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Kumar Kartikeya Dwivedi says: ==================== Fix resource leak checks for tail calls This set contains a fix for detecting unreleased RCU read locks or unfinished preempt_disable sections when performing a tail call. Spin locks are prevented by accident since they don't allow any function calls, including tail calls (modelled as call instruction to a helper), so we ensure they are checked as well, in preparation for relaxing function call restricton for critical sections in the future. Then, in the second patch, all the checks for reference leaks and locks are unified into a single function that can be called from different places. This unification patch is kept separate and placed after the fix to allow independent backport of the fix to older kernels without a depdendency on the clean up. Naturally, this creates a divergence in the disparate error messages, therefore selftests that rely on the exact error strings need to be updated to match the new verifier log message. A selftest is included to ensure no regressions occur wrt this behavior. ==================== Link: https://lore.kernel.org/r/20241103225940.1408302-1-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@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 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.