+int dev_mounted(char *dev)
+{
+ struct mntent *mnt = dev_to_mount(dev);
+
+ if (!mnt)
+ return 0;
+ if (hasmntopt(mnt, "ro"))
+ return 1;
+ return 2;
+}
+
+struct bpos bpos_parse(char *buf)
+{
+ char *s = buf, *field;
+ u64 inode_v = 0, offset_v = 0;
+
+ if (!(field = strsep(&s, ":")) ||
+ kstrtoull(field, 10, &inode_v))
+ die("invalid bpos %s", buf);
+
+ if ((field = strsep(&s, ":")) &&
+ kstrtoull(field, 10, &offset_v))
+ die("invalid bpos %s", buf);
+
+ if (s)
+ die("invalid bpos %s", buf);
+
+ return (struct bpos) { .inode = inode_v, .offset = offset_v };
+}