Hi kevin ,<div><br></div><div>PI stands for <span style="background-color:rgb(255,255,255);color:rgb(120,120,120);font-family:Monaco,&#39;Courier New&#39;,Courier,monospace;font-size:14px;font-weight:bold"> Priority Inheritance.</span></div>
<div><font color="#787878" face="Monaco, &#39;Courier New&#39;, Courier, monospace"><span style="font-size:14px"><b><br></b></span></font></div><div>Refer : <a href="http://lxr.free-electrons.com/source/Documentation/pi-futex.txt">http://lxr.free-electrons.com/source/Documentation/pi-futex.txt</a></div>
<div><font color="#787878" face="Monaco, &#39;Courier New&#39;, Courier, monospace"><span style="font-size:14px"><b><br></b></span></font></div><div><font face="Monaco, &#39;Courier New&#39;, Courier, monospace"><span style="font-size:14px">Regards,</span></font></div>
<div><font face="Monaco, &#39;Courier New&#39;, Courier, monospace"><span style="font-size:14px">yuva<br></span></font><br><div class="gmail_quote">On Tue, Mar 12, 2013 at 11:54 AM, Kevin Wilson <span dir="ltr">&lt;<a href="mailto:wkevils@gmail.com" target="_blank">wkevils@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
Looking into task_struct (include/linux/scehd.h) , we have:<br>
<br>
        /* PI waiters blocked on a rt_mutex held by this task */<br>
        struct plist_head pi_waiters;<br>
<br>
Any ideas what &quot;pi&quot; stand for ?<br>
I assume it has nothing to do with &quot;pi&quot; from mathematics...<br>
<br>
<br>
rgs.<br>
Kevin<br>
<br>
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</blockquote></div><br></div>