/*
* 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
*
*/
mdu_array_info_t array;
-
+
if (md_get_version(fd) < 9000) {
fprintf(stderr, Name ": need md driver version 0.90.0 or later\n");
return 1;
devname);
return 1;
}
-
+
if (readonly>0) {
if (ioctl(fd, STOP_ARRAY_RO, NULL)) {
fprintf(stderr, Name ": failed to set readonly for %s: %s\n",
return 1;
}
}
- return 0;
+ return 0;
}
+#ifndef MDASSEMBLE
+
int Manage_runstop(char *devname, int fd, int runstop, int quiet)
{
/* Run or stop the array. array must already be configured
return 1;
}
}
-
+
if (md_get_version(fd) < 9000) {
fprintf(stderr, Name ": need md driver version 0.90.0 or later\n");
return 1;
devname, strerror(errno));
return 1;
}
+ if (quiet <= 0)
+ fprintf(stderr, Name ": started %s\n", devname);
} else if (runstop < 0){
+ struct map_ent *map = NULL;
+ struct stat stb;
if (ioctl(fd, STOP_ARRAY, NULL)) {
- if (!quiet)
+ if (quiet==0)
fprintf(stderr, Name ": fail to stop array %s: %s\n",
devname, strerror(errno));
return 1;
}
+ if (quiet <= 0)
+ fprintf(stderr, Name ": stopped %s\n", devname);
+ if (fstat(fd, &stb) == 0) {
+ int devnum;
+ if (major(stb.st_rdev) == MD_MAJOR)
+ devnum = minor(stb.st_rdev);
+ else
+ devnum = -1-(minor(stb.st_rdev)>>6);
+ map_delete(&map, devnum);
+ map_write(map);
+ map_free(map);
+ }
}
return 0;
}
* try HOT_ADD_DISK
* If that fails EINVAL, try ADD_NEW_DISK
* 'r' - remove the device HOT_REMOVE_DISK
+ * device can be 'faulty' or 'detached' in which case all
+ * matching devices are removed.
* 'f' - set the device faulty SET_DISK_FAULTY
+ * device can be 'detached' in which case any device that
+ * is inaccessible will be marked faulty.
*/
mdu_array_info_t array;
mdu_disk_info_t disc;
- mddev_dev_t dv;
+ mddev_dev_t dv, next = NULL;
struct stat stb;
- int j;
+ int j, jnext = 0;
int tfd;
struct supertype *st;
void *dsuper = NULL;
devname);
return 1;
}
- for (dv = devlist ; dv; dv=dv->next) {
- if (stat(dv->devname, &stb)) {
- fprintf(stderr, Name ": cannot find %s: %s\n",
- dv->devname, strerror(errno));
- return 1;
- }
- if ((stb.st_mode & S_IFMT) != S_IFBLK) {
- fprintf(stderr, Name ": %s is not a block device.\n",
- dv->devname);
- return 1;
+ for (dv = devlist, j=0 ; dv; dv = next, j = jnext) {
+ unsigned long long ldsize;
+ char dvname[20];
+ char *dnprintable = dv->devname;
+
+ next = dv->next;
+ jnext = 0;
+
+ if (strcmp(dv->devname, "failed")==0 ||
+ strcmp(dv->devname, "faulty")==0) {
+ if (dv->disposition != 'r') {
+ fprintf(stderr, Name ": %s only meaningful "
+ "with -r, not -%c\n",
+ dv->devname, dv->disposition);
+ return 1;
+ }
+ for (; j < array.raid_disks + array.nr_disks ; j++) {
+ disc.number = j;
+ if (ioctl(fd, GET_DISK_INFO, &disc))
+ continue;
+ if (disc.major == 0 && disc.minor == 0)
+ continue;
+ if ((disc.state & 1) == 0) /* faulty */
+ continue;
+ stb.st_rdev = makedev(disc.major, disc.minor);
+ next = dv;
+ jnext = j+1;
+ sprintf(dvname,"%d:%d", disc.major, disc.minor);
+ dnprintable = dvname;
+ break;
+ }
+ if (jnext == 0)
+ continue;
+ } else if (strcmp(dv->devname, "detached") == 0) {
