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deferred_grow_zone() initializes one or more sections in the memory map if buddy runs out of initialized struct pages when CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled. It loops through memblock regions and initializes and frees pages in MAX_ORDER_NR_PAGES chunks. Essentially the same loop is implemented in deferred_init_memmap_chunk(), the only actual difference is that deferred_init_memmap_chunk() does not count initialized pages. Make deferred_init_memmap_chunk() count the initialized pages and return their number, wrap it with deferred_init_memmap_job() for multithreaded initialization with padata_do_multithreaded() and replace open-coded initialization of struct pages in deferred_grow_zone() with a call to deferred_init_memmap_chunk(). Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
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| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.