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authorJohannes Weiner <hannes@cmpxchg.org>2010-05-24 14:32:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 08:06:58 -0700
commite48293fd75b3aa67f43ad6e3d2ff397caa55d58b (patch)
tree8f163687833fb5e1fa84f72e2e72e1ab83aca91e /fs
parent25ef0e50cca790370ad7838e3ad74db6a6a2d829 (diff)
downloadlinux-e48293fd75b3aa67f43ad6e3d2ff397caa55d58b.tar.gz
linux-e48293fd75b3aa67f43ad6e3d2ff397caa55d58b.tar.xz
mincore: do nested page table walks
Do page table walks with the well-known nested loops we use in several other places already. This avoids doing full page table walks after every pte range and also allows to handle unmapped areas bigger than one pte range in one go. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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