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4971266e15
The new "kmem_cache" iterator will traverse the list of slab caches and call attached BPF programs for each entry. It should check the argument (ctx.s) if it's NULL before using it. Now the iteration grabs the slab_mutex only if it traverse the list and releases the mutex when it runs the BPF program. The kmem_cache entry is protected by a refcount during the execution. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> #slab Link: https://lore.kernel.org/r/20241010232505.1339892-2-namhyung@kernel.org 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.