Filesystem detection patch

[uncle_fungus]

This patch will add the filesystem of the device used to run the installed PTS tests to the gathered system info. This is helpful when examining results of highly I/O limited tests such as sqlite. This code requires /bin/stat

diff --git a/pts-core/functions/pts-functions_system.php b/pts-core/functions/pts-functions_system.php
index a27fa6f..3ba18b2 100644
--- a/pts-core/functions/pts-functions_system.php
+++ b/pts-core/functions/pts-functions_system.php
@@ -306,6 +306,14 @@ function pts_report_power_mode()

        return $return_status;
 }
+function filesystem_type()
+{
+       $fs = shell_exec("/bin/stat " . BENCHMARK_ENV_DIR . " -L -f -c %T 2>/dev/null");
+       if( "" == $fs)
+               return "Unknown";
+
+       return $fs;
+}
 function pts_hw_string()
 {
        $hw_string = "Processor: " . processor_string() . " (Total Cores: " . cpu_core_count() . "), ";
@@ -324,7 +332,8 @@ function pts_sw_string()
        $sw_string .= "Kernel: " . kernel_string() . " (" . kernel_arch() . "), ";
        $sw_string .= "X.Org Server: " . graphics_subsystem_version() . ", ";
        $sw_string .= "OpenGL: " . opengl_version() . ", ";
-       $sw_string .= "Compiler: " . compiler_version() . " ";
+       $sw_string .= "Compiler: " . compiler_version() . ", ";
+       $sw_string .= "PTS Filesystem: " . filesystem_type() . " ";

        return $sw_string;
 }

======================================
Phoronix Test Suite v0.8.0 (TRONDHEIM)
System Information
======================================

Hardware:
Processor: Intel CPU T2080 @ 1.73GHz (Total Cores: 2), Motherboard: Unknown, Chipset: ATI 5a31, System Memory: 883MB, Disk Space: 8GB, Graphics: ATI RC410, Screen Resolution: 1280x800

Software:
OS: PCLinuxOS release 2007 (PCLinuxOS) for i586, Kernel: 2.6.22.10.tex1 (i686), X.Org Server: 1.4.0.90, OpenGL: 1.4 (2.1 Mesa 7.0.3-rc2), Compiler: GCC 4.1.1, PTS Filesystem: ext2/ext3