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pass also DIOCGCACHE to underlying device, so that upper layers would be able 

to get the device cache properties without knowing the topology; while here also
pass down DIOCGSTRATEGY for neater dkctl(8) output
This commit is contained in:
jdolecek 2017-02-27 21:27:07 +00:00
parent 5ad012e578
commit 198ff4069d
1 changed files with 5 additions and 11 deletions
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16
sys/dev/dkwedge/dk.c
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@ -1,4 +1,4 @@
/* $NetBSD: dk.c,v 1.94 2017/01/19 00:44:40 maya Exp $ */
/* $NetBSD: dk.c,v 1.95 2017/02/27 21:27:07 jdolecek Exp $ */
/*-
* Copyright (c) 2004, 2005, 2006, 2007 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.94 2017/01/19 00:44:40 maya Exp $");
__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.95 2017/02/27 21:27:07 jdolecek Exp $");
#ifdef _KERNEL_OPT
#include "opt_dkwedge.h"
@ -1478,16 +1478,10 @@ dkioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
error = 0;
switch (cmd) {
case DIOCGSTRATEGY:
case DIOCGCACHE:
case DIOCCACHESYNC:
/*
* XXX Do we really need to care about having a writable
* file descriptor here?
*/
if ((flag & FWRITE) == 0)
error = EBADF;
else
error = VOP_IOCTL(sc->sc_parent->dk_rawvp,
cmd, data, flag,
error = VOP_IOCTL(sc->sc_parent->dk_rawvp, cmd, data, flag,
l != NULL ? l->l_cred : NOCRED);
break;
case DIOCGWEDGEINFO: