MISC: Add --examine-badblocks option

[thirdparty/mdadm.git] / Examine.c

diff --git a/Examine.c b/Examine.c
index a5b3229352603e9d5141406572354334e1a683cb..90b25ec4421bb03a41eeff62eea5d901362df918 100644 (file)
--- a/Examine.c
+++ b/Examine.c
@@ -187,3 +187,39 @@ int Examine(struct mddev_dev *devlist,
        }
        return rv;
 }
+
+int ExamineBadblocks(char *devname, int brief, struct supertype *forcest)
+{
+       int fd = dev_open(devname, O_RDONLY);
+       struct supertype *st = forcest;
+       int err = 1;
+
+       if (fd < 0) {
+               pr_err("cannot open %s: %s\n", devname, strerror(errno));
+               return 1;
+       }
+       if (!st)
+               st = guess_super(fd);
+       if (!st) {
+               if (!brief)
+                       pr_err("No md superblock detected on %s\n", devname);
+               goto out;
+       }
+       if (!st->ss->examine_badblocks) {
+               pr_err("%s metadata does not support badblocks\n", st->ss->name);
+               goto out;
+       }
+       err = st->ss->load_super(st, fd, brief ? NULL : devname);
+       if (err)
+               goto out;
+       err = st->ss->examine_badblocks(st, fd, devname);
+
+out:
+       if (fd >= 0)
+               close(fd);
+       if (st) {
+               st->ss->free_super(st);
+               free(st);
+       }
+       return err;
+}