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From: Shaya Potter <spotter@cs.columbia.edu>
To: linux-kernel@vger.kernel.org
Subject: bug in sys_getpid() comment?
Date: 26 Sep 2002 23:21:25 -0400	[thread overview]
Message-ID: <1033096884.5495.8.camel@zaphod> (raw)

this is sys_getpid() on 2.4.19

asmlinkage long sys_getpid(void)
{
        /* This is SMP safe - current->pid doesn't change */
        return current->tgid;
}

I assume we are returning tgid so that no matter what thread of a
multithreaded program calls getpid we return the same value, and that
the comment with pid is old and should have been updated when it was
changed to return tgid.  A student in my Operating Systems class pointed
this out, so I figured no harm in pointing the possible bug out.

thanks,

shaya


             reply	other threads:[~2002-09-27  3:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-27  3:21 Shaya Potter [this message]
2002-09-27  3:45 ` bug in sys_getpid() comment? Robert Love

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