Hi Cyril,
On Tue, Feb 19, 2013 at 4:47 PM, Cyrill Gorcunov <gorcu...@openvz.org> wrote:
> Signed-off-by: Cyrill Gorcunov <gorcu...@openvz.org>
> ---
> man2/prctl.2 | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/man2/prctl.2 b/man2/prctl.2
> index 012af4d..4906c70 100644
> --- a/man2/prctl.2
> +++ b/man2/prctl.2
> @@ -761,6 +761,18 @@ option.
> .\" symbolic-link transitions over all process running in a system.
> .\" ========== END FIXME
> .RE
> +.TP
> +.BR PR_GET_TID_ADDRESS " (since Linux 3.5)"
> +Return
> +.I clear_child_tid
> +in the location pointed by
> +.IR "(int\ **) arg2" .
> +See
> +.BR set_tid_address (2)
> +for more details.
> +This feature is available only if the kernel is built with the
> +.BR CONFIG_CHECKPOINT_RESTORE
> +option enabled.
> .\"
> .SH "RETURN VALUE"
> On success,
As it happened, I added documentation for this flag a few weeks ago,
but your patc includes some details that I didn't document, so I've
applied those pieces to yield:
PR_GET_TID_ADDRESS (since Linux 3.5)
Retrieve the clear_child_tid address set by
set_tid_address(2) and the clone(2) CLONE_CHILD_CLEARTID
flag, in the location pointed to by (int **) arg2. This
feature is available only if the kernel is built with
the CONFIG_CHECKPOINT_RESTORE option enabled.
Thanks,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/
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