* Incremental.c - support --incremental. Part of:
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2006-2012 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2006-2013 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
*/
#include "mdadm.h"
+#include <sys/wait.h>
#include <dirent.h>
#include <ctype.h>
struct supertype *st, int verbose);
static int Incremental_container(struct supertype *st, char *devname,
- struct context *c);
+ struct context *c, char *only);
-int Incremental(char *devname, struct context *c,
+int Incremental(struct mddev_dev *devlist, struct context *c,
struct supertype *st)
{
/* Add this device to an array, creating the array if necessary
* - if number of OK devices match expected, or -R and there are enough,
* start the array (auto-readonly).
*/
- struct stat stb;
+ dev_t rdev, rdev2;
struct mdinfo info, dinfo;
struct mdinfo *sra = NULL, *d;
struct mddev_ident *match;
char chosen_name[1024];
+ char *md_devname;
int rv = 1;
struct map_ent *mp, *map = NULL;
int dfd = -1, mdfd = -1;
int active_disks;
int trustworthy;
char *name_to_use;
- mdu_array_info_t ainf;
struct dev_policy *policy = NULL;
struct map_ent target_array;
int have_target;
+ char *devname = devlist->devname;
+ int journal_device_missing = 0;
struct createinfo *ci = conf_get_create_info();
- if (stat(devname, &stb) < 0) {
- if (c->verbose >= 0)
- pr_err("stat failed for %s: %s.\n",
- devname, strerror(errno));
- return rv;
- }
- if ((stb.st_mode & S_IFMT) != S_IFBLK) {
- if (c->verbose >= 0)
- pr_err("%s is not a block device.\n",
- devname);
+ if (!stat_is_blkdev(devname, &rdev))
return rv;
- }
dfd = dev_open(devname, O_RDONLY);
if (dfd < 0) {
if (c->verbose >= 0)
if (must_be_container(dfd)) {
if (!st)
st = super_by_fd(dfd, NULL);
- if (st)
- st->ignore_hw_compat = 1;
if (st && st->ss->load_container)
rv = st->ss->load_container(st, dfd, NULL);
close(dfd);
if (!rv && st->ss->container_content) {
if (map_lock(&map))
- pr_err("failed to get "
- "exclusive lock on mapfile\n");
- rv = Incremental_container(st, devname, c);
+ pr_err("failed to get exclusive lock on mapfile\n");
+ if (c->export)
+ printf("MD_DEVNAME=%s\n", devname);
+ rv = Incremental_container(st, devname, c, NULL);
map_unlock(&map);
return rv;
}
/* 1/ Check if device is permitted by mdadm.conf */
- if (!conf_test_dev(devname)) {
+ for (;devlist; devlist = devlist->next)
+ if (conf_test_dev(devlist->devname))
+ break;
+ if (!devlist) {
+ devlist = conf_get_devs();
+ for (;devlist; devlist = devlist->next) {
+ if (stat_is_blkdev(devlist->devname, &rdev2) &&
+ rdev2 == rdev)
+ break;
+ }
+ }
+ if (!devlist) {
if (c->verbose >= 0)
pr_err("%s not permitted by mdadm.conf.\n",
devname);
/* 2/ Find metadata, reject if none appropriate (check
* version/name from args) */
- if (fstat(dfd, &stb) < 0) {
- if (c->verbose >= 0)
- pr_err("fstat failed for %s: %s.\n",
- devname, strerror(errno));
- goto out;
- }
- if ((stb.st_mode & S_IFMT) != S_IFBLK) {
- if (c->verbose >= 0)
- pr_err("%s is not a block device.\n",
- devname);
+ if (!fstat_is_blkdev(dfd, devname, &rdev))
goto out;
- }
- dinfo.disk.major = major(stb.st_rdev);
- dinfo.disk.minor = minor(stb.st_rdev);
+ dinfo.disk.major = major(rdev);
+ dinfo.disk.minor = minor(rdev);
policy = disk_policy(&dinfo);
have_target = policy_check_path(&dinfo, &target_array);
- if (st == NULL && (st = guess_super(dfd)) == NULL) {
+ if (st == NULL && (st = guess_super_type(dfd, guess_array)) == NULL) {
if (c->verbose >= 0)
pr_err("no recognisable superblock on %s.\n",
devname);
rv = try_spare(devname, &dfd, policy,
have_target ? &target_array : NULL,
- st, c->verbose);
+ NULL, c->verbose);
goto out;
}
- st->ignore_hw_compat = 1;
+ st->ignore_hw_compat = 0;
+
if (st->ss->compare_super == NULL ||
- st->ss->load_super(st, dfd, NULL)) {
+ st->ss->load_super(st, dfd, c->verbose >= 0 ? devname : NULL)) {
if (c->verbose >= 0)
pr_err("no RAID superblock on %s.\n",
devname);
if (!match && rv == 2)
goto out;
- if (match && match->devname
- && strcasecmp(match->devname, "<ignore>") == 0) {
+ if (match && match->devname &&
+ strcasecmp(match->devname, "<ignore>") == 0) {
if (c->verbose >= 0)
- pr_err("array containing %s is explicitly"
- " ignored by mdadm.conf\n",
+ pr_err("array containing %s is explicitly ignored by mdadm.conf\n",
devname);
goto out;
}
if (!match && !conf_test_metadata(st->ss->name, policy,
(trustworthy == LOCAL))) {
if (c->verbose >= 1)
- pr_err("%s has metadata type %s for which "
- "auto-assembly is disabled\n",
+ pr_err("%s has metadata type %s for which auto-assembly is disabled\n",
devname, st->ss->name);
goto out;
}
c->autof = ci->autof;
name_to_use = info.name;
- if (name_to_use[0] == 0 &&
- info.array.level == LEVEL_CONTAINER) {
+ if (name_to_use[0] == 0 && info.array.level == LEVEL_CONTAINER) {
name_to_use = info.text_version;
trustworthy = METADATA;
}
/* 4/ Check if array exists.
