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authorHugh Dickins <hugh@veritas.com>2005-11-22 06:32:14 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-22 18:13:42 +0100
commit664beed0190fae687ac51295694004902ddeb18e (patch)
tree89a7c8d9d541fb678c567834cb758fc88b375d47 /mm/mempolicy.c
parent[PATCH] unpaged: sound nopage get_page (diff)
downloadlinux-664beed0190fae687ac51295694004902ddeb18e.tar.xz
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[PATCH] unpaged: unifdefed PageCompound
It looks like snd_xxx is not the only nopage to be using PageReserved as a way of holding a high-order page together: which no longer works, but is masked by our failure to free from VM_RESERVED areas. We cannot fix that bug without first substituting another way to hold the high-order page together, while farming out the 0-order pages from within it. That's just what PageCompound is designed for, but it's been kept under CONFIG_HUGETLB_PAGE. Remove the #ifdefs: which saves some space (out- of-line put_page), doesn't slow down what most needs to be fast (already using hugetlb), and unifies the way we handle high-order pages. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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