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With the support for hardware updates of the access and dirty states, the following pte handling functions had to be implemented using exclusives: __ptep_test_and_clear_young(), ptep_get_and_clear(), ptep_set_wrprotect() and ptep_set_access_flags(). To take advantage of the LSE atomic instructions and also make the code cleaner, convert these pte functions to use the more generic cmpxchg()/xchg(). Reviewed-by: Will Deacon <will.deacon@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Steve Capper <steve.capper@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.