*/
if (map_lock(&map))
- pr_err("failed to get exclusive lock on "
- "mapfile\n");
+ pr_err("failed to get exclusive lock on mapfile\n");
/* Now check we can get O_EXCL. If not, probably "mdadm -A" has
* taken over
*/
}
/* Cannot hold it open while we add the device to the array,
* so we must release the O_EXCL and depend on the map_lock()
+ * So now is the best time to remove any partitions.
*/
+ remove_partitions(dfd);
close(dfd);
dfd = -1;
mp = map_by_uuid(&map, info.uuid);
if (mp)
- mdfd = open_dev(mp->devnum);
+ mdfd = open_dev(mp->devnm);
else
mdfd = -1;
if (mdfd < 0) {
+ /* Skip the clustered ones. This should be started by
+ * clustering resource agents
+ */
+ if (info.array.state & (1 << MD_SB_CLUSTERED))
+ goto out;
+
/* Couldn't find an existing array, maybe make a new one */
mdfd = create_mddev(match ? match->devname : NULL,
- name_to_use, c->autof, trustworthy, chosen_name);
+ name_to_use, c->autof, trustworthy, chosen_name, 0);
if (mdfd < 0)
goto out_unlock;
- sysfs_init(&info, mdfd, 0);
+ if (sysfs_init(&info, mdfd, NULL)) {
+ pr_err("unable to initialize sysfs for %s\n",
+ chosen_name);
+ rv = 2;
+ goto out_unlock;
+ }
if (set_array_info(mdfd, st, &info) != 0) {
pr_err("failed to set array info for %s: %s\n",
}
dinfo = info;
- dinfo.disk.major = major(stb.st_rdev);
- dinfo.disk.minor = minor(stb.st_rdev);
+ dinfo.disk.major = major(rdev);
+ dinfo.disk.minor = minor(rdev);
if (add_disk(mdfd, st, &info, &dinfo) != 0) {
- pr_err("failed to add %s to %s: %s.\n",
+ pr_err("failed to add %s to new array %s: %s.\n",
devname, chosen_name, strerror(errno));
ioctl(mdfd, STOP_ARRAY, 0);
rv = 2;
goto out_unlock;
}
- sra = sysfs_read(mdfd, -1, (GET_DEVS | GET_STATE |
- GET_OFFSET | GET_SIZE));
+ sra = sysfs_read(mdfd, NULL, (GET_DEVS | GET_STATE |
+ GET_OFFSET | GET_SIZE));
if (!sra || !sra->devs || sra->devs->disk.raid_disk >= 0) {
/* It really should be 'none' - must be old buggy
* So reject it.
*/
ioctl(mdfd, STOP_ARRAY, NULL);
- pr_err("You have an old buggy kernel which cannot support\n"
- " --incremental reliably. Aborting.\n");
+ pr_err("You have an old buggy kernel which cannot support\n --incremental reliably. Aborting.\n");
rv = 2;
goto out_unlock;
}
info.array.working_disks = 1;
/* 6/ Make sure /var/run/mdadm.map contains this array. */
- map_update(&map, fd2devnum(mdfd),
+ map_update(&map, fd2devnm(mdfd),
info.text_version,
info.uuid, chosen_name);
} else {
struct supertype *st2;
struct mdinfo info2, *d;
- sra = sysfs_read(mdfd, -1, (GET_DEVS | GET_STATE |
+ sra = sysfs_read(mdfd, NULL, (GET_DEVS | GET_STATE |
GET_OFFSET | GET_SIZE));
if (mp->path)
strcpy(chosen_name, mp->path);
else
- strcpy(chosen_name, devnum2devname(mp->devnum));
+ strcpy(chosen_name, mp->devnm);
/* It is generally not OK to add non-spare drives to a
* running array as they are probably missing because
* flag has a different meaning. The test has to happen
* at the device level there
*/
- if (!st->ss->external
- && (info.disk.state & (1<<MD_DISK_SYNC)) != 0
- && ! policy_action_allows(policy, st->ss->name,
- act_re_add)
- && c->runstop < 1) {
- if (ioctl(mdfd, GET_ARRAY_INFO, &ainf) == 0) {
+ if (!st->ss->external &&
+ (info.disk.state & (1 << MD_DISK_SYNC)) != 0 &&
+ !policy_action_allows(policy, st->ss->name, act_re_add) &&
+ c->runstop < 1) {
+ if (md_array_active(mdfd)) {
pr_err("not adding %s to active array (without --run) %s\n",
devname, chosen_name);
rv = 2;
st2 = dup_super(st);
if (st2->ss->load_super(st2, dfd2, NULL) ||
st->ss->compare_super(st, st2) != 0) {
- pr_err("metadata mismatch between %s and "
- "chosen array %s\n",
+ pr_err("metadata mismatch between %s and chosen array %s\n",
devname, chosen_name);
close(dfd2);
rv = 2;
goto out_unlock;
}
}
- info.disk.major = major(stb.st_rdev);
- info.disk.minor = minor(stb.st_rdev);
+ info.disk.major = major(rdev);
+ info.disk.minor = minor(rdev);
/* add disk needs to know about containers */
if (st->ss->external)
sra->array.level = LEVEL_CONTAINER;
+
+ if (info.array.state & (1 << MD_SB_CLUSTERED))
+ info.disk.state |= (1 << MD_DISK_CLUSTER_ADD);
+
err = add_disk(mdfd, st, sra, &info);
if (err < 0 && errno == EBUSY) {
/* could be another device present with the same
info.events, c->verbose, chosen_name);
err = add_disk(mdfd, st, sra, &info);
}
+ if (err < 0 && errno == EINVAL &&
