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| author |   Ingo Molnar <mingo@elte.hu> | 2011-03-18 10:38:53 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-03-18 10:39:00 +0100 |
| commit | 8dd8997d2c56c9f248294805e129e1fc69444380 (patch) | |
| tree | 3b030a04295fc031db98746c4074c2df1ed6a19f /arch/x86/kernel/ftrace.c | |
| parent | x86: Use PentiumPro-optimized partial_csum() on VIA C7 (diff) | |
| parent | Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip (diff) | |
| download | linux-dev-8dd8997d2c56c9f248294805e129e1fc69444380.tar.xz linux-dev-8dd8997d2c56c9f248294805e129e1fc69444380.zip | |
Merge branch 'linus' into x86/urgent
Merge reason: Merge upstream commits to avoid conflicts in upcoming patches.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/ftrace.c')
| -rw-r--r-- | arch/x86/kernel/ftrace.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index 382eb2936d4d..a93742a57468 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -437,18 +437,19 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr, return; } - if (ftrace_push_return_trace(old, self_addr, &trace.depth, - frame_pointer) == -EBUSY) { - *parent = old; - return; - } - trace.func = self_addr; + trace.depth = current->curr_ret_stack + 1; /* Only trace if the calling function expects to */ if (!ftrace_graph_entry(&trace)) { - current->curr_ret_stack--; *parent = old; + return; + } + + if (ftrace_push_return_trace(old, self_addr, &trace.depth, + frame_pointer) == -EBUSY) { + *parent = old; + return; } } #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ |