diff options
Diffstat (limited to 'sys/geom/raid')
| -rw-r--r-- | sys/geom/raid/g_raid.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sys/geom/raid/g_raid.c b/sys/geom/raid/g_raid.c index 91d14c3..e3dd6ba 100644 --- a/sys/geom/raid/g_raid.c +++ b/sys/geom/raid/g_raid.c @@ -92,6 +92,11 @@ TUNABLE_INT("kern.geom.raid.idle_threshold", &g_raid_idle_threshold); SYSCTL_UINT(_kern_geom_raid, OID_AUTO, idle_threshold, CTLFLAG_RW, &g_raid_idle_threshold, 1000000, "Time in microseconds to consider a volume idle."); +static u_int ar_legacy_aliases = 1; +SYSCTL_INT(_kern_geom_raid, OID_AUTO, legacy_aliases, CTLFLAG_RW, + &ar_legacy_aliases, 0, "Create aliases named as the legacy ataraid style."); +TUNABLE_INT("kern.geom_raid.legacy_aliases", &ar_legacy_aliases); + #define MSLEEP(rv, ident, mtx, priority, wmesg, timeout) do { \ G_RAID_DEBUG(4, "%s: Sleeping %p.", __func__, (ident)); \ @@ -1637,6 +1642,7 @@ g_raid_launch_provider(struct g_raid_volume *vol) struct g_raid_softc *sc; struct g_provider *pp; char name[G_RAID_MAX_VOLUMENAME]; + char announce_buf[80], buf1[32]; off_t off; sc = vol->v_softc; @@ -1650,6 +1656,22 @@ g_raid_launch_provider(struct g_raid_volume *vol) /* Otherwise use sequential volume number. */ snprintf(name, sizeof(name), "raid/r%d", vol->v_global_id); } + + /* + * Create a /dev/ar%d that the old ataraid(4) stack once + * created as an alias for /dev/raid/r%d if requested. + * This helps going from stable/7 ataraid devices to newer + * FreeBSD releases. sbruno 07 MAY 2013 + */ + + if (ar_legacy_aliases) { + snprintf(announce_buf, sizeof(announce_buf), + "kern.devalias.%s", name); + snprintf(buf1, sizeof(buf1), + "ar%d", vol->v_global_id); + setenv(announce_buf, buf1); + } + pp = g_new_providerf(sc->sc_geom, "%s", name); pp->private = vol; pp->mediasize = vol->v_mediasize; |
