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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Menglong Dong
52277410cb
[ Upstream commit0de4c70d04] For now, all the kernel functions who are hooked by the fprobe will be added to the hash table "fprobe_ip_table". The key of it is the function address, and the value of it is "struct fprobe_hlist_node". The budget of the hash table is FPROBE_IP_TABLE_SIZE, which is 256. And this means the overhead of the hash table lookup will grow linearly if the count of the functions in the fprobe more than 256. When we try to hook all the kernel functions, the overhead will be huge. Therefore, replace the hash table with rhltable to reduce the overhead. Link: https://lore.kernel.org/all/20250819031825.55653-1-dongml2@chinatelecom.cn/ Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Stable-dep-of:845947aca6("tracing/fprobe: Remove fprobe from hash in failure path") Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.