+ info.disk.state & (1<<MD_DISK_SYNC)) {
+ /* Maybe it needs to be added as a spare */
+ if (policy_action_allows(policy, st->ss->name,
+ act_force_spare)) {
+ info.disk.state &= ~(1<<MD_DISK_SYNC);
+ err = add_disk(mdfd, st, sra, &info);
+ } else
+ if (c->verbose >= 0)
+ pr_err("can only add %s to %s as a spare, and force-spare is not set.\n",
+ devname, chosen_name);
+ }
if (err < 0) {
- pr_err("failed to add %s to %s: %s.\n",
+ pr_err("failed to add %s to existing array %s: %s.\n",
devname, chosen_name, strerror(errno));
rv = 2;
goto out_unlock;
info.array.working_disks ++;
}
+ if (strncmp(chosen_name, "/dev/md/", 8) == 0)
+ md_devname = chosen_name+8;
+ else
+ md_devname = chosen_name;
+ if (c->export) {
+ printf("MD_DEVICE=%s\n", fd2devnm(mdfd));
+ printf("MD_DEVNAME=%s\n", md_devname);
+ printf("MD_FOREIGN=%s\n", trustworthy == FOREIGN ? "yes" : "no");
+ }
/* 7/ Is there enough devices to possibly start the array? */
/* 7a/ if not, finish with success. */
if (info.array.level == LEVEL_CONTAINER) {
- int devnum = devnum; /* defined and used iff ->external */
+ char devnm[32];
/* Try to assemble within the container */
sysfs_uevent(sra, "change");
- if (c->verbose >= 0)
+ if (!c->export && c->verbose >= 0)
pr_err("container %s now has %d device%s\n",
chosen_name, info.array.working_disks,
info.array.working_disks == 1?"":"s");
wait_for(chosen_name, mdfd);
if (st->ss->external)
- devnum = fd2devnum(mdfd);
+ strcpy(devnm, fd2devnm(mdfd));
if (st->ss->load_container)
rv = st->ss->load_container(st, mdfd, NULL);
close(mdfd);
sysfs_free(sra);
if (!rv)
- rv = Incremental_container(st, chosen_name, c);
+ rv = Incremental_container(st, chosen_name, c, NULL);
map_unlock(&map);
- if (rv == 1)
- /* Don't fail the whole -I if a subarray didn't
- * have enough devices to start yet
- */
- rv = 0;
/* after spare is added, ping monitor for external metadata
* so that it can eg. try to rebuild degraded array */
if (st->ss->external)
- ping_monitor_by_id(devnum);
+ ping_monitor(devnm);
return rv;
}
* things change.
*/
sysfs_free(sra);
- sra = sysfs_read(mdfd, -1, (GET_DEVS | GET_STATE |
+ sra = sysfs_read(mdfd, NULL, (GET_DEVS | GET_STATE |
GET_OFFSET | GET_SIZE));
active_disks = count_active(st, sra, mdfd, &avail, &info);
+
+ journal_device_missing = (info.journal_device_required) && (info.journal_clean == 0);
+
+ if (info.consistency_policy == CONSISTENCY_POLICY_PPL)
+ info.array.state |= 1;
+
if (enough(info.array.level, info.array.raid_disks,
- info.array.layout, info.array.state & 1,
- avail) == 0) {
- if (c->verbose >= 0)
+ info.array.layout, info.array.state & 1, avail) == 0) {
+ if (c->export) {
+ printf("MD_STARTED=no\n");
+ } else if (c->verbose >= 0)
pr_err("%s attached to %s, not enough to start (%d).\n",
devname, chosen_name, active_disks);
rv = 0;
/* + add any bitmap file */
/* + start the array (auto-readonly). */
- if (ioctl(mdfd, GET_ARRAY_INFO, &ainf) == 0) {
- if (c->verbose >= 0)
+ if (md_array_active(mdfd)) {
+ if (c->export) {
+ printf("MD_STARTED=already\n");
+ } else if (c->verbose >= 0)
pr_err("%s attached to %s which is already active.\n",
devname, chosen_name);
rv = 0;
}
map_unlock(&map);
- if (c->runstop > 0 || active_disks >= info.array.working_disks) {
+ if (c->runstop > 0 || (!journal_device_missing && active_disks >= info.array.working_disks)) {
struct mdinfo *dsk;
/* Let's try to start it */
+ if (journal_device_missing)
+ pr_err("Trying to run with missing journal device\n");
if (info.reshape_active && !(info.reshape_active & RESHAPE_NO_BACKUP)) {
- fprintf(stderr, Name
- ": %s: This array is being reshaped and cannot be started\n"
- " by --incremental. Please use --assemble\n",
- chosen_name);
+ pr_err("%s: This array is being reshaped and cannot be started\n",
+ chosen_name);
+ cont_err("by --incremental. Please use --assemble\n");
goto out;
}
if (match && match->bitmap_file) {
if (d->disk.state & (1<<MD_DISK_REMOVED))
remove_disk(mdfd, st, sra, d);
- if ((sra == NULL || active_disks >= info.array.working_disks)
- && trustworthy != FOREIGN)
+ if ((sra == NULL || active_disks >= info.array.working_disks) &&
+ trustworthy != FOREIGN)
rv = ioctl(mdfd, RUN_ARRAY, NULL);
else
rv = sysfs_set_str(sra, NULL,
"array_state", "read-auto");
+ /* Array might be O_EXCL which will interfere with
+ * fsck and mount. So re-open without O_EXCL.
