ftrace: Move ftrace_filter_lseek out of CONFIG_DYNAMIC_FTRACE section

From: Li Zefan
Date: Fri Jun 07 2013 - 05:01:04 EST



From: Steven Rostedt <rostedt@xxxxxxxxxxx>

commit 7f49ef69db6bbf756c0abca7e9b65b32e999eec8 upstream.

As ftrace_filter_lseek is now used with ftrace_pid_fops, it needs to
be moved out of the #ifdef CONFIG_DYNAMIC_FTRACE section as the
ftrace_pid_fops is defined when DYNAMIC_FTRACE is not.

Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
[ lizf: adjust context ]
Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/trace/ftrace.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)

--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -933,6 +933,19 @@ static __init void ftrace_profile_debugf

static struct pid * const ftrace_swapper_pid = &init_struct_pid;

+static loff_t
+ftrace_filter_lseek(struct file *file, loff_t offset, int whence)
+{
+ loff_t ret;
+
+ if (file->f_mode & FMODE_READ)
+ ret = seq_lseek(file, offset, whence);
+ else
+ file->f_pos = ret = 1;
+
+ return ret;
+}
+
#ifdef CONFIG_DYNAMIC_FTRACE

#ifndef CONFIG_FTRACE_MCOUNT_RECORD
@@ -2299,19 +2312,6 @@ ftrace_notrace_open(struct inode *inode,
inode, file);
}

-static loff_t
-ftrace_filter_lseek(struct file *file, loff_t offset, int origin)
-{
- loff_t ret;
-
- if (file->f_mode & FMODE_READ)
- ret = seq_lseek(file, offset, origin);
- else
- file->f_pos = ret = 1;
-
- return ret;
-}
-
static int ftrace_match(char *str, char *regex, int len, int type)
{
int matched = 0;


Patches currently in stable-queue which might be from lizefan@xxxxxxxxxx are

queue-3.0/tracing-fix-possible-null-pointer-dereferences.patch
queue-3.0/ftrace-move-ftrace_filter_lseek-out-of-config_dynamic_ftrace-section.patch
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