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diff --git a/sys/geom/mirror/g_mirror.h b/sys/geom/mirror/g_mirror.h
--- a/sys/geom/mirror/g_mirror.h
+++ b/sys/geom/mirror/g_mirror.h
@@ -139,6 +139,7 @@
u_int d_init_ndisks; /* Initial number of mirror components */
uint32_t d_init_slice; /* Initial slice size */
uint8_t d_init_balance;/* Initial balance */
+ uint16_t d_rotation_rate;/* Disk's rotation rate */
uint64_t d_init_mediasize;/* Initial mediasize */
};
#define d_name d_consumer->provider->name
diff --git a/sys/geom/mirror/g_mirror.c b/sys/geom/mirror/g_mirror.c
--- a/sys/geom/mirror/g_mirror.c
+++ b/sys/geom/mirror/g_mirror.c
@@ -48,6 +48,7 @@
#include <geom/geom.h>
#include <geom/geom_dbg.h>
+#include <geom/geom_disk.h>
#include <geom/mirror/g_mirror.h>
FEATURE(geom_mirror, "GEOM mirroring support");
@@ -479,6 +480,10 @@
error = g_getattr("GEOM::candelete", disk->d_consumer, &i);
if (error == 0 && i != 0)
disk->d_flags |= G_MIRROR_DISK_FLAG_CANDELETE;
+ error = g_getattr("GEOM::rotation_rate", disk->d_consumer,
+ &disk->d_rotation_rate);
+ if (error)
+ disk->d_rotation_rate = DISK_RR_UNKNOWN;
if (md->md_provider[0] != '\0')
disk->d_flags |= G_MIRROR_DISK_FLAG_HARDCODED;
disk->d_sync.ds_consumer = NULL;
@@ -1147,6 +1152,27 @@
g_mirror_get_diskname(disk));
}
+static void
+g_mirror_rotation_rate(struct bio *bp)
+{
+ struct g_mirror_softc *sc;
+ struct g_mirror_disk *disk;
+ bool first = true;
+ uint16_t rr = DISK_RR_UNKNOWN;
+
+ sc = bp->bio_to->private;
+ LIST_FOREACH(disk, &sc->sc_disks, d_next) {
+ if (first)
+ rr = disk->d_rotation_rate;
+ else if (rr != disk->d_rotation_rate) {
+ rr = DISK_RR_UNKNOWN;
+ break;
+ }
+ first = false;
+ }
+ g_handleattr(bp, "GEOM::rotation_rate", &rr, sizeof(rr));
+}
+
static void
g_mirror_start(struct bio *bp)
{
@@ -1176,6 +1202,9 @@
} else if (strcmp("GEOM::kerneldump", bp->bio_attribute) == 0) {
g_mirror_kernel_dump(bp);
return;
+ } else if (!strcmp(bp->bio_attribute, "GEOM::rotation_rate")) {
+ g_mirror_rotation_rate(bp);
+ return;
}
/* FALLTHROUGH */
default:

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