/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Email: <neilb@suse.de>
*/
-#include "mdadm.h"
+#include "mdadm.h"
#include "md_u.h"
#include "md_p.h"
#include <ctype.h>
{
int layout = UnSet;
- if (st && st->ss->default_layout)
- layout = st->ss->default_layout(level);
+ if (st && st->ss->default_geometry)
+ st->ss->default_geometry(st, &level, &layout, NULL);
if (layout == UnSet)
switch(level) {
case 10:
layout = 0x102; /* near=2, far=1 */
if (verbose > 0)
- fprintf(stderr,
- Name ": layout defaults to n1\n");
+ pr_err("layout defaults to n2\n");
break;
case 5:
case 6:
layout = map_name(r5layout, "default");
if (verbose > 0)
- fprintf(stderr,
- Name ": layout defaults to %s\n", map_num(r5layout, layout));
+ pr_err("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));
+ pr_err("layout defaults to %s\n", map_num(faultylayout, layout));
break;
}
return layout;
}
-
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, int autof)
+ char *name, int *uuid,
+ int subdevs, struct mddev_dev *devlist,
+ struct shape *s,
+ struct context *c, unsigned long long data_offset)
{
/*
* Create a new raid array.
* RUN_ARRAY
*/
int mdfd;
- unsigned long long minsize=0, maxsize=0;
+ unsigned long long minsize = 0, maxsize = 0;
char *mindisc = NULL;
char *maxdisc = NULL;
- int dnum;
- mddev_dev_t dv;
- int fail=0, warn=0;
- struct stat stb;
+ int dnum, raid_disk_num;
+ struct mddev_dev *dv;
+ dev_t rdev;
+ int fail = 0, warn = 0;
int first_missing = subdevs * 2;
int second_missing = subdevs * 2;
int missing_disks = 0;
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;
struct mdinfo info, *infos;
int did_default = 0;
int do_default_layout = 0;
+ int do_default_chunk = 0;
unsigned long safe_mode_delay = 0;
char chosen_name[1024];
struct map_ent *map = NULL;
unsigned long long newsize;
+ mdu_array_info_t inf;
int major_num = BITMAP_MAJOR_HI;
-
- 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 (s->bitmap_file && strcmp(s->bitmap_file, "clustered") == 0) {
+ major_num = BITMAP_MAJOR_CLUSTERED;
+ if (c->nodes <= 1) {
+ pr_err("At least 2 nodes are needed for cluster-md\n");
+ return 1;
+ }
}
- if (level == UnSet) {
- fprintf(stderr,
- Name ": a RAID level is needed to create an array.\n");
+ memset(&info, 0, sizeof(info));
+ if (s->level == UnSet && st && st->ss->default_geometry)
+ st->ss->default_geometry(st, &s->level, NULL, NULL);
+ if (s->level == UnSet) {
+ pr_err("a RAID level is needed to create an array.\n");
return 1;
}
- if (raiddisks < 4 && level == 6) {
- fprintf(stderr,
- Name ": at least 4 raid-devices needed for level 6\n");
+ if (s->raiddisks < 4 && s->level == 6) {
+ pr_err("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");
+ if (s->raiddisks > 256 && s->level == 6) {
+ pr_err("no more than 256 raid-devices supported for level 6\n");
return 1;
}
- if (raiddisks < 2 && level >= 4) {
- fprintf(stderr,
- Name ": at least 2 raid-devices needed for level 4 or 5\n");
+ if (s->raiddisks < 2 && s->level >= 4) {
+ pr_err("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");
+ if (s->level <= 0 && s->sparedisks) {
+ pr_err("This level does not support spare devices\n");
return 1;
}
/* 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) {
+ md_get_array_info(fd, &inf) == 0 && inf.raid_disks == 0) {
/* yep, looks like a container */
if (st) {
- rv = st->ss->load_super(st, fd,
- devlist->devname);
+ rv = st->ss->load_container(st, fd,
+ devlist->devname);
if (rv == 0)
have_container = 1;
} else {
- st = guess_super(fd);
+ st = super_by_fd(fd, NULL);
if (st && !(rv = st->ss->
- load_super(st, fd,
- devlist->devname)))
+ load_container(st, fd,
+ devlist->devname)))
have_container = 1;
else
st = NULL;
}
if (have_container) {
- subdevs = raiddisks;
+ subdevs = s->raiddisks;
first_missing = subdevs * 2;
second_missing = subdevs * 2;