+ */
+ reopen_mddev(mdfd);
if (rv == 0) {
- if (c->verbose >= 0)
+ if (c->export) {
+ printf("MD_STARTED=yes\n");
+ } else if (c->verbose >= 0)
pr_err("%s attached to %s, which has been started.\n",
devname, chosen_name);
rv = 0;
* those devices we should re-add them now.
*/
for (dsk = sra->devs; dsk ; dsk = dsk->next) {
- if (disk_action_allows(dsk, st->ss->name, act_re_add) &&
+ if (disk_action_allows(dsk, st->ss->name,
+ act_re_add) &&
add_disk(mdfd, st, sra, dsk) == 0)
pr_err("%s re-added to %s\n",
dsk->sys_name, chosen_name);
rv = 1;
}
} else {
- if (c->verbose >= 0)
+ if (c->export) {
+ printf("MD_STARTED=unsafe\n");
+ } else if (journal_device_missing) {
+ pr_err("Journal device is missing, not safe to start yet.\n");
+ } else if (c->verbose >= 0)
pr_err("%s attached to %s, not enough to start safely.\n",
devname, chosen_name);
rv = 0;
close(mdfd);
if (policy)
dev_policy_free(policy);
- if (sra)
- sysfs_free(sra);
+ sysfs_free(sra);
return rv;
out_unlock:
map_unlock(&map);
* and events less than the passed events, and remove the device.
*/
struct mdinfo *d;
- mdu_array_info_t ra;
- if (ioctl(mdfd, GET_ARRAY_INFO, &ra) == 0)
+ if (md_array_active(mdfd))
return; /* not safe to remove from active arrays
* without thinking more */
for (d = sra->devs; d ; d = d->next) {
- char dn[10];
+ char dn[24]; // 2*11 bytes for ints (including sign) + colon + null byte
int dfd;
struct mdinfo info;
sprintf(dn, "%d:%d", d->disk.major, d->disk.minor);
st->ss->free_super(st);
close(dfd);
- if (info.disk.number != number ||
- info.events >= events)
+ if (info.disk.number != number || info.events >= events)
continue;
if (d->disk.raid_disk > -1)
int cnt = 0;
int replcnt = 0;
__u64 max_events = 0;
+ __u64 max_journal_events = 0;
char *avail = NULL;
int *best = NULL;
char *devmap = NULL;
close(dfd);
if (ok != 0)
continue;
+
info.array.raid_disks = raid_disks;
st->ss->getinfo_super(st, &info, devmap + raid_disks * devnum);
+ if (info.disk.raid_disk == MD_DISK_ROLE_JOURNAL &&
+ info.events > max_journal_events)
+ max_journal_events = info.events;
if (!avail) {
raid_disks = info.array.raid_disks;
avail = xcalloc(raid_disks, 1);
replcnt++;
st->ss->free_super(st);
}
+ if (max_journal_events >= max_events - 1)
+ bestinfo->journal_clean = 1;
+
if (!avail)
return 0;
/* We need to reject any device that thinks the best device is
if (avail[i])
cnt++;
}
+ /* Also need to reject any spare device with an event count that
+ * is too high
+ */
+ for (d = sra->devs; d; d = d->next) {
+ if (!(d->disk.state & (1<<MD_DISK_SYNC)) &&
+ d->events > max_events)
+ d->disk.state |= (1 << MD_DISK_REMOVED);
+ }
free(best);
free(devmap);
return cnt + replcnt;
}
/* test if container has degraded member(s) */
-static int container_members_max_degradation(struct map_ent *map, struct map_ent *me)
+static int
+container_members_max_degradation(struct map_ent *map, struct map_ent *me)
{
- mdu_array_info_t array;
- int afd;
- int max_degraded = 0;
+ struct mdinfo *sra;
+ int degraded, max_degraded = 0;
for(; map; map = map->next) {
- if (!is_subarray(map->metadata) ||
- devname2devnum(map->metadata+1) != me->devnum)
- continue;
- afd = open_dev(map->devnum);
- if (afd < 0)
+ if (!metadata_container_matches(map->metadata, me->devnm))
continue;
/* most accurate information regarding array degradation */
- if (ioctl(afd, GET_ARRAY_INFO, &array) >= 0) {
- int degraded = array.raid_disks - array.active_disks -
- array.spare_disks;
- if (degraded > max_degraded)
- max_degraded = degraded;
- }
- close(afd);
+ sra = sysfs_read(-1, map->devnm,
+ GET_DISKS | GET_DEVS | GET_STATE);
+ if (!sra)
+ continue;
+ degraded = sra->array.raid_disks - sra->array.active_disks -
+ sra->array.spare_disks;
+ if (degraded > max_degraded)
+ max_degraded = degraded;
+ sysfs_free(sra);
}
- return (max_degraded);
+
+ return max_degraded;
}
static int array_try_spare(char *devname, int *dfdp, struct dev_policy *pol,
* Return 0 on success, or some exit code on failure, probably 1.
