[PATCH] perform maintenance on Documentation/vm/hugetlbpage.txt
Updates to Documentation/vm/hugetlbpage.txt: - there's no need to select HUGETLB_PAGE manually and it's no longer under the processor menu. Update the text accordingly. - fix typos and trim trailing whitespace. Signed-Off-By: Muli Ben-Yehuda <mulix@mulix.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -13,9 +13,10 @@ This optimization is more critical now as bigger and bigger physical memories
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Users can use the huge page support in Linux kernel by either using the mmap
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system call or standard SYSv shared memory system calls (shmget, shmat).
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First the Linux kernel needs to be built with CONFIG_HUGETLB_PAGE (present
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under Processor types and feature) and CONFIG_HUGETLBFS (present under file
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system option on config menu) config options.
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First the Linux kernel needs to be built with the CONFIG_HUGETLBFS
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(present under "File systems") and CONFIG_HUGETLB_PAGE (selected
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automatically when CONFIG_HUGETLBFS is selected) configuration
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options.
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The kernel built with hugepage support should show the number of configured
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hugepages in the system by running the "cat /proc/meminfo" command.
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@ -39,7 +40,7 @@ in the kernel.
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/proc/sys/vm/nr_hugepages indicates the current number of configured hugetlb
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pages in the kernel. Super user can dynamically request more (or free some
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pre-configured) hugepages.
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The allocation( or deallocation) of hugetlb pages is posible only if there are
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The allocation (or deallocation) of hugetlb pages is possible only if there are
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enough physically contiguous free pages in system (freeing of hugepages is
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possible only if there are enough hugetlb pages free that can be transfered
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back to regular memory pool).
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