insert_point = subdevs * 2;
if (fd >= 0)
close(fd);
}
- if (st && st->ss->external && sparedisks) {
- fprintf(stderr,
- Name ": This metadata type does not support "
- "spare disks at create time\n");
+ if (st && st->ss->external && s->sparedisks) {
+ pr_err("This metadata type does not support spare disks at 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);
+ if (subdevs > s->raiddisks+s->sparedisks+s->journaldisks) {
+ pr_err("You have listed more devices (%d) than are in the array(%d)!\n", subdevs, s->raiddisks+s->sparedisks);
return 1;
}
- if (!have_container && subdevs < raiddisks+sparedisks) {
- fprintf(stderr, Name ": You haven't given enough devices (real or missing) to create this array\n");
+ if (!have_container && subdevs < s->raiddisks+s->sparedisks+s->journaldisks) {
+ pr_err("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");
+ if (s->bitmap_file && s->level <= 0) {
+ pr_err("bitmaps not meaningful with level %s\n",
+ map_num(pers, s->level)?:"given");
return 1;
}
/* now set some defaults */
-
- if (layout == UnSet) {
+ if (s->layout == UnSet) {
do_default_layout = 1;
- layout = default_layout(st, level, verbose);
+ s->layout = default_layout(st, s->level, c->verbose);
}
- if (level == 10)
+ if (s->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));
+ if ((s->layout&255) * ((s->layout>>8)&255) > s->raiddisks) {
+ pr_err("that layout requires at least %d devices\n",
+ (s->layout&255) * ((s->layout>>8)&255));
return 1;
}
- switch(level) {
+ switch(s->level) {
case 4:
case 5:
case 10:
case 6:
case 0:
- if (chunk == 0) {
- if (st && st->ss->default_chunk)
- chunk = st->ss->default_chunk(st);
-
- chunk = chunk ? : 512;
-
- if (verbose > 0)
- fprintf(stderr, Name ": chunk size defaults to %dK\n", chunk);
+ if (s->chunk == 0 || s->chunk == UnSet) {
+ s->chunk = UnSet;
+ do_default_chunk = 1;
+ /* chunk will be set later */
}
break;
case LEVEL_LINEAR:
/* a chunksize of zero 0s perfectly valid (and preferred) since 2.6.16 */
- if (get_linux_version() < 2006016 && chunk == 0) {
- chunk = 64;
- if (verbose > 0)
- fprintf(stderr, Name ": chunk size defaults to 64K\n");
+ if (get_linux_version() < 2006016 && s->chunk == 0) {
+ s->chunk = 64;
+ if (c->verbose > 0)
+ pr_err("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");
+ if (s->chunk) {
+ s->chunk = 0;
+ if (c->verbose > 0)
+ pr_err("chunk size ignored for this level\n");
}
break;
default:
- fprintf(stderr, Name ": unknown level %d\n", level);
+ pr_err("unknown level %d\n", s->level);
return 1;
}
-
- if (size && chunk)
- size &= ~(unsigned long long)(chunk - 1);
- newsize = size * 2;
- if (st && ! st->ss->validate_geometry(st, level, layout, raiddisks,
- chunk, size*2, NULL, &newsize, verbose>=0))
+ if (s->size == MAX_SIZE)
+ /* use '0' to mean 'max' now... */
+ s->size = 0;
+ if (s->size && s->chunk && s->chunk != UnSet)
+ s->size &= ~(unsigned long long)(s->chunk - 1);
+ newsize = s->size * 2;
+ if (st && ! st->ss->validate_geometry(st, s->level, s->layout, s->raiddisks,
+ &s->chunk, s->size*2,
+ data_offset, NULL,
+ &newsize, s->consistency_policy,
+ c->verbose >= 0))
return 1;
- if (size == 0) {
- size = newsize / 2;
- if (size && verbose > 0)
- fprintf(stderr, Name ": setting size to %lluK\n",
- (unsigned long long)size);
+
+ if (s->chunk && s->chunk != UnSet) {
+ newsize &= ~(unsigned long long)(s->chunk*2 - 1);
+ if (do_default_chunk) {
+ /* default chunk was just set */
+ if (c->verbose > 0)
+ pr_err("chunk size defaults to %dK\n", s->chunk);
+ s->size &= ~(unsigned long long)(s->chunk - 1);
+ do_default_chunk = 0;
+ }
+ }
+
+ if (s->size == 0) {
+ s->size = newsize / 2;
+ if (s->level == 1)
+ /* If this is ever reshaped to RAID5, we will
+ * need a chunksize. So round it off a bit
+ * now just to be safe
+ */
+ s->size &= ~(64ULL-1);
+
