]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - Detail.c
util: Introduce md_get_array_info()
[thirdparty/mdadm.git] / Detail.c
index 05e645c1adfed5462b9d567ee5496af46fed8597..d7e886a77bc1e43309e2a03424b7744db744e0b2 100644 (file)
--- a/Detail.c
+++ b/Detail.c
@@ -1,7 +1,7 @@
 /*
  * 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
@@ -32,6 +32,22 @@ 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)
 {
        /*
@@ -91,9 +107,17 @@ int Detail(char *dev, struct context *c)
        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) {
+       if (md_get_array_info(fd, &array) == 0) {
                inactive = 0;
-       } else if (errno == ENODEV) {
+       } else if (errno == ENODEV && sra) {
+               if (sra->array.major_version == -1 &&
+                   sra->array.minor_version == -1 &&
+                   sra->devs == NULL) {
+                       pr_err("Array associated with md device %s does not exist.\n", dev);
+                       close(fd);
+                       sysfs_free(sra);
+                       return rv;
+               }
                array = sra->array;
                inactive = 1;
        } else {
@@ -114,7 +138,7 @@ int Detail(char *dev, struct context *c)
                /* This is a subarray of some container.
                 * We want the name of the container, and the member
                 */
-               int devid = devnm2devid(st->container_devnm);
+               dev_t devid = devnm2devid(st->container_devnm);
                int cfd, err;
 
                member = subarray;
@@ -279,11 +303,12 @@ int Detail(char *dev, struct context *c)
                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;
+               disks[d].number = -1;
+               disks[d].raid_disk = d/2;
        }
 
        next = array.raid_disks*2;
@@ -306,12 +331,14 @@ int Detail(char *dev, struct context *c)
                if (disk.major == 0 && disk.minor == 0)
                        continue;
                if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks
-                   && disks[disk.raid_disk*2].state == (1<<MD_DISK_REMOVED))
+                   && disks[disk.raid_disk*2].state == (1<<MD_DISK_REMOVED)
+                   && ((disk.state & (1<<MD_DISK_JOURNAL)) == 0))
                        disks[disk.raid_disk*2] = disk;
                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].state == (1<<MD_DISK_REMOVED)
+                        && !(disk.state & (1<<MD_DISK_JOURNAL)))
                        disks[disk.raid_disk*2+1] = disk;
-               else if (next < max_disks)
+               else if (next < max_disks*2)
                        disks[next++] = disk;
        }
 
@@ -323,7 +350,8 @@ int Detail(char *dev, struct context *c)
                    (disks[d*2+1].state & (1<<MD_DISK_SYNC))) {
                        avail_disks ++;
                        avail[d] = 1;
-               }
+               } else
+                       rv |= !! c->test;
        }
 
        if (c->brief) {
@@ -374,24 +402,25 @@ int Detail(char *dev, struct context *c)
                printf("%s:\n", dev);
 
                if (container)
-                       printf("      Container : %s, member %s\n", container, member);
+                       printf("         Container : %s, member %s\n", container,
+                              member);
                else {
                if (sra && sra->array.major_version < 0)
-                       printf("        Version : %s\n", sra->text_version);
+                       printf("           Version : %s\n", sra->text_version);
                else
-                       printf("        Version : %d.%d\n",
+                       printf("           Version : %d.%d\n",
                               array.major_version, array.minor_version);
                }
 
                atime = array.ctime;
                if (atime)
-                       printf("  Creation Time : %.24s\n", ctime(&atime));
+                       printf("     Creation Time : %.24s\n", ctime(&atime));
                if (array.raid_disks == 0 && external)
                        str = "container";
                if (str)
-                       printf("     Raid Level : %s\n", str);
+                       printf("        Raid Level : %s\n", str);
                if (larray_size)
-                       printf("     Array Size : %llu%s\n", (larray_size>>10),
+                       printf("        Array Size : %llu%s\n", (larray_size>>10),
                               human_size(larray_size));
                if (array.level >= 1) {
                        if (sra)
@@ -400,37 +429,38 @@ int Detail(char *dev, struct context *c)
                            (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
                                unsigned long long dsize = get_component_size(fd);
                                if (dsize > 0)
-                                       printf("  Used Dev Size : %llu%s\n",
+                                       printf("     Used Dev Size : %llu%s\n",
                                               dsize/2,
                                         human_size((long long)dsize<<9));
                                else
-                                       printf("  Used Dev Size : unknown\n");
+                                       printf("     Used Dev Size : unknown\n");
                        } else
-                               printf("  Used Dev Size : %d%s\n", array.size,
-                                      human_size((long long)array.size<<10));
+                               printf("     Used Dev Size : %lu%s\n",
+                                      (unsigned long)array.size,
+                                      human_size((unsigned long long)array.size<<10));
                }
                if (array.raid_disks)
-                       printf("   Raid Devices : %d\n", array.raid_disks);
-               printf("  Total Devices : %d\n", array.nr_disks);
+                       printf("      Raid Devices : %d\n", array.raid_disks);
+               printf("     Total Devices : %d\n", array.nr_disks);
                if (!container &&
                    ((sra == NULL && array.major_version == 0) ||
                     (sra && sra->array.major_version == 0)))
-                       printf("Preferred Minor : %d\n", array.md_minor);
+                       printf("   Preferred Minor : %d\n", array.md_minor);
                if (sra == NULL || sra->array.major_version >= 0)
-                       printf("    Persistence : Superblock is %spersistent\n",
+                       printf("       Persistence : Superblock is %spersistent\n",
                               array.not_persistent?"not ":"");
                printf("\n");
                /* Only try GET_BITMAP_FILE for 0.90.01 and later */
                if (vers >= 9001 &&
                    ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
                    bmf.pathname[0]) {
-                       printf("  Intent Bitmap : %s\n", bmf.pathname);
+                       printf("     Intent Bitmap : %s\n", bmf.pathname);
                        printf("\n");
                } else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
-                       printf("  Intent Bitmap : Internal\n\n");
+                       printf("     Intent Bitmap : Internal\n\n");
                atime = array.utime;
                if (atime)
-                       printf("    Update Time : %.24s\n", ctime(&atime));
+                       printf("       Update Time : %.24s\n", ctime(&atime));
                if (array.raid_disks) {
                        static char *sync_action[] = {
                                ", recovering",  ", resyncing",
@@ -444,35 +474,35 @@ int Detail(char *dev, struct context *c)
                        else
                                st = ", degraded";
 