+ if (dv->disposition != 'r' && dv->disposition != 'f') {
+ fprintf(stderr, Name ": %s only meaningful "
+ "with -r of -f, not -%c\n",
+ dv->devname, dv->disposition);
+ return 1;
+ }
+ for (; j < array.raid_disks + array.nr_disks; j++) {
+ int sfd;
+ disc.number = j;
+ if (ioctl(fd, GET_DISK_INFO, &disc))
+ continue;
+ if (disc.major == 0 && disc.minor == 0)
+ continue;
+ sprintf(dvname,"%d:%d", disc.major, disc.minor);
+ sfd = dev_open(dvname, O_RDONLY);
+ if (sfd >= 0) {
+ close(sfd);
+ continue;
+ }
+ if (dv->disposition == 'f' &&
+ (disc.state & 1) == 1) /* already faulty */
+ continue;
+ if (errno != ENXIO)
+ continue;
+ stb.st_rdev = makedev(disc.major, disc.minor);
+ next = dv;
+ jnext = j+1;
+ dnprintable = dvname;
+ break;
+ }
+ if (jnext == 0)
+ continue;
+ } else {
+ j = 0;
+
+ if (stat(dv->devname, &stb)) {
+ fprintf(stderr, Name ": cannot find %s: %s\n",
+ dv->devname, strerror(errno));
+ return 1;
+ }
+ if ((stb.st_mode & S_IFMT) != S_IFBLK) {
+ fprintf(stderr, Name ": %s is not a "
+ "block device.\n",
+ dv->devname);
+ return 1;
+ }
}
switch(dv->disposition){
default:
dv->devname, dv->disposition);
return 1;
case 'a':
- /* add the device - hot or cold */
+ /* add the device */
st = super_by_version(array.major_version,
array.minor_version);
if (!st) {
dv->devname, strerror(errno));
return 1;
}
+ remove_partitions(tfd);
if (array.not_persistent==0)
st->ss->load_super(st, tfd, &osuper, NULL);
/* will use osuper later */
+ if (!get_dev_size(tfd, dv->devname, &ldsize)) {
+ close(tfd);
+ return 1;
+ }
close(tfd);
if (array.major_version == 0 &&
if (array.not_persistent == 0) {
+ /* Make sure device is large enough */
+ if (st->ss->avail_size(st, ldsize/512) <
+ array.size) {
+ fprintf(stderr, Name ": %s not large enough to join array\n",
+ dv->devname);
+ return 1;
+ }
+
/* need to find a sample superblock to copy, and
- * a spare slot to use
+ * a spare slot to use
*/
for (j=0; j<st->max_devs; j++) {
char *dev;
continue;
if ((disc.state & 4)==0) continue; /* sync */
/* Looks like a good device to try */
- dev = map_dev(disc.major, disc.minor);
+ dev = map_dev(disc.major, disc.minor, 1);
if (!dev) continue;
- dfd = open(dev, O_RDONLY);
+ dfd = dev_open(dev, O_RDONLY);
if (dfd < 0) continue;
if (st->ss->load_super(st, dfd, &dsuper, NULL)) {
close(dfd);
* and was temporarily removed, and is now being re-added.
* If so, we can simply re-add it.
*/
- st->ss->uuid_from_super(duuid, dsuper);
-
- if (osuper) {
- st->ss->uuid_from_super(ouuid, osuper);
+ st->ss->uuid_from_super(st, duuid, dsuper);
+
+ /* re-add doesn't work for version-1 superblocks
+ * before 2.6.18 :-(
+ */
+ if (array.major_version == 1 &&
+ get_linux_version() <= 2006018)
+ ;
+ else if (osuper) {
+ st->ss->uuid_from_super(st, ouuid, osuper);
if (memcmp(duuid, ouuid, sizeof(ouuid))==0) {
- /* look close enough for now. Kernel
- * will worry about where a bitmap
- * based reconstruct is possible
+ /* looks close enough for now. Kernel
+ * will worry about whether a bitmap
+ * based reconstruction is possible.
