4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
23 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
24 * Rewritten for Linux by Brian Behlendorf <behlendorf1@llnl.gov>.
26 * Copyright (c) 2012, 2019 by Delphix. All rights reserved.
29 #include <sys/zfs_context.h>
30 #include <sys/spa_impl.h>
31 #include <sys/vdev_disk.h>
32 #include <sys/vdev_impl.h>
33 #include <sys/vdev_trim.h>
35 #include <sys/fs/zfs.h>
37 #include <linux/msdos_fs.h>
38 #include <linux/vfs_compat.h>
40 typedef struct vdev_disk {
41 struct block_device *vd_bdev;
46 * Unique identifier for the exclusive vdev holder.
48 static void *zfs_vdev_holder = VDEV_HOLDER;
51 * Wait up to zfs_vdev_open_timeout_ms milliseconds before determining the
52 * device is missing. The missing path may be transient since the links
53 * can be briefly removed and recreated in response to udev events.
55 static unsigned zfs_vdev_open_timeout_ms = 1000;
58 * Size of the "reserved" partition, in blocks.
60 #define EFI_MIN_RESV_SIZE (16 * 1024)
63 * Virtual device vector for disks.
65 typedef struct dio_request {
66 zio_t *dr_zio; /* Parent ZIO */
67 atomic_t dr_ref; /* References */
68 int dr_error; /* Bio error */
69 int dr_bio_count; /* Count of bio's */
70 struct bio *dr_bio[0]; /* Attached bio's */
74 vdev_bdev_mode(spa_mode_t spa_mode)
78 if (spa_mode & SPA_MODE_READ)
81 if (spa_mode & SPA_MODE_WRITE)
88 * Returns the usable capacity (in bytes) for the partition or disk.
91 bdev_capacity(struct block_device *bdev)
93 return (i_size_read(bdev->bd_inode));
97 * Returns the maximum expansion capacity of the block device (in bytes).
99 * It is possible to expand a vdev when it has been created as a wholedisk
100 * and the containing block device has increased in capacity. Or when the
101 * partition containing the pool has been manually increased in size.
103 * This function is only responsible for calculating the potential expansion
104 * size so it can be reported by 'zpool list'. The efi_use_whole_disk() is
105 * responsible for verifying the expected partition layout in the wholedisk
106 * case, and updating the partition table if appropriate. Once the partition
107 * size has been increased the additional capacity will be visible using
110 * The returned maximum expansion capacity is always expected to be larger, or
111 * at the very least equal, to its usable capacity to prevent overestimating
112 * the pool expandsize.
115 bdev_max_capacity(struct block_device *bdev, uint64_t wholedisk)
120 if (wholedisk && bdev->bd_part != NULL && bdev != bdev->bd_contains) {
122 * When reporting maximum expansion capacity for a wholedisk
123 * deduct any capacity which is expected to be lost due to
124 * alignment restrictions. Over reporting this value isn't
125 * harmful and would only result in slightly less capacity
126 * than expected post expansion.
127 * The estimated available space may be slightly smaller than
128 * bdev_capacity() for devices where the number of sectors is
129 * not a multiple of the alignment size and the partition layout
130 * is keeping less than PARTITION_END_ALIGNMENT bytes after the
131 * "reserved" EFI partition: in such cases return the device
134 available = i_size_read(bdev->bd_contains->bd_inode) -
135 ((EFI_MIN_RESV_SIZE + NEW_START_BLOCK +
136 PARTITION_END_ALIGNMENT) << SECTOR_BITS);
137 psize = MAX(available, bdev_capacity(bdev));
139 psize = bdev_capacity(bdev);
146 vdev_disk_error(zio_t *zio)
149 * This function can be called in interrupt context, for instance while
150 * handling IRQs coming from a misbehaving disk device; use printk()
151 * which is safe from any context.
