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madvise.2: MADV_REMOVE can be applied only to shared writable mappings 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2015-02-03 14:31:55 +01:00
parent 4335648dd1
commit 7208ad0a3d
1 changed files with 7 additions and 0 deletions
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man2/madvise.2
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@ -146,6 +146,7 @@ error
.\" bufferpool (shared memory segments) - without writing back to .\" bufferpool (shared memory segments) - without writing back to
.\" disk/swap space. This feature is also useful for supporting .\" disk/swap space. This feature is also useful for supporting
.\" hot-plug memory on UML. .\" hot-plug memory on UML.
The specified address range must be mapped shared and writable.
This flag cannot be applied to locked pages or Huge TLB pages. This flag cannot be applied to locked pages or Huge TLB pages.
.TP .TP
.BR MADV_DONTFORK " (since Linux 2.6.16)" .BR MADV_DONTFORK " (since Linux 2.6.16)"
@ -324,6 +325,12 @@ On error, it returns \-1 and
is set appropriately. is set appropriately.
.SH ERRORS .SH ERRORS
.TP .TP
.B EACCES
.I advice
is
.BR MADV_REMOVE ,
but the specified address range is not a shared writable mapping.
.TP
.B EAGAIN .B EAGAIN
A kernel resource was temporarily unavailable. A kernel resource was temporarily unavailable.
.TP .TP