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Today, PAGE_NONE is defined as a page not having _PAGE_USER. In some circunstances, when the CPU supports it, it might be better to be able to flag a page with NO ACCESS. In a following patch, the 8xx will switch user access being flagged in the PMD, therefore it will not be possible anymore to use _PAGE_USER as a way to flag a page with no access. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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| firmware | ||
| fs | ||
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| kernel | ||
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| README | ||
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.