153 printk(KERN_WARNING "zio pool=%s vdev=%s error=%d type=%d "
154 "offset=%llu size=%llu flags=%x\n", spa_name(zio->io_spa),
155 zio->io_vd->vdev_path, zio->io_error, zio->io_type,
156 (u_longlong_t)zio->io_offset, (u_longlong_t)zio->io_size,
161 vdev_disk_open(vdev_t *v, uint64_t *psize, uint64_t *max_psize,
162 uint64_t *logical_ashift, uint64_t *physical_ashift)
164 struct block_device *bdev;
165 fmode_t mode = vdev_bdev_mode(spa_mode(v->vdev_spa));
166 hrtime_t timeout = MSEC2NSEC(zfs_vdev_open_timeout_ms);
169 /* Must have a pathname and it must be absolute. */
170 if (v->vdev_path == NULL || v->vdev_path[0] != '/') {
171 v->vdev_stat.vs_aux = VDEV_AUX_BAD_LABEL;
172 vdev_dbgmsg(v, "invalid vdev_path");
173 return (SET_ERROR(EINVAL));
177 * Reopen the device if it is currently open. When expanding a
178 * partition force re-scanning the partition table while closed
179 * in order to get an accurate updated block device size. Then
180 * since udev may need to recreate the device links increase the
181 * open retry timeout before reporting the device as unavailable.
185 char disk_name[BDEVNAME_SIZE + 6] = "/dev/";
186 boolean_t reread_part = B_FALSE;
188 rw_enter(&vd->vd_lock, RW_WRITER);
193 if (v->vdev_expanding && bdev != bdev->bd_contains) {
194 bdevname(bdev->bd_contains, disk_name + 5);
195 reread_part = B_TRUE;
198 blkdev_put(bdev, mode | FMODE_EXCL);
202 bdev = blkdev_get_by_path(disk_name, mode | FMODE_EXCL,
205 int error = vdev_bdev_reread_part(bdev);
206 blkdev_put(bdev, mode | FMODE_EXCL);
209 zfs_vdev_open_timeout_ms * 2);
214 vd = kmem_zalloc(sizeof (vdev_disk_t), KM_SLEEP);
216 rw_init(&vd->vd_lock, NULL, RW_DEFAULT, NULL);
217 rw_enter(&vd->vd_lock, RW_WRITER);
221 * Devices are always opened by the path provided at configuration
222 * time. This means that if the provided path is a udev by-id path
223 * then drives may be re-cabled without an issue. If the provided
224 * path is a udev by-path path, then the physical location information
225 * will be preserved. This can be critical for more complicated
226 * configurations where drives are located in specific physical
227 * locations to maximize the systems tolerance to component failure.
229 * Alternatively, you can provide your own udev rule to flexibly map
230 * the drives as you see fit. It is not advised that you use the
231 * /dev/[hd]d devices which may be reordered due to probing order.
232 * Devices in the wrong locations will be detected by the higher
233 * level vdev validation.
235 * The specified paths may be briefly removed and recreated in
236 * response to udev events. This should be exceptionally unlikely
237 * because the zpool command makes every effort to verify these paths
238 * have already settled prior to reaching this point. Therefore,
239 * a ENOENT failure at this point is highly likely to be transient
240 * and it is reasonable to sleep and retry before giving up. In
241 * practice delays have been observed to be on the order of 100ms.
