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Don't warn about missing labels for non-BSD slices.

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Don't print debugging messages by default.

Initialize the compatibility slice here and not in the machine-dependent
code.

Fix initialization of the label for the whole disk slice.

Make it clear that write protection of labels doesn't apply when there is
no label.
This commit is contained in:
bde 1995-03-04 11:42:27 +00:00
parent e11bf3ee66
commit f0822da550
1 changed files with 38 additions and 13 deletions
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51
sys/kern/subr_diskslice.c
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@ -43,7 +43,7 @@
* from: wd.c,v 1.55 1994/10/22 01:57:12 phk Exp $
* from: @(#)ufs_disksubr.c 7.16 (Berkeley) 5/4/91
* from: ufs_disksubr.c,v 1.8 1994/06/07 01:21:39 phk Exp $
* $Id: subr_diskslice.c,v 1.6 1995/02/21 08:38:24 bde Exp $
* $Id: subr_diskslice.c,v 1.7 1995/02/22 21:51:53 bde Exp $
*/
#include <sys/param.h>
@ -63,8 +63,12 @@
#define FALSE 0
#define TRUE 1
#define TRACE(str) do { if (ds_debug) printf str; } while (0)
typedef u_char bool_t;
static volatile bool_t ds_debug;
static void dsiodone __P((struct buf *bp));
static char *fixlabel __P((char *sname, struct diskslice *sp,
struct disklabel *lp, int writeflag));
@ -458,6 +462,7 @@ dsopen(dname, dev, mode, sspp, lp, strat, setgeom)
ds_setgeom_t *setgeom;
{
int error;
struct disklabel *lp1;
char *msg;
u_char mask;
bool_t need_init;
@ -478,7 +483,7 @@ dsopen(dname, dev, mode, sspp, lp, strat, setgeom)
if (ssp != NULL && need_init)
dsgone(sspp);
if (need_init) {
printf("dsinit\n");
TRACE(("dsinit\n"));
error = dsinit(dname, dev, strat, lp, sspp);
if (error != 0) {
dsgone(sspp);
@ -487,9 +492,33 @@ dsopen(dname, dev, mode, sspp, lp, strat, setgeom)
lp->d_npartitions = RAW_PART + 1;
lp->d_partitions[RAW_PART].p_size = lp->d_secperunit;
ssp = *sspp;
/*
* If there are no real slices, then make the compatiblity
* slice cover the whole disk.
*/
if (ssp->dss_nslices == BASE_SLICE)
ssp->dss_slices[COMPATIBILITY_SLICE].ds_size
= lp->d_secperunit;
/* Point the compatibility slice at the BSD slice, if any. */
for (slice = BASE_SLICE, sp = &ssp->dss_slices[BASE_SLICE];
slice < ssp->dss_nslices; slice++, sp++)
if (sp->ds_type == DOSPTYP_386BSD /* XXX */) {
ssp->dss_first_bsd_slice = slice;
ssp->dss_slices[COMPATIBILITY_SLICE].ds_offset
= sp->ds_offset;
ssp->dss_slices[COMPATIBILITY_SLICE].ds_size
= sp->ds_size;
ssp->dss_slices[COMPATIBILITY_SLICE].ds_type
= sp->ds_type;
break;
}
lp1 = malloc(sizeof *lp1, M_DEVBUF, M_WAITOK);
*lp1 = *lp;
ssp->dss_slices[WHOLE_DISK_SLICE].ds_label = lp1;
ssp->dss_slices[WHOLE_DISK_SLICE].ds_wlabel = TRUE;
if (setgeom != NULL) {
error = setgeom(lp);
if (error != 0) {
@ -506,17 +535,11 @@ dsopen(dname, dev, mode, sspp, lp, strat, setgeom)
part = dkpart(dev);
unit = dkunit(dev);
if (sp->ds_label == NULL) {
struct disklabel *lp1;
set_ds_wlabel(ssp, slice, TRUE); /* XXX invert */
lp1 = malloc(sizeof *lp1, M_DEVBUF, M_WAITOK);
*lp1 = *lp;
lp = lp1;
if (slice == WHOLE_DISK_SLICE) {
sp->ds_label = lp;
sp->ds_wlabel = TRUE;
goto out;
}
printf("readdisklabel\n");
TRACE(("readdisklabel\n"));
msg = correct_readdisklabel(dkmodpart(dev, RAW_PART), strat, lp);
#if 0 /* XXX */
if (msg == NULL && setgeom != NULL && setgeom(lp) != 0)
@ -527,8 +550,9 @@ dsopen(dname, dev, mode, sspp, lp, strat, setgeom)
msg = fixlabel(sname, sp, lp, FALSE);
if (msg != NULL) {
free(lp, M_DEVBUF);
log(LOG_WARNING, "%s: cannot find label (%s)\n",
sname, msg);
if (sp->ds_type == DOSPTYP_386BSD /* XXX */)
log(LOG_WARNING, "%s: cannot find label (%s)\n",
sname, msg);
if (part == RAW_PART)
goto out;
return (EINVAL); /* XXX needs translation */
@ -537,7 +561,7 @@ dsopen(dname, dev, mode, sspp, lp, strat, setgeom)
struct dkbad *btp;
btp = malloc(sizeof *btp, M_DEVBUF, M_WAITOK);
printf("readbad144\n");
TRACE(("readbad144\n"));
msg = readbad144(dev, strat, lp, btp);
if (msg != NULL) {
log(LOG_WARNING,
@ -559,6 +583,7 @@ dsopen(dname, dev, mode, sspp, lp, strat, setgeom)
}
}
set_ds_label(ssp, slice, lp);
set_ds_wlabel(ssp, slice, FALSE);
}
if (part != RAW_PART
&& (sp->ds_label == NULL || part >= sp->ds_label->d_npartitions))