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Make definition of b_cylinder global.

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mycroft 1995-03-29 20:57:35 +00:00
parent 10fc499f8c
commit 46b2bb599f
2 changed files with 8 additions and 9 deletions
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9
sys/kern/subr_disk.c
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@ -1,4 +1,4 @@
/* $NetBSD: subr_disk.c,v 1.12 1994/06/29 06:32:56 cgd Exp $ */
/* $NetBSD: subr_disk.c,v 1.13 1995/03/29 20:57:35 mycroft Exp $ */
/*
* Copyright (c) 1982, 1986, 1988, 1993
@ -62,13 +62,6 @@
* allocated.
*/
/*
* For portability with historic industry practice, the
* cylinder number has to be maintained in the `b_resid'
* field.
*/
#define b_cylinder b_resid
void
disksort(ap, bp)
register struct buf *ap, *bp;

8
sys/sys/buf.h
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@ -1,4 +1,4 @@
/* $NetBSD: buf.h,v 1.18 1995/03/26 20:23:54 jtc Exp $ */
/* $NetBSD: buf.h,v 1.19 1995/03/29 20:57:38 mycroft Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1993
@ -78,6 +78,12 @@ struct buf {
int b_validend; /* Offset of end of valid region. */
};
/*
* For portability with historic industry practice, the cylinder number has
* to be maintained in the `b_resid' field.
*/
#define b_cylinder b_resid /* Cylinder number for disksort(). */
/* Device driver compatibility definitions. */
#define b_active b_bcount /* Driver queue head: drive active. */
#define b_data b_un.b_addr /* b_un.b_addr is not changeable. */