-                       printf("          State : %s%s%s%s%s%s \n",
+                       printf("             State : %s%s%s%s%s%s \n",
                               (array.state&(1<<MD_SB_CLEAN))?"clean":"active", st,
                               (!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");
+                       printf("             State : inactive\n");
                }
                if (array.raid_disks)
-                       printf(" Active Devices : %d\n", array.active_disks);
+                       printf("    Active Devices : %d\n", array.active_disks);
                if (array.working_disks > 0)
-                       printf("Working Devices : %d\n", array.working_disks);
+                       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);
+                       printf("    Failed Devices : %d\n", array.failed_disks);
+                       printf("     Spare Devices : %d\n", array.spare_disks);
                }
                printf("\n");
                if (array.level == 5) {
                        str = map_num(r5layout, array.layout);
-                       printf("         Layout : %s\n", str?str:"-unknown-");
+                       printf("            Layout : %s\n", str?str:"-unknown-");
                }
                if (array.level == 6) {
                        str = map_num(r6layout, array.layout);
-                       printf("         Layout : %s\n", str?str:"-unknown-");
+                       printf("            Layout : %s\n", str?str:"-unknown-");
                }
                if (array.level == 10) {
-                       printf("         Layout :");
+                       printf("            Layout :");
                        print_r10_layout(array.layout);
                        printf("\n");
                }
@@ -483,20 +513,35 @@ int Detail(char *dev, struct context *c)
                case 10:
                case 6:
                        if (array.chunk_size)
-                               printf("     Chunk Size : %dK\n\n",
+                               printf("        Chunk Size : %dK\n\n",
                                       array.chunk_size/1024);
                        break;
                case -1:
-                       printf("       Rounding : %dK\n\n", array.chunk_size/1024);
+                       printf("          Rounding : %dK\n\n",
+                              array.chunk_size/1024);
                        break;
                default: break;
                }
 
+               if (array.raid_disks) {
+                       struct mdinfo *mdi = sysfs_read(fd, NULL,
+                                                       GET_CONSISTENCY_POLICY);
+                       if (mdi) {
+                               char *policy = map_num(consistency_policies,
+                                                      mdi->consistency_policy);
+                               sysfs_free(mdi);
+                               if (policy)
+                                       printf("Consistency Policy : %s\n\n",
+                                              policy);
+                       }
+               }
+
                if (e && e->percent >= 0) {
                        static char *sync_action[] = {
                                "Rebuild", "Resync",
                                "Reshape", "Check"};
-                       printf(" %7s Status : %d%% complete\n", sync_action[e->resync], e->percent);
+                       printf("    %7s Status : %d%% complete\n",
+                              sync_action[e->resync], e->percent);
                        is_rebuilding = 1;
                }
                free_mdstat(ms);
@@ -504,39 +549,41 @@ int Detail(char *dev, struct context *c)
                if ((st && st->sb) && (info && info->reshape_active)) {
 #if 0
 This is pretty boring
-                       printf("  Reshape pos'n : %llu%s\n", (unsigned long long) info->reshape_progress<<9,
+                       printf("     Reshape pos'n : %llu%s\n",
+                              (unsigned long long) info->reshape_progress<<9,
                               human_size((unsigned long long)info->reshape_progress<<9));
 #endif
                        if (info->delta_disks != 0)
-                               printf("  Delta Devices : %d, (%d->%d)\n",
+                               printf("     Delta Devices : %d, (%d->%d)\n",
                                       info->delta_disks,
                                       array.raid_disks - info->delta_disks,
                                       array.raid_disks);
                        if (info->new_level != array.level) {
                                str = map_num(pers, info->new_level);
-                               printf("      New Level : %s\n", str?str:"-unknown-");
+                               printf("         New Level : %s\n", str?str:"-unknown-");
                        }
                        if (info->new_level != array.level ||
                            info->new_layout != array.layout) {
                                if (info->new_level == 5) {
                                        str = map_num(r5layout, info->new_layout);
-                                       printf("     New Layout : %s\n",
+                                       printf("        New Layout : %s\n",
                                               str?str:"-unknown-");
                                }
                                if (info->new_level == 6) {
                                        str = map_num(r6layout, info->new_layout);
-                                       printf("     New Layout : %s\n",
+                                       printf("        New Layout : %s\n",
                                               str?str:"-unknown-");
                                }
                                if (info->new_level == 10) {
-                                       printf("     New Layout : near=%d, %s=%d\n",
+                                       printf("        New Layout : near=%d, %s=%d\n",
                                               info->new_layout&255,
                                               (info->new_layout&0x10000)?"offset":"far",
                                               (info->new_layout>>8)&255);
                                }
                        }
                        if (info->new_chunk != array.chunk_size)
-                               printf("  New Chunksize : %dK\n", info->new_chunk/1024);
+                               printf("     New Chunksize : %dK\n",
+                                      info->new_chunk/1024);
                        printf("\n");
                } else if (e && e->percent >= 0)
                        printf("\n");
@@ -551,18 +598,18 @@ This is pretty boring
                        DIR *dir = opendir("/sys/block");
                        struct dirent *de;
 