243 hrtime_t start = gethrtime();
244 bdev = ERR_PTR(-ENXIO);
245 while (IS_ERR(bdev) && ((gethrtime() - start) < timeout)) {
246 bdev = blkdev_get_by_path(v->vdev_path, mode | FMODE_EXCL,
248 if (unlikely(PTR_ERR(bdev) == -ENOENT)) {
249 schedule_timeout(MSEC_TO_TICK(10));
250 } else if (IS_ERR(bdev)) {
256 int error = -PTR_ERR(bdev);
257 vdev_dbgmsg(v, "open error=%d timeout=%llu/%llu", error,
258 (u_longlong_t)(gethrtime() - start),
259 (u_longlong_t)timeout);
262 rw_exit(&vd->vd_lock);
263 return (SET_ERROR(error));
267 rw_exit(&vd->vd_lock);
270 struct request_queue *q = bdev_get_queue(vd->vd_bdev);
272 /* Determine the physical block size */
273 int physical_block_size = bdev_physical_block_size(vd->vd_bdev);
275 /* Determine the logical block size */
276 int logical_block_size = bdev_logical_block_size(vd->vd_bdev);
278 /* Clear the nowritecache bit, causes vdev_reopen() to try again. */
279 v->vdev_nowritecache = B_FALSE;
281 /* Set when device reports it supports TRIM. */
282 v->vdev_has_trim = !!blk_queue_discard(q);
284 /* Set when device reports it supports secure TRIM. */
285 v->vdev_has_securetrim = !!blk_queue_discard_secure(q);
287 /* Inform the ZIO pipeline that we are non-rotational */
288 v->vdev_nonrot = blk_queue_nonrot(q);
290 /* Physical volume size in bytes for the partition */
291 *psize = bdev_capacity(vd->vd_bdev);
293 /* Physical volume size in bytes including possible expansion space */
294 *max_psize = bdev_max_capacity(vd->vd_bdev, v->vdev_wholedisk);
296 /* Based on the minimum sector size set the block size */
297 *physical_ashift = highbit64(MAX(physical_block_size,
298 SPA_MINBLOCKSIZE)) - 1;
300 *logical_ashift = highbit64(MAX(logical_block_size,
301 SPA_MINBLOCKSIZE)) - 1;
307 vdev_disk_close(vdev_t *v)
309 vdev_disk_t *vd = v->vdev_tsd;
311 if (v->vdev_reopening || vd == NULL)
314 if (vd->vd_bdev != NULL) {
315 blkdev_put(vd->vd_bdev,
316 vdev_bdev_mode(spa_mode(v->vdev_spa)) | FMODE_EXCL);
319 rw_destroy(&vd->vd_lock);
320 kmem_free(vd, sizeof (vdev_disk_t));
324 static dio_request_t *
325 vdev_disk_dio_alloc(int bio_count)
330 dr = kmem_zalloc(sizeof (dio_request_t) +
331 sizeof (struct bio *) * bio_count, KM_SLEEP);
333 atomic_set(&dr->dr_ref, 0);
334 dr->dr_bio_count = bio_count;
337 for (i = 0; i < dr->dr_bio_count; i++)
338 dr->dr_bio[i] = NULL;
345 vdev_disk_dio_free(dio_request_t *dr)
349 for (i = 0; i < dr->dr_bio_count; i++)
351 bio_put(dr->dr_bio[i]);
353 kmem_free(dr, sizeof (dio_request_t) +
354 sizeof (struct bio *) * dr->dr_bio_count);
358 vdev_disk_dio_get(dio_request_t *dr)
360 atomic_inc(&dr->dr_ref);
364 vdev_disk_dio_put(dio_request_t *dr)
366 int rc = atomic_dec_return(&dr->dr_ref);
369 * Free the dio_request when the last reference is dropped and
370 * ensure zio_interpret is called only once with the correct zio
373 zio_t *zio = dr->dr_zio;
374 int error = dr->dr_error;
376 vdev_disk_dio_free(dr);
379 zio->io_error = error;
380 ASSERT3S(zio->io_error, >=, 0);
382 vdev_disk_error(zio);
384 zio_delay_interrupt(zio);
391 BIO_END_IO_PROTO(vdev_disk_physio_completion, bio, error)
393 dio_request_t *dr = bio->bi_private;
396 if (dr->dr_error == 0) {
397 #ifdef HAVE_1ARG_BIO_END_IO_T
398 dr->dr_error = BIO_END_IO_ERROR(bio);
401 dr->dr_error = -(error);
402 else if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
407 /* Drop reference acquired by __vdev_disk_physio */
408 rc = vdev_disk_dio_put(dr);
412 vdev_submit_bio_impl(struct bio *bio)
414 #ifdef HAVE_1ARG_SUBMIT_BIO
421 #ifdef HAVE_BIO_SET_DEV
422 #if defined(CONFIG_BLK_CGROUP) && defined(HAVE_BIO_SET_DEV_GPL_ONLY)
424 * The Linux 5.5 kernel updated percpu_ref_tryget() which is inlined by
425 * blkg_tryget() to use rcu_read_lock() instead of rcu_read_lock_sched().
426 * As a side effect the function was converted to GPL-only. Define our
427 * own version when needed which uses rcu_read_lock_sched().
