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If pre_ssout() succeeds and sets utask->active_uprobe and utask->xol_vaddr the task must not exit until it calls handle_singlestep() which does the necessary put_uprobe() and xol_free_insn_slot(). Remove put_uprobe() and xol_free_insn_slot() from uprobe_free_utask(). With this change xol_free_insn_slot() can't hit xol_area/utask/xol_vaddr == NULL, we can kill the unnecessary checks checks and simplify this function more. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20240929144239.GA9475@redhat.com
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 reStructuredText 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.