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8a7db7790a
The major adjustments are: 1. end = start + new_size. The 'end' here is not an accurate representation, because it is not the new end of crashk_res, but the start of ram_res, difference 1. So eliminate it and replace it with ram_res->start. 2. Use 'ram_res->start' and 'ram_res->end' as arguments to crash_free_reserved_phys_range() to indicate that the memory covered by 'ram_res' is released from the crashk. And keep it close to insert_resource(). 3. Replace 'if (start == end)' with 'if (!new_size)', clear indication that all crashk memory will be shrunken. No functional change. Link: https://lkml.kernel.org/r/20230527123439.772-5-thunder.leizhen@huawei.com Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: Cong Wang <amwang@redhat.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.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 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.