429 #if defined(HAVE_BLKG_TRYGET_GPL_ONLY)
431 vdev_blkg_tryget(struct blkcg_gq *blkg)
433 struct percpu_ref *ref = &blkg->refcnt;
434 unsigned long __percpu *count;
437 rcu_read_lock_sched();
439 if (__ref_is_percpu(ref, &count)) {
440 this_cpu_inc(*count);
443 rc = atomic_long_inc_not_zero(&ref->count);
446 rcu_read_unlock_sched();
450 #elif defined(HAVE_BLKG_TRYGET)
451 #define vdev_blkg_tryget(bg) blkg_tryget(bg)
454 * The Linux 5.0 kernel updated the bio_set_dev() macro so it calls the
455 * GPL-only bio_associate_blkg() symbol thus inadvertently converting
456 * the entire macro. Provide a minimal version which always assigns the
457 * request queue's root_blkg to the bio.
460 vdev_bio_associate_blkg(struct bio *bio)
462 struct request_queue *q = bio->bi_disk->queue;
464 ASSERT3P(q, !=, NULL);
465 ASSERT3P(bio->bi_blkg, ==, NULL);
467 if (q->root_blkg && vdev_blkg_tryget(q->root_blkg))
468 bio->bi_blkg = q->root_blkg;
470 #define bio_associate_blkg vdev_bio_associate_blkg
474 * Provide a bio_set_dev() helper macro for pre-Linux 4.14 kernels.
477 bio_set_dev(struct bio *bio, struct block_device *bdev)
481 #endif /* HAVE_BIO_SET_DEV */
484 vdev_submit_bio(struct bio *bio)
486 struct bio_list *bio_list = current->bio_list;
487 current->bio_list = NULL;
488 vdev_submit_bio_impl(bio);
489 current->bio_list = bio_list;
493 __vdev_disk_physio(struct block_device *bdev, zio_t *zio,
494 size_t io_size, uint64_t io_offset, int rw, int flags)
499 int bio_size, bio_count = 16;
500 int i = 0, error = 0;
501 struct blk_plug plug;
504 * Accessing outside the block device is never allowed.
506 if (io_offset + io_size > bdev->bd_inode->i_size) {
507 vdev_dbgmsg(zio->io_vd,
508 "Illegal access %llu size %llu, device size %llu",
509 io_offset, io_size, i_size_read(bdev->bd_inode));
510 return (SET_ERROR(EIO));
514 dr = vdev_disk_dio_alloc(bio_count);
516 return (SET_ERROR(ENOMEM));
518 if (zio && !(zio->io_flags & (ZIO_FLAG_IO_RETRY | ZIO_FLAG_TRYHARD)))
519 bio_set_flags_failfast(bdev, &flags);
524 * When the IO size exceeds the maximum bio size for the request
525 * queue we are forced to break the IO in multiple bio's and wait
526 * for them all to complete. Ideally, all pool users will set
527 * their volume block size to match the maximum request size and
528 * the common case will be one bio per vdev IO request.
532 bio_offset = io_offset;
534 for (i = 0; i <= dr->dr_bio_count; i++) {
536 /* Finished constructing bio's for given buffer */
541 * By default only 'bio_count' bio's per dio are allowed.
542 * However, if we find ourselves in a situation where more
543 * are needed we allocate a larger dio and warn the user.
