ": bitmaps not meaningful with level %s\n",
+ map_num(pers, level)?:"given");
+ return 1;
+ }
/* now set some defaults */
- if (layout == -1)
+ if (layout == UnSet)
switch(level) {
default: /* no layout */
layout = 0;
break;
+ case 10:
+ layout = 0x102; /* near=2, far=1 */
+ if (verbose > 0)
+ fprintf(stderr,
+ Name ": layout defaults to n1\n");
+ break;
case 5:
+ case 6:
layout = map_name(r5layout, "default");
- if (verbose)
+ if (verbose > 0)
fprintf(stderr,
Name ": layout defaults to %s\n", map_num(r5layout, layout));
break;
+ case LEVEL_FAULTY:
+ layout = map_name(faultylayout, "default");
+
+ if (verbose > 0)
+ fprintf(stderr,
+ Name ": layout defaults to %s\n", map_num(faultylayout, layout));
+ break;
}
- if (chunk == 0) {
- chunk = 64;
- if (verbose)
- fprintf(stderr, Name ": chunk size defaults to 64K\n");
+ if (level == 10)
+ /* check layout fits in array*/
+ if ((layout&255) * ((layout>>8)&255) > raiddisks) {
+ fprintf(stderr, Name ": that layout requires at least %d devices\n",
+ (layout&255) * ((layout>>8)&255));
+ return 1;
+ }
+
+ switch(level) {
+ case 4:
+ case 5:
+ case 10:
+ case 6:
+ case 0:
+ case LEVEL_LINEAR: /* linear */
+ if (chunk == 0) {
+ chunk = 64;
+ if (verbose > 0)
+ fprintf(stderr, Name ": chunk size defaults to 64K\n");
+ }
+ break;
+ case 1:
+ case LEVEL_FAULTY:
+ case LEVEL_MULTIPATH:
+ case LEVEL_CONTAINER:
+ if (chunk) {
+ chunk = 0;
+ if (verbose > 0)
+ fprintf(stderr, Name ": chunk size ignored for this level\n");
+ }
+ break;
+ default:
+ fprintf(stderr, Name ": unknown level %d\n", level);
+ return 1;
}
+ if (st && ! st->ss->validate_geometry(st, level, layout, raiddisks,
+ chunk, size, NULL, NULL, verbose>=0))
+ return 1;
+
/* now look at the subdevs */
- array.active_disks = 0;
- array.working_disks = 0;
- for (dv=devlist; dv; dv=dv->next) {
+ info.array.active_disks = 0;
+ info.array.working_disks = 0;
+ dnum = 0;
+ for (dv=devlist; dv; dv=dv->next, dnum++) {
char *dname = dv->devname;
- int dsize, freesize;
- int fd;
+ unsigned long long freesize;
if (strcasecmp(dname, "missing")==0) {
- if (first_missing > i)
- first_missing = i;
+ if (first_missing > dnum)
+ first_missing = dnum;
+ if (second_missing > dnum && dnum > first_missing)
+ second_missing = dnum;
missing_disks ++;
continue;
}
- array.working_disks++;
- if (i < raiddisks)
- array.active_disks++;
- fd = open(dname, O_RDONLY, 0);
- if (fd <0 ) {
- fprintf(stderr, Name ": Cannot open %s: %s\n",
- dname, strerror(errno));
- fail=1;
- continue;
+ info.array.working_disks++;
+ if (dnum < raiddisks)
+ info.array.active_disks++;
+ if (st == NULL) {
+ struct createinfo *ci = conf_get_create_info();
+ if (ci)
+ st = ci->supertype;
}
- if (ioctl(fd, BLKGETSIZE, &dsize)) {
- fprintf(stderr, Name ": Cannot get size of %s: %s\n",
- dname, strerror(errno));
- fail = 1;
- close(fd);
- continue;
+ if (st == NULL) {
+ /* Need to choose a default metadata, which is different
+ * depending on geometry of array.
