imsm: Remove --dump/--restore implementation

[thirdparty/mdadm.git] / mdadm.c

diff --git a/mdadm.c b/mdadm.c
index d6b54378a6bed8a5d4748c1299246b3a77af9d37..13dc24e4426923c1ba450fc68e47cfdf33498c5c 100644 (file)
--- a/mdadm.c
+++ b/mdadm.c
@@ -57,6 +57,7 @@ int main(int argc, char *argv[])
        struct mddev_dev *devlist = NULL;
        struct mddev_dev **devlistend = & devlist;
        struct mddev_dev *dv;
+       mdu_array_info_t array;
        int devs_found = 0;
        char *symlinks = NULL;
        int grow_continue = 0;
@@ -78,7 +79,7 @@ int main(int argc, char *argv[])
                .level          = UnSet,
                .layout         = UnSet,
                .bitmap_chunk   = UnSet,
-               .consistency_policy     = UnSet,
+               .consistency_policy     = CONSISTENCY_POLICY_UNKNOWN,
        };
 
        char sys_hostname[256];
@@ -103,6 +104,7 @@ int main(int argc, char *argv[])
        FILE *outf;
 
        int mdfd = -1;
+       int locked = 0;
 
        srandom(time(0) ^ getpid());
 
@@ -120,6 +122,11 @@ int main(int argc, char *argv[])
        ident.container = NULL;
        ident.member = NULL;
 
+       if (get_linux_version() < 2006015) {
+               pr_err("This version of mdadm does not support kernels older than 2.6.15\n");
+               exit(1);
+       }
+
        while ((option_index = -1),
               (opt = getopt_long(argc, argv, shortopt, long_options,
                                  &option_index)) != -1) {
@@ -152,6 +159,10 @@ int main(int argc, char *argv[])
                        c.brief = 1;
                        continue;
 
+               case NoDevices:
+                       c.no_devices = 1;
+                       continue;
+
                case 'Y': c.export++;
                        continue;
 
@@ -539,6 +550,14 @@ int main(int argc, char *argv[])
                                pr_err("raid level must be given before layout.\n");
                                exit(2);
 
+                       case 0:
+                               s.layout = map_name(r0layout, optarg);
+                               if (s.layout == UnSet) {
+                                       pr_err("layout %s not understood for raid0.\n",
+                                               optarg);
+                                       exit(2);
+                               }
+                               break;
                        case 5:
                                s.layout = map_name(r5layout, optarg);
                                if (s.layout == UnSet) {
@@ -614,7 +633,7 @@ int main(int argc, char *argv[])
                        c.homecluster = optarg;
                        if (strlen(c.homecluster) > 64) {
                                pr_err("Cluster name too big.\n");
-                               exit(ERANGE);
+                               exit(2);
                        }
                        continue;
                case O(CREATE,'x'): /* number of spare (eXtra) disks */
@@ -776,6 +795,9 @@ int main(int argc, char *argv[])
                                continue;
                        if (strcmp(c.update, "revert-reshape") == 0)
                                continue;
+                       if (strcmp(c.update, "layout-original") == 0 ||
+                           strcmp(c.update, "layout-alternate") == 0)
+                               continue;
                        if (strcmp(c.update, "byteorder") == 0) {
                                if (ss) {
                                        pr_err("must not set metadata type with --update=byteorder.\n");
@@ -806,6 +828,7 @@ int main(int argc, char *argv[])
                "     'summaries', 'homehost', 'home-cluster', 'byteorder', 'devicesize',\n"
                "     'no-bitmap', 'metadata', 'revert-reshape'\n"
                "     'bbl', 'no-bbl', 'force-no-bbl', 'ppl', 'no-ppl'\n"
+               "     'layout-original', 'layout-alternate'\n"
                                );
                        exit(outf == stdout ? 0 : 2);
 
@@ -1223,8 +1246,7 @@ int main(int argc, char *argv[])
                case O(GROW, 'k'):
                        s.consistency_policy = map_name(consistency_policies,
                                                        optarg);
-                       if (s.consistency_policy == UnSet ||
-                           s.consistency_policy < CONSISTENCY_POLICY_RESYNC) {
+                       if (s.consistency_policy < CONSISTENCY_POLICY_RESYNC) {
                                pr_err("Invalid consistency policy: %s\n",
                                       optarg);
                                exit(2);
@@ -1262,7 +1284,7 @@ int main(int argc, char *argv[])
                        pr_err("--write-journal is only supported for RAID level 4/5/6.\n");
                        exit(2);
                }
-               if (s.consistency_policy != UnSet &&
+               if (s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN &&
                    s.consistency_policy != CONSISTENCY_POLICY_JOURNAL) {
                        pr_err("--write-journal is not supported with consistency policy: %s\n",
                               map_num(consistency_policies, s.consistency_policy));
@@ -1270,7 +1292,8 @@ int main(int argc, char *argv[])
                }
        }
 
-       if (mode == CREATE && s.consistency_policy != UnSet) {
+       if (mode == CREATE &&
+           s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN) {
                if (s.level <= 0) {
                        pr_err("--consistency-policy not meaningful with level %s.\n",
                               map_num(pers, s.level));
@@ -1429,6 +1452,22 @@ int main(int argc, char *argv[])
                /* --scan implied --brief unless -vv */
                c.brief = 1;
 
