Add new mode: --incremental

[thirdparty/mdadm.git] / mdadm.c

diff --git a/mdadm.c b/mdadm.c
index b5dce73af2482ebd4123aefa103aef0a1612e00f..9bec29589c6291ae9af9e7df91df174f83c36e9a 100644 (file)
--- a/mdadm.c
+++ b/mdadm.c
@@ -101,6 +101,7 @@ int main(int argc, char *argv[])
        int re_add = 0;
        char *shortopt = short_options;
        int dosyslog = 0;
+       int rebuild_map = 0;
        int auto_update_home = 0;
 
        int copies;
@@ -191,6 +192,7 @@ int main(int argc, char *argv[])
                case 'C': newmode = CREATE; shortopt = short_bitmap_auto_options; break;
                case 'F': newmode = MONITOR;break;
                case 'G': newmode = GROW; shortopt = short_bitmap_auto_options; break;
+               case 'I': newmode = INCREMENTAL; break;
 
                case '#':
                case 'D':
@@ -269,6 +271,7 @@ int main(int argc, char *argv[])
                case 'C':
                case 'F':
                case 'G':
+               case 'I':
                        continue;
                }
                if (opt == 1) {
@@ -321,6 +324,7 @@ int main(int argc, char *argv[])
                case O(ASSEMBLE,AutoHomeHost):
                        auto_update_home = 1;
                        continue;
+               case O(INCREMENTAL, 'e'):
                case O(CREATE,'e'):
                case O(ASSEMBLE,'e'):
                case O(MISC,'e'): /* set metadata (superblock) information */
@@ -628,6 +632,7 @@ int main(int argc, char *argv[])
                case O(ASSEMBLE,'s'): /* scan */
                case O(MISC,'s'):
                case O(MONITOR,'s'):
+               case O(INCREMENTAL,'s'):
                        scan = 1;
                        continue;
 
@@ -702,6 +707,7 @@ int main(int argc, char *argv[])
                case O(MANAGE,'f'): /* set faulty */
                        devmode = 'f';
                        continue;
+               case O(INCREMENTAL,'R'):
                case O(MANAGE,'R'):
                case O(ASSEMBLE,'R'):
                case O(BUILD,'R'):
@@ -833,6 +839,10 @@ int main(int argc, char *argv[])
                                }
                        }
                        continue;
+
+               case O(INCREMENTAL, 'r'):
+                       rebuild_map = 1;
+                       continue;
                }
                /* We have now processed all the valid options. Anything else is
                 * an error
@@ -861,6 +871,7 @@ int main(int argc, char *argv[])
                        case MISC     : help_text = Help_misc; break;
                        case MONITOR  : help_text = Help_monitor; break;
                        case GROW     : help_text = Help_grow; break;
+                       case INCREMENTAL:help_text= Help_incr; break;
                        }
                fputs(help_text,stderr);
                exit(0);
@@ -1289,6 +1300,34 @@ int main(int argc, char *argv[])
                } else
                        fprintf(stderr, Name ": no changes to --grow\n");
                break;
+       case INCREMENTAL:
+               if (rebuild_map) {
+                       RebuildMap();
+               }
+               if (scan) {
+                       if (runstop <= 0) {
+                               fprintf(stderr, Name
+                        ": --incremental --scan meaningless without --run.\n");
+                               break;
+                       }
+                       rv = IncrementalScan(verbose);
+               }
+               if (!devlist) {
+                       if (!rebuild_map && !scan) {
+                               fprintf(stderr, Name
+                                       ": --incremental requires a device.\n");
+                               rv = 1;
+                       }
+                       break;
+               }
+               if (devlist->next) {
+                       fprintf(stderr, Name
+                              ": --incremental can only handle one device.\n");
+                       rv = 1;
+                       break;
+               }
+               rv = Incremental(devlist->devname, verbose-quiet, runstop,
+                                ss, homehost, autof);
        }
        exit(rv);
 }