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Kumar Kartikeya Dwivedi says: ==================== Refactor lock management This set refactors lock management in the verifier in preparation for spin locks that can be acquired multiple times. In addition to this, unnecessary code special case reference leak logic for callbacks is also dropped, that is no longer necessary. See patches for details. Changelog: ---------- v5 -> v6 v5: https://lore.kernel.org/bpf/20241109225243.2306756-1-memxor@gmail.com * Move active_locks mutation to {acquire,release}_lock_state (Alexei) v4 -> v5 v4: https://lore.kernel.org/bpf/20241109074347.1434011-1-memxor@gmail.com * Make active_locks part of bpf_func_state (Alexei) * Remove unneeded in_callback_fn logic for references v3 -> v4 v3: https://lore.kernel.org/bpf/20241104151716.2079893-1-memxor@gmail.com * Address comments from Alexei * Drop struct bpf_active_lock definition * Name enum type, expand definition to multiple lines * s/REF_TYPE_BPF_LOCK/REF_TYPE_LOCK/g * Change active_lock type to int * Fix type of 'type' in acquire_lock_state * Filter by taking type explicitly in find_lock_state * WARN for default case in refsafe switch statement v2 -> v3 v2: https://lore.kernel.org/bpf/20241103212252.547071-1-memxor@gmail.com * Rebase on bpf-next to resolve merge conflict v1 -> v2 v1: https://lore.kernel.org/bpf/20241103205856.345580-1-memxor@gmail.com * Fix refsafe state comparison to check callback_ref and ptr separately. ==================== Link: https://lore.kernel.org/r/20241109231430.2475236-1-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@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.