]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - mdadm.c
Sort mdstat entries so that composites are well-ordered.
[thirdparty/mdadm.git] / mdadm.c
diff --git a/mdadm.c b/mdadm.c
index 45c59b379d251fcb01a4e67469bdb172dc35fb3c..7b6c3d01039c3d463494fb7f19131cf1596e64f9 100644 (file)
--- a/mdadm.c
+++ b/mdadm.c
@@ -26,7 +26,7 @@
  *           Sydney, 2052
  *           Australia
  *
- *    Additions for bitmap and async RAID options, Copyright (C) 2003-2004, 
+ *    Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004, 
  *    Paul Clements, SteelEye Technology, Inc.
  */
 
@@ -40,13 +40,12 @@ int main(int argc, char *argv[])
        int mode = 0;
        int opt;
        int option_index;
-       char *help_text;
        char *c;
        int rv;
        int i;
 
        int chunk = 0;
-       int size = -1;
+       long long size = -1;
        int level = UnSet;
        int layout = UnSet;
        int raiddisks = 0;
@@ -60,6 +59,7 @@ int main(int argc, char *argv[])
        char devmode = 0;
        int runstop = 0;
        int readonly = 0;
+       int write_behind = 0;
        int bitmap_fd = -1;
        char *bitmap_file = NULL;
        int bitmap_chunk = UnSet;
@@ -69,6 +69,7 @@ int main(int argc, char *argv[])
        mddev_dev_t dv;
        int devs_found = 0;
        int verbose = 0;
+       int quiet = 0;
        int brief = 0;
        int force = 0;
        int test = 0;
@@ -89,8 +90,13 @@ int main(int argc, char *argv[])
        char *pidfile = NULL;
        int oneshot = 0;
        struct supertype *ss = NULL;
+       int writemostly = 0;
+       int re_add = 0;
+       char *shortopt = short_options;
+       int dosyslog = 0;
 
        int copies;
+       int print_help = 0;
 
        int mdfd = -1;
 
@@ -105,31 +111,22 @@ int main(int argc, char *argv[])
        ident.autof = 0;
        ident.st = NULL;
        ident.bitmap_fd = -1;
+       ident.name[0] = 0;
 
        while ((option_index = -1) ,
               (opt=getopt_long(argc, argv,
-                               short_options, long_options,
+                               shortopt, long_options,
                                &option_index)) != -1) {
                int newmode = mode;
-               /* firstly, so mode-independant options */
+               /* firstly, some mode-independant options */
                switch(opt) {
                case 'h':
-                       help_text = Help;
                        if (option_index > 0 && 
                            strcmp(long_options[option_index].name, "help-options")==0)
-                               help_text = OptionHelp;
+                               print_help = 2;
                        else
-                               switch (mode) {
-                               case ASSEMBLE : help_text = Help_assemble; break;
-                               case BUILD    : help_text = Help_build; break;
-                               case CREATE   : help_text = Help_create; break;
-                               case MANAGE   : help_text = Help_manage; break;
-                               case MISC     : help_text = Help_misc; break;
-                               case MONITOR  : help_text = Help_monitor; break;
-                               case GROW     : help_text = Help_grow; break;
-                               }
-                       fputs(help_text,stderr);
-                       exit(0);
+                               print_help = 1;
+                       continue;
 
                case 'V':
                        fputs(Version, stderr);
@@ -138,10 +135,17 @@ int main(int argc, char *argv[])
                case 'v': verbose++;
                        continue;
 
+               case 'q': quiet++;
+                       continue;
+
                case 'b':
                        if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW)
                                break; /* b means bitmap */
                        brief = 1;
+                       if (optarg) {
+                               fprintf(stderr, Name ": -b cannot have any extra immediately after it, sorry.\n");
+                               exit(2);
+                       }
                        continue;
 
                case ':':
@@ -156,18 +160,24 @@ int main(int argc, char *argv[])
 
                switch(opt) {
                case '@': /* just incase they say --manage */
-                       newmode = MANAGE; break;
+                       newmode = MANAGE;
+                       shortopt = short_bitmap_auto_options;
+                       break;
                case 'a':
                case 'r':
                case 'f':
-                       if (!mode) newmode = MANAGE; 
+               case 6: /* re-add */
+                       if (!mode) {
+                               newmode = MANAGE;
+                               shortopt = short_bitmap_auto_options;
+                       }
                        break;
 