+       if (mode == CREATE) {
+               if (s.bitmap_file && strcmp(s.bitmap_file, "clustered") == 0) {
+                       locked = cluster_get_dlmlock();
+                       if (locked != 1)
+                               exit(1);
+               }
+       } else if (mode == MANAGE || mode == GROW || mode == INCREMENTAL) {
+               if (!md_get_array_info(mdfd, &array) && (devmode != 'c')) {
+                       if (array.state & (1 << MD_SB_CLUSTERED)) {
+                               locked = cluster_get_dlmlock();
+                               if (locked != 1)
+                                       exit(1);
+                       }
+               }
+       }
+
        switch(mode) {
        case MANAGE:
                /* readonly, add/remove, readwrite, runstop */
@@ -1446,9 +1485,12 @@ int main(int argc, char *argv[])
                        rv = Manage_stop(devlist->devname, mdfd, c.verbose, 0);
                break;
        case ASSEMBLE:
-               if (devs_found == 1 && ident.uuid_set == 0 &&
-                   ident.super_minor == UnSet && ident.name[0] == 0 &&
-                   !c.scan ) {
+               if (!c.scan && c.runstop == -1) {
+                       pr_err("--no-degraded not meaningful without a --scan assembly.\n");
+                       exit(1);
+               } else if (devs_found == 1 && ident.uuid_set == 0 &&
+                          ident.super_minor == UnSet && ident.name[0] == 0 &&
+                          !c.scan) {
                        /* Only a device has been given, so get details from config file */
                        struct mddev_ident *array_ident = conf_get_ident(devlist->devname);
                        if (array_ident == NULL) {
@@ -1537,8 +1579,13 @@ int main(int argc, char *argv[])
                                break;
                        }
 
-                       if (s.level != 1) {
-                               pr_err("--bitmap=clustered is currently supported with RAID mirror only\n");
+                       if (s.level != 1 && s.level != 10) {
+                               pr_err("--bitmap=clustered is currently supported with raid1/10 only\n");
+                               rv = 1;
+                               break;
+                       }
+                       if (s.level == 10 && !(is_near_layout_10(s.layout) || s.layout == UnSet)) {
+                               pr_err("only near layout is supported with clustered raid10\n");
                                rv = 1;
                                break;
                        }
@@ -1631,7 +1678,10 @@ int main(int argc, char *argv[])
                                rv = 1;
                                break;
                        }
-                       sysfs_init(&sra, mdfd, NULL);
+                       if (sysfs_init(&sra, mdfd, NULL)) {
+                               rv = 1;
+                               break;
+                       }
                        if (array_size == MAX_SIZE)
                                err = sysfs_set_str(&sra, NULL, "array_size", "default");
                        else
@@ -1679,7 +1729,7 @@ int main(int argc, char *argv[])
                        rv = Grow_reshape(devlist->devname, mdfd,
                                          devlist->next,
                                          data_offset, &c, &s);
-               } else if (s.consistency_policy != UnSet) {
+               } else if (s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN) {
                        rv = Grow_consistency_policy(devlist->devname, mdfd, &c, &s);
                } else if (array_size == 0)
                        pr_err("no changes to --grow\n");
@@ -1726,6 +1776,10 @@ int main(int argc, char *argv[])
                autodetect();
                break;
        }
+       if (locked)
+               cluster_release_dlmlock();
+       if (mdfd > 0)
+               close(mdfd);
        exit(rv);
 }
 
@@ -1835,8 +1889,7 @@ static int misc_scan(char devmode, struct context *c)
                        if (members != member)
                                continue;
                        me = map_by_devnm(&map, e->devnm);
-                       if (me && me->path
-                           && strcmp(me->path, "/unknown") != 0)
+                       if (me && me->path && strcmp(me->path, "/unknown") != 0)
                                name = me->path;
                        if (name == NULL || stat(name, &stb) != 0)
                                name = get_md_name(e->devnm);
@@ -1849,8 +1902,10 @@ static int misc_scan(char devmode, struct context *c)
                        if (devmode == 'D')
                                rv |= Detail(name, c);
                        else
-                               rv |= WaitClean(name, -1, c->verbose);
+                               rv |= WaitClean(name, c->verbose);
                        put_md_name(name);
+                       map_free(map);
+                       map = NULL;
                }
        }
        free_mdstat(ms);
@@ -1908,7 +1963,7 @@ static int misc_list(struct mddev_dev *devlist,
        int rv = 0;
 
        for (dv = devlist; dv; dv = (rv & 16) ? NULL : dv->next) {
-               int mdfd;
+               int mdfd = -1;
 
                switch(dv->disposition) {
                case 'D':
@@ -1923,7 +1978,7 @@ static int misc_list(struct mddev_dev *devlist,
                                        rv |= Kill(dv->devname, NULL, c->force, v, 0);
                                        v = -1;
                                } while (rv == 0);
-                               rv &= ~2;
+                               rv &= ~4;
                        }
                        continue;
                case 'Q':
@@ -1940,7 +1995,7 @@ static int misc_list(struct mddev_dev *devlist,
                        rv |= Wait(dv->devname);
                        continue;
                case Waitclean:
-                       rv |= WaitClean(dv->devname, -1, c->verbose);
+                       rv |= WaitClean(dv->devname, c->verbose);
                        continue;
                case KillSubarray:
                        rv |= Kill_subarray(dv->devname, c->subarray, c->verbose);
@@ -1998,13 +2053,15 @@ int SetAction(char *dev, char *action)
 {
        int fd = open(dev, O_RDONLY);
        struct mdinfo mdi;
+       int retval;
+
        if (fd < 0) {
                pr_err("Couldn't open %s: %s\n", dev, strerror(errno));
                return 1;
        }
-       sysfs_init(&mdi, fd, NULL);
+       retval = sysfs_init(&mdi, fd, NULL);
        close(fd);
-       if (!mdi.sys_name[0]) {
+       if (retval) {
                pr_err("%s is no an md array\n", dev);
                return 1;
        }