Differential D7612 Diff 20138 sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c

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sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c

Show First 20 Lines • Show All 865 Lines • ▼ Show 20 Lines	retry:
if (error == 0 && !vd->vdev_isl2cache &&		if (error == 0 && !vd->vdev_isl2cache &&
(reason == VDEV_LABEL_L2CACHE \|\|		(reason == VDEV_LABEL_L2CACHE \|\|
spa_l2cache_exists(vd->vdev_guid, NULL)))		spa_l2cache_exists(vd->vdev_guid, NULL)))
spa_l2cache_add(vd);		spa_l2cache_add(vd);

return (error);		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		* uberblock load/sync
* ==========================================================================		* ==========================================================================
*/		*/

/*		/*
* Consider the following situation: txg is safely synced to disk. We've		* Consider the following situation: txg is safely synced to disk. We've
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