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Diffstat (limited to 'Documentation/trace/kprobes.rst')
| -rw-r--r-- | Documentation/trace/kprobes.rst | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/Documentation/trace/kprobes.rst b/Documentation/trace/kprobes.rst index 48cf778a2468..fc7ce76eab65 100644 --- a/Documentation/trace/kprobes.rst +++ b/Documentation/trace/kprobes.rst @@ -131,8 +131,7 @@ For example, if the function is non-recursive and is called with a spinlock held, maxactive = 1 should be enough. If the function is non-recursive and can never relinquish the CPU (e.g., via a semaphore or preemption), NR_CPUS should be enough. If maxactive <= 0, it is -set to a default value. If CONFIG_PREEMPT is enabled, the default -is max(10, 2*NR_CPUS). Otherwise, the default is NR_CPUS. +set to a default value: max(10, 2*NR_CPUS). It's not a disaster if you set maxactive too low; you'll just miss some probes. In the kretprobe struct, the nmissed field is set to |