]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - Detail.c
Release 3.2.6 - stability release
[thirdparty/mdadm.git] / Detail.c
index ba07c83da44ac90913850013194c7a0b89c18094..946b5e9be783150b9d713aebc03ee143d1d5f2b9 100644 (file)
--- a/Detail.c
+++ b/Detail.c
@@ -27,7 +27,7 @@
 #include       "md_u.h"
 #include       <dirent.h>
 
-int Detail(char *dev, int brief, int export, int test, char *homehost)
+int Detail(char *dev, int brief, int export, int test, char *homehost, char *prefer)
 {
        /*
         * Print out details for an md array by using
@@ -48,16 +48,17 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
        int is_26 = get_linux_version() >= 2006000;
        int is_rebuilding = 0;
        int failed = 0;
-       struct supertype *st = NULL;
+       struct supertype *st;
+       char *subarray = NULL;
        int max_disks = MD_SB_DISKS; /* just a default */
-       struct mdinfo info;
+       struct mdinfo *info = NULL;
        struct mdinfo *sra;
        char *member = NULL;
        char *container = NULL;
 
        int rv = test ? 4 : 1;
        int avail_disks = 0;
-       char *avail;
+       char *avail = NULL;
 
        if (fd < 0) {
                fprintf(stderr, Name ": cannot open %s: %s\n",
@@ -88,7 +89,7 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
                return rv;
        }
        sra = sysfs_read(fd, 0, GET_VERSION);
-       st = super_by_fd(fd);
+       st = super_by_fd(fd, &subarray);
 
        if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
                stb.st_rdev = 0;
@@ -97,23 +98,22 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
        if (st)
                max_disks = st->max_devs;
 
-       if (sra && is_subarray(sra->text_version) &&
-               strchr(sra->text_version+1, '/')) {
+       if (subarray) {
                /* This is a subarray of some container.
                 * We want the name of the container, and the member
                 */
-               char *s = strchr(sra->text_version+1, '/');
-               int dn;
-               *s++ = '\0';
-               member = s;
-               dn = devname2devnum(sra->text_version+1);
-               container = map_dev(dev2major(dn), dev2minor(dn), 1);
+               int dn = st->container_dev;
+
+               member = subarray;
+               container = map_dev_preferred(dev2major(dn), dev2minor(dn), 1, prefer);
        }
 
        /* try to load a superblock */
-       for (d= 0; d<max_disks; d++) {
+       if (st) for (d = 0; d < max_disks; d++) {
                mdu_disk_info_t disk;
                char *dv;
+               int fd2;
+               int err;
                disk.number = d;
                if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
                        continue;
@@ -121,38 +121,58 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
                    disk.major == 0 &&
                    disk.minor == 0)
                        continue;
-               if ((dv=map_dev(disk.major, disk.minor, 1))) {
-                       /* some formats (imsm) have free-floating-spares
-                        * with a uuid of uuid_match_any, they don't
-                        * have very good info about the rest of the
-                        * container, so keep searching when
-                        * encountering such a device.  Otherwise, stop
-                        * after the first successful call to
-                        * ->load_super.
-                        */
-                       int free_spare = memcmp(uuid_match_any,
-                                               info.uuid,
-                                               sizeof(uuid_match_any)) == 0;
-                       if ((!st || !st->sb || free_spare) &&
-                           (array.raid_disks == 0 || 
-                            (disk.state & (1<<MD_DISK_ACTIVE)))) {
-                               /* try to read the superblock from this device
-                                * to get more info
-                                */
-                               if (free_spare)
-                                       st->ss->free_super(st);
-                               int fd2 = dev_open(dv, O_RDONLY);
-                               if (fd2 >=0 && st &&
-                                   st->ss->load_super(st, fd2, NULL) == 0) {
-                                       st->ss->getinfo_super(st, &info);
-                                       if (array.raid_disks != 0 && /* container */
-                                           (info.array.ctime != array.ctime ||
-                                            info.array.level != array.level))
-                                               st->ss->free_super(st);
-                               }
-                               if (fd2 >= 0) close(fd2);
-                       }
+
+               if (array.raid_disks > 0 &&
+                   (disk.state & (1 << MD_DISK_ACTIVE)) == 0)
+                       continue;
+
+               dv = map_dev(disk.major, disk.minor, 1);
+               if (!dv)
+                       continue;
+
+               fd2 = dev_open(dv, O_RDONLY);
+               if (fd2 < 0)
+                       continue;
+
+               if (st->sb)
+                       st->ss->free_super(st);
+
+               err = st->ss->load_super(st, fd2, NULL);
+               close(fd2);
+               if (err)
+                       continue;
+               if (info)
+                       free(info);
+               if (subarray)
+                       info = st->ss->container_content(st, subarray);
+               else {
+                       info = malloc(sizeof(*info));
+                       st->ss->getinfo_super(st, info, NULL);
+               }
+               if (!info)
+                       continue;
+
+               if (array.raid_disks != 0 && /* container */
+                   (info->array.ctime != array.ctime ||
+                    info->array.level != array.level)) {
+                       st->ss->free_super(st);
+                       continue;
                }
+               /* some formats (imsm) have free-floating-spares
+                * with a uuid of uuid_zero, they don't
+                * have very good info about the rest of the
+                * container, so keep searching when
+                * encountering such a device.  Otherwise, stop
+                * after the first successful call to
+                * ->load_super.
+                */
+               if (memcmp(uuid_zero,
+                          info->uuid,
+                          sizeof(uuid_zero)) == 0) {
+                       st->ss->free_super(st);
+                       continue;
+               }
+               break;
        }
 
