/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2012 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
#include "md_u.h"
#include <dirent.h>
+static int cmpstringp(const void *p1, const void *p2)
+{
+ return strcmp(* (char * const *) p1, * (char * const *) p2);
+}
+
+static int add_device(const char *dev, char ***p_devices,
+ int *p_max_devices, int n_devices)
+{
+ if (n_devices + 1 >= *p_max_devices) {
+ *p_max_devices += 16;
+ *p_devices = xrealloc(*p_devices, *p_max_devices *
+ sizeof(**p_devices));
+ if (!*p_devices) {
+ *p_max_devices = 0;
+ return 0;
+ }
+ };
+ (*p_devices)[n_devices] = xstrdup(dev);
+ return n_devices + 1;
+}
+
int Detail(char *dev, struct context *c)
{
/*
int d;
time_t atime;
char *str;
- char *devices = NULL;
+ char **devices = NULL;
+ int max_devices = 0, n_devices = 0;
int spares = 0;
struct stat stb;
int is_26 = get_linux_version() >= 2006000;
int max_disks = MD_SB_DISKS; /* just a default */
struct mdinfo *info = NULL;
struct mdinfo *sra;
+ struct mdinfo *subdev;
char *member = NULL;
char *container = NULL;
int rv = c->test ? 4 : 1;
int avail_disks = 0;
char *avail = NULL;
+ int external;
+ int inactive;
if (fd < 0) {
pr_err("cannot open %s: %s\n",
close(fd);
return rv;
}
- if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
- if (errno == ENODEV)
- pr_err("md device %s does not appear to be active.\n",
- dev);
- else
- pr_err("cannot get array detail for %s: %s\n",
- dev, strerror(errno));
+ sra = sysfs_read(fd, NULL, GET_VERSION|GET_DEVS);
+ external = (sra != NULL && sra->array.major_version == -1
+ && sra->array.minor_version == -2);
+ st = super_by_fd(fd, &subarray);
+ if (ioctl(fd, GET_ARRAY_INFO, &array) == 0) {
+ inactive = 0;
+ } else if (errno == ENODEV && sra) {
+ array = sra->array;
+ inactive = 1;
+ } else {
+ pr_err("cannot get array detail for %s: %s\n",
+ dev, strerror(errno));
close(fd);
return rv;
}
- sra = sysfs_read(fd, 0, GET_VERSION);
- st = super_by_fd(fd, &subarray);
if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
stb.st_rdev = 0;
/* This is a subarray of some container.
* We want the name of the container, and the member
*/
- int dn = st->container_dev;
+ int devid = devnm2devid(st->container_devnm);
+ int cfd, err;
member = subarray;
- container = map_dev_preferred(dev2major(dn), dev2minor(dn), 1, c->prefer);
+ container = map_dev_preferred(major(devid), minor(devid),
+ 1, c->prefer);
+ cfd = open_dev(st->container_devnm);
+ if (cfd >= 0) {
+ err = st->ss->load_container(st, cfd, NULL);
+ close(cfd);
+ if (err == 0)
+ info = st->ss->container_content(st, subarray);
+ }
}
- /* try to load a superblock */
- if (st) for (d = 0; d < max_disks; d++) {
+ /* try to load a superblock. Try sra->devs first, then try ioctl */
+ if (st && !info) for (d = 0, subdev = sra ? sra->devs : NULL;
+ d < max_disks || subdev;
+ subdev ? (void)(subdev = subdev->next) : (void)(d++)){
mdu_disk_info_t disk;
char *dv;
int fd2;
int err;
- disk.number = d;
- if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
- continue;
