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Linus Torvalds dbc15d24f9 Tracing fixes:
- Initialize tracing-graph-pause at task creation, not start of
    function tracing. Causes the pause counter to be corrupted.
  - Set "pause-on-trace" for latency tracers as that option breaks
    their output (regression).
  - Fix the wrong error return for setting kretprobes on future
    modules (before they are loaded).
  - Fix re-registering the same kretprobe.
  - Add missing value check for added RCU variable reload.
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Merge tag 'trace-v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Initialize tracing-graph-pause at task creation, not start of
   function tracing, to avoid corrupting the pause counter.

 - Set "pause-on-trace" for latency tracers as that option breaks their
   output (regression).

 - Fix the wrong error return for setting kretprobes on future modules
   (before they are loaded).

 - Fix re-registering the same kretprobe.

 - Add missing value check for added RCU variable reload.

* tag 'trace-v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracepoint: Fix race between tracing and removing tracepoint
  kretprobe: Avoid re-registration of the same kretprobe earlier
  tracing/kprobe: Fix to support kretprobe events on unloaded modules
  tracing: Use pause-on-trace with the latency tracers
  fgraph: Initialize tracing_graph_pause at task creation
2021-02-03 10:02:00 -08:00
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Linux kernel
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There are several guides for kernel developers and users. These guides can
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