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

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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>
This commit is contained in:
Theodore Ts'o 2009-09-14 22:59:50 -04:00
parent 7ad9bb651f
commit 3661d28615
2 changed files with 5 additions and 2 deletions
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1
fs/ext4/super.c
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@ -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>

6
include/trace/events/ext4.h
View File

@ -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),