- if (d >= array.raid_disks &&
- disk.major == 0 &&
- disk.minor == 0)
- continue;
+ if (subdev)
+ disk = subdev->disk;
+ else {
+ disk.number = d;
+ if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
+ continue;
+ if (d >= array.raid_disks &&
+ disk.major == 0 &&
+ disk.minor == 0)
+ continue;
+ }
if (array.raid_disks > 0 &&
(disk.state & (1 << MD_DISK_ACTIVE)) == 0)
printf("MD_LEVEL=%s\n", str);
printf("MD_DEVICES=%d\n", array.raid_disks);
} else {
- printf("MD_LEVEL=container\n");
+ if (!inactive)
+ printf("MD_LEVEL=container\n");
printf("MD_DEVICES=%d\n", array.nr_disks);
}
if (container) {
} else {
struct map_ent *mp, *map = NULL;
char nbuf[64];
- mp = map_by_devnum(&map, fd2devnum(fd));
+ mp = map_by_devnm(&map, fd2devnm(fd));
if (mp) {
__fname_from_uuid(mp->uuid, 0, nbuf, ':');
printf("MD_UUID=%s\n", nbuf+5);
putchar('\n');
}
}
+ if (sra) {
+ struct mdinfo *mdi;
+ for (mdi = sra->devs; mdi; mdi = mdi->next) {
+ char *path =
+ map_dev(mdi->disk.major,
+ mdi->disk.minor, 0);
+
+ if (mdi->disk.raid_disk >= 0)
+ printf("MD_DEVICE_%s_ROLE=%d\n",
+ mdi->sys_name+4,
+ mdi->disk.raid_disk);
+ else
+ printf("MD_DEVICE_%s_ROLE=spare\n",
+ mdi->sys_name+4);
+ if (path)
+ printf("MD_DEVICE_%s_DEV=%s\n",
+ mdi->sys_name+4, path);
+ }
+ }
goto out;
}
- disks = xmalloc(max_disks * sizeof(mdu_disk_info_t));
- for (d = 0; d < max_disks; d++) {
+ disks = xmalloc(max_disks * 2 * sizeof(mdu_disk_info_t));
+ for (d = 0; d < max_disks * 2; d++) {
disks[d].state = (1<<MD_DISK_REMOVED);
disks[d].major = disks[d].minor = 0;
disks[d].number = disks[d].raid_disk = d;
}
next = array.raid_disks*2;
- for (d = 0; d < max_disks; d++) {
+ if (inactive) {
+ struct mdinfo *mdi;
+ if (sra != NULL)
+ for (mdi = sra->devs; mdi; mdi = mdi->next) {
+ disks[next++] = mdi->disk;
+ disks[next-1].number = -1;
+ }
+ } else for (d = 0; d < max_disks; d++) {
mdu_disk_info_t disk;
disk.number = d;
if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
else if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks
&& disks[disk.raid_disk*2+1].state == (1<<MD_DISK_REMOVED))
disks[disk.raid_disk*2+1] = disk;
- else if (next < max_disks)
+ else if (next < max_disks*2)
disks[next++] = disk;
}
if (c->brief) {
mdu_bitmap_file_t bmf;
- printf("ARRAY %s", dev);
- if (c->brief > 1) {
+ printf("%sARRAY %s", inactive ? "INACTIVE-":"", dev);
+ if (c->verbose > 0) {
if (array.raid_disks)
printf(" level=%s num-devices=%d",
str?str:"-unknown-",
array.raid_disks );
- else
+ else if (!inactive)
printf(" level=container num-devices=%d",
array.nr_disks);
+ else
+ printf(" num-devices=%d", array.nr_disks);
}
if (container) {
printf(" container=%s", container);
unsigned long long larray_size;
struct mdstat_ent *ms = mdstat_read(0, 0);
struct mdstat_ent *e;
- int devnum = array.md_minor;
- if (major(stb.st_rdev) == (unsigned)get_mdp_major())
- devnum = -1 - devnum;
+ char *devnm;
+ devnm = stat2devnm(&stb);
for (e=ms; e; e=e->next)
- if (e->devnum == devnum)
+ if (strcmp(e->devnm, devnm) == 0)
break;
