From 83dd14933e33a45e9b366c572e15505982b46845 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Tue, 27 Jun 2017 11:04:40 -0400 Subject: [PATCH] ftrace: Decrement count for dyn_ftrace_total_info file The dyn_ftrace_total_info file is used to show how many functions have been converted into nops and can be used by ftrace. The problem is that it does not get decremented when functions are removed (init boot code being freed, and modules being freed). That means the number is very inaccurate everytime functions are removed from the ftrace tables. Decrement it when functions are removed. Signed-off-by: Steven Rostedt (VMware) --- kernel/trace/ftrace.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 914539e3e301..7509ef9810bf 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -5705,6 +5705,7 @@ void ftrace_release_mod(struct module *mod) if (pg == ftrace_pages) ftrace_pages = next_to_ftrace_page(last_pg); + ftrace_update_tot_cnt -= pg->index; *last_pg = pg->next; order = get_count_order(pg->size / ENTRIES_PER_PAGE); free_pages((unsigned long)pg->records, order); -- 2.20.1