        /* Ok, we have some info to print... */
@@ -178,17 +198,19 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
                                       array.major_version, array.minor_version);
                }
                
-               if (st && st->sb) {
-                       struct mdinfo info;
+               if (st && st->sb && info) {
                        char nbuf[64];
                        struct map_ent *mp, *map = NULL;
-                       st->ss->getinfo_super(st, &info);
-                       fname_from_uuid(st, &info, nbuf, ':');
+
+                       fname_from_uuid(st, info, nbuf, ':');
                        printf("MD_UUID=%s\n", nbuf+5);
-                       mp = map_by_uuid(&map, info.uuid);
+                       mp = map_by_uuid(&map, info->uuid);
                        if (mp && mp->path &&
-                           strncmp(mp->path, "/dev/md/", 8) == 0)
-                               printf("MD_DEVNAME=%s\n", mp->path+8);
+                           strncmp(mp->path, "/dev/md/", 8) == 0) {
+                               printf("MD_DEVNAME=");
+                               print_escape(mp->path+8);
+                               putchar('\n');
+                       }
 
                        if (st->ss->export_detail_super)
                                st->ss->export_detail_super(st);
@@ -201,12 +223,51 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
                                printf("MD_UUID=%s\n", nbuf+5);
                        }
                        if (mp && mp->path &&
-                           strncmp(mp->path, "/dev/md/", 8) == 0)
-                               printf("MD_DEVNAME=%s\n", mp->path+8);
+                           strncmp(mp->path, "/dev/md/", 8) == 0) {
+                               printf("MD_DEVNAME=");
+                               print_escape(mp->path+8);
+                               putchar('\n');
+                       }
                }
                goto out;
        }
 
+       disks = malloc(max_disks * sizeof(mdu_disk_info_t));
+       for (d=0; d<max_disks; 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;
+       for (d=0; d < max_disks; d++) {
+               mdu_disk_info_t disk;
+               disk.number = d;
+               if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
+                       if (d < array.raid_disks)
+                               fprintf(stderr, Name ": cannot get device detail for device %d: %s\n",
+                                       d, strerror(errno));
+                       continue;
+               }
+               if (disk.major == 0 && disk.minor == 0)
+                       continue;
+               if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks)
+                       disks[disk.raid_disk] = disk;
+               else if (next < max_disks)
+                       disks[next++] = disk;
+       }
+
+       avail = calloc(array.raid_disks, 1);
+
+       for (d= 0; d < array.raid_disks; d++) {
+               mdu_disk_info_t disk = disks[d];
+
+               if ((disk.state & (1<<MD_DISK_SYNC))) {
+                       avail_disks ++;
+                       avail[d] = 1;
+               }
+       }
+
        if (brief) {
                mdu_bitmap_file_t bmf;
                printf("ARRAY %s", dev);
@@ -242,7 +303,7 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
                struct mdstat_ent *ms = mdstat_read(0, 0);
                struct mdstat_ent *e;
                int devnum = array.md_minor;
-               if (major(stb.st_rdev) == get_mdp_major())
+               if (major(stb.st_rdev) == (unsigned)get_mdp_major())
                        devnum = -1 - devnum;
 