+ if (s->size && c->verbose > 0)
+ pr_err("setting size to %lluK\n", s->size);
}
/* now look at the subdevs */
info.array.active_disks = 0;
info.array.working_disks = 0;
dnum = 0;
+ for (dv = devlist; dv; dv = dv->next)
+ if (data_offset == VARIABLE_OFFSET)
+ dv->data_offset = INVALID_SECTORS;
+ else
+ dv->data_offset = data_offset;
+
for (dv=devlist; dv && !have_container; dv=dv->next, dnum++) {
char *dname = dv->devname;
unsigned long long freesize;
- if (strcasecmp(dname, "missing")==0) {
+ int dfd;
+ char *doff;
+
+ if (strcasecmp(dname, "missing") == 0) {
if (first_missing > dnum)
first_missing = dnum;
if (second_missing > dnum && dnum > first_missing)
missing_disks ++;
continue;
}
+ if (data_offset == VARIABLE_OFFSET) {
+ doff = strchr(dname, ':');
+ if (doff) {
+ *doff++ = 0;
+ dv->data_offset = parse_size(doff);
+ } else
+ dv->data_offset = INVALID_SECTORS;
+ } else
+ dv->data_offset = data_offset;
+
+ dfd = open(dname, O_RDONLY);
+ if (dfd < 0) {
+ pr_err("cannot open %s: %s\n",
+ dname, strerror(errno));
+ exit(2);
+ }
+ if (!fstat_is_blkdev(dfd, dname, NULL)) {
+ close(dfd);
+ exit(2);
+ }
+ close(dfd);
info.array.working_disks++;
- if (dnum < raiddisks)
+ if (dnum < s->raiddisks && dv->disposition != 'j')
info.array.active_disks++;
if (st == NULL) {
struct createinfo *ci = conf_get_create_info();
*/
int i;
char *name = "default";
- for(i=0; !st && superlist[i]; i++) {
+ for(i = 0; !st && superlist[i]; i++) {
st = superlist[i]->match_metadata_desc(name);
+ if (!st)
+ continue;
if (do_default_layout)
- layout = default_layout(st, level, verbose);
- if (st && !st->ss->validate_geometry
- (st, level, layout, raiddisks,
- chunk, size*2, dname, &freesize,
- verbose > 0))
+ s->layout = default_layout(st, s->level, c->verbose);
+ switch (st->ss->validate_geometry(
+ st, s->level, s->layout, s->raiddisks,
+ &s->chunk, s->size*2,
+ dv->data_offset, dname,
+ &freesize, s->consistency_policy,
+ c->verbose > 0)) {
+ case -1: /* Not valid, message printed, and not
+ * worth checking any further */
+ exit(2);
+ break;
+ case 0: /* Geometry not valid */
+ free(st);
st = NULL;
+ s->chunk = do_default_chunk ? UnSet : s->chunk;
+ break;
+ case 1: /* All happy */
+ break;
+ }
}
if (!st) {
- fprintf(stderr, Name ": device %s not suitable "
- "for any style of array\n",
+ int dfd = open(dname, O_RDONLY|O_EXCL);
+ if (dfd < 0) {
+ pr_err("cannot open %s: %s\n",
+ dname, strerror(errno));
+ exit(2);
+ }
+ pr_err("device %s not suitable for any style of array\n",
dname);
exit(2);
}
did_default = 1;
} else {
if (do_default_layout)
- layout = default_layout(st, level, verbose);
- if (!st->ss->validate_geometry(st, level, layout,
- raiddisks,
- chunk, size*2, dname,
- &freesize,
- verbose >= 0)) {
-
- fprintf(stderr,
- Name ": %s is not suitable for "
- "this array.\n",
- dname);
+ s->layout = default_layout(st, s->level, 0);
+ if (!st->ss->validate_geometry(st, s->level, s->layout,
+ s->raiddisks,
+ &s->chunk, s->size*2,
+ dv->data_offset,
+ dname, &freesize,
+ s->consistency_policy,
+ c->verbose >= 0)) {
+
+ pr_err("%s is not suitable for this array.\n",
+ dname);
fail = 1;
continue;
}
}
+ if (dv->disposition == 'j')
+ goto skip_size_check; /* skip write journal for size check */
+
freesize /= 2; /* convert to K */
- if (chunk) {
+ if (s->chunk && s->chunk != UnSet) {
/* round to chunk size */
- freesize = freesize & ~(chunk-1);
+ freesize = freesize & ~(s->chunk-1);
+ if (do_default_chunk) {
+ /* default chunk was just set */
+ if (c->verbose > 0)
+ pr_err("chunk size defaults to %dK\n", s->chunk);
+ s->size &= ~(unsigned long long)(s->chunk - 1);
+ do_default_chunk = 0;
+ }
+ }
+ if (!freesize) {
+ pr_err("no free space left on %s\n", dname);
+ fail = 1;
+ continue;
}
- if (size && freesize < size) {
- fprintf(stderr, Name ": %s is smaller than given size."
