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This patch adds a WARN_ON to set_huge_pte_at as the accessor assumes that entries to be written down are all present. (There are separate accessors to clear huge ptes). We will need to handle the !pte_present case where memory offlining is used on hugetlb pages. swap and migration entries will be supplied to set_huge_pte_at in this case. Cc: David Woods <dwoods@mellanox.com> Signed-off-by: Steve Capper <steve.capper@arm.com> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.