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madvise.2: Tweaks to Jan Chaloupka's patch 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2015-02-03 16:53:40 +01:00
parent f7282b7bbf
commit deb9964960
1 changed files with 8 additions and 9 deletions
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17
man2/madvise.2
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@ -148,18 +148,17 @@ bytes containing zero.
.\" disk/swap space. This feature is also useful for supporting
.\" hot-plug memory on UML.
Originally, only shmfs/tmpfs supported this; but since Linux 3.5,
In the initial implementation, only shmfs/tmpfs supported
.BR MADV_REMOVE ;
but since Linux 3.5,
.\" commit 3f31d07571eeea18a7d34db9af21d2285b807a17
any filesystem which supports the
.BR fallocate(2)
mode
.BR fallocate (2)
.BR FALLOC_FL_PUNCH_HOLE
also supports the
.BR madvise(2)
advice
mode also supports the
.BR MADV_REMOVE .
Other filesystems return with the
.BR EOPNOTSUPP
error.
Other filesystems fail with the error
.BR EOPNOTSUPP .
The specified address range must be mapped shared and writable.
This flag cannot be applied to locked pages or Huge TLB pages.