- " %lluK < %lluK + metadata\n",
- dname, freesize, size);
+ if (s->size && freesize < s->size) {
+ pr_err("%s is smaller than given size. %lluK < %lluK + metadata\n",
+ dname, freesize, s->size);
fail = 1;
continue;
}
mindisc = dname;
minsize = freesize;
}
- if (runstop != 1 || verbose >= 0) {
+ skip_size_check:
+ if (c->runstop != 1 || c->verbose >= 0) {
int fd = open(dname, O_RDONLY);
- if (fd <0 ) {
- fprintf(stderr, Name ": Cannot open %s: %s\n",
+ if (fd < 0) {
+ pr_err("Cannot open %s: %s\n",
dname, strerror(errno));
- fail=1;
+ fail = 1;
continue;
}
warn |= check_ext2(fd, dname);
if (strcmp(st->ss->name, "1.x") == 0 &&
st->minor_version >= 1)
/* metadata at front */
- warn |= check_partitions(fd, dname, 0);
- else if (level == 1 || level == LEVEL_CONTAINER)
+ warn |= check_partitions(fd, dname, 0, 0);
+ else if (s->level == 1 || s->level == LEVEL_CONTAINER ||
+ (s->level == 0 && s->raiddisks == 1))
/* partitions could be meaningful */
- warn |= check_partitions(fd, dname, freesize*2);
+ warn |= check_partitions(fd, dname, freesize*2, s->size*2);
else
/* partitions cannot be meaningful */
- warn |= check_partitions(fd, dname, 0);
+ warn |= check_partitions(fd, dname, 0, 0);
if (strcmp(st->ss->name, "1.x") == 0 &&
st->minor_version >= 1 &&
did_default &&
- level == 1 &&
+ s->level == 1 &&
(warn & 1024) == 0) {
warn |= 1024;
- fprintf(stderr, Name ": Note: this array has metadata at the start and\n"
+ pr_err("Note: this array has metadata at the start and\n"
" may not be suitable as a boot device. If you plan to\n"
" store '/boot' on this device please ensure that\n"
" your boot-loader understands md/v1.x metadata, or use\n"
close(fd);
}
}
+ if (missing_disks == dnum) {
+ pr_err("Subdevs can't be all missing\n");
+ return 1;
+ }
+ if (s->raiddisks + s->sparedisks > st->max_devs) {
+ pr_err("Too many devices: %s metadata only supports %d\n",
+ st->ss->name, st->max_devs);
+ return 1;
+ }
if (have_container)
- info.array.working_disks = raiddisks;
+ info.array.working_disks = s->raiddisks;
if (fail) {
- fprintf(stderr, Name ": create aborted\n");
+ pr_err("create aborted\n");
return 1;
}
- if (size == 0) {
+ if (s->size == 0) {
if (mindisc == NULL && !have_container) {
- fprintf(stderr, Name ": no size and no drives given - aborting create.\n");
+ pr_err("no size and no drives given - aborting create.\n");
return 1;
}
- if (level > 0 || level == LEVEL_MULTIPATH
- || level == LEVEL_FAULTY
- || st->ss->external ) {
+ if (s->level > 0 || s->level == LEVEL_MULTIPATH ||
+ s->level == LEVEL_FAULTY || st->ss->external) {
/* size is meaningful */
- if (!st->ss->validate_geometry(st, level, layout,
- raiddisks,
- chunk, minsize*2,
- NULL, NULL, 0)) {
- fprintf(stderr, Name ": devices too large for RAID level %d\n", level);
+ if (!st->ss->validate_geometry(st, s->level, s->layout,
+ s->raiddisks,
+ &s->chunk, minsize*2,
+ data_offset,
+ NULL, NULL,
+ s->consistency_policy, 0)) {
+ pr_err("devices too large for RAID level %d\n", s->level);
return 1;
}
- size = minsize;
- if (verbose > 0)
- fprintf(stderr, Name ": size set to %lluK\n", size);
+ s->size = minsize;
+ if (s->level == 1)
+ /* If this is ever reshaped to RAID5, we will
+ * need a chunksize. So round it off a bit
+ * now just to be safe
+ */
+ s->size &= ~(64ULL-1);
+ if (c->verbose > 0)
+ pr_err("size set to %lluK\n", s->size);
}
}
- if (!have_container && level > 0 && ((maxsize-size)*100 > maxsize)) {
- if (runstop != 1 || verbose >= 0)
- fprintf(stderr, Name ": largest drive (%s) exceeds size (%lluK) by more than 1%%\n",
- maxdisc, size);
+
+ if (!s->bitmap_file &&
+ s->level >= 1 &&
+ st->ss->add_internal_bitmap &&
+ (s->consistency_policy != CONSISTENCY_POLICY_RESYNC &&
+ s->consistency_policy != CONSISTENCY_POLICY_PPL) &&
+ (s->write_behind || s->size > 100*1024*1024ULL)) {
+ if (c->verbose > 0)
+ pr_err("automatically enabling write-intent bitmap on large array\n");
+ s->bitmap_file = "internal";
+ }
+ if (s->bitmap_file && strcmp(s->bitmap_file, "none") == 0)
+ s->bitmap_file = NULL;
+
+ if (s->consistency_policy == CONSISTENCY_POLICY_PPL &&
+ !st->ss->write_init_ppl) {
+ pr_err("%s metadata does not support PPL\n", st->ss->name);
+ return 1;
+ }
+
+ if (!have_container && s->level > 0 && ((maxsize-s->size)*100 > maxsize)) {
+ if (c->runstop != 1 || c->verbose >= 0)
+ pr_err("largest drive (%s) exceeds size (%lluK) by more than 1%%\n",
