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6faeac507b
This patch refactors all CMA related initialization and alignment code to within fadump_cma_init() which gets called in the end. This also means that we keep [reserve_dump_area_start, boot_memory_size] page aligned during fadump_reserve_mem(). Then later in fadump_cma_init() we extract the aligned chunk and provide it to CMA. This inherently also fixes an issue in the current code where the reserve_dump_area_start is not aligned when the physical memory can have holes and the suitable chunk starts at an unaligned boundary. After this we should be able to call fadump_cma_init() independently later in setup_arch() where pageblock_order is non-zero. Suggested-by: Sourabh Jain <sourabhjain@linux.ibm.com> Acked-by: Hari Bathini <hbathini@linux.ibm.com> Reviewed-by: Madhavan Srinivasan <maddy@linux.ibm.com> Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://patch.msgid.link/805d6b900968fb9402ad8f4e4775597db42085c4.1729146153.git.ritesh.list@gmail.com |
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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.