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Implement the DIOCCACHESYNC ioctl; we simply pass it through to each 

underlying component.
This commit is contained in:
thorpej 2004-10-26 22:44:45 +00:00
parent 01d27a59a7
commit f64a29d708
1 changed files with 25 additions and 2 deletions
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27
sys/dev/ccd.c
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@ -1,4 +1,4 @@
/* $NetBSD: ccd.c,v 1.99 2004/09/18 16:40:11 yamt Exp $ */
/* $NetBSD: ccd.c,v 1.100 2004/10/26 22:44:45 thorpej Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 1999 The NetBSD Foundation, Inc.
@ -125,7 +125,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ccd.c,v 1.99 2004/09/18 16:40:11 yamt Exp $");
__KERNEL_RCSID(0, "$NetBSD: ccd.c,v 1.100 2004/10/26 22:44:45 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -986,6 +986,7 @@ ccdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
struct buf *bp;
struct ccd_softc *cs;
struct ccd_ioctl *ccio = (struct ccd_ioctl *)data;
struct ucred *uc;
char **cpp;
struct vnode **vpp;
#ifdef __HAVE_OLD_DISKLABEL
@ -1019,6 +1020,7 @@ ccdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
switch (cmd) {
case CCDIOCCLR:
case DIOCGDINFO:
case DIOCCACHESYNC:
case DIOCSDINFO:
case DIOCWDINFO:
case DIOCGPART:
@ -1214,6 +1216,27 @@ ccdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
&cs->sc_dkdev.dk_label->d_partitions[DISKPART(dev)];
break;
case DIOCCACHESYNC:
/*
* XXX Do we really need to care about having a writable
* file descriptor here?
*/
if ((flag & FWRITE) == 0)
return (EBADF);
/*
* We pass this call down to all components and report
* the first error we encounter.
*/
uc = (p != NULL) ? p->p_ucred : NOCRED;
for (error = 0, i = 0; i < cs->sc_nccdisks; i++) {
j = VOP_IOCTL(cs->sc_cinfo[i].ci_vp, cmd, data,
flag, uc, p);
if (j != 0 && error == 0)
error = j;
}
break;
case DIOCWDINFO:
case DIOCSDINFO:
#ifdef __HAVE_OLD_DISKLABEL