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authorAndrea Arcangeli <aarcange@redhat.com>2011-01-13 15:47:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 17:32:45 -0800
commit0bbbc0b33d141f78a0d9218a54a47f50621220d3 (patch)
tree3ef3363c189ac536926119731eb86dcf989f4adb /Documentation/md.txt
parentd39d33c332c611094f84cee39715866f4cbf79e2 (diff)
thp: add numa awareness to hugepage allocations
It's mostly a matter of replacing alloc_pages with alloc_pages_vma after introducing alloc_pages_vma. khugepaged needs special handling as the allocation has to happen inside collapse_huge_page where the vma is known and an error has to be returned to the outer loop to sleep alloc_sleep_millisecs in case of failure. But it retains the more efficient logic of handling allocation failures in khugepaged in case of CONFIG_NUMA=n. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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