*/
int rv = 1;
- struct stat stb;
+ dev_t rdev;
struct map_ent *mp, *map = NULL;
struct mdinfo *chosen = NULL;
int dfd = *dfdp;
- if (fstat(dfd, &stb) != 0)
+ if (!fstat_is_blkdev(dfd, devname, &rdev))
return 1;
/*
*/
if (map_lock(&map)) {
- pr_err("failed to get exclusive lock on "
- "mapfile\n");
+ pr_err("failed to get exclusive lock on mapfile\n");
return 1;
}
for (mp = map ; mp ; mp = mp->next) {
struct supertype *st2;
struct domainlist *dl = NULL;
struct mdinfo *sra;
- unsigned long long devsize;
- unsigned long long component_size = 0;
+ unsigned long long devsize, freesize = 0;
+ struct spare_criteria sc = {0, 0};
if (is_subarray(mp->metadata))
continue;
}
free(st2);
}
- sra = sysfs_read(-1, mp->devnum,
+ sra = sysfs_read(-1, mp->devnm,
GET_DEVS|GET_OFFSET|GET_SIZE|GET_STATE|
- GET_DEGRADED|GET_COMPONENT|GET_VERSION);
- if (!sra) {
- /* Probably a container - no degraded info */
- sra = sysfs_read(-1, mp->devnum,
- GET_DEVS|GET_OFFSET|GET_SIZE|GET_STATE|
- GET_COMPONENT|GET_VERSION);
- if (sra)
- sra->array.failed_disks = -1;
- }
- if (!sra)
+ GET_COMPONENT|GET_VERSION);
+ if (sra)
+ sra->array.failed_disks = -1;
+ else
continue;
if (st == NULL) {
int i;
sra->text_version);
if (!st2) {
if (verbose > 1)
- pr_err("not adding %s to %s"
- " as metadata not recognised.\n",
+ pr_err("not adding %s to %s as metadata not recognised.\n",
devname, mp->path);
goto next;
}
/* true for containers, here we must read superblock
* to obtain minimum spare size */
struct supertype *st3 = dup_super(st2);
- int mdfd = open_dev(mp->devnum);
+ int mdfd = open_dev(mp->devnm);
if (mdfd < 0) {
free(st3);
goto next;
}
if (st3->ss->load_container &&
!st3->ss->load_container(st3, mdfd, mp->path)) {
- component_size = st3->ss->min_acceptable_spare_size(st3);
+ if (st3->ss->get_spare_criteria)
+ st3->ss->get_spare_criteria(st3, &sc);
st3->ss->free_super(st3);
}
free(st3);
close(mdfd);
}
if ((sra->component_size > 0 &&
- st2->ss->avail_size(st2, devsize,
- sra->devs
- ? sra->devs->data_offset
- : INVALID_SECTORS)
- < sra->component_size)
- ||
- (sra->component_size == 0 && devsize < component_size)) {
+ st2->ss->validate_geometry(st2, sra->array.level, sra->array.layout,
+ sra->array.raid_disks, &sra->array.chunk_size,
+ sra->component_size,
+ sra->devs ? sra->devs->data_offset : INVALID_SECTORS,
+ devname, &freesize, sra->consistency_policy,
+ 0) &&
+ freesize < sra->component_size) ||
+ (sra->component_size == 0 && devsize < sc.min_size)) {
if (verbose > 1)
pr_err("not adding %s to %s as it is too small\n",
devname, mp->path);
sizeof(target->uuid)) == 0 &&
sra->array.failed_disks > 0) {
/* This is our target!! */
- if (chosen)
- sysfs_free(chosen);
+ sysfs_free(chosen);
chosen = sra;
sra = NULL;
/* skip to end so we don't check any more */
if (domain_test(dl, pol, st2->ss->name) != 1) {
/* domain test fails */
if (verbose > 1)
- pr_err("not adding %s to %s as"
- " it is not in a compatible domain\n",
+ pr_err("not adding %s to %s as it is not in a compatible domain\n",
devname, mp->path);
goto next;
sra = NULL;
}
next:
- if (sra)
- sysfs_free(sra);
+ sysfs_free(sra);
if (st != st2)
free(st2);
if (dl)
}
if (chosen) {
/* add current device to chosen array as a spare */
- int mdfd = open_dev(devname2devnum(chosen->sys_name));
+ int mdfd = open_dev(chosen->sys_name);
if (mdfd >= 0) {
struct mddev_dev devlist;
- char devname[20];
+ char chosen_devname[24]; // 2*11 for int (including signs) + colon + null
devlist.next = NULL;
devlist.used = 0;
- devlist.writemostly = 0;
- devlist.devname = devname;
- sprintf(devname, "%d:%d", major(stb.st_rdev),
- minor(stb.st_rdev));
+ devlist.writemostly = FlagDefault;
+ devlist.failfast = FlagDefault;
+ devlist.devname = chosen_devname;
+ sprintf(chosen_devname, "%d:%d", major(rdev),
+ minor(rdev));
devlist.disposition = 'a';
close(dfd);
*dfdp = -1;
struct supertype *st2 = NULL;
char *devname = NULL;
unsigned long long devsectors;
+ char *pathlist[2];
- if (de->d_ino == 0 ||
- de->d_name[0] == '.' ||
+ if (de->d_ino == 0 || de->d_name[0] == '.' ||
(de->d_type != DT_LNK && de->d_type != DT_UNKNOWN))
goto next;
/* This is a partition - skip it */
goto next;
- pol2 = path_policy(de->d_name, type_disk);
+ pathlist[0] = de->d_name;
+ pathlist[1] = NULL;
+ pol2 = path_policy(pathlist, type_disk);
domain_merge(&domlist, pol2, st ? st->ss->name : NULL);
if (domain_test(domlist, pol, st ? st->ss->name : NULL) != 1)
st2 = dup_super(st);
else
st2 = guess_super_type(fd, guess_partitions);
- if (st2 == NULL ||
- st2->ss->load_super(st2, fd, NULL) < 0)
+ if (st2 == NULL || st2->ss->load_super(st2, fd, NULL) < 0)
goto next;
+ st2->ignore_hw_compat = 0;
if (!st) {
/* Check domain policy again, this time referring to metadata */
* metadata which makes better use of the device can
* be found.
