Show raid rebuild speed and time left

raid/CHANGELOG

@@ -32,3 +32,4 @@ Added a button to remove a detached partition, thanks to Caspar Smit.
 Added support for creating EXT4 filesystems.
 ---- Changes since 1.510 ----
 Conversion from RAID 5 to 6 and vice versa is now possible, thanks to Caspar Smit.
+When a RAID array is being rebuilt, show the speed and time remaining, thanks to Farid Benamrouche.

raid/raid-lib.pl

@@ -168,6 +168,16 @@ else {
 				}
 			}
 		close(MDSTAT);
+		open(MDSTAT, $config{'mdstat'});
+		while(<MDSTAT>){
+			if (/^.*finish=(\S+)min/){
+				$md->{'remain'} = $1;
+				}
+			if (/^.*speed=(\S+)K/){
+				$md->{'speed'} = $1;
+				}
+			}
+		close(MDSTAT);
 		push(@get_raidtab_cache, $md);
 		}
 

raid/view_raid.cgi

@@ -81,7 +81,9 @@ if ($raid->{'state'}) {
 
 # Rebuild percent
 if ($raid->{'rebuild'}) {
-	print &ui_table_row($text{'view_rebuild'}, $raid->{'rebuild'}." \%");
+	print &ui_table_row($text{'view_rebuild'},
+		$raid->{'rebuild'}." \% (".$raid->{'remain'}." min, ".
+		$raid->{'speed'}." KBytes/s)");
 	}