+ */
+ int i;
+ char *name = "default";
+ for(i=0; !st && superlist[i]; i++) {
+ st = superlist[i]->match_metadata_desc(name);
+ if (st && !st->ss->validate_geometry
+ (st, level, layout, raiddisks,
+ chunk, size, dname, &freesize,
+ verbose > 0))
+ st = NULL;
+ }
+
+ if (!st) {
+ fprintf(stderr, Name ": device %s not suitable "
+ "for any style of array\n",
+ dname);
+ exit(2);
+ }
+ if (st->ss != &super0 ||
+ st->minor_version != 90)
+ did_default = 1;
+ } else {
+ if (!st->ss->validate_geometry(st, level, layout,
+ raiddisks,
+ chunk, size, dname,
+ &freesize,
+ verbose > 0)) {
+
+ fprintf(stderr,
+ Name ": %s is not suitable for "
+ "this array.\n",
+ dname);
+ fail = 1;
+ continue;
+ }
}
- if (dsize < MD_RESERVED_SECTORS*2) {
- fprintf(stderr, Name ": %s is too small: %dK\n",
- dname, dsize/2);
- fail = 1;
- close(fd);
- continue;
+
+ freesize /= 2; /* convert to K */
+ if (chunk) {
+ /* round to chunk size */
+ freesize = freesize & ~(chunk-1);
}
- freesize = MD_NEW_SIZE_SECTORS(dsize);
- freesize /= 2;
if (size && freesize < size) {
- fprintf(stderr, Name ": %s is smaller that given size."
- " %dK < %dK + superblock\n", dname, freesize, size);
+ fprintf(stderr, Name ": %s is smaller than given size."
+ " %lluK < %lluK + metadata\n",
+ dname, freesize, size);
fail = 1;
- close(fd);
continue;
}
if (maxdisc == NULL || (maxdisc && freesize > maxsize)) {
mindisc = dname;
minsize = freesize;
}
- warn |= check_ext2(fd, dname);
- warn |= check_reiser(fd, dname);
- warn |= check_raid(fd, dname);
- close(fd);
+ if (runstop != 1 || verbose >= 0) {
+ int fd = open(dname, O_RDONLY);
+ if (fd <0 ) {
+ fprintf(stderr, Name ": Cannot open %s: %s\n",
+ dname, strerror(errno));
+ fail=1;
+ continue;
+ }
+ warn |= check_ext2(fd, dname);
+ warn |= check_reiser(fd, dname);
+ warn |= check_raid(fd, dname);
+ close(fd);
+ }
}
if (fail) {
fprintf(stderr, Name ": create aborted\n");
return 1;
}
if (size == 0) {
- if (mindisc == NULL) {
+ if (mindisc == NULL && !have_container) {
fprintf(stderr, Name ": no size and no drives given - aborting create.\n");
return 1;
}
- size = minsize;
- if (verbose && level>0)
- fprintf(stderr, Name ": size set to %dK\n", size);
+ if (level > 0 || level == LEVEL_MULTIPATH
+ || level == LEVEL_FAULTY
+ || st->ss->external ) {
+ /* size is meaningful */
+ if (!st->ss->validate_geometry(st, level, layout,
+ raiddisks,
+ chunk, minsize,
+ NULL, NULL, 0)) {
+ fprintf(stderr, Name ": devices too large for RAID level %d\n", level);
+ return 1;
+ }
+ size = minsize;
+ if (verbose > 0)
+ fprintf(stderr, Name ": size set to %lluK\n", size);
+ }
}
- if (level >= 1 && ((maxsize-size)*100 > maxsize)) {
- fprintf(stderr, Name ": largest drive (%s) exceed size (%dK) by more than 1%%\n",
- maxdisc, size);
+ if (level > 0 && ((maxsize-size)*100 > maxsize)) {
+ if (runstop != 1 || verbose >= 0)
+ fprintf(stderr, Name ": largest drive (%s) exceed size (%lluK) by more than 1%%\n",
+ maxdisc, size);
warn = 1;
}
return 1;
}
} else {
- if (verbose)
+ if (verbose > 0)
fprintf(stderr, Name ": creation continuing despite oddities due to --run\n");
}
}
- /* If this is raid5, we want to configure the last active slot
+ /* If this is raid4/5, we want to configure the last active slot
* as missing, so that a reconstruct happens (faster than re-parity)
+ * FIX: Can we do this for raid6 as well?