                for (e=ms; e; e=e->next)
@@ -306,13 +367,25 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
                atime = array.utime;
                if (atime)
                        printf("    Update Time : %.24s\n", ctime(&atime));
-               if (array.raid_disks)
-                       printf("          State : %s%s%s%s\n",
-                              (array.state&(1<<MD_SB_CLEAN))?"clean":"active",
-                              array.active_disks < array.raid_disks? ", degraded":"",
-                              (!e || e->percent < 0) ? "" :
-                              (e->resync) ? ", resyncing": ", recovering",
-                              larray_size ? "": ", Not Started");
+               if (array.raid_disks) {
+                       static char *sync_action[] = {", recovering",", resyncing",", reshaping",", checking"};
+                       char *st;
+                       if (avail_disks == array.raid_disks)
+                               st = "";
+                       else if (!enough(array.level, array.raid_disks,
+                                        array.layout, 1, avail))
+                               st = ", FAILED";
+                       else
+                               st = ", degraded";
+
+                       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)": "");
+               }
                if (array.raid_disks)
                        printf(" Active Devices : %d\n", array.active_disks);
                printf("Working Devices : %d\n", array.working_disks);
@@ -351,51 +424,46 @@ int Detail(char *dev, int brief, int export, int test, char *homehost)
                }
 
                if (e && e->percent >= 0) {
-                       printf(" Re%s Status : %d%% complete\n",
-                              (st && st->sb && info.reshape_active)?
-                                 "shape":"build",
-                              e->percent);
+                       static char *sync_action[] = {"Rebuild", "Resync", "Reshape", "Check"};
+                       printf(" %7s Status : %d%% complete\n", sync_action[e->resync], e->percent);
                        is_rebuilding = 1;
                }
                free_mdstat(ms);
 
-               if (st->sb && info.reshape_active) {
+               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,
-                              human_size(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",
-                                      info.delta_disks, array.raid_disks - info.delta_disks, array.raid_disks);
-                       if (info.delta_disks < 0)
+                       if (info->delta_disks != 0)
                                printf("  Delta Devices : %d, (%d->%d)\n",
-                                      info.delta_disks, array.raid_disks, array.raid_disks + info.delta_disks);
-                       if (info.new_level != array.level) {
-                               char *c = map_num(pers, info.new_level);
+                                      info->delta_disks, array.raid_disks - info->delta_disks, array.raid_disks);
+                       if (info->new_level != array.level) {
+                               char *c = map_num(pers, info->new_level);
                                printf("      New Level : %s\n", c?c:"-unknown-");
                        }
-                       if (info.new_level != array.level ||
-                           info.new_layout != array.layout) {
-                               if (info.new_level == 5) {
-                                       char *c = map_num(r5layout, info.new_layout);
+                       if (info->new_level != array.level ||
+                           info->new_layout != array.layout) {
+                               if (info->new_level == 5) {
+                                       char *c = map_num(r5layout, info->new_layout);
                                        printf("     New Layout : %s\n",
                                               c?c:"-unknown-");
                                }
-                               if (info.new_level == 6) {
-                                       char *c = map_num(r6layout, info.new_layout);
+                               if (info->new_level == 6) {
+                                       char *c = map_num(r6layout, info->new_layout);
                                        printf("     New Layout : %s\n",
                                               c?c:"-unknown-");
                                }
-                               if (info.new_level == 10) {
+                               if (info->new_level == 10) {
                                        printf("     New Layout : near=%d, %s=%d\n",
-                                              info.new_layout&255,
-                                              (info.new_layout&0x10000)?"offset":"far",
-                                              (info.new_layout>>8)&255);
+                                              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);
+                       if (info->new_chunk != array.chunk_size)
+                               printf("  New Chunksize : %dK\n", info->new_chunk/1024);
                        printf("\n");
                } else if (e && e->percent >= 0)
                        printf("\n");
@@ -424,13 +492,14 @@ This is pretty boring
                                if (load_sys(path, vbuf) < 0)
                                        continue;
                                if (strncmp(vbuf, "external:", 9) != 0 ||
-                                   !is_subarray(sra->sys_name+9) ||
+                                   !is_subarray(vbuf+9) ||
                                    strncmp(vbuf+10, sra->sys_name, nlen) != 0 ||
                                    vbuf[10+nlen] != '/')
                                        continue;
                                dn = devname2devnum(de->d_name);
-                               printf(" %s", map_dev(dev2major(dn),
-                                                     dev2minor(dn), 1));
+                               printf(" %s", map_dev_preferred(
+                                              dev2major(dn),
+                                              dev2minor(dn), 1, prefer));
                        }
                        if (dir)
                                closedir(dir);
@@ -442,32 +511,8 @@ This is pretty boring
                else
                        printf("    Number   Major   Minor   RaidDevice\n");
        }
-       disks = malloc(max_disks * sizeof(mdu_disk_info_t));
-       for (d=0; d<max_disks; d++) {
-               disks[d].state = (1<<MD_DISK_REMOVED);
-               disks[d].major = disks[d].minor = 0;
-               disks[d].number = disks[d].raid_disk = d;
-       }
+       free(info);
 