545 if (dr->dr_bio_count == i) {
546 vdev_disk_dio_free(dr);
551 /* bio_alloc() with __GFP_WAIT never returns NULL */
552 dr->dr_bio[i] = bio_alloc(GFP_NOIO,
553 MIN(abd_nr_pages_off(zio->io_abd, bio_size, abd_offset),
555 if (unlikely(dr->dr_bio[i] == NULL)) {
556 vdev_disk_dio_free(dr);
557 return (SET_ERROR(ENOMEM));
560 /* Matching put called by vdev_disk_physio_completion */
561 vdev_disk_dio_get(dr);
563 bio_set_dev(dr->dr_bio[i], bdev);
564 BIO_BI_SECTOR(dr->dr_bio[i]) = bio_offset >> 9;
565 dr->dr_bio[i]->bi_end_io = vdev_disk_physio_completion;
566 dr->dr_bio[i]->bi_private = dr;
567 bio_set_op_attrs(dr->dr_bio[i], rw, flags);
569 /* Remaining size is returned to become the new size */
570 bio_size = abd_bio_map_off(dr->dr_bio[i], zio->io_abd,
571 bio_size, abd_offset);
573 /* Advance in buffer and construct another bio if needed */
574 abd_offset += BIO_BI_SIZE(dr->dr_bio[i]);
575 bio_offset += BIO_BI_SIZE(dr->dr_bio[i]);
578 /* Extra reference to protect dio_request during vdev_submit_bio */
579 vdev_disk_dio_get(dr);
581 if (dr->dr_bio_count > 1)
582 blk_start_plug(&plug);
584 /* Submit all bio's associated with this dio */
585 for (i = 0; i < dr->dr_bio_count; i++)
587 vdev_submit_bio(dr->dr_bio[i]);
589 if (dr->dr_bio_count > 1)
590 blk_finish_plug(&plug);
592 (void) vdev_disk_dio_put(dr);
597 BIO_END_IO_PROTO(vdev_disk_io_flush_completion, bio, error)
599 zio_t *zio = bio->bi_private;
600 #ifdef HAVE_1ARG_BIO_END_IO_T
601 zio->io_error = BIO_END_IO_ERROR(bio);
603 zio->io_error = -error;
606 if (zio->io_error && (zio->io_error == EOPNOTSUPP))
607 zio->io_vd->vdev_nowritecache = B_TRUE;
610 ASSERT3S(zio->io_error, >=, 0);
612 vdev_disk_error(zio);
617 vdev_disk_io_flush(struct block_device *bdev, zio_t *zio)
619 struct request_queue *q;
622 q = bdev_get_queue(bdev);
624 return (SET_ERROR(ENXIO));
626 bio = bio_alloc(GFP_NOIO, 0);
627 /* bio_alloc() with __GFP_WAIT never returns NULL */
628 if (unlikely(bio == NULL))
629 return (SET_ERROR(ENOMEM));
631 bio->bi_end_io = vdev_disk_io_flush_completion;
632 bio->bi_private = zio;
633 bio_set_dev(bio, bdev);
635 vdev_submit_bio(bio);
636 invalidate_bdev(bdev);
642 vdev_disk_io_start(zio_t *zio)
644 vdev_t *v = zio->io_vd;
645 vdev_disk_t *vd = v->vdev_tsd;
646 unsigned long trim_flags = 0;
650 * If the vdev is closed, it's likely in the REMOVED or FAULTED state.
651 * Nothing to be done here but return failure.
654 zio->io_error = ENXIO;
659 rw_enter(&vd->vd_lock, RW_READER);
662 * If the vdev is closed, it's likely due to a failed reopen and is
663 * in the UNAVAIL state. Nothing to be done here but return failure.
665 if (vd->vd_bdev == NULL) {
666 rw_exit(&vd->vd_lock);
667 zio->io_error = ENXIO;
672 switch (zio->io_type) {
675 if (!vdev_readable(v)) {
676 rw_exit(&vd->vd_lock);
677 zio->io_error = SET_ERROR(ENXIO);
682 switch (zio->io_cmd) {
683 case DKIOCFLUSHWRITECACHE:
685 if (zfs_nocacheflush)
688 if (v->vdev_nowritecache) {
689 zio->io_error = SET_ERROR(ENOTSUP);
693 error = vdev_disk_io_flush(vd->vd_bdev, zio);
695 rw_exit(&vd->vd_lock);
699 zio->io_error = error;
704 zio->io_error = SET_ERROR(ENOTSUP);
707 rw_exit(&vd->vd_lock);
719 #if defined(BLKDEV_DISCARD_SECURE)
720 if (zio->io_trim_flags & ZIO_TRIM_SECURE)
721 trim_flags |= BLKDEV_DISCARD_SECURE;
723 zio->io_error = -blkdev_issue_discard(vd->vd_bdev,
724 zio->io_offset >> 9, zio->io_size >> 9, GFP_NOFS,
727 rw_exit(&vd->vd_lock);
732 rw_exit(&vd->vd_lock);
733 zio->io_error = SET_ERROR(ENOTSUP);
738 zio->io_target_timestamp = zio_handle_io_delay(zio);
739 error = __vdev_disk_physio(vd->vd_bdev, zio,
740 zio->io_size, zio->io_offset, rw, 0);
741 rw_exit(&vd->vd_lock);
744 zio->io_error = error;
751 vdev_disk_io_done(zio_t *zio)
754 * If the device returned EIO, we revalidate the media. If it is
755 * determined the media has changed this triggers the asynchronous
756 * removal of the device from the configuration.
