[gparted] Make check_repair_filesystem() skip mounted file systems (#775932)

[Curtis Gedak <gedakc src gnome org>]

commit 84acec3f91f7822114894301099fcac1d51ddd86
Author: Mike Fleetwood <mike fleetwood googlemail com>
Date:   Mon Nov 14 20:21:55 2016 +0000

    Make check_repair_filesystem() skip mounted file systems (#775932)
    
    Make the logic at the check_repair_filesystem() call sites a little
    easier by not having to avoid calling it for online file systems.  The
    function handles that itself as a silent non-operation.
    
    Bug 775932 - Refactor mostly applying of operations

 src/GParted_Core.cc |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/src/GParted_Core.cc b/src/GParted_Core.cc
index 40f0dcc..db4545b 100644
--- a/src/GParted_Core.cc
+++ b/src/GParted_Core.cc
@@ -2518,14 +2518,14 @@ bool GParted_Core::resize( const Partition & partition_old,
        Sector delta = partition_new.get_sector_length() - partition_old.get_sector_length();
        if ( delta < 0LL )  // shrink
        {
-               success =    ( partition_new.busy || check_repair_filesystem( partition_new, operationdetail 
) )
+               success =    check_repair_filesystem( partition_new, operationdetail )
                          && resize_filesystem( partition_old, partition_new, operationdetail )
                          && ( partition_new.whole_device ||
                               resize_move_partition( partition_old, partition_new, operationdetail ) );
        }
        else if ( delta > 0LL )  // grow
        {
-               success =    ( partition_new.busy || check_repair_filesystem( partition_new, operationdetail 
) )
+               success =    check_repair_filesystem( partition_new, operationdetail )
                          && ( partition_new.whole_device ||
                               resize_move_partition( partition_old, partition_new, operationdetail ) )
                          && maximize_filesystem( partition_new, operationdetail );
@@ -3101,6 +3101,10 @@ void GParted_Core::rollback_transaction( const Partition & partition_src,
 
 bool GParted_Core::check_repair_filesystem( const Partition & partition, OperationDetail & operationdetail ) 
 {
+       if ( partition.busy )
+               // Trying to check an online file system is a successful non-operation.
+               return true;
+
        operationdetail .add_child( OperationDetail( 
                                String::ucompose(
                                                /* TO TRANSLATORS: looks like   check file system on 
/dev/sda5 for errors and (if possible) fix them */