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Add dkwedge_find_by_parent()

This commit is contained in:
christos 2016-04-27 02:19:12 +00:00
parent 33f25f9fb6
commit f2a7ea8367
2 changed files with 22 additions and 3 deletions
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21
sys/dev/dkwedge/dk.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: dk.c,v 1.88 2016/01/15 07:48:22 mlelstv Exp $ */
/* $NetBSD: dk.c,v 1.89 2016/04/27 02:19:12 christos 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 1.88 2016/01/15 07:48:22 mlelstv Exp $");
__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.89 2016/04/27 02:19:12 christos Exp $");
#ifdef _KERNEL_OPT
#include "opt_dkwedge.h"
@ -761,6 +761,23 @@ dkwedge_find_by_wname(const char *wname)
return dv;
}
device_t
dkwedge_find_by_parent(const char *name, size_t *i)
{
rw_enter(&dkwedges_lock, RW_WRITER);
for (; *i < (size_t)ndkwedges; (*i)++) {
struct dkwedge_softc *sc;
if ((sc = dkwedges[*i]) == NULL)
continue;
if (strcmp(sc->sc_parent->dk_name, name) != 0)
continue;
rw_exit(&dkwedges_lock);
return sc->sc_dev;
}
rw_exit(&dkwedges_lock);
return NULL;
}
void
dkwedge_print_wnames(void)
{

4
sys/sys/disk.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: disk.h,v 1.66 2015/11/12 15:25:22 christos Exp $ */
/* $NetBSD: disk.h,v 1.67 2016/04/27 02:19:12 christos Exp $ */
/*-
* Copyright (c) 1996, 1997, 2004 The NetBSD Foundation, Inc.
@ -547,9 +547,11 @@ int dkwedge_list(struct disk *, struct dkwedge_list *, struct lwp *);
void dkwedge_discover(struct disk *);
int dkwedge_read(struct disk *, struct vnode *, daddr_t, void *, size_t);
device_t dkwedge_find_by_wname(const char *);
device_t dkwedge_find_by_parent(const char *, size_t *);
const char *dkwedge_get_parent_name(dev_t);
void dkwedge_print_wnames(void);
device_t dkwedge_find_partition(device_t, daddr_t, uint64_t);
#endif
#endif /* _SYS_DISK_H_ */