+ */
+ if (st->ss->external == 0 &&
+ assume_clean==0 && force == 0 && first_missing >= raiddisks) {
+ switch ( level ) {
+ case 4:
+ case 5:
+ insert_point = raiddisks-1;
+ sparedisks++;
+ info.array.active_disks--;
+ missing_disks++;
+ break;
+ default:
+ break;
+ }
+ }
+ /* For raid6, if creating with 1 missing drive, make a good drive
+ * into a spare, else the create will fail
*/
- if (force == 0 && level == 5 && first_missing >= raiddisks) {
- insert_point = raiddisks-1;
- sparedisks++;
- array.active_disks--;
+ 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)
+ insert_point--;
+ sparedisks ++;
+ info.array.active_disks--;
missing_disks++;
}
-
+
+ if (level <= 0 && first_missing < subdevs * 2) {
+ fprintf(stderr,
+ Name ": This level does not support missing devices\n");
+ 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 */
- array.level = level;
- array.size = size;
- array.raid_disks = raiddisks;
+ info.array.level = level;
+ info.array.size = size;
+ info.array.raid_disks = raiddisks;
/* The kernel should *know* what md_minor we are dealing
* with, but it chooses to trust me instead. Sigh
*/
- array.md_minor = 0;
+ info.array.md_minor = 0;
if (fstat(mdfd, &stb)==0)
- array.md_minor = MINOR(stb.st_rdev);
- array.not_persistent = 0;
- if (level == 5 && (insert_point < raiddisks || first_missing < raiddisks))
- array.state = 1; /* clean, but one drive will be missing */
- else
- array.state = 0; /* not clean, but no errors */
+ info.array.md_minor = minor(stb.st_rdev);
+ info.array.not_persistent = 0;
+
+ if ( ( (level == 4 || level == 5) &&
+ (insert_point < raiddisks || first_missing < raiddisks) )
+ ||
+ ( level == 6 && (insert_point < raiddisks
+ || second_missing < raiddisks))
+ ||
+ ( level <= 0 )
+ ||
+ assume_clean
+ ) {
+ info.array.state = 1; /* clean, but one+ drive will be missing*/
+ info.resync_start = ~0ULL;
+ } else {
+ info.array.state = 0; /* not clean, but no errors */
+ info.resync_start = 0;
+ }
+ if (level == 10) {
+ /* for raid10, the bitmap size is the capacity of the array,
+ * which is array.size * raid_disks / ncopies;
+ * .. but convert to sectors.
+ */
+ int ncopies = ((layout>>8) & 255) * (layout & 255);
+ bitmapsize = (unsigned long long)size * raiddisks / ncopies * 2;
+/* printf("bms=%llu as=%d rd=%d nc=%d\n", bitmapsize, size, raiddisks, ncopies);*/
+ } else
+ bitmapsize = (unsigned long long)size * 2;
/* There is lots of redundancy in these disk counts,
* raid_disks is the most meaningful value
* So for now, we assume that all raid and spare
* devices will be given.
