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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>
This commit is contained in:
Mike Rapoport 2017-04-25 19:29:05 +03:00 committed by Michael Kerrisk
parent c3d5d9df5c
commit ba92d8b441
1 changed files with 6 additions and 2 deletions
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8
man2/ioctl_userfaultfd.2
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@ -169,11 +169,15 @@ field was not zero.
(Since Linux 4.3.)
Register a memory address range with the userfaultfd object.
The pages in the range must be "compatible".
In the current implementation,
.\" According to Mike Rapoport, this will change in Linux 4.11.
Up to Linux kernel 4.11,
only private anonymous ranges are compatible for registering with
.BR UFFDIO_REGISTER .
Since Linux 4.11,
hugetlbfs and shared memory ranges are also compatible with
.BR UFFDIO_REGISTER .
The
.I argp
argument is a pointer to a