758 if (zio->io_error == EIO) {
759 vdev_t *v = zio->io_vd;
760 vdev_disk_t *vd = v->vdev_tsd;
762 if (check_disk_change(vd->vd_bdev)) {
763 invalidate_bdev(vd->vd_bdev);
764 v->vdev_remove_wanted = B_TRUE;
765 spa_async_request(zio->io_spa, SPA_ASYNC_REMOVE);
771 vdev_disk_hold(vdev_t *vd)
773 ASSERT(spa_config_held(vd->vdev_spa, SCL_STATE, RW_WRITER));
775 /* We must have a pathname, and it must be absolute. */
776 if (vd->vdev_path == NULL || vd->vdev_path[0] != '/')
780 * Only prefetch path and devid info if the device has
783 if (vd->vdev_tsd != NULL)
789 vdev_disk_rele(vdev_t *vd)
791 ASSERT(spa_config_held(vd->vdev_spa, SCL_STATE, RW_WRITER));
793 /* XXX: Implement me as a vnode rele for the device */
796 vdev_ops_t vdev_disk_ops = {
797 .vdev_op_open = vdev_disk_open,
798 .vdev_op_close = vdev_disk_close,
799 .vdev_op_asize = vdev_default_asize,
800 .vdev_op_io_start = vdev_disk_io_start,
801 .vdev_op_io_done = vdev_disk_io_done,
802 .vdev_op_state_change = NULL,
803 .vdev_op_need_resilver = NULL,
804 .vdev_op_hold = vdev_disk_hold,
805 .vdev_op_rele = vdev_disk_rele,
806 .vdev_op_remap = NULL,
807 .vdev_op_xlate = vdev_default_xlate,
808 .vdev_op_type = VDEV_TYPE_DISK, /* name of this vdev type */
809 .vdev_op_leaf = B_TRUE /* leaf vdev */
813 * The zfs_vdev_scheduler module option has been deprecated. Setting this
814 * value no longer has any effect. It has not yet been entirely removed
815 * to allow the module to be loaded if this option is specified in the
816 * /etc/modprobe.d/zfs.conf file. The following warning will be logged.
819 param_set_vdev_scheduler(const char *val, zfs_kernel_param_t *kp)
821 int error = param_set_charp(val, kp);
823 printk(KERN_INFO "The 'zfs_vdev_scheduler' module option "
824 "is not supported.\n");
830 char *zfs_vdev_scheduler = "unused";
831 module_param_call(zfs_vdev_scheduler, param_set_vdev_scheduler,
832 param_get_charp, &zfs_vdev_scheduler, 0644);
833 MODULE_PARM_DESC(zfs_vdev_scheduler, "I/O scheduler");
836 param_set_min_auto_ashift(const char *buf, zfs_kernel_param_t *kp)
841 error = kstrtoull(buf, 0, &val);
843 return (SET_ERROR(error));
845 if (val < ASHIFT_MIN || val > zfs_vdev_max_auto_ashift)
846 return (SET_ERROR(-EINVAL));
848 error = param_set_ulong(buf, kp);
850 return (SET_ERROR(error));
856 param_set_max_auto_ashift(const char *buf, zfs_kernel_param_t *kp)
861 error = kstrtoull(buf, 0, &val);
863 return (SET_ERROR(error));
865 if (val > ASHIFT_MAX || val < zfs_vdev_min_auto_ashift)
866 return (SET_ERROR(-EINVAL));
868 error = param_set_ulong(buf, kp);
870 return (SET_ERROR(error));