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authorIngo Molnar <mingo@elte.hu>2011-05-27 14:28:09 +0200
committerIngo Molnar <mingo@elte.hu>2011-05-27 14:28:09 +0200
commitd6a72fe465f4c54654a1d5488daeb820b4ecf275 (patch)
tree1b581d3b3452b47ba35e1ee3c96d05c030ed9726 /arch/x86
parentb1d2dc3c06d8da7d58fb43d7123a91c1d6a4f576 (diff)
parentb1cff0ad1062621ae63cb6c5dc4165191fe2e9f1 (diff)
Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kernel/ftrace.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 0ba15a6cc57..c9a281f272f 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -123,7 +123,7 @@ static unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
static atomic_t nmi_running = ATOMIC_INIT(0);
static int mod_code_status; /* holds return value of text write */
static void *mod_code_ip; /* holds the IP to write to */
-static void *mod_code_newcode; /* holds the text to write to the IP */
+static const void *mod_code_newcode; /* holds the text to write to the IP */
static unsigned nmi_wait_count;
static atomic_t nmi_update_count = ATOMIC_INIT(0);
@@ -225,7 +225,7 @@ within(unsigned long addr, unsigned long start, unsigned long end)
}
static int
-do_ftrace_mod_code(unsigned long ip, void *new_code)
+do_ftrace_mod_code(unsigned long ip, const void *new_code)
{
/*
* On x86_64, kernel text mappings are mapped read-only with
@@ -266,8 +266,8 @@ static const unsigned char *ftrace_nop_replace(void)
}
static int
-ftrace_modify_code(unsigned long ip, unsigned char *old_code,
- unsigned char *new_code)
+ftrace_modify_code(unsigned long ip, unsigned const char *old_code,
+ unsigned const char *new_code)
{
unsigned char replaced[MCOUNT_INSN_SIZE];
@@ -301,7 +301,7 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code,
int ftrace_make_nop(struct module *mod,
struct dyn_ftrace *rec, unsigned long addr)
{
- unsigned char *new, *old;
+ unsigned const char *new, *old;
unsigned long ip = rec->ip;
old = ftrace_call_replace(ip, addr);
@@ -312,7 +312,7 @@ int ftrace_make_nop(struct module *mod,
int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
{
- unsigned char *new, *old;
+ unsigned const char *new, *old;
unsigned long ip = rec->ip;
old = ftrace_nop_replace();