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authorwalimis <walimisdev@gmail.com>2009-06-03 16:01:28 +0800
committerSteven Rostedt <rostedt@goodmis.org>2009-06-03 10:24:44 -0400
commit083a63b48e4dd0a6a2d44216720076dc81ebb255 (patch)
treec63fe5fed8b44538ecb6870cbe99c45d32915f9e /kernel
parentea05b57cc19234d8de9887c8a32c2e58e84b56ba (diff)
downloadlinux-083a63b48e4dd0a6a2d44216720076dc81ebb255.tar.bz2
tracing/trace_stack: fix the number of entries in the header
The last entry in the stack_dump_trace is ULONG_MAX, which is not a valid entry, but max_stack_trace.nr_entries has accounted for it. So when printing the header, we should decrease it by one. Before fix, print as following, for example: Depth Size Location (53 entries) <--- should be 52 ----- ---- -------- 0) 3264 108 update_wall_time+0x4d5/0x9a0 ... 51) 80 80 syscall_call+0x7/0xb ^^^ it's correct. Signed-off-by: walimis <walimisdev@gmail.com> LKML-Reference: <1244016090-7814-1-git-send-email-walimisdev@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_stack.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 1796f00524e1..2d7aebd71dbd 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -265,7 +265,7 @@ static int t_show(struct seq_file *m, void *v)
seq_printf(m, " Depth Size Location"
" (%d entries)\n"
" ----- ---- --------\n",
- max_stack_trace.nr_entries);
+ max_stack_trace.nr_entries - 1);
if (!stack_tracer_enabled && !max_stack_size)
print_disabled(m);