Hey Sunil,<div><br></div><div>Hope you are doing good.<br><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Dec 1, 2012 at 6:12 AM, Sunil Agham <span dir="ltr"><<a href="mailto:sunil.agham@gmail.com" target="_blank">sunil.agham@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><font color="#0000ff" face="arial, helvetica, sans-serif">Hello List,</font><div><font color="#0000ff" face="arial, helvetica, sans-serif"><br>
</font></div><div><font color="#0000ff" face="arial, helvetica, sans-serif">This is what I am trying to do in </font><span style="font-family:arial,helvetica,sans-serif;color:rgb(0,0,255);font-size:13px">linux kernel. </span><span style="color:rgb(0,0,255);font-family:arial,helvetica,sans-serif;font-size:13px">When some event occurs; Process X wants to tell process Y to un-schedule itself(Y) [ and change state from "running or ready to run" to "not ready to run until told otherwise" ]. Process X will take care of waking up Y later.</span></div>
<div><div style="font-family:arial,sans-serif;font-size:13px"><font color="#0000ff"><font face="arial,helvetica,sans-serif"><div><br></div><div>One approach probably is to set "<b>need_resched</b>" for process Y so that schedular picks another process at the first opportunity. Is there any other alternative ? Is it safe to do this from interrupt context instead of process X's context ?</div>
<div><br></div></font></font></div></div></blockquote><div><br></div><div>Interrupt context is a better alternative. Make changes around the code which picks up the next process for execution. The waking up would be taken care automatically in that case.</div>
<div><br></div><div>Also, this approach would be least disruptive if compared with the other alternative you listed out.</div><div><br></div><div>Mulyadi, </div><div>Any help?</div><div><br></div><div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-family:arial,sans-serif;font-size:13px"><font color="#0000ff"><font face="arial,helvetica,sans-serif"><div>
</div><div>--</div><div>Sunil</div></font></font></div></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Regards,<br>Sandeep.<br><br><br><br><br><br> <br>“To learn is to change. Education is a process that changes the learner.”<br>
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