Mystery submission! :)

[Matthew Dillon]

    Interesting.  From my read it looks like it should not be
    necessary to restore b_data because getpbuf() calls initpbuf()
    which unconditionally reassigns the field.  But, that said,
    it's probably a good idea to fix it so I'll commit the patch
    with a suitable log message.

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>

:While cleaning out my source tree I came across this one-line local
:modification.  Presumably someone who knows more about the kernel than I
:do recommended I make this change when I was having problems with
:something, but darned if I can remember who or why.
:
:It's probably meaningless, but in case not, I thought I'd just toss it
:up here before deleting it.
:
:-Chris
:
:Index: kern_physio.c
:===================================================================
:RCS file: /home/dcvs/src/sys/kern/kern_physio.c,v
:retrieving revision 1.8
:diff -u -r1.8 kern_physio.c
:--- kern_physio.c	16 Feb 2004 20:11:20 -0000	1.8
:+++ kern_physio.c	15 Jun 2004 03:45:52 -0000
:@@ -143,6 +143,7 @@
: 		}
: 	}
: doerror:
:+	bp->b_data = sa;
: 	relpbuf(bp, NULL);
: 	return (error);
: }