Add function for getting member drive sector size

[thirdparty/mdadm.git] / util.c

diff --git a/util.c b/util.c
index 9e4718fd988c8ed7de7ec3745deb480e75042f67..883eaa41e869b49b374079c1a7b2b49270a60b11 100644 (file)
--- a/util.c
+++ b/util.c
@@ -1324,7 +1324,7 @@ int get_dev_size(int fd, char *dname, unsigned long long *sizep)
                        ldsize <<= 9;
                } else {
                        if (dname)
-                               pr_err("Cannot get size of %s: %s\b",
+                               pr_err("Cannot get size of %s: %s\n",
                                        dname, strerror(errno));
                        return 0;
                }
@@ -1333,6 +1333,22 @@ int get_dev_size(int fd, char *dname, unsigned long long *sizep)
        return 1;
 }
 
+/* Return sector size of device in bytes */
+int get_dev_sector_size(int fd, char *dname, unsigned int *sectsizep)
+{
+       unsigned int sectsize;
+
+       if (ioctl(fd, BLKSSZGET, &sectsize) != 0) {
+               if (dname)
+                       pr_err("Cannot get sector size of %s: %s\n",
+                               dname, strerror(errno));
+               return 0;
+       }
+
+       *sectsizep = sectsize;
+       return 1;
+}
+
 /* Return true if this can only be a container, not a member device.
  * i.e. is and md device and size is zero
  */