diff options
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c index 7901115264b5..7e6ff2c688ff 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c @@ -871,6 +871,44 @@ retry: return (error); } +int +vdev_label_write_pad2(vdev_t *vd, const char *buf, size_t size) +{ + spa_t *spa = vd->vdev_spa; + zio_t *zio; + char *pad2; + int flags = ZIO_FLAG_CONFIG_WRITER | ZIO_FLAG_CANFAIL; + int error; + + if (size > VDEV_PAD_SIZE) + return (EINVAL); + + if (!vd->vdev_ops->vdev_op_leaf) + return (ENODEV); + if (vdev_is_dead(vd)) + return (ENXIO); + + ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); + + pad2 = zio_buf_alloc(VDEV_PAD_SIZE); + bzero(pad2, VDEV_PAD_SIZE); + memcpy(pad2, buf, size); + +retry: + zio = zio_root(spa, NULL, NULL, flags); + vdev_label_write(zio, vd, 0, pad2, + offsetof(vdev_label_t, vl_pad2), + VDEV_PAD_SIZE, NULL, NULL, flags); + error = zio_wait(zio); + if (error != 0 && !(flags & ZIO_FLAG_TRYHARD)) { + flags |= ZIO_FLAG_TRYHARD; + goto retry; + } + + zio_buf_free(pad2, VDEV_PAD_SIZE); + return (error); +} + /* * ========================================================================== * uberblock load/sync |