PR6835. io/io_submit.stp: Fix #! start. Convert to normal line-ending.

2 files changed, 76 insertions, 71 deletions

diff --git a/testsuite/systemtap.examples/ChangeLog b/testsuite/systemtap.examples/ChangeLog
index e2389993..c50bcefc 100644
--- a/testsuite/systemtap.examples/ChangeLog
+++ b/testsuite/systemtap.examples/ChangeLog
@@ -1,5 +1,10 @@
 2008-08-11  Mark Wielaard  <mwielaard@redhat.com>
 
+	PR6835. Reported by Eugeniy Meshcheryakov <eugen@debian.org>
+	* io/io_submit.stp: Fix #! start. Convert to normal line-ending.
+
+2008-08-11  Mark Wielaard  <mwielaard@redhat.com>
+
 	PR2895. Reported by Eugeniy Meshcheryakov <eugen@debian.org>
 	*  general/graphs.stp: Add proper #! /usr/bin/env stap line.
 	* general/para-callgraph.stp: Likewise.
diff --git a/testsuite/systemtap.examples/io/io_submit.stp b/testsuite/systemtap.examples/io/io_submit.stp
index 7f350305..13dcc5a3 100755
--- a/testsuite/systemtap.examples/io/io_submit.stp
+++ b/testsuite/systemtap.examples/io/io_submit.stp
@@ -1,71 +1,71 @@
-#! /bin/env stap

-#

-# Copyright (C) 2007 Oracle Corp. Chris Mason <chris.mason@oracle.com>

-#

-# This was implemented to find the most common causes of schedule during

-# the AIO io_submit call.  It does this by recording which pids are inside

-# AIO, and recording the current stack trace if one of those pids is

-# inside schedule.

-# When the probe exits, it prints out the 30 most common call stacks for

-# schedule().

-#

-# This file is free software. You can redistribute it and/or modify it under 

-# the terms of the GNU General Public License (GPL); either version 2, or (at

-# your option) any later version.

-

-global in_iosubmit

-global traces

-

-/*

- * add a probe to sys_io_submit, on entry, record in the in_iosubmit

- * hash table that this proc is in io_submit

- */

-probe syscall.io_submit {

-	in_iosubmit[tid()] = 1

-}

-

-/*

- * when we return from sys_io_submit, record that we're no longer there

- */

-probe syscall.io_submit.return {

-	/* this assumes a given proc will do lots of io_submit calls, and

-	 * so doesn't do the more expensive "delete in_iosubmit[p]".  If

-	 * there are lots of procs doing small number of io_submit calls,

-	 * the hash may grow pretty big, so using delete may be better

-	 */

-	in_iosubmit[tid()] = 0

-}

-

-/*

- * every time we call schedule, check to see if we started off in

- * io_submit.  If so, record our backtrace into the traces histogram

- */

-probe kernel.function("schedule") {

-	if (tid() in in_iosubmit) {

-		traces[backtrace()]++

-

-		/*

-		 * change this to if (1) if you want a backtrace every time

-		 * you go into schedule from io_submit.  Unfortunately, the traces

-		 * saved into the traces histogram above are truncated to just a

-		 * few lines.  so the only way to see the full trace is via the

-		 * more verbose print_backtrace() right here.

-		 */

-		if (0) {

-			printf("schedule in io_submit!\n")

-			print_backtrace()

-		}

-	}

-}

-

-/*

- * when stap is done (via ctrl-c) go through the record of all the

- * trace paths and print the 30 most common.

- */

-probe end {

-	foreach (stack in traces- limit 30) {

-		printf("%d:", traces[stack])

-		print_stack(stack);

-	}

-}

-

+#! /usr/bin/env stap
+#
+# Copyright (C) 2007 Oracle Corp. Chris Mason <chris.mason@oracle.com>
+#
+# This was implemented to find the most common causes of schedule during
+# the AIO io_submit call.  It does this by recording which pids are inside
+# AIO, and recording the current stack trace if one of those pids is
+# inside schedule.
+# When the probe exits, it prints out the 30 most common call stacks for
+# schedule().
+#
+# This file is free software. You can redistribute it and/or modify it under 
+# the terms of the GNU General Public License (GPL); either version 2, or (at
+# your option) any later version.
+
+global in_iosubmit
+global traces
+
+/*
+ * add a probe to sys_io_submit, on entry, record in the in_iosubmit
+ * hash table that this proc is in io_submit
+ */
+probe syscall.io_submit {
+	in_iosubmit[tid()] = 1
+}
+
+/*
+ * when we return from sys_io_submit, record that we're no longer there
+ */
+probe syscall.io_submit.return {
+	/* this assumes a given proc will do lots of io_submit calls, and
+	 * so doesn't do the more expensive "delete in_iosubmit[p]".  If
+	 * there are lots of procs doing small number of io_submit calls,
+	 * the hash may grow pretty big, so using delete may be better
+	 */
+	in_iosubmit[tid()] = 0
+}
+
+/*
+ * every time we call schedule, check to see if we started off in
+ * io_submit.  If so, record our backtrace into the traces histogram
+ */
+probe kernel.function("schedule") {
+	if (tid() in in_iosubmit) {
+		traces[backtrace()]++
+
+		/*
+		 * change this to if (1) if you want a backtrace every time
+		 * you go into schedule from io_submit.  Unfortunately, the traces
+		 * saved into the traces histogram above are truncated to just a
+		 * few lines.  so the only way to see the full trace is via the
+		 * more verbose print_backtrace() right here.
+		 */
+		if (0) {
+			printf("schedule in io_submit!\n")
+			print_backtrace()
+		}
+	}
+}
+
+/*
+ * when stap is done (via ctrl-c) go through the record of all the
+ * trace paths and print the 30 most common.
+ */
+probe end {
+	foreach (stack in traces- limit 30) {
+		printf("%d:", traces[stack])
+		print_stack(stack);
+	}
+}
+