-       next = array.raid_disks;
-       for (d=0; d < max_disks; d++) {
-               mdu_disk_info_t disk;
-               disk.number = d;
-               if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
-                       if (d < array.raid_disks)
-                               fprintf(stderr, Name ": cannot get device detail for device %d: %s\n",
-                                       d, strerror(errno));
-                       continue;
-               }
-               if (disk.major == 0 && disk.minor == 0)
-                       continue;
-               if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks)
-                       disks[disk.raid_disk] = disk;
-               else if (next < max_disks)
-                       disks[next++] = disk;
-       }
-
-       avail = calloc(array.raid_disks, 1);
        for (d= 0; d < max_disks; d++) {
                char *dv;
                mdu_disk_info_t disk = disks[d];
@@ -498,7 +543,8 @@ 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_ACTIVE)|(1<<MD_DISK_SYNC)|(1<<MD_DISK_REMOVED)))
+                            ((1<<MD_DISK_ACTIVE)|(1<<MD_DISK_SYNC)
+                             |(1<<MD_DISK_REMOVED)|(1<<MD_DISK_FAULTY)))
                            == 0) {
                                printf(" spare");
                                if (is_26) {
@@ -520,12 +566,7 @@ This is pretty boring
                if (test && d < array.raid_disks
                    && !(disk.state & (1<<MD_DISK_SYNC)))
                        rv |= 1;
-               if (d < array.raid_disks
-                   && (disk.state & (1<<MD_DISK_SYNC))) {
-                       avail_disks ++;
-                       avail[d] = 1;
-               }
-               if ((dv=map_dev(disk.major, disk.minor, 0))) {
+               if ((dv=map_dev_preferred(disk.major, disk.minor, 0, prefer))) {
                        if (brief) {
                                if (devices) {
                                        devices = realloc(devices,
@@ -541,18 +582,22 @@ This is pretty boring
        if (spares && brief && array.raid_disks) printf(" spares=%d", spares);
        if (brief && st && st->sb)
                st->ss->brief_detail_super(st);
-       st->ss->free_super(st);
+       if (st)
+               st->ss->free_super(st);
 
        if (brief > 1 && devices) printf("\n   devices=%s", devices);
        if (brief) printf("\n");
        if (test &&
            !enough(array.level, array.raid_disks, array.layout,
-                   1, avail, avail_disks))
+                   1, avail))
                rv = 2;
 
        free(disks);
 out:
        close(fd);
+       free(subarray);
+       free(avail);
+       sysfs_free(sra);
        return rv;
 }