static void
g_journal_ufs_dirty(struct g_consumer *cp)
{
struct fs *fs;
int error, i, sb;
if (SBLOCKSIZE % cp->provider->sectorsize != 0)
return;
for (i = 0; (sb = superblocks[i]) != -1; i++) {
if (sb % cp->provider->sectorsize != 0)
continue;
fs = g_read_data(cp, sb, SBLOCKSIZE, NULL);
if (fs == NULL)
continue;
if (fs->fs_magic != FS_UFS1_MAGIC &&
fs->fs_magic != FS_UFS2_MAGIC) {
g_free(fs);
continue;
}
GJ_DEBUG(0, "clean=%d flags=0x%x", fs->fs_clean, fs->fs_flags);
fs->fs_clean = 0;
fs->fs_flags |= FS_NEEDSFSCK | FS_UNCLEAN;
error = g_write_data(cp, sb, fs, SBLOCKSIZE);
g_free(fs);
if (error != 0) {
GJ_DEBUG(0, "Cannot mark file system %s as dirty "
"(error=%d).", cp->provider->name, error);
} else {
GJ_DEBUG(0, "File system %s marked as dirty.",
cp->provider->name);
}
}
}
static void
g_mbr_ioctl(void *arg)
{
struct bio *bp;
struct g_geom *gp;
struct g_slicer *gsp;
struct g_mbr_softc *ms;
struct g_ioctl *gio;
struct g_consumer *cp;
u_char *sec0;
int error;
/* Get hold of the interesting bits from the bio. */
bp = arg;
gp = bp->bio_to->geom;
gsp = gp->softc;
ms = gsp->softc;
gio = (struct g_ioctl *)bp->bio_data;
/* The disklabel to set is the ioctl argument. */
sec0 = gio->data;
error = g_mbr_modify(gp, ms, sec0);
if (error) {
g_io_deliver(bp, error);
return;
}
cp = LIST_FIRST(&gp->consumer);
error = g_write_data(cp, 0, sec0, 512);
g_io_deliver(bp, error);
}
static int
g_bsd_writelabel(struct g_geom *gp, u_char *bootcode)
{
off_t secoff;
u_int secsize;
struct g_consumer *cp;
struct g_slicer *gsp;
struct g_bsd_softc *ms;
u_char *buf;
uint64_t sum;
int error, i;
gsp = gp->softc;
ms = gsp->softc;
cp = LIST_FIRST(&gp->consumer);
/* Get sector size, we need it to read data. */
secsize = cp->provider->sectorsize;
secoff = ms->labeloffset % secsize;
if (bootcode == NULL) {
buf = g_read_data(cp, ms->labeloffset - secoff, secsize, &error);
if (buf == NULL)
return (error);
bcopy(ms->label, buf + secoff, sizeof(ms->label));
} else {
buf = bootcode;
bcopy(ms->label, buf + ms->labeloffset, sizeof(ms->label));
}
if (ms->labeloffset == ALPHA_LABEL_OFFSET) {
sum = 0;
for (i = 0; i < 63; i++)
sum += le64dec(buf + i * 8);
le64enc(buf + 504, sum);
}
if (bootcode == NULL) {
error = g_write_data(cp, ms->labeloffset - secoff, buf, secsize);
g_free(buf);
} else {
error = g_write_data(cp, 0, bootcode, BBSIZE);
}
return(error);
}
static int
g_mbr_ioctl(struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td)
{
struct g_geom *gp;
struct g_mbr_softc *ms;
struct g_slicer *gsp;
struct g_consumer *cp;
int error, opened;
gp = pp->geom;
gsp = gp->softc;
ms = gsp->softc;
opened = 0;
error = 0;
switch(cmd) {
case DIOCSMBR: {
if (!(fflag & FWRITE))
return (EPERM);
DROP_GIANT();
g_topology_lock();
cp = LIST_FIRST(&gp->consumer);
if (cp->acw == 0) {
error = g_access(cp, 0, 1, 0);
if (error == 0)
opened = 1;
}
if (!error)
error = g_mbr_modify(gp, ms, data, 512);
if (!error)
error = g_write_data(cp, 0, data, 512);
if (opened)
g_access(cp, 0, -1 , 0);
g_topology_unlock();
PICKUP_GIANT();
return(error);
}
default:
return (ENOIOCTL);
}
}
/*-
* This start routine is only called for non-trivial requests, all the
* trivial ones are handled autonomously by the slice code.
* For requests we handle here, we must call the g_io_deliver() on the
* bio, and return non-zero to indicate to the slice code that we did so.
* This code executes in the "DOWN" I/O path, this means:
* * No sleeping.
* * Don't grab the topology lock.
* * Don't call biowait, g_getattr(), g_setattr() or g_read_data()
*/
static int
g_bsd_ioctl(struct g_provider *pp, u_long cmd, void *data, int fflag, struct thread *td)
{
struct g_geom *gp;
struct g_bsd_softc *ms;
struct g_slicer *gsp;
u_char *label;
int error;
gp = pp->geom;
gsp = gp->softc;
ms = gsp->softc;
switch(cmd) {
case DIOCGDINFO:
/* Return a copy of the disklabel to userland. */
bsd_disklabel_le_dec(ms->label, data, MAXPARTITIONS);
return(0);
case DIOCBSDBB: {
struct g_consumer *cp;
u_char *buf;
void *p;
int error, i;
uint64_t sum;
if (!(fflag & FWRITE))
return (EPERM);
/* The disklabel to set is the ioctl argument. */
buf = g_malloc(BBSIZE, M_WAITOK);
p = *(void **)data;
error = copyin(p, buf, BBSIZE);
if (!error) {
/* XXX: Rude, but supposedly safe */
DROP_GIANT();
g_topology_lock();
/* Validate and modify our slice instance to match. */
error = g_bsd_modify(gp, buf + ms->labeloffset);
if (!error) {
cp = LIST_FIRST(&gp->consumer);
if (ms->labeloffset == ALPHA_LABEL_OFFSET) {
sum = 0;
for (i = 0; i < 63; i++)
sum += le64dec(buf + i * 8);
le64enc(buf + 504, sum);
}
error = g_write_data(cp, 0, buf, BBSIZE);
}
g_topology_unlock();
PICKUP_GIANT();
}
g_free(buf);
return (error);
}
case DIOCSDINFO:
case DIOCWDINFO: {
if (!(fflag & FWRITE))
return (EPERM);
label = g_malloc(LABELSIZE, M_WAITOK);
/* The disklabel to set is the ioctl argument. */
bsd_disklabel_le_enc(label, data);
DROP_GIANT();
g_topology_lock();
/* Validate and modify our slice instance to match. */
error = g_bsd_modify(gp, label);
if (error == 0 && cmd == DIOCWDINFO)
error = g_bsd_writelabel(gp, NULL);
g_topology_unlock();
PICKUP_GIANT();
g_free(label);
return(error);
}
default:
return (ENOIOCTL);
}
}
