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61b304b73a
Since commitab51e15d53("fprobe: Introduce FPROBE_FL_KPROBE_SHARED flag for fprobe") introduced fprobe_kprobe_handler() for fprobe::ops::func, unregister_fprobe() fails to unregister the registered if user specifies FPROBE_FL_KPROBE_SHARED flag. Moreover, __register_ftrace_function() is possible to change the ftrace_ops::func, thus we have to check fprobe::ops::saved_func instead. To check it correctly, it should confirm the fprobe::ops::saved_func is either fprobe_handler() or fprobe_kprobe_handler(). Link: https://lore.kernel.org/all/166677683946.1459107.15997653945538644683.stgit@devnote3/ Fixes:cad9931f64("fprobe: Add ftrace based probe APIs") Cc: stable@vger.kernel.org Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.