*/
- if (chosen == NULL ||
- chosen_size < info.component_size) {
+ if (chosen == NULL || chosen_size < info.component_size) {
chosen_size = info.component_size;
free(chosen);
chosen = devname;
!policy_action_allows(pol, st?st->ss->name:NULL,
act_spare_same_slot)) {
if (verbose > 1)
- pr_err("%s is not bare, so not "
- "considering as a spare\n",
+ pr_err("%s is not bare, so not considering as a spare\n",
devname);
return 1;
}
* what arrays might be candidates.
*/
if (st) {
- /* just try try 'array' or 'partition' based on this metadata */
+ /* just try to add 'array' or 'partition' based on this metadata */
if (st->ss->add_to_super)
return array_try_spare(devname, dfdp, pol, target, bare,
st, verbose);
return rv;
}
-int IncrementalScan(int verbose)
+int IncrementalScan(struct context *c, char *devnm)
{
/* look at every device listed in the 'map' file.
* If one is found that is not running then:
struct map_ent *me;
struct mddev_ident *devs, *mddev;
int rv = 0;
+ char container[32];
+ char *only = NULL;
map_read(&mapl);
devs = conf_get_ident(NULL);
+restart:
for (me = mapl ; me ; me = me->next) {
- mdu_array_info_t array;
- mdu_bitmap_file_t bmf;
struct mdinfo *sra;
- int mdfd = open_dev(me->devnum);
+ int mdfd;
+
+ if (devnm && strcmp(devnm, me->devnm) != 0)
+ continue;
+ if (me->metadata[0] == '/') {
+ char *sl;
+
+ if (!devnm)
+ continue;
+
+ /* member array, need to work on container */
+ strncpy(container, me->metadata+1, 32);
+ container[31] = 0;
+ sl = strchr(container, '/');
+ if (sl)
+ *sl = 0;
+ only = devnm;
+ devnm = container;
+ goto restart;
+ }
+ mdfd = open_dev(me->devnm);
if (mdfd < 0)
continue;
- if (ioctl(mdfd, GET_ARRAY_INFO, &array) == 0 ||
- errno != ENODEV) {
+ if (!isdigit(me->metadata[0])) {
+ /* must be a container */
+ struct supertype *st = super_by_fd(mdfd, NULL);
+ int ret = 0;
+ struct map_ent *map = NULL;
+
+ if (st && st->ss->load_container)
+ ret = st->ss->load_container(st, mdfd, NULL);
+ close(mdfd);
+ if (!ret && st && st->ss->container_content) {
+ if (map_lock(&map))
+ pr_err("failed to get exclusive lock on mapfile\n");
+ ret = Incremental_container(st, me->path, c, only);
+ map_unlock(&map);
+ }
+ if (ret)
+ rv = 1;
+ continue;
+ }
+ if (md_array_active(mdfd)) {
close(mdfd);
continue;
}
/* Ok, we can try this one. Maybe it needs a bitmap */
for (mddev = devs ; mddev ; mddev = mddev->next)
- if (mddev->devname && me->path
- && devname_matches(mddev->devname, me->path))
+ if (mddev->devname && me->path &&
+ devname_matches(mddev->devname, me->path))
break;
if (mddev && mddev->bitmap_file) {
/*
* is a hint only
*/
int added = -1;
- if (ioctl(mdfd, GET_ARRAY_INFO, &bmf) < 0) {
- int bmfd = open(mddev->bitmap_file, O_RDWR);
- if (bmfd >= 0) {
- added = ioctl(mdfd, SET_BITMAP_FILE,
- bmfd);
- close(bmfd);
- }
+ int bmfd;
+
+ bmfd = open(mddev->bitmap_file, O_RDWR);
+ if (bmfd >= 0) {
+ added = ioctl(mdfd, SET_BITMAP_FILE, bmfd);
+ close(bmfd);
}
- if (verbose >= 0) {
+ if (c->verbose >= 0) {
if (added == 0)
pr_err("Added bitmap %s to %s\n",
mddev->bitmap_file, me->path);
/* FIXME check for reshape_active and consider not
* starting array.
