Documentation/trace/postprocess/trace-vmscan-postprocess.pl: fix the traceevent regex

When irq, preempt and lockdep fields are printed (field 3 in the example
below) in the trace output, the script fails.

An example entry:
  kswapd0-610   [000] ...1   158.112152: mm_vmscan_kswapd_wake: nid=0 order=0

Signed-off-by: Vinayak Menon <vinayakm.list@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl
index 4a37c47..00e425f 100644 (file)
--- a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl
+++ b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl
@@ -123,7 +123,7 @@ my $regex_writepage;
 
 # Static regex used. Specified like this for readability and for use with /o
 #                      (process_pid)     (cpus      )   ( time  )   (tpoint    ) (details)
-my $regex_traceevent = '\s*([a-zA-Z0-9-]*)\s*(\[[0-9]*\])\s*([0-9.]*):\s*([a-zA-Z_]*):\s*(.*)';
+my $regex_traceevent = '\s*([a-zA-Z0-9-]*)\s*(\[[0-9]*\])(\s*[dX.][Nnp.][Hhs.][0-9a-fA-F.]*|)\s*([0-9.]*):\s*([a-zA-Z_]*):\s*(.*)';
 my $regex_statname = '[-0-9]*\s\((.*)\).*';
 my $regex_statppid = '[-0-9]*\s\(.*\)\s[A-Za-z]\s([0-9]*).*';
 
@@ -270,8 +270,8 @@ EVENT_PROCESS:
        while ($traceevent = <STDIN>) {
                if ($traceevent =~ /$regex_traceevent/o) {
                        $process_pid = $1;
-                       $timestamp = $3;
-                       $tracepoint = $4;
+                       $timestamp = $4;
+                       $tracepoint = $5;
 
                        $process_pid =~ /(.*)-([0-9]*)$/;
                        my $process = $1;
@@ -299,7 +299,7 @@ EVENT_PROCESS:
                        $perprocesspid{$process_pid}->{MM_VMSCAN_DIRECT_RECLAIM_BEGIN}++;
                        $perprocesspid{$process_pid}->{STATE_DIRECT_BEGIN} = $timestamp;
 
-                       $details = $5;
+                       $details = $6;
                        if ($details !~ /$regex_direct_begin/o) {
                                print "WARNING: Failed to parse mm_vmscan_direct_reclaim_begin as expected\n";
                                print "         $details\n";
@@ -322,7 +322,7 @@ EVENT_PROCESS:
                                $perprocesspid{$process_pid}->{HIGH_DIRECT_RECLAIM_LATENCY}[$index] = "$order-$latency";
                        }
                } elsif ($tracepoint eq "mm_vmscan_kswapd_wake") {
-                       $details = $5;
+                       $details = $6;
                        if ($details !~ /$regex_kswapd_wake/o) {
                                print "WARNING: Failed to parse mm_vmscan_kswapd_wake as expected\n";
                                print "         $details\n";
@@ -356,7 +356,7 @@ EVENT_PROCESS:
                } elsif ($tracepoint eq "mm_vmscan_wakeup_kswapd") {
                        $perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD}++;
 
-                       $details = $5;
+                       $details = $6;
                        if ($details !~ /$regex_wakeup_kswapd/o) {
                                print "WARNING: Failed to parse mm_vmscan_wakeup_kswapd as expected\n";
                                print "         $details\n";
@@ -366,7 +366,7 @@ EVENT_PROCESS:
                        my $order = $3;
                        $perprocesspid{$process_pid}->{MM_VMSCAN_WAKEUP_KSWAPD_PERORDER}[$order]++;
                } elsif ($tracepoint eq "mm_vmscan_lru_isolate") {
-                       $details = $5;
+                       $details = $6;
                        if ($details !~ /$regex_lru_isolate/o) {
                                print "WARNING: Failed to parse mm_vmscan_lru_isolate as expected\n";
                                print "         $details\n";
@@ -387,7 +387,7 @@ EVENT_PROCESS:
                        }
                        $perprocesspid{$process_pid}->{HIGH_NR_CONTIG_DIRTY} += $nr_contig_dirty;
                } elsif ($tracepoint eq "mm_vmscan_lru_shrink_inactive") {
-                       $details = $5;
+                       $details = $6;
                        if ($details !~ /$regex_lru_shrink_inactive/o) {
                                print "WARNING: Failed to parse mm_vmscan_lru_shrink_inactive as expected\n";
                                print "         $details\n";
@@ -397,7 +397,7 @@ EVENT_PROCESS:
                        my $nr_reclaimed = $4;
                        $perprocesspid{$process_pid}->{HIGH_NR_RECLAIMED} += $nr_reclaimed;
                } elsif ($tracepoint eq "mm_vmscan_writepage") {
-                       $details = $5;
+                       $details = $6;
                        if ($details !~ /$regex_writepage/o) {
                                print "WARNING: Failed to parse mm_vmscan_writepage as expected\n";
                                print "         $details\n";