+ maxdisc, s->size);
warn = 1;
}
- if (st->ss->detail_platform && st->ss->detail_platform(0, 1) != 0) {
- if (runstop != 1 || verbose >= 0)
- fprintf(stderr, Name ": %s unable to enumerate platform support\n"
+ if (st->ss->detail_platform && st->ss->detail_platform(0, 1, NULL) != 0) {
+ if (c->runstop != 1 || c->verbose >= 0)
+ pr_err("%s unable to enumerate platform support\n"
" array may not be compatible with hardware/firmware\n",
st->ss->name);
warn = 1;
}
+ st->nodes = c->nodes;
+ st->cluster_name = c->homecluster;
if (warn) {
- if (runstop!= 1) {
+ if (c->runstop!= 1) {
if (!ask("Continue creating array? ")) {
- fprintf(stderr, Name ": create aborted.\n");
+ pr_err("create aborted.\n");
return 1;
}
} else {
- if (verbose > 0)
- fprintf(stderr, Name ": creation continuing despite oddities due to --run\n");
+ if (c->verbose > 0)
+ pr_err("creation continuing despite oddities due to --run\n");
}
}
* 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 ) {
+ if (st->ss->external == 0 && s->assume_clean == 0 &&
+ c->force == 0 && first_missing >= s->raiddisks) {
+ switch (s->level) {
case 4:
case 5:
- insert_point = raiddisks-1;
- sparedisks++;
+ insert_point = s->raiddisks-1;
+ s->sparedisks++;
info.array.active_disks--;
missing_disks++;
break;
/* For raid6, if creating with 1 missing drive, make a good drive
* into a spare, else the create will fail
*/
- if (assume_clean == 0 && force == 0 && first_missing < raiddisks &&
+ if (s->assume_clean == 0 && c->force == 0 && first_missing < s->raiddisks &&
st->ss->external == 0 &&
- second_missing >= raiddisks && level == 6) {
- insert_point = raiddisks - 1;
+ second_missing >= s->raiddisks && s->level == 6) {
+ insert_point = s->raiddisks - 1;
if (insert_point == first_missing)
insert_point--;
- sparedisks ++;
+ s->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");
+ if (s->level <= 0 && first_missing < subdevs * 2) {
+ pr_err("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)
+ mdfd = create_mddev(mddev, name, c->autof, LOCAL, chosen_name, 1);
+ if (mdfd < 0) {
+ map_unlock(&map);
+ return 1;
+ }
+ /* verify if chosen_name is not in use,
+ * it could be in conflict with already existing device
+ * e.g. container, array
+ */
+ if (strncmp(chosen_name, "/dev/md/", 8) == 0 &&
+ map_by_name(&map, chosen_name+8) != NULL) {
+ pr_err("Array name %s is in use already.\n",
+ chosen_name);
+ close(mdfd);
+ map_unlock(&map);
+ udev_unblock();
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;
- }
+ memset(&inf, 0, sizeof(inf));
+ md_get_array_info(mdfd, &inf);
+ if (inf.working_disks != 0) {
+ pr_err("another array by this name is already running.\n");
+ goto abort_locked;
}
/* Ok, lets try some ioctls */
- info.array.level = level;
- info.array.size = size;
- info.array.raid_disks = raiddisks;
+ info.array.level = s->level;
+ info.array.size = s->size;
+ info.array.raid_disks = s->raiddisks;
/* The kernel should *know* what md_minor we are dealing
* with, but it chooses to trust me instead. Sigh
*/
info.array.md_minor = 0;
- if (fstat(mdfd, &stb)==0)
- info.array.md_minor = minor(stb.st_rdev);
+ if (fstat_is_blkdev(mdfd, mddev, &rdev))
+ info.array.md_minor = minor(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
- ) {
+ if (((s->level == 4 || s->level == 5) &&
+ (insert_point < s->raiddisks || first_missing < s->raiddisks)) ||
+ (s->level == 6 && (insert_point < s->raiddisks ||
+ second_missing < s->raiddisks)) ||
+ (s->level <= 0) || s->assume_clean) {
info.array.state = 1; /* clean, but one+ drive will be missing*/
info.resync_start = MaxSector;
} else {
info.array.state = 0; /* not clean, but no errors */
info.resync_start = 0;
}
- if (level == 10) {
+ if (s->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);*/
+ int ncopies = ((s->layout>>8) & 255) * (s->layout & 255);
+ bitmapsize = s->size * s->raiddisks / ncopies * 2;
+/* printf("bms=%llu as=%d rd=%d nc=%d\n", bitmapsize, s->size, s->raiddisks, ncopies);*/
} else
- bitmapsize = (unsigned long long)size * 2;
+ bitmapsize = s->size * 2;
/* There is lots of redundancy in these disk counts,
* raid_disks is the most meaningful value
* including spares
* failed_disks is the number of disks marked failed
*
- * Ideally, the kernel would keep these (except raid_disks)
+ * Ideally, the kernel would keep these (except raid_disks)
* up-to-date as we ADD_NEW_DISK, but it doesn't (yet).