-               case 'A': newmode = ASSEMBLE; break;
-               case 'B': newmode = BUILD; break;
-               case 'C': newmode = CREATE; break;
+               case 'A': newmode = ASSEMBLE; shortopt = short_bitmap_auto_options; break;
+               case 'B': newmode = BUILD; shortopt = short_bitmap_auto_options; break;
+               case 'C': newmode = CREATE; shortopt = short_bitmap_auto_options; break;
                case 'F': newmode = MONITOR;break;
-               case 'G': newmode = GROW; break;
+               case 'G': newmode = GROW; shortopt = short_bitmap_auto_options; break;
 
                case '#':
                case 'D':
@@ -214,6 +224,8 @@ int main(int argc, char *argv[])
                                        }
                                        dv->devname = optarg;
                                        dv->disposition = devmode;
+                                       dv->writemostly = writemostly;
+                                       dv->re_add = re_add;
                                        dv->next = NULL;
                                        *devlistend = dv;
                                        devlistend = &dv->next;
@@ -262,6 +274,8 @@ int main(int argc, char *argv[])
                        }
                        dv->devname = optarg;
                        dv->disposition = devmode;
+                       dv->writemostly = writemostly;
+                       dv->re_add = re_add;
                        dv->next = NULL;
                        *devlistend = dv;
                        devlistend = &dv->next;
@@ -306,6 +320,13 @@ int main(int argc, char *argv[])
                        max_disks = ss->max_devs;
                        continue;
 
+               case O(MANAGE,'W'):
+               case O(BUILD,'W'):
+               case O(CREATE,'W'):
+                       /* set write-mostly for following devices */
+                       writemostly = 1;
+                       continue;
+
                case O(GROW,'z'):
                case O(CREATE,'z'): /* size */
                        if (size >= 0) {
@@ -316,7 +337,7 @@ int main(int argc, char *argv[])
                        if (strcmp(optarg, "max")==0)
                                size = 0;
                        else {
-                               size = strtol(optarg, &c, 10);
+                               size = strtoll(optarg, &c, 10);
                                if (!optarg[0] || *c || size < 4) {
                                        fprintf(stderr, Name ": invalid size: %s\n",
                                                optarg);
@@ -515,6 +536,21 @@ int main(int argc, char *argv[])
                        }
                        continue;
 
+               case O(CREATE,'N'):
+               case O(ASSEMBLE,'N'):
+                       if (ident.name[0]) {
+                               fprintf(stderr, Name ": name cannot be set twice.   "
+                                       "Second value %s.\n", optarg);
+                               exit(2);
+                       }
+                       if (strlen(optarg) > 32) {
+                               fprintf(stderr, Name ": name '%s' is too long, 32 chars max.\n",
+                                       optarg);
+                               exit(2);
+                       }
+                       strcpy(ident.name, optarg);
+                       continue;
+
                case O(ASSEMBLE,'m'): /* super-minor for array */
                        if (ident.super_minor != UnSet) {
                                fprintf(stderr, Name ": super-minor cannot be set twice.  "
@@ -547,7 +583,23 @@ int main(int argc, char *argv[])
                                continue;
                        if (strcmp(update, "resync")==0)
                                continue;
-                       fprintf(stderr, Name ": '--update %s' invalid.  Only 'sparc2.2', 'super-minor', 'resync' or 'summaries' supported\n",update);
+                       if (strcmp(update, "uuid")==0)
+                               continue;
+                       if (strcmp(update, "byteorder")==0) {
+                               if (ss) {
+                                       fprintf(stderr, Name ": must not set metadata type with --update=byteorder.\n");
+                                       exit(2);
+                               }
+                               for(i=0; !ss && superlist[i]; i++) 
+                                       ss = superlist[i]->match_metadata_desc("0.swap");
+                               if (!ss) {
+                                       fprintf(stderr, Name ": INTERNAL ERROR cannot find 0.swap\n");
+                                       exit(2);
+                               }
+
+                               continue;
+                       }
+                       fprintf(stderr, Name ": '--update %s' invalid.  Only 'sparc2.2', 'super-minor', 'uuid', 'resync' or 'summaries' supported\n",update);
                        exit(2);
 
                case O(ASSEMBLE,'c'): /* config file */
@@ -615,6 +667,10 @@ int main(int argc, char *argv[])
                case O(MONITOR,'t'): /* test */
                        test = 1;
                        continue;
+               case O(MONITOR,'y'): /* log messages to syslog */
+                       openlog("mdadm", 0, SYSLOG_FACILITY);
+                       dosyslog = 1;
+                       continue;
 