*/
- array.spare_disks=sparedisks;
- array.failed_disks=missing_disks;
- array.nr_disks = array.working_disks + array.failed_disks;
- array.layout = layout;
- array.chunk_size = chunk*1024;
-
- if (ioctl(mdfd, SET_ARRAY_INFO, &array)) {
- fprintf(stderr, Name ": SET_ARRAY_INFO failed for %s: %s\n",
+ info.array.spare_disks=sparedisks;
+ info.array.failed_disks=missing_disks;
+ info.array.nr_disks = info.array.working_disks
+ + info.array.failed_disks;
+ info.array.layout = layout;
+ info.array.chunk_size = chunk*1024;
+
+ if (name == NULL || *name == 0) {
+ /* base name on mddev */
+ /* /dev/md0 -> 0
+ * /dev/md_d0 -> d0
+ * /dev/md/1 -> 1
+ * /dev/md/d1 -> d1
+ * /dev/md/home -> home
+ * /dev/mdhome -> home
+ */
+ /* FIXME compare this with rules in create_mddev */
+ name = strrchr(mddev, '/');
+ if (name) {
+ name++;
+ if (strncmp(name, "md_d", 4)==0 &&
+ strlen(name) > 4 &&
+ isdigit(name[4]) &&
+ (name-mddev) == 5 /* /dev/ */)
+ name += 3;
+ else if (strncmp(name, "md", 2)==0 &&
+ strlen(name) > 2 &&
+ isdigit(name[2]) &&
+ (name-mddev) == 5 /* /dev/ */)
+ name += 2;
+ }
+ }
+ if (!st->ss->init_super(st, &info.array, size, name, homehost, uuid))
+ 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 (is_subarray(info.text_version)) {
+ int dnum = devname2devnum(info.text_version+1);
+ char *path;
+ int mdp = get_mdp_major();
+ struct mdinfo *mdi;
+ if (dnum > 0)
+ path = map_dev(MD_MAJOR, dnum, 1);
+ else
+ path = map_dev(mdp, (-1-dnum)<< 6, 1);
+
+ mdi = sysfs_read(-1, dnum, GET_VERSION);
+
+ fprintf(stderr, Name ": Creating array inside "
+ "%s container %s\n",
+ mdi?mdi->text_version:"managed", path);
+ sysfs_free(mdi);
+ } else
+ fprintf(stderr, Name ": Defaulting to version"
+ " %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
+ fprintf(stderr, Name ": Warning - bitmaps created on this kernel are not portable\n"
+ " between different architectured. Consider upgrading the Linux kernel.\n");
+#endif
+ }
+
+ if (bitmap_file && strcmp(bitmap_file, "internal")==0) {
+ if ((vers%100) < 2) {
+ fprintf(stderr, Name ": internal bitmaps not supported by this kernel.\n");
+ 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");
+ goto abort;
+ }
+ bitmap_file = NULL;
+ }
+
+
+ sysfs_init(&info, mdfd, 0);
+
+ 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;
+ }
+ 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 ": failed to set array info for %s: %s\n",
mddev, strerror(errno));
- return 1;
+ goto abort;
}
-
- for (i=0, dv = devlist ; dv ; dv=dv->next, i++) {
- int fd;
- struct stat stb;
- mdu_disk_info_t disk;
-
- disk.number = i;
- if (i >= insert_point)
- disk.number++;
- disk.raid_disk = disk.number;
- if (disk.raid_disk < raiddisks)
- disk.state = 6; /* active and in sync */
- else
- disk.state = 0;
- if (strcasecmp(dv->devname, "missing")==0) {
- disk.major = 0;
- disk.minor = 0;
- disk.state = 1; /* faulty */
- } else {
- fd = open(dv->devname, O_RDONLY, 0);
- if (fd < 0) {
- fprintf(stderr, Name ": failed to open %s after earlier success - aborting\n",
- dv->devname);
- return 1;
- }
- fstat(fd, &stb);
- disk.major = MAJOR(stb.st_rdev);
- disk.minor = MINOR(stb.st_rdev);
- close(fd);
+
+ if (bitmap_file) {
+ int uuid[4];
+
+ st->ss->uuid_from_super(st, uuid);
+ if (CreateBitmap(bitmap_file, force, (char*)uuid, bitmap_chunk,
+ delay, write_behind,
+ bitmapsize,
+ major_num)) {
+ goto abort;
}
- if (ioctl(mdfd, ADD_NEW_DISK, &disk)) {