*/
- sra = sysfs_read(mdfd, 0, 0);
+ sra = sysfs_read(mdfd, NULL, 0);
if (sra) {
if (sysfs_set_str(sra, NULL,
"array_state", "read-auto") == 0) {
- if (verbose >= 0)
+ if (c->verbose >= 0)
pr_err("started array %s\n",
- me->path ?: devnum2devname(me->devnum));
+ me->path ?: me->devnm);
} else {
pr_err("failed to start array %s: %s\n",
- me->path ?: devnum2devname(me->devnum),
+ me->path ?: me->devnm,
strerror(errno));
rv = 1;
}
sysfs_free(sra);
}
}
+ map_free(mapl);
return rv;
}
if (devname[0] == '/') {
int fd = open(devname, O_RDONLY);
if (fd >= 0) {
- mdname = devnum2devname(fd2devnum(fd));
+ mdname = xstrdup(fd2devnm(fd));
close(fd);
}
} else {
return mdname;
mp = map_by_uuid(&map, uuid);
if (mp)
- mdname = devnum2devname(mp->devnum);
+ mdname = xstrdup(mp->devnm);
map_free(map);
}
}
static int Incremental_container(struct supertype *st, char *devname,
- struct context *c)
+ struct context *c, char *only)
{
/* Collect the contents of this container and for each
* array, choose a device name and assemble the array.
int sfd;
int ra_blocked = 0;
int ra_all = 0;
+ int result = 0;
st->ss->getinfo_super(st, &info, NULL);
info.container_enough > 0)
/* pass */;
else {
- if (c->verbose)
+ if (c->export) {
+ printf("MD_STARTED=no\n");
+ } else if (c->verbose)
pr_err("not enough devices to start the container\n");
return 0;
}
list = st->ss->container_content(st, NULL);
/* when nothing to activate - quit */
- if (list == NULL)
+ if (list == NULL) {
+ if (c->export) {
+ printf("MD_STARTED=nothing\n");
+ }
return 0;
+ }
for (ra = list ; ra ; ra = ra->next) {
int mdfd;
char chosen_name[1024];
mp = map_by_uuid(&map, ra->uuid);
if (mp) {
- mdfd = open_dev(mp->devnum);
+ mdfd = open_dev(mp->devnm);
if (mp->path)
strcpy(chosen_name, mp->path);
else
- strcpy(chosen_name, devnum2devname(mp->devnum));
- } else {
+ strcpy(chosen_name, mp->devnm);
+ } else if (!only) {
/* Check in mdadm.conf for container == devname and
* member == ra->text_version after second slash.
if (match && match->devname &&
strcasecmp(match->devname, "<ignore>") == 0) {
if (c->verbose > 0)
- pr_err("array %s/%s is "
- "explicitly ignored by mdadm.conf\n",
+ pr_err("array %s/%s is explicitly ignored by mdadm.conf\n",
match->container, match->member);
- return 2;
+ continue;
}
if (match)
trustworthy = LOCAL;
ra->name,
c->autof,
trustworthy,
- chosen_name);
+ chosen_name, 0);
}
+ if (only && (!mp || strcmp(mp->devnm, only) != 0))
+ continue;
if (mdfd < 0) {
pr_err("failed to open %s: %s.\n",
}
assemble_container_content(st, mdfd, ra, c,
- chosen_name);
+ chosen_name, &result);
+ map_free(map);
+ map = NULL;
close(mdfd);
}
+ if (c->export && result) {
+ char sep = '=';
+ printf("MD_STARTED");
+ if (result & INCR_NO) {
+ printf("%cno", sep);
+ sep = ',';
+ }
+ if (result & INCR_UNSAFE) {
+ printf("%cunsafe", sep);
+ sep = ',';
+ }
+ if (result & INCR_ALREADY) {
+ printf("%calready", sep);
+ sep = ',';
+ }
+ if (result & INCR_YES) {
+ printf("%cyes", sep);
+ sep = ',';
+ }
+ printf("\n");
+ }
/* don't move spares to container with volume being activated
when all volumes are blocked */
struct supertype *sst =
super_imsm.match_metadata_desc("imsm");
struct mdinfo *sinfo;
- unsigned long long min_size = 0;
- if (st->ss->min_acceptable_spare_size)
- min_size = st->ss->min_acceptable_spare_size(st);
+
if (!sst->ss->load_container(sst, sfd, NULL)) {
+ struct spare_criteria sc = {0, 0};
+
+ if (st->ss->get_spare_criteria)
+ st->ss->get_spare_criteria(st, &sc);
+
close(sfd);
- sinfo = container_choose_spares(sst, min_size,
+ sinfo = container_choose_spares(sst, &sc,
domains, NULL,
st->ss->name, 0);
sst->ss->free_super(sst);
close(sfd);
}
domain_free(domains);
+ map_free(map);
return 0;
}
+static void run_udisks(char *arg1, char *arg2)
+{
+ int pid = fork();
+ int status;
+ if (pid == 0) {
+ execl("/usr/bin/udisks", "udisks", arg1, arg2, NULL);
+ execl("/bin/udisks", "udisks", arg1, arg2, NULL);
+ exit(1);
+ }
+ while (pid > 0 && wait(&status) != pid)
+ ;
+}
+
+static int force_remove(char *devnm, int fd, struct mdinfo *mdi, int verbose)
+{
+ int rv;
+ int devid = devnm2devid(devnm);
+
+ run_udisks("--unmount", map_dev(major(devid), minor(devid), 0));
+ rv = Manage_stop(devnm, fd, verbose, 1);
+ if (rv) {
+ /* At least we can try to trigger a 'remove' */
+ sysfs_uevent(mdi, "remove");
+ if (verbose)
+ pr_err("Fail to stop %s too.\n", devnm);
+ }
+ return rv;
+}
+
+static void remove_from_member_array(struct mdstat_ent *memb,
+ struct mddev_dev *devlist, int verbose)
+{
+ int rv;
+ struct mdinfo mmdi;
+ int subfd = open_dev(memb->devnm);
+
+ if (subfd >= 0) {
+ rv = Manage_subdevs(memb->devnm, subfd, devlist, verbose,
+ 0, NULL, 0);
+ if (rv & 2) {
+ if (sysfs_init(&mmdi, -1, memb->devnm))
+ pr_err("unable to initialize sysfs for: %s\n",
+ memb->devnm);
+ else
+ force_remove(memb->devnm, subfd, &mmdi,
+ verbose);
+ }
+ close(subfd);
+ }
+}
+
/*
* IncrementalRemove - Attempt to see if the passed in device belongs to any
* raid arrays, and if so first fail (if needed) and then remove the device.
