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ee1ee8abc4
In the future, we will separate slab, folio and page from each other and calling virt_to_folio() on an address allocated from slab will return NULL. Delay the conversion from struct page to struct slab until we know we're not dealing with a large kmalloc allocation. There's a minor win for large kmalloc allocations as we avoid the compound_head() hidden in virt_to_folio(). This deprecates calling ksize() on memory allocated by alloc_pages(). Today it becomes a warning and support will be removed entirely in the future. Introduce large_kmalloc_size() to abstract how we represent the size of a large kmalloc allocation. For now, this is the same as page_size(), but it will change with separately allocated memdescs. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Link: https://patch.msgid.link/20251113000932.1589073-3-willy@infradead.org Acked-by: David Hildenbrand (Red Hat) <david@kernel.org> Reviewed-by: Harry Yoo <harry.yoo@oracle.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
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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.