From: Steven Rostedt To remove duplicate code, have the ftrace arch_ftrace_update_code() use the generic ftrace_modify_all_code(). This requires that the default ftrace_replace_code() becomes a weak function so that an arch may override it. Signed-off-by: Steven Rostedt --- arch/x86/kernel/ftrace.c | 15 ++------------- include/linux/ftrace.h | 1 + kernel/trace/ftrace.c | 4 ++-- 3 files changed, 5 insertions(+), 15 deletions(-) diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index cf2d03e..06cfc67 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -435,7 +435,7 @@ static void run_sync(void) local_irq_disable(); } -static void ftrace_replace_code(int enable) +void ftrace_replace_code(int enable) { struct ftrace_rec_iter *iter; struct dyn_ftrace *rec; @@ -493,18 +493,7 @@ void arch_ftrace_update_code(int command) { modifying_ftrace_code++; - if (command & FTRACE_UPDATE_CALLS) - ftrace_replace_code(1); - else if (command & FTRACE_DISABLE_CALLS) - ftrace_replace_code(0); - - if (command & FTRACE_UPDATE_TRACE_FUNC) - ftrace_update_ftrace_func(ftrace_trace_function); - - if (command & FTRACE_START_FUNC_RET) - ftrace_enable_ftrace_graph_caller(); - else if (command & FTRACE_STOP_FUNC_RET) - ftrace_disable_ftrace_graph_caller(); + ftrace_modify_all_code(command); modifying_ftrace_code--; } diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 873ceea..760845f 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -314,6 +314,7 @@ ftrace_set_early_filter(struct ftrace_ops *ops, char *buf, int enable); /* defined in arch */ extern int ftrace_ip_converted(unsigned long ip); extern int ftrace_dyn_arch_init(void *data); +extern void ftrace_replace_code(int enable); extern int ftrace_update_ftrace_func(ftrace_func_t func); extern void ftrace_caller(void); extern void ftrace_call(void); diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index a4ef17d..9e9eebd 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1683,7 +1683,7 @@ __ftrace_replace_code(struct dyn_ftrace *rec, int enable) return -1; /* unknow ftrace bug */ } -static void ftrace_replace_code(int update) +void __weak ftrace_replace_code(int enable) { struct dyn_ftrace *rec; struct ftrace_page *pg; @@ -1693,7 +1693,7 @@ static void ftrace_replace_code(int update) return; do_for_each_ftrace_rec(pg, rec) { - failed = __ftrace_replace_code(rec, update); + failed = __ftrace_replace_code(rec, enable); if (failed) { ftrace_bug(failed, rec->ip); /* Stop processing */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/