* So for now, we assume that all raid and spare
* devices will be given.
*/
- info.array.spare_disks=sparedisks;
+ info.array.spare_disks=s->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;
+ info.array.layout = s->layout;
+ info.array.chunk_size = s->chunk*1024;
if (name == NULL || *name == 0) {
/* base name on mddev */
/* /dev/md0 -> 0
* /dev/md_d0 -> d0
+ * /dev/md_foo -> foo
* /dev/md/1 -> 1
* /dev/md/d1 -> d1
* /dev/md/home -> home
name = strrchr(mddev, '/');
if (name) {
name++;
- if (strncmp(name, "md_d", 4)==0 &&
- strlen(name) > 4 &&
- isdigit(name[4]) &&
- (name-mddev) == 5 /* /dev/ */)
+ if (strncmp(name, "md_", 3) == 0 &&
+ strlen(name) > 3 && (name-mddev) == 5 /* /dev/ */)
name += 3;
- else if (strncmp(name, "md", 2)==0 &&
- strlen(name) > 2 &&
- isdigit(name[2]) &&
+ 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;
+ if (!st->ss->init_super(st, &info.array, s, name, c->homehost, uuid,
+ data_offset))
+ goto abort_locked;
total_slots = info.array.nr_disks;
- sysfs_init(&info, mdfd, 0);
- st->ss->getinfo_super(st, &info);
+ st->ss->getinfo_super(st, &info, NULL);
+ if (sysfs_init(&info, mdfd, NULL)) {
+ pr_err("unable to initialize sysfs\n");
+ goto abort_locked;
+ }
- if (did_default && verbose >= 0) {
+ if (did_default && c->verbose >= 0) {
if (is_subarray(info.text_version)) {
- int dnum = devname2devnum(info.text_version+1);
- char *path;
- int mdp = get_mdp_major();
+ char devnm[32];
+ char *ep;
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);
+ strncpy(devnm, info.text_version+1, 32);
+ devnm[31] = 0;
+ ep = strchr(devnm, '/');
+ if (ep)
+ *ep = 0;
+
+ mdi = sysfs_read(-1, devnm, GET_VERSION);
- fprintf(stderr, Name ": Creating array inside "
- "%s container %s\n",
- mdi?mdi->text_version:"managed", path);
+ pr_err("Creating array inside %s container %s\n",
+ mdi?mdi->text_version:"managed", devnm);
sysfs_free(mdi);
} else
- fprintf(stderr, Name ": Defaulting to version"
- " %s metadata\n", info.text_version);
+ pr_err("Defaulting to version %s metadata\n", info.text_version);
}
- map_update(&map, fd2devnum(mdfd), info.text_version,
+ map_update(&map, fd2devnm(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
- }
+ /* Keep map locked until devices have been added to array
+ * to stop another mdadm from finding and using those devices.
+ */
- 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 (s->bitmap_file && (strcmp(s->bitmap_file, "internal") == 0 ||
+ strcmp(s->bitmap_file, "clustered") == 0)) {
if (!st->ss->add_internal_bitmap) {
- fprintf(stderr, Name ": internal bitmaps not supported with %s metadata\n",
+ pr_err("internal bitmaps not supported with %s metadata\n",
st->ss->name);
- goto abort;
+ goto abort_locked;
}
- 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;
+ if (st->ss->add_internal_bitmap(st, &s->bitmap_chunk,
+ c->delay, s->write_behind,
+ bitmapsize, 1, major_num)) {
+ pr_err("Given bitmap chunk size not supported.\n");
+ goto abort_locked;
}
- bitmap_file = NULL;
+ s->bitmap_file = NULL;
}
+ if (sysfs_init(&info, mdfd, NULL)) {
+ pr_err("unable to initialize sysfs\n");
+ goto abort_locked;
+ }
- sysfs_init(&info, mdfd, 0);
-
- if (st->ss->external && st->subarray[0]) {
+ if (st->ss->external && st->container_devnm[0]) {
/* member */
/* When creating a member, we need to be careful
*
* For now, fail if it is already running.