*/
struct mdinfo mdi;
- struct mddev_ident_s ident;
- st->ss->getinfo_super(&mdi, &ident, osuper);
+ st->ss->getinfo_super(st, &mdi, osuper);
disc.major = major(stb.st_rdev);
disc.minor = minor(stb.st_rdev);
disc.number = mdi.disk.number;
disc.raid_disk = mdi.disk.raid_disk;
disc.state = mdi.disk.state;
+ if (dv->writemostly)
+ disc.state |= 1 << MD_DISK_WRITEMOSTLY;
if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) {
if (verbose >= 0)
fprintf(stderr, Name ": re-added %s\n", dv->devname);
- return 0;
+ continue;
}
/* fall back on normal-add */
}
}
+ } else {
+ /* non-persistent. Must ensure that new drive
+ * is at least array.size big.
+ */
+ if (ldsize/512 < array.size) {
+ fprintf(stderr, Name ": %s not large enough to join array\n",
+ dv->devname);
+ return 1;
+ }
}
- for (j=0; j< st->max_devs; j++) {
+ /* in 2.6.17 and earlier, version-1 superblocks won't
+ * use the number we write, but will choose a free number.
+ * we must choose the same free number, which requires
+ * starting at 'raid_disks' and counting up
+ */
+ for (j = array.raid_disks; j< st->max_devs; j++) {
disc.number = j;
if (ioctl(fd, GET_DISK_INFO, &disc))
break;
if (array.not_persistent==0) {
if (dv->writemostly)
disc.state |= 1 << MD_DISK_WRITEMOSTLY;
- st->ss->add_to_super(dsuper, &disc);
- if (st->ss->write_init_super(st, dsuper, &disc, dv->devname, 0 /* FIXME */))
+ st->ss->add_to_super(st, dsuper, &disc);
+ if (st->ss->write_init_super(st, dsuper, &disc, dv->devname))
return 1;
} else if (dv->re_add) {
/* this had better be raid1.
break;
}
}
+ if (dv->writemostly)
+ disc.state |= (1 << MD_DISK_WRITEMOSTLY);
if (ioctl(fd,ADD_NEW_DISK, &disc)) {
fprintf(stderr, Name ": add new device failed for %s as %d: %s\n",
dv->devname, j, strerror(errno));
/* hot remove */
/* FIXME check that it is a current member */
if (ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev)) {
- fprintf(stderr, Name ": hot remove failed for %s: %s\n",
- dv->devname, strerror(errno));
+ fprintf(stderr, Name ": hot remove failed "
+ "for %s: %s\n", dnprintable,
+ strerror(errno));
return 1;
}
if (verbose >= 0)
- fprintf(stderr, Name ": hot removed %s\n", dv->devname);
+ fprintf(stderr, Name ": hot removed %s\n",
+ dnprintable);
break;
case 'f': /* set faulty */
/* FIXME check current member */
if (ioctl(fd, SET_DISK_FAULTY, (unsigned long) stb.st_rdev)) {
fprintf(stderr, Name ": set device faulty failed for %s: %s\n",
- dv->devname, strerror(errno));
+ dnprintable, strerror(errno));
return 1;
}
if (verbose >= 0)
fprintf(stderr, Name ": set %s faulty in %s\n",
- dv->devname, devname);
+ dnprintable, devname);
break;
}
}
return 0;
-
+
+}
+
+int autodetect(void)
+{
+ /* Open any md device, and issue the RAID_AUTORUN ioctl */
+ int rv = 1;
+ int fd = dev_open("9:0", O_RDONLY);
+ if (fd >= 0) {
+ if (ioctl(fd, RAID_AUTORUN, 0) == 0)
+ rv = 0;
+ close(fd);
+ }
+ return rv;
}
+#endif
projects / thirdparty / mdadm.git / blobdiff