-                       printf("  Member Arrays :");
+                       printf("     Member Arrays :");
 
                        while (dir && (de = readdir(dir)) != NULL) {
-                               char path[200];
+                               char path[287];
                                char vbuf[1024];
                                int nlen = strlen(sra->sys_name);
-                               int devid;
+                               dev_t devid;
                                if (de->d_name[0] == '.')
                                        continue;
                                sprintf(path, "/sys/block/%s/md/metadata_version",
                                        de->d_name);
-                               if (load_sys(path, vbuf) < 0)
+                               if (load_sys(path, vbuf, sizeof(vbuf)) < 0)
                                        continue;
                                if (strncmp(vbuf, "external:", 9) != 0 ||
                                    !is_subarray(vbuf+9) ||
@@ -586,7 +633,7 @@ This is pretty boring
        }
        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];
 
@@ -600,12 +647,15 @@ This is pretty boring
                        continue;
                if (!c->brief) {
                        if (d == array.raid_disks*2) printf("\n");
-                       if (disk.number < 0)
+                       if (disk.number < 0 && disk.raid_disk < 0)
                                printf("       -   %5d    %5d        -     ",
                                       disk.major, disk.minor);
-                       else if (disk.raid_disk < 0)
+                       else if (disk.raid_disk < 0 || disk.state & (1<<MD_DISK_JOURNAL))
                                printf("   %5d   %5d    %5d        -     ",
                                       disk.number, disk.major, disk.minor);
+                       else if (disk.number < 0)
+                               printf("       -   %5d    %5d    %5d     ",
+                                      disk.major, disk.minor, disk.raid_disk);
                        else
                                printf("   %5d   %5d    %5d    %5d     ",
                                       disk.number, disk.major, disk.minor, disk.raid_disk);
@@ -634,9 +684,11 @@ This is pretty boring
                        }
                        if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed");
                        if (disk.state & (1<<MD_DISK_WRITEMOSTLY)) printf(" writemostly");
+                       if (disk.state & (1<<MD_DISK_FAILFAST)) printf(" failfast");
+                       if (disk.state & (1<<MD_DISK_JOURNAL)) printf(" journal");
                        if ((disk.state &
                             ((1<<MD_DISK_ACTIVE)|(1<<MD_DISK_SYNC)
-                             |(1<<MD_DISK_REMOVED)|(1<<MD_DISK_FAULTY)))
+                             |(1<<MD_DISK_REMOVED)|(1<<MD_DISK_FAULTY)|(1<<MD_DISK_JOURNAL)))
                            == 0) {
                                printf(" spare");
                                if (is_26) {
@@ -655,22 +707,13 @@ This is pretty boring
                        }
                }
                if (disk.state == 0) spares++;
-               if (c->test && d < array.raid_disks
-                   && !(disk.state & (1<<MD_DISK_SYNC)))
-                       rv |= 1;
                dv=map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
                if (dv != NULL) {
-                       if (c->brief) {
-                               if (n_devices + 1 >= max_devices) {
-                                       max_devices += 16;
-                                       devices = xrealloc(devices, max_devices
-                                                          *sizeof(*devices));
-                                       if (!devices)
-                                               goto out;
-                               };
-                               devices[n_devices] = xstrdup(dv);
-                               n_devices++;
-                       } else
+                       if (c->brief)
+                               n_devices = add_device(dv, &devices,
+                                                      &max_devices,
+                                                      n_devices);
+                       else
                                printf("   %s", dv);
                }
                if (!c->brief) printf("\n");