*/
- container_fd = open_dev_excl(st->container_dev);
+ container_fd = open_dev_excl(st->container_devnm);
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));
+ pr_err("Cannot get exclusive open on container - weird.\n");
+ goto abort_locked;
+ }
+ if (mdmon_running(st->container_devnm)) {
+ if (c->verbose)
+ pr_err("reusing mdmon for %s.\n",
+ st->container_devnm);
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",
+ pr_err("failed to set array info for %s: %s\n",
mddev, strerror(errno));
- goto abort;
+ goto abort_locked;
}
- if (bitmap_file) {
+ if (s->bitmap_file) {
int uuid[4];
st->ss->uuid_from_super(st, uuid);
- if (CreateBitmap(bitmap_file, force, (char*)uuid, bitmap_chunk,
- delay, write_behind,
+ if (CreateBitmap(s->bitmap_file, c->force, (char*)uuid, s->bitmap_chunk,
+ c->delay, s->write_behind,
bitmapsize,
major_num)) {
- goto abort;
+ goto abort_locked;
}
- bitmap_fd = open(bitmap_file, O_RDWR);
+ bitmap_fd = open(s->bitmap_file, O_RDWR);
if (bitmap_fd < 0) {
- fprintf(stderr, Name ": weird: %s cannot be openned\n",
- bitmap_file);
- goto abort;
+ pr_err("weird: %s cannot be openned\n",
+ s->bitmap_file);
+ goto abort_locked;
}
if (ioctl(mdfd, SET_BITMAP_FILE, bitmap_fd) < 0) {
- fprintf(stderr, Name ": Cannot set bitmap file for %s: %s\n",
+ pr_err("Cannot set bitmap file for %s: %s\n",
mddev, strerror(errno));
- goto abort;
+ goto abort_locked;
}
}
- 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 */
+ infos = xmalloc(sizeof(*infos) * total_slots);
+ enable_fds(total_slots);
+ for (pass = 1; pass <= 2; pass++) {
+ struct mddev_dev *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++) {
+ for (dnum = 0, raid_disk_num = 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) {
+ raid_disk_num += 1;
moved_disk = dv;
continue;
}
- if (strcasecmp(dv->devname, "missing")==0)
+ if (strcasecmp(dv->devname, "missing") == 0) {
+ raid_disk_num += 1;
continue;
+ }
if (have_container)
moved_disk = NULL;
if (have_container && dnum < info.array.raid_disks - 1)
*inf = info;
inf->disk.number = dnum;
- inf->disk.raid_disk = dnum;
- if (inf->disk.raid_disk < raiddisks)
+ inf->disk.raid_disk = raid_disk_num++;
+
+ if (dv->disposition == 'j') {
+ inf->disk.raid_disk = MD_DISK_ROLE_JOURNAL;
+ inf->disk.state = (1<<MD_DISK_JOURNAL);
+ raid_disk_num--;
+ } else if (inf->disk.raid_disk < s->raiddisks)
inf->disk.state = (1<<MD_DISK_ACTIVE) |
(1<<MD_DISK_SYNC);
else
inf->disk.state = 0;
- if (dv->writemostly == 1)
+ if (dv->writemostly == FlagSet)
inf->disk.state |= (1<<MD_DISK_WRITEMOSTLY);
+ if (dv->failfast == FlagSet)
+ inf->disk.state |= (1<<MD_DISK_FAILFAST);
if (have_container)
fd = -1;
else {
- if (st->ss->external && st->subarray[0])
+ if (st->ss->external &&
+ st->container_devnm[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",
+ pr_err("failed to open %s after earlier success - aborting\n",
dv->devname);
- goto abort;
+ goto abort_locked;
}
- fstat(fd, &stb);
- inf->disk.major = major(stb.st_rdev);
- inf->disk.minor = minor(stb.st_rdev);
+ if (!fstat_is_blkdev(fd, dv->devname, &rdev))
+ return 1;
+ inf->disk.major = major(rdev);
+ inf->disk.minor = minor(rdev);
}
if (fd >= 0)
remove_partitions(fd);
if (st->ss->add_to_super(st, &inf->disk,
- fd, dv->devname)) {
+ fd, dv->devname,
+ dv->data_offset)) {
ioctl(mdfd, STOP_ARRAY, NULL);
- goto abort;
+ goto abort_locked;
}
- st->ss->getinfo_super(st, inf);
+ st->ss->getinfo_super(st, inf, NULL);
safe_mode_delay = inf->safe_mode_delay;
- if (have_container && verbose > 0)
- fprintf(stderr, Name ": Using %s for device %d\n",
+ if (have_container && c->verbose > 0)
+ pr_err("Using %s for device %d\n",
map_dev(inf->disk.major,
inf->disk.minor,
0), dnum);
if (!have_container) {
/* getinfo_super might have lost these ... */
- inf->disk.major = major(stb.st_rdev);
- inf->disk.minor = minor(stb.st_rdev);
+ inf->disk.major = major(rdev);
+ inf->disk.minor = minor(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;
+ pr_err("ADD_NEW_DISK for %s failed: %s\n",
+ dv->devname, strerror(errno));
+ goto abort_locked;
}
break;
}
* the subarray cursor such that ->getinfo_super once
* again returns container info.
