Fixes scrub with -p0.

HISTORY

@@ -1,6 +1,11 @@
 SnapRAID HISTORY
 ================
 
+4.3 2013/10
+===========
+ * Fixed the scrub command with the -p0 option. Now it really scrubs
+   only the blocks marked as bad and not the full array.
+
 4.2 2013/10
 ===========
  * Fixed the wrong warning about physical offsets not supported caused

configure.ac

@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_PREREQ([2.65])
-AC_INIT([snapraid], [4.2], [], [], [http://snapraid.sourceforge.net])
+AC_INIT([snapraid], [4.3], [], [], [http://snapraid.sourceforge.net])
 AM_INIT_AUTOMAKE([foreign no-dependencies -Wall])
 AC_CONFIG_SRCDIR([snapraid.c])
 AC_CONFIG_HEADER([config.h])

scrub.c

@@ -524,8 +524,8 @@ int state_scrub(struct snapraid_state* state, int percentage, int olderthan)
 			timelimit = recentlimit;
 		}
 	} else {
-		/* we don't have a time limit based on quota */
-		timelimit = recentlimit;
+		/* if we select a 0 percentage, disable also the time limit */
+		timelimit = 0;
 	}
 
 	/* free the temp vector */