mremap.2: Move a paragraph on MREMAP_DONTUNMAP from NOTES to DESCRIPTION

I think things read slightly easier, if all of the info on
MREMAP_DONTUNMAP is in one place.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2020-04-16 08:21:30 +02:00
parent f15e32e3b9
commit 4737f0d145
1 changed files with 8 additions and 8 deletions

View File

@ -140,6 +140,14 @@ handler
if the address is in a range previously registered with
.BR userfaultfd (2).
Otherwise, the kernel allocates a zero-filled page to handle the fault.
.IP
The
.BR MREMAP_DONTUNMAP
flag may be used to atomically move a mapping while leaving the source
mapped.
Possible applications for this behavior might be garbage collection or
non-cooperative
.BR userfaultfd (2).
.PP
If the memory segment specified by
.I old_address
@ -290,14 +298,6 @@ with
.B ENOMEM
if the area cannot be populated.
.PP
The
.BR MREMAP_DONTUNMAP
flag may be used to atomically move a mapping while leaving the source
mapped.
Possible applications for this behavior might be garbage collection or
non-cooperative
.BR userfaultfd (2).
.PP
Prior to version 2.4, glibc did not expose the definition of
.BR MREMAP_FIXED ,
and the prototype for