diff options
Diffstat (limited to 'sys/geom/geom_sunlabel.c')
| -rw-r--r-- | sys/geom/geom_sunlabel.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/sys/geom/geom_sunlabel.c b/sys/geom/geom_sunlabel.c index f7a6667..8e09362 100644 --- a/sys/geom/geom_sunlabel.c +++ b/sys/geom/geom_sunlabel.c @@ -103,6 +103,41 @@ g_sunlabel_modify(struct g_geom *gp, struct g_sunlabel_softc *ms, u_char *sec0) return (0); } +static void +g_sunlabel_hotwrite(void *arg, int flag) +{ + struct bio *bp; + struct g_geom *gp; + struct g_slicer *gsp; + struct g_slice *gsl; + struct g_sunlabel_softc *ms; + u_char *p; + int error; + + KASSERT(flag != EV_CANCEL, ("g_sunlabel_hotwrite cancelled")); + bp = arg; + gp = bp->bio_to->geom; + gsp = gp->softc; + ms = gsp->softc; + gsl = &gsp->slices[bp->bio_to->index]; + /* + * XXX: For all practical purposes, this whould be equvivalent to + * XXX: "p = (u_char *)bp->bio_data;" because the label is always + * XXX: in the first sector and we refuse sectors smaller than the + * XXX: label. + */ + p = (u_char *)bp->bio_data - (bp->bio_offset + gsl->offset); + + g_topology_unlock(); + error = g_sunlabel_modify(gp, ms, p); + g_topology_lock(); + if (error) { + g_io_deliver(bp, EPERM); + return; + } + g_slice_finish_hot(bp); +} + static int g_sunlabel_start(struct bio *bp) { @@ -174,10 +209,10 @@ g_sunlabel_taste(struct g_class *mp, struct g_provider *pp, int flags) if (LIST_EMPTY(&gp->provider)) { g_std_spoiled(cp); return (NULL); -#ifdef notyet } else { - g_slice_conf_hot(gp, 0, 0, ms->sectorsize); -#endif + g_slice_conf_hot(gp, 0, 0, SUN_SIZE, + G_SLICE_HOT_ALLOW, G_SLICE_HOT_DENY, G_SLICE_HOT_CALL); + gsp->hot = g_sunlabel_hotwrite; } return (gp); } |
