Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[~shefty/rdma-dev.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index eb93fd0ec734760224a16e87c2be8b391f604b55..b29f3c416296ef880203a02c1d9b8c707f09206a 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2475,6 +2475,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
        stacktrace      [FTRACE]
                        Enabled the stack tracer on boot up.
 
        stacktrace      [FTRACE]
                        Enabled the stack tracer on boot up.
 

+       stacktrace_filter=[function-list]
+                       [FTRACE] Limit the functions that the stack tracer
+                       will trace at boot up. function-list is a comma separated
+                       list of functions. This list can be changed at run
+                       time by the stack_trace_filter file in the debugfs
+                       tracing directory. Note, this enables stack tracing
+                       and the stacktrace above is not needed.
+

        sti=            [PARISC,HW]
                        Format: <num>
                        Set the STI (builtin display/keyboard on the HP-PARISC
        sti=            [PARISC,HW]
                        Format: <num>
                        Set the STI (builtin display/keyboard on the HP-PARISC