                        /* now the general management options.  Some are applicable
                         * to other modes. None have arguments.
@@ -622,6 +678,11 @@ int main(int argc, char *argv[])
                case O(GROW,'a'):
                case O(MANAGE,'a'): /* add a drive */
                        devmode = 'a';
+                       re_add = 0;
+                       continue;
+               case O(MANAGE,6):
+                       devmode = 'a';
+                       re_add = 1;
                        continue;
                case O(MANAGE,'r'): /* remove a drive */
                        devmode = 'r';
@@ -727,6 +788,19 @@ int main(int argc, char *argv[])
                        /* convert K to B, chunk of 0K means 512B */
                        bitmap_chunk = bitmap_chunk ? bitmap_chunk * 1024 : 512;
                        continue;
+
+               case O(BUILD, 5):
+               case O(CREATE, 5): /* write-behind mode */
+                       write_behind = DEFAULT_MAX_WRITE_BEHIND;
+                       if (optarg) {
+                               write_behind = strtol(optarg, &c, 10);
+                               if (write_behind < 0 || *c ||
+                                   write_behind > 16383) {
+                                       fprintf(stderr, Name ": Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg);
+                                       exit(2);
+                               }
+                       }
+                       continue;
                }
                /* We have now processed all the valid options. Anything else is
                 * an error
@@ -737,6 +811,24 @@ int main(int argc, char *argv[])
 
        }
 
+       if (print_help) {
+               char *help_text = Help;
+               if (print_help == 2)
+                       help_text = OptionHelp;
+               else
+                       switch (mode) {
+                       case ASSEMBLE : help_text = Help_assemble; break;
+                       case BUILD    : help_text = Help_build; break;
+                       case CREATE   : help_text = Help_create; break;
+                       case MANAGE   : help_text = Help_manage; break;
+                       case MISC     : help_text = Help_misc; break;
+                       case MONITOR  : help_text = Help_monitor; break;
+                       case GROW     : help_text = Help_grow; break;
+                       }
+               fputs(help_text,stderr);
+               exit(0);
+       }
+
        if (!mode && devs_found) {
                mode = MISC;
                devmode = 'Q';
@@ -806,7 +898,7 @@ int main(int argc, char *argv[])
                        rv = Manage_ro(devlist->devname, mdfd, readonly);
                if (!rv && devs_found>1)
                        rv = Manage_subdevs(devlist->devname, mdfd,
-                                           devlist->next);
+                                           devlist->next, verbose-quiet);
                if (!rv && readonly < 0)
                        rv = Manage_ro(devlist->devname, mdfd, readonly);
                if (!rv && runstop)
@@ -814,7 +906,7 @@ int main(int argc, char *argv[])
                break;
        case ASSEMBLE:
                if (devs_found == 1 && ident.uuid_set == 0 &&
-                   ident.super_minor == UnSet && !scan ) {
+                   ident.super_minor == UnSet && ident.name[0] == 0 && !scan ) {
                        /* Only a device has been given, so get details from config file */
                        mddev_ident_t array_ident = conf_get_ident(configfile, devlist->devname);
                        if (array_ident == NULL) {
@@ -829,14 +921,14 @@ int main(int argc, char *argv[])
                                else {
                                        rv |= Assemble(ss, devlist->devname, mdfd, array_ident, configfile,
                                                       NULL,
-                                                      readonly, runstop, update, verbose, force);
+                                                      readonly, runstop, update, verbose-quiet, force);
                                        close(mdfd);
                                }
                        }
                } else if (!scan)
                        rv = Assemble(ss, devlist->devname, mdfd, &ident, configfile,
                                      devlist->next,
-                                     readonly, runstop, update, verbose, force);
+                                     readonly, runstop, update, verbose-quiet, force);
                else if (devs_found>0) {
                        if (update && devs_found > 1) {
                                fprintf(stderr, Name ": can only update a single array at a time\n");
@@ -858,7 +950,7 @@ int main(int argc, char *argv[])
                                }
                                rv |= Assemble(ss, dv->devname, mdfd, array_ident, configfile,
                                               NULL,
-                                              readonly, runstop, update, verbose, force);
+                                              readonly, runstop, update, verbose-quiet, force);
                                close(mdfd);
                        }
                } else {
@@ -882,7 +974,7 @@ int main(int argc, char *argv[])
                                                rv |= Assemble(ss, array_list->devname, mdfd,
                                                               array_list, configfile,
                                                               NULL,
-                                                              readonly, runstop, NULL, verbose, force);
+                                                              readonly, runstop, NULL, verbose-quiet, force);
                                        close(mdfd);
                                }
                }
@@ -890,42 +982,35 @@ int main(int argc, char *argv[])
        case BUILD:
                if (bitmap_chunk == UnSet) bitmap_chunk = DEFAULT_BITMAP_CHUNK;
                if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+               if (write_behind && !bitmap_file) {
+                       fprintf(stderr, Name ": write-behind mode requires a bitmap.\n");
+                       rv = 1;
+                       break;
+               }
+
                if (bitmap_file) {
                        if (strcmp(bitmap_file, "internal")==0) {
                                fprintf(stderr, Name ": 'internal' bitmaps not supported with --build\n");
                                rv |= 1;
                                break;
                        }
-                       bitmap_fd = open(bitmap_file, O_RDWR,0);
-                       if (bitmap_fd < 0 && errno != ENOENT) {
-                               perror(Name ": cannot create bitmap file");
-                               rv |= 1;
-                               break;
-                       }
-                       if (bitmap_fd < 0) {
-                               bitmap_fd = CreateBitmap(bitmap_file, force, NULL,
-                                                        bitmap_chunk, delay, size);
-                       }
                }
                rv = Build(devlist->devname, mdfd, chunk, level, layout,
                           raiddisks, devlist->next, assume_clean,
-                          bitmap_file, bitmap_chunk, delay);
+                          bitmap_file, bitmap_chunk, write_behind, delay, verbose-quiet);
                break;
        case CREATE:
                if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
-               if (ss == NULL) {
-                       for(i=0; !ss && superlist[i]; i++) 
-                               ss = superlist[i]->match_metadata_desc("default");
-               }
-               if (!ss) {
-                       fprintf(stderr, Name ": internal error - no default metadata style\n");
-                       exit(2);
+               if (write_behind && !bitmap_file) {
+                       fprintf(stderr, Name ": write-behind mode requires a bitmap.\n");
+                       rv = 1;
+                       break;
                }
 
                rv = Create(ss, devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size,
-                           raiddisks, sparedisks,
-                           devs_found-1, devlist->next, runstop, verbose, force,
-                           bitmap_file, bitmap_chunk, delay);
+                           raiddisks, sparedisks, ident.name,
+                           devs_found-1, devlist->next, runstop, verbose-quiet, force, assume_clean,
+                           bitmap_file, bitmap_chunk, write_behind, delay);
                break;
        case MISC:
 
@@ -945,7 +1030,7 @@ int main(int argc, char *argv[])
                        if (devlist == NULL) {
                                if (devmode=='D' && scan) {
                                        /* apply --detail to all devices in /proc/mdstat */
-                                       struct mdstat_ent *ms = mdstat_read(0);
+                                       struct mdstat_ent *ms = mdstat_read(0, 1);
                                        struct mdstat_ent *e;
                                        for (e=ms ; e ; e=e->next) {
                                                char *name = get_md_name(e->devnum);
@@ -966,7 +1051,7 @@ int main(int argc, char *argv[])
                                        int progress=1, err;
                                        int last = 0;
                                        do {
-                                               struct mdstat_ent *ms = mdstat_read(0);
+                                               struct mdstat_ent *ms = mdstat_read(0, 0);
                                                struct mdstat_ent *e;
 
                                                if (!progress) last = 1;
@@ -991,6 +1076,7 @@ int main(int argc, char *argv[])
                                                        put_md_name(name);
                                                }
                                        } while (!last && err);
+                                       if (err) rv |= 1;
                                } else {
                                        fprintf(stderr, Name ": No devices given.\n");
                                        exit(2);
@@ -1020,7 +1106,8 @@ int main(int argc, char *argv[])
                                                rv |= Manage_ro(dv->devname, mdfd, -1); break;
                                        }
                                        close(mdfd);
-                               }
+                               } else
+                                       rv |= 1;
                        }
                }
                break;
@@ -1036,7 +1123,8 @@ int main(int argc, char *argv[])
                        break;
                }
                rv= Monitor(devlist, mailaddr, program,
-                           delay?delay:60, daemonise, scan, oneshot, configfile, test, pidfile);
+                           delay?delay:60, daemonise, scan, oneshot,
+                           dosyslog, configfile, test, pidfile);
                break;
 
        case GROW:
@@ -1064,7 +1152,7 @@ int main(int argc, char *argv[])
                else if (bitmap_file) {
                        if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
                        rv = Grow_addbitmap(devlist->devname, mdfd, bitmap_file,
-                                           bitmap_chunk, delay);
+                                           bitmap_chunk, delay, write_behind, force);
                } else
                        fprintf(stderr, Name ": no changes to --grow\n");
                break;