- fprintf(stderr, Name ": ADD_NEW_DISK for %s failed: %s\n",
- dv->devname, strerror(errno));
- return 1;
+ bitmap_fd = open(bitmap_file, O_RDWR);
+ if (bitmap_fd < 0) {
+ fprintf(stderr, Name ": weird: %s cannot be openned\n",
+ bitmap_file);
+ 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));
+ goto abort;
}
}
- if (insert_point < MD_SB_DISKS) {
- mdu_disk_info_t disk;
- disk.number = insert_point;
- disk.raid_disk = disk.number;
- disk.state = 1; /* faulty */
- disk.major = disk.minor = 0;
- ioctl(mdfd,ADD_NEW_DISK, &disk);
+ infos = malloc(sizeof(*infos) * total_slots);
+
+ for (pass=1; pass <=2 ; pass++) {
+ mddev_dev_t moved_disk = NULL; /* the disk that was moved out of the insert point */
+
+ for (dnum=0, dv = devlist ; dv ;
+ dv=(dv->next)?(dv->next):moved_disk, dnum++) {
+ int fd;
+ struct stat stb;
+ struct mdinfo *inf = &infos[dnum];
+
+ if (dnum >= total_slots)
+ abort();
+ if (dnum == insert_point) {
+ moved_disk = dv;
+ }
+ if (dnum == insert_point ||
+ strcasecmp(dv->devname, "missing")==0)
+ continue;
+
+ switch(pass) {
+ case 1:
+ *inf = info;
+
+ inf->disk.number = dnum;
+ inf->disk.raid_disk = dnum;
+ if (inf->disk.raid_disk < raiddisks)
+ inf->disk.state = (1<<MD_DISK_ACTIVE) |
+ (1<<MD_DISK_SYNC);
+ else
+ inf->disk.state = 0;
+
+ if (dv->writemostly == 1)
+ inf->disk.state |= (1<<MD_DISK_WRITEMOSTLY);
+
+ if (st->ss->external && st->subarray[0])
+ fd = open(dv->devname, O_RDWR);
+ else
+ 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);
+ goto abort;
+ }
+ fstat(fd, &stb);
+ inf->disk.major = major(stb.st_rdev);
+ inf->disk.minor = minor(stb.st_rdev);
+
+ remove_partitions(fd);
+ if (st->ss->add_to_super(st, &inf->disk,
+ fd, dv->devname)) {
+ fprintf(stderr, Name ": failed to add %s\n",
+ dv->devname);
+ goto abort;
+ }
+ 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->disk.minor = minor(stb.st_rdev);
+ break;
+ case 2:
+ inf->errors = 0;
+ rv = 0;
+
+ rv = add_disk(mdfd, st, &info, inf);
+
+ if (rv) {
+ fprintf(stderr,
+ Name ": ADD_NEW_DISK for %s "
+ "failed: %s\n",
+ dv->devname, strerror(errno));
+ st->ss->free_super(st);
+ goto abort;
+ }
+ break;
+ }
+ if (dv == moved_disk && dnum != insert_point) break;
+ }
+ if (pass == 1) {
+ st->ss->write_init_super(st);
+ flush_metadata_updates(st);
+ }
}
+ free(infos);
+ st->ss->free_super(st);
- /* param is not actually used */
- if (runstop == 1 || subdevs >= raiddisks) {
- mdu_param_t param;
- if (ioctl(mdfd, RUN_ARRAY, ¶m)) {
- fprintf(stderr, Name ": RUN_ARRAY failed: %s\n",
- strerror(errno));
- return 1;
+ 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) {
+ if (st->ss->external) {
+ switch(level) {
+ case LEVEL_LINEAR:
+ case LEVEL_MULTIPATH:
+ case 0:
+ sysfs_set_str(&info, NULL, "array_state",
+ "active");
+ need_mdmon = 0;
+ break;
+ default:
+ 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);
+ goto abort;
+ }
+ }
+ if (verbose >= 0)
+ fprintf(stderr, Name ": array %s started.\n", mddev);
+ if (st->ss->external && st->subarray[0]) {
+ if (need_mdmon)
+ start_mdmon(st->container_dev);
+
+ ping_monitor(devnum2devname(st->container_dev));
+ close(container_fd);
}
- fprintf(stderr, Name ": array %s started.\n", mddev);
+ wait_for(chosen_name);
} else {
- fprintf(stderr, Name ": not starting array - not enough discs.\n");
+ fprintf(stderr, Name ": not starting array - not enough devices.\n");
}
+ close(mdfd);
return 0;
+
+ abort:
+ if (mdfd >= 0)
+ close(mdfd);
+ return 1;
}