*/
- map_lock(&map);
- st->ss->getinfo_super(st, &info_new);
- if (st->ss->external && level != LEVEL_CONTAINER &&
+ st->ss->getinfo_super(st, &info_new, NULL);
+ if (st->ss->external && s->level != LEVEL_CONTAINER &&
!same_uuid(info_new.uuid, info.uuid, 0)) {
- map_update(&map, fd2devnum(mdfd),
+ map_update(&map, fd2devnm(mdfd),
info_new.text_version,
info_new.uuid, chosen_name);
- me = map_by_devnum(&map, st->container_dev);
+ me = map_by_devnm(&map, st->container_devnm);
}
- st->ss->write_init_super(st);
+ if (st->ss->write_init_super(st)) {
+ st->ss->free_super(st);
+ goto abort_locked;
+ }
/* update parent container uuid */
if (me) {
- char *path = strdup(me->path);
+ char *path = xstrdup(me->path);
- st->ss->getinfo_super(st, &info_new);
- map_update(&map, st->container_dev,
+ st->ss->getinfo_super(st, &info_new, NULL);
+ map_update(&map, st->container_devnm,
info_new.text_version,
info_new.uuid, path);
free(path);
}
- map_unlock(&map);
flush_metadata_updates(st);
+ st->ss->free_super(st);
}
}
+ map_unlock(&map);
free(infos);
- st->ss->free_super(st);
- if (level == LEVEL_CONTAINER) {
+ if (s->level == LEVEL_CONTAINER) {
/* No need to start. But we should signal udev to
* create links */
sysfs_uevent(&info, "change");
- if (verbose >= 0)
- fprintf(stderr, Name ": container %s prepared.\n", mddev);
+ if (c->verbose >= 0)
+ pr_err("container %s prepared.\n", mddev);
wait_for(chosen_name, mdfd);
- } else if (runstop == 1 || subdevs >= raiddisks) {
+ } else if (c->runstop == 1 || subdevs >= s->raiddisks) {
if (st->ss->external) {
- switch(level) {
+ int err;
+ switch(s->level) {
case LEVEL_LINEAR:
case LEVEL_MULTIPATH:
case 0:
- sysfs_set_str(&info, NULL, "array_state",
- "active");
+ err = sysfs_set_str(&info, NULL, "array_state",
+ c->readonly
+ ? "readonly"
+ : "active");
need_mdmon = 0;
break;
default:
- sysfs_set_str(&info, NULL, "array_state",
- "readonly");
+ err = sysfs_set_str(&info, NULL, "array_state",
+ "readonly");
break;
}
sysfs_set_safemode(&info, safe_mode_delay);
+ if (err) {
+ pr_err("failed to activate array.\n");
+ ioctl(mdfd, STOP_ARRAY, NULL);
+ goto abort;
+ }
+ } else if (c->readonly &&
+ sysfs_attribute_available(
+ &info, NULL, "array_state")) {
+ if (sysfs_set_str(&info, NULL,
+ "array_state", "readonly") < 0) {
+ pr_err("Failed to start array: %s\n",
+ strerror(errno));
+ ioctl(mdfd, STOP_ARRAY, NULL);
+ goto abort;
+ }
} 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));
+ pr_err("RUN_ARRAY failed: %s\n",
+ strerror(errno));
+ if (info.array.chunk_size & (info.array.chunk_size-1)) {
+ cont_err("Problem may be that chunk size is not a power of 2\n");
+ }
ioctl(mdfd, STOP_ARRAY, NULL);
goto abort;
}
+ /* if start_ro module parameter is set, array is
+ * auto-read-only, which is bad as the resync won't
+ * start. So lets make it read-write now.
+ */
+ ioctl(mdfd, RESTART_ARRAY_RW, NULL);
}
- if (verbose >= 0)
- fprintf(stderr, Name ": array %s started.\n", mddev);
- if (st->ss->external && st->subarray[0]) {
+ if (c->verbose >= 0)
+ pr_err("array %s started.\n", mddev);
+ if (st->ss->external && st->container_devnm[0]) {
if (need_mdmon)
- start_mdmon(st->container_dev);
+ start_mdmon(st->container_devnm);
- ping_monitor(devnum2devname(st->container_dev));
+ ping_monitor(st->container_devnm);
close(container_fd);
}
wait_for(chosen_name, mdfd);
} else {
- fprintf(stderr, Name ": not starting array - not enough devices.\n");
+ pr_err("not starting array - not enough devices.\n");
}
close(mdfd);
+ /* Give udev a moment to process the Change event caused
+ * by the close.
+ */
+ usleep(100*1000);
+ udev_unblock();
return 0;
abort:
+ udev_unblock();
map_lock(&map);
- map_remove(&map, fd2devnum(mdfd));
+ abort_locked:
+ map_remove(&map, fd2devnm(mdfd));
map_unlock(&map);
if (mdfd >= 0)
projects / thirdparty / mdadm.git / blobdiff