commit 705962ccc9d21a08b74b6b6e1d3cf10f98968a67
Author: Al Viro <viro@zeniv.linux.org.uk>
Date:   Sun May 13 05:52:32 2007 -0400

    fix deadlock in loop.c
    
    ... doh
    
    Jeremy Fitzhardinge noted that the recent loop.c cleanups worked, but
    cause lockdep to complain.
    
    Ouch.  OK, the deadlock is real and yes, I'm an idiot.  Speaking of which,
    we probably want to s/lock/pin/ in drivers/base/map.c to avoid such
    brainos again.  And yes, this stuff needs clear documentation.  Will try
    to put one together once I get some sleep...
    
    Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
    Cc: Jeremy Fitzhardinge <jeremy@goop.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>