Module Name: src
Committed By: jdolecek
Date: Fri Apr 10 10:53:02 UTC 2020
Modified Files:
src/sys/dev: vnd.c
Log Message:
add support for DIOCGSTRATEGY and DIOCGCACHE
only allow DIOCCACHESYNC if open for writing, same as everything supporting
DIOCCACHESYNC
To generate a diff of this commit:
cvs rdiff -u -r1.274 -r1.275 src/sys/dev/vnd.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/vnd.c
diff -u src/sys/dev/vnd.c:1.274 src/sys/dev/vnd.c:1.275
--- src/sys/dev/vnd.c:1.274 Sun Feb 23 15:46:39 2020
+++ src/sys/dev/vnd.c Fri Apr 10 10:53:02 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: vnd.c,v 1.274 2020/02/23 15:46:39 ad Exp $ */
+/* $NetBSD: vnd.c,v 1.275 2020/04/10 10:53:02 jdolecek Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2008, 2020 The NetBSD Foundation, Inc.
@@ -91,7 +91,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.274 2020/02/23 15:46:39 ad Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.275 2020/04/10 10:53:02 jdolecek Exp $");
#if defined(_KERNEL_OPT)
#include "opt_vnd.h"
@@ -1216,6 +1216,7 @@ vndioctl(dev_t dev, u_long cmd, void *da
#endif
case DIOCKLABEL:
case DIOCWLABEL:
+ case DIOCCACHESYNC:
if ((flag & FWRITE) == 0)
return EBADF;
}
@@ -1231,6 +1232,8 @@ vndioctl(dev_t dev, u_long cmd, void *da
case DIOCKLABEL:
case DIOCWLABEL:
case DIOCGDEFLABEL:
+ case DIOCGCACHE:
+ case DIOCGSTRATEGY:
case DIOCCACHESYNC:
#ifdef __HAVE_OLD_DISKLABEL
case ODIOCGDINFO:
@@ -1645,6 +1648,23 @@ unlock_and_exit:
break;
#endif
+ case DIOCGSTRATEGY:
+ {
+ struct disk_strategy *dks = (void *)data;
+
+ /* No lock needed, never changed */
+ strlcpy(dks->dks_name,
+ bufq_getstrategyname(vnd->sc_tab),
+ sizeof(dks->dks_name));
+ dks->dks_paramlen = 0;
+ break;
+ }
+ case DIOCGCACHE:
+ {
+ int *bits = (int *)data;
+ *bits |= DKCACHE_READ | DKCACHE_WRITE;
+ break;
+ }
case DIOCCACHESYNC:
vn_lock(vnd->sc_vp, LK_EXCLUSIVE | LK_RETRY);
error = VOP_FSYNC(vnd->sc_vp, vnd->sc_cred,
