mirror of https://github.com/mkerrisk/man-pages
ioctl_userfaultfd.2: Explain concept of "compatible" mapping for UFFDIO_REGISTER
Reported-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
parent
ef443f0771
commit
d87f377e4e
|
@ -163,6 +163,12 @@ field was not zero.
|
||||||
.SS UFFDIO_REGISTER
|
.SS UFFDIO_REGISTER
|
||||||
(Since Linux 4.3.)
|
(Since Linux 4.3.)
|
||||||
Register a memory address range with the userfaultfd object.
|
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.
|
||||||
|
only private anonymous ranges are compatible for registering with
|
||||||
|
.BR UFFDIO_REGISTER .
|
||||||
|
|
||||||
The
|
The
|
||||||
.I argp
|
.I argp
|
||||||
argument is a pointer to a
|
argument is a pointer to a
|
||||||
|
|
Loading…
Reference in New Issue