diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-crypt.c | 50 | ||||
| -rw-r--r-- | drivers/md/dm-emc.c | 17 | ||||
| -rw-r--r-- | drivers/md/dm-io.c | 8 | ||||
| -rw-r--r-- | drivers/md/dm-mpath.c | 4 | ||||
| -rw-r--r-- | drivers/md/dm-raid1.c | 4 | ||||
| -rw-r--r-- | drivers/md/dm-snap.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm-table.c | 28 | ||||
| -rw-r--r-- | drivers/md/dm-zero.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm.c | 34 | ||||
| -rw-r--r-- | drivers/md/dm.h | 1 | ||||
| -rw-r--r-- | drivers/md/faulty.c | 10 | ||||
| -rw-r--r-- | drivers/md/linear.c | 24 | ||||
| -rw-r--r-- | drivers/md/md.c | 82 | ||||
| -rw-r--r-- | drivers/md/multipath.c | 43 | ||||
| -rw-r--r-- | drivers/md/raid0.c | 35 | ||||
| -rw-r--r-- | drivers/md/raid1.c | 64 | ||||
| -rw-r--r-- | drivers/md/raid10.c | 62 | ||||
| -rw-r--r-- | drivers/md/raid5.c | 79 |
18 files changed, 128 insertions, 421 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index bdc52d6922b7..64fee90bb68b 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -441,33 +441,12 @@ static struct bio *crypt_alloc_buffer(struct dm_crypt_io *io, unsigned size) return clone; } -static void crypt_free_buffer_pages(struct crypt_config *cc, - struct bio *clone, unsigned int bytes) +static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone) { - unsigned int i, start, end; + unsigned int i; struct bio_vec *bv; - /* - * This is ugly, but Jens Axboe thinks that using bi_idx in the - * endio function is too dangerous at the moment, so I calculate the - * correct position using bi_vcnt and bi_size. - * The bv_offset and bv_len fields might already be modified but we - * know that we always allocated whole pages. - * A fix to the bi_idx issue in the kernel is in the works, so - * we will hopefully be able to revert to the cleaner solution soon. - */ - i = clone->bi_vcnt - 1; - bv = bio_iovec_idx(clone, i); - end = (i << PAGE_SHIFT) + (bv->bv_offset + bv->bv_len) - clone->bi_size; - start = end - bytes; - - start >>= PAGE_SHIFT; - if (!clone->bi_size) - end = clone->bi_vcnt; - else - end >>= PAGE_SHIFT; - - for (i = start; i < end; i++) { + for (i = 0; i < clone->bi_vcnt; i++) { bv = bio_iovec_idx(clone, i); BUG_ON(!bv->bv_page); mempool_free(bv->bv_page, cc->page_pool); @@ -489,7 +468,7 @@ static void dec_pending(struct dm_crypt_io *io, int error) if (!atomic_dec_and_test(&io->pending)) return; - bio_endio(io->base_bio, io->base_bio->bi_size, io->error); + bio_endio(io->base_bio, io->error); mempool_free(io, cc->io_pool); } @@ -509,25 +488,19 @@ static void kcryptd_queue_io(struct dm_crypt_io *io) queue_work(_kcryptd_workqueue, &io->work); } -static int crypt_endio(struct bio *clone, unsigned int done, int error) +static void crypt_endio(struct bio *clone, int error) { struct dm_crypt_io *io = clone->bi_private; struct crypt_config *cc = io->target->private; unsigned read_io = bio_data_dir(clone) == READ; /* - * free the processed pages, even if - * it's only a partially completed write + * free the processed pages */ - if (!read_io) - crypt_free_buffer_pages(cc, clone, done); - - /* keep going - not finished yet */ - if (unlikely(clone->bi_size)) - return 1; - - if (!read_io) + if (!read_io) { + crypt_free_buffer_pages(cc, clone); goto out; + } if (unlikely(!bio_flagged(clone, BIO_UPTODATE))) { error = -EIO; @@ -537,12 +510,11 @@ static int crypt_endio(struct bio *clone, unsigned int done, int error) bio_put(clone); io->post_process = 1; kcryptd_queue_io(io); - return 0; + return; out: bio_put(clone); dec_pending(io, error); - return error; } static void clone_init(struct dm_crypt_io *io, struct bio *clone) @@ -615,7 +587,7 @@ static void process_write(struct dm_crypt_io *io) ctx.idx_out = 0; if (unlikely(crypt_convert(cc, &ctx) < 0)) { - crypt_free_buffer_pages(cc, clone, clone->bi_size); + crypt_free_buffer_pages(cc, clone); bio_put(clone); dec_pending(io, -EIO); return; diff --git a/drivers/md/dm-emc.c b/drivers/md/dm-emc.c index 265c467854da..342517261ece 100644 --- a/drivers/md/dm-emc.c +++ b/drivers/md/dm-emc.c @@ -38,13 +38,10 @@ static inline void free_bio(struct bio *bio) bio_put(bio); } -static int emc_endio(struct bio *bio, unsigned int bytes_done, int error) +static void emc_endio(struct bio *bio, int error) { struct dm_path *path = bio->bi_private; - if (bio->bi_size) - return 1; - /* We also need to look at the sense keys here whether or not to * switch to the next PG etc. * @@ -57,8 +54,6 @@ static int emc_endio(struct bio *bio, unsigned int bytes_done, int error) /* request is freed in block layer */ free_bio(bio); - - return 0; } static struct bio *get_failover_bio(struct dm_path *path, unsigned data_size) @@ -109,15 +104,7 @@ static struct request *get_failover_req(struct emc_handler *h, return NULL; } - rq->bio = rq->biotail = bio; - blk_rq_bio_prep(q, rq, bio); - - rq->rq_disk = bdev->bd_contains->bd_disk; - - /* bio backed don't set data */ - rq->buffer = rq->data = NULL; - /* rq data_len used for pc cmd's request_bufflen */ - rq->data_len = bio->bi_size; + blk_rq_append_bio(q, rq, bio); rq->sense = h->sense; memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index f3a772486437..b8e342fe7586 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -124,15 +124,11 @@ static void dec_count(struct io *io, unsigned int region, int error) } } -static int endio(struct bio *bio, unsigned int done, int error) +static void endio(struct bio *bio, int error) { struct io *io; unsigned region; - /* keep going until we've finished */ - if (bio->bi_size) - return 1; - if (error && bio_data_dir(bio) == READ) zero_fill_bio(bio); @@ -146,8 +142,6 @@ static int endio(struct bio *bio, unsigned int done, int error) bio_put(bio); dec_count(io, region, error); - - return 0; } /*----------------------------