Add a 'super-switch' so that different format superblocks can be used.

[thirdparty/mdadm.git] / Examine.c

diff --git a/Examine.c b/Examine.c
index cd79583a827b452045c3ff87c3c7dd6b4a074d09..8081b66079b2d318e105d5976fcd587f045bcb0b 100644 (file)
--- a/Examine.c
+++ b/Examine.c
@@ -60,6 +60,7 @@ int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust)
 
        struct array {
                void *super;
+               struct superswitch *ss;
                struct mdinfo info;
                void *devs;
                struct array *next;
@@ -67,6 +68,8 @@ int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust)
        } *arrays = NULL;
 
        for (; devlist ; devlist=devlist->next) {
+               struct superswitch *ss;
+
                fd = open(devlist->devname, O_RDONLY);
                if (fd < 0) {
                        if (!scan)
@@ -75,7 +78,11 @@ int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust)
                        err = 1;
                }
                else {
-                       err = load_super0(fd, &super, (brief||scan)?NULL:devlist->devname);
+                       ss = guess_super(fd, devlist->devname);
+                       if (ss)
+                               err = ss->load_super(fd, &super, (brief||scan)?NULL:devlist->devname);
+                       else
+                               err = 1;
                        close(fd);
                }
                if (err)
@@ -83,13 +90,13 @@ int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust)
                if (err) rv =1;
 
                if (SparcAdjust)
-                       update_super0(NULL, super, "sparc2.2", devlist->devname, 0);
+                       ss->update_super(NULL, super, "sparc2.2", devlist->devname, 0);
                /* Ok, its good enough to try, though the checksum could be wrong */
                if (brief) {
                        struct array *ap;
                        char *d;
                        for (ap=arrays; ap; ap=ap->next) {
-                               if (compare_super0(&ap->super, super)==0)
+                               if (ss == ap->ss && ss->compare_super(&ap->super, super)==0)
                                        break;
                        }
                        if (!ap) {
@@ -98,10 +105,11 @@ int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust)
                                ap->devs = dl_head();
                                ap->next = arrays;
                                ap->spares = 0;
+                               ap->ss = ss;
                                arrays = ap;
-                               getinfo_super0(&ap->info, super);
+                               ss->getinfo_super(&ap->info, super);
                        } else {
-                               getinfo_super0(&ap->info, super);
+                               ss->getinfo_super(&ap->info, super);
                                free(super);
                        }
                        if (!(ap->info.disk.state & MD_DISK_SYNC))
@@ -110,7 +118,7 @@ int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust)
                        dl_add(ap->devs, d);
                } else {
                        printf("%s:\n",devlist->devname);
-                       examine_super0(super);
+                       ss->examine_super(super);
                        free(super);
                }
        }
@@ -119,7 +127,7 @@ int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust)
                for (ap=arrays; ap; ap=ap->next) {
                        char sep='=';
                        char *d;
-                       brief_examine_super0(ap->super);
+                       ap->ss->brief_examine_super(ap->super);
                        if (ap->spares) printf("   spares=%d", ap->spares);
                        printf("   devices");
                        for (d=dl_next(ap->devs); d!= ap->devs; d=dl_next(d)) {