Tool takes long time to return, and swap file not created successfully for RHEL distros (#15)

* Removed optimization process for defragmentation in XFS file systems

* Added comments for defragmentation in xfs file systems

Co-authored-by: Pavan Rachapudy <vrachapu@microsoft.com>

hibernation-setup-tool.c

@@ -960,6 +960,9 @@ static void spawn_and_wait(const char *program, int n_args, ...)
 
 static void perform_fs_specific_checks(const char *path)
 {
+    /* Not performing defragmentation for xfs file systems as xfs_fsr process is taking time for SKUs with larger RAM.
+       While it is good to have optimization, not ideal to have performance hit on the tool */
+
     if (is_file_on_fs(path, EXT4_SUPER_MAGIC) && is_exec_in_path("e4defrag")) {
         try_spawn_and_wait("e4defrag", 1, path);
         return;
@@ -979,11 +982,6 @@ static void perform_fs_specific_checks(const char *path)
             try_spawn_and_wait("btrfs", 3, "filesystem", "defragment", path);
         return;
     }
-
-    if (is_file_on_fs(path, XFS_SUPER_MAGIC) && is_exec_in_path("xfs_fsr")) {
-        try_spawn_and_wait("xfs_fsr", 2, "-v", path);
-        return;
-    }
 }
 
 bool is_kernel_version_at_least(const char *version)