if (!get_dev_size(fd, NULL, &larray_size))
larray_size = 0;
atime = array.ctime;
if (atime)
printf(" Creation Time : %.24s\n", ctime(&atime));
- if (array.raid_disks == 0)
+ if (array.raid_disks == 0 && external)
str = "container";
- printf(" Raid Level : %s\n", str?str:"-unknown-");
+ if (str)
+ printf(" Raid Level : %s\n", str);
if (larray_size)
printf(" Array Size : %llu%s\n", (larray_size>>10),
human_size(larray_size));
(!e || (e->percent < 0 && e->percent != RESYNC_PENDING &&
e->percent != RESYNC_DELAYED)) ? "" : sync_action[e->resync],
larray_size ? "": ", Not Started",
- e->percent == RESYNC_DELAYED ? " (DELAYED)": "",
- e->percent == RESYNC_PENDING ? " (PENDING)": "");
+ (e && e->percent == RESYNC_DELAYED) ? " (DELAYED)": "",
+ (e && e->percent == RESYNC_PENDING) ? " (PENDING)": "");
+ } else if (inactive) {
+ printf(" State : inactive\n");
}
if (array.raid_disks)
printf(" Active Devices : %d\n", array.active_disks);
- printf("Working Devices : %d\n", array.working_disks);
+ if (array.working_disks > 0)
+ printf("Working Devices : %d\n", array.working_disks);
if (array.raid_disks) {
printf(" Failed Devices : %d\n", array.failed_disks);
printf(" Spare Devices : %d\n", array.spare_disks);
char path[200];
char vbuf[1024];
int nlen = strlen(sra->sys_name);
- int dn;
+ int devid;
if (de->d_name[0] == '.')
continue;
sprintf(path, "/sys/block/%s/md/metadata_version",
strncmp(vbuf+10, sra->sys_name, nlen) != 0 ||
vbuf[10+nlen] != '/')
continue;
- dn = devname2devnum(de->d_name);
+ devid = devnm2devid(de->d_name);
printf(" %s", map_dev_preferred(
- dev2major(dn),
- dev2minor(dn), 1, c->prefer));
+ major(devid),
+ minor(devid), 1, c->prefer));
}
if (dir)
closedir(dir);
}
free(info);
- for (d= 0; d < max_disks; d++) {
+ for (d= 0; d < max_disks * 2; d++) {
char *dv;
mdu_disk_info_t disk = disks[d];
continue;
if (!c->brief) {
if (d == array.raid_disks*2) printf("\n");
- if (disk.raid_disk < 0)
+ if (disk.number < 0)
+ printf(" - %5d %5d - ",
+ disk.major, disk.minor);
+ else if (disk.raid_disk < 0)
printf(" %5d %5d %5d - ",
disk.number, disk.major, disk.minor);
else
rv |= 1;
dv=map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
if (dv != NULL) {
- if (c->brief) {
- if (devices) {
- devices = xrealloc(devices,
- strlen(devices)+1+strlen(dv)+1);
- strcat(strcat(devices,","),dv);
- } else
- devices = xstrdup(dv);
- } else
+ if (c->brief)
+ n_devices = add_device(dv, &devices,
+ &max_devices,
+ n_devices);
+ else
printf(" %s", dv);
}
if (!c->brief) printf("\n");
if (st)
st->ss->free_super(st);
- if (c->brief > 1 && devices) printf("\n devices=%s", devices);
+ if (c->brief && c->verbose > 0 && devices) {
+ qsort(devices, n_devices, sizeof(*devices), cmpstringp);
+ printf("\n devices=%s", devices[0]);
+ for (d = 1; d < n_devices; d++)
+ printf(",%s", devices[d]);
+ }
if (c->brief)
printf("\n");
if (c->test &&
close(fd);
free(subarray);
free(avail);
+ for (d = 0; d < n_devices; d++)
+ free(devices[d]);
+ free(devices);
sysfs_free(sra);
return rv;
}
projects / thirdparty / mdadm.git / blobdiff