Fixes for function graph:

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- Fix missing mutex unlock in error path of register_ftrace_graph()
 
   A previous fix added a return on an error path and forgot to unlock the
   mutex. Instead of dealing with error paths, use guard(mutex) as the mutex
   is just released at the exit of the function anyway. Other functions
   in this file should be updated with this, but that's a cleanup and not
   a fix.
 
 - Change cpuhp setup name to be consistent with other cpuhp states
 
   The same fix that the above patch fixes added a cpuhp_setup_state() call
   with the name of "fgraph_idle_init". I was informed that it should instead
   be something like: "fgraph:online". Update that too.
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Merge tag 'ftrace-v6.12-rc4' into trace/ftrace/core

In order to modify the code that allocates the shadow stacks, merge the
changes that fixed the CPU hotplug shadow stack allocations and build on
top of that.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

...

This commit is contained in:

Steven Rostedt 2024-10-26 06:16:07 -04:00 • committed by Steven Rostedt (Google)

parent 2d17932da4 a574e7f80e

commit 81ec38ee9d

1 changed files with 26 additions and 15 deletions

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41

kernel/trace/fgraph.c

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