mirror of https://github.com/mkerrisk/man-pages
ioctl_userfaultfd.2: Describe memory types that can be used from 4.11
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -169,11 +169,15 @@ field was not zero.
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(Since Linux 4.3.)
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Register a memory address range with the userfaultfd object.
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The pages in the range must be "compatible".
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In the current implementation,
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.\" According to Mike Rapoport, this will change in Linux 4.11.
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Up to Linux kernel 4.11,
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only private anonymous ranges are compatible for registering with
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.BR UFFDIO_REGISTER .
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Since Linux 4.11,
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hugetlbfs and shared memory ranges are also compatible with
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.BR UFFDIO_REGISTER .
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The
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.I argp
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argument is a pointer to a
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