Commit 3661d286 authored Sep 14, 2009 by Theodore Ts'o

ext4: Fix include/trace/events/ext4.h to work with Systemtap

Using relative pathnames in #include statements interacts badly with
SystemTap, since the fs/ext4/*.h header files are not packaged up as
part of a distribution kernel's header files. Since systemtap doesn't
use TP_fast_assign(), we can use a blind structure definition and then
make sure the needed header files are defined before the ext4 source
files #include the trace/events/ext4.h header file.

https://bugzilla.redhat.com/show_bug.cgi?id=512478

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

parent 7ad9bb65

fs/ext4/super.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,7 @@
		#include "ext4_jbd2.h"
		#include "xattr.h"
		#include "acl.h"
		#include "mballoc.h"

		#define CREATE_TRACE_POINTS
		#include <trace/events/ext4.h>

include/trace/events/ext4.h

+4 −2

Original line number	Diff line number	Diff line
		@@ -5,10 +5,12 @@
		#define _TRACE_EXT4_H

		#include <linux/writeback.h>
		#include "../../../fs/ext4/ext4.h"
		#include "../../../fs/ext4/mballoc.h"
		#include <linux/tracepoint.h>

		struct ext4_allocation_context;
		struct ext4_allocation_request;
		struct ext4_prealloc_space;

		TRACE_EVENT(ext4_free_inode,
		TP_PROTO(struct inode *inode),