int IncrementalRemove(char *devname, char *id_path, int verbose)
{
int mdfd;
- int rv;
+ int rv = 0;
struct mdstat_ent *ent;
struct mddev_dev devlist;
+ struct mdinfo mdi;
+ char buf[32];
if (!id_path)
- dprintf(Name ": incremental removal without --path <id_path> "
- "lacks the possibility to re-add new device in this "
- "port\n");
+ dprintf("incremental removal without --path <id_path> lacks the possibility to re-add new device in this port\n");
if (strchr(devname, '/')) {
- pr_err("incremental removal requires a "
- "kernel device name, not a file: %s\n", devname);
+ pr_err("incremental removal requires a kernel device name, not a file: %s\n", devname);
return 1;
}
ent = mdstat_by_component(devname);
if (!ent) {
- pr_err("%s does not appear to be a component "
- "of any array\n", devname);
+ if (verbose >= 0)
+ pr_err("%s does not appear to be a component of any array\n", devname);
+ return 1;
+ }
+ if (sysfs_init(&mdi, -1, ent->devnm)) {
+ pr_err("unable to initialize sysfs for: %s\n", devname);
return 1;
}
- mdfd = open_dev(ent->devnum);
+ mdfd = open_dev_excl(ent->devnm);
+ if (mdfd > 0) {
+ close(mdfd);
+ if (sysfs_get_str(&mdi, NULL, "array_state",
+ buf, sizeof(buf)) > 0) {
+ if (strncmp(buf, "active", 6) == 0 ||
+ strncmp(buf, "clean", 5) == 0)
+ sysfs_set_str(&mdi, NULL,
+ "array_state", "read-auto");
+ }
+ }
+ mdfd = open_dev(ent->devnm);
if (mdfd < 0) {
- pr_err("Cannot open array %s!!\n", ent->dev);
+ if (verbose >= 0)
+ pr_err("Cannot open array %s!!\n", ent->devnm);
free_mdstat(ent);
return 1;
}
if (id_path) {
struct map_ent *map = NULL, *me;
- me = map_by_devnum(&map, ent->devnum);
+ me = map_by_devnm(&map, ent->devnm);
if (me)
policy_save_path(id_path, me);
map_free(map);
strncmp(ent->metadata_version, "external:", 9) == 0) {
struct mdstat_ent *mdstat = mdstat_read(0, 0);
struct mdstat_ent *memb;
- for (memb = mdstat ; memb ; memb = memb->next)
- if (is_container_member(memb, ent->dev)) {
- int subfd = open_dev(memb->devnum);
- if (subfd >= 0) {
- Manage_subdevs(memb->dev, subfd,
- &devlist, verbose, 0,
- NULL, 0);
- close(subfd);
- }
- }
+ for (memb = mdstat ; memb ; memb = memb->next) {
+ if (is_container_member(memb, ent->devnm))
+ remove_from_member_array(memb,
+ &devlist, verbose);
+ }
free_mdstat(mdstat);
- } else
- Manage_subdevs(ent->dev, mdfd, &devlist, verbose, 0, NULL, 0);
+ } else {
+ rv |= Manage_subdevs(ent->devnm, mdfd, &devlist,
+ verbose, 0, NULL, 0);
+ if (rv & 2) {
+ /* Failed due to EBUSY, try to stop the array.
+ * Give udisks a chance to unmount it first.
+ */
+ rv = force_remove(ent->devnm, mdfd, &mdi, verbose);
+ goto end;
+ }
+ }
+
devlist.disposition = 'r';
- rv = Manage_subdevs(ent->dev, mdfd, &devlist, verbose, 0, NULL, 0);
+ rv = Manage_subdevs(ent->devnm, mdfd, &devlist,
+ verbose, 0, NULL, 0);
+end:
close(mdfd);
free_mdstat(ent);
return rv;
projects / thirdparty / mdadm.git / blobdiff