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cf6eeb8f9d
The theoretical maximum size of ring buffer is about 64GB, but now the size of ring buffer is specified by max_entries in bpf_attr and its maximum value is (4GB - 1), and it won't be possible for overflow. So just remove the unnecessary size check in ringbuf_map_alloc() but keep the comments for possible extension in future. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Closes: https://lore.kernel.org/bpf/9c636a63-1f3d-442d-9223-96c2dccb9469@moroto.mountain Link: https://lore.kernel.org/bpf/20230704074014.216616-1-houtao@huaweicloud.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 Restructured Text 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.