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THP migration is added but only supports x86_64 at the moment. For all other architectures, swp_entry_to_pmd() only returns a zero pmd_t. Due to a GCC zero initializer bug #53119, the standard (pmd_t){0} initializer is not accepted by all GCC versions. __pmd() is a feasible workaround. In addition, sparc32's pmd_t is an array instead of a single value, so we need (pmd_t){ {0}, } instead of (pmd_t){0}. Thus, a different __pmd() definition is needed in sparc32. Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| firmware | ||
| fs | ||
| include | ||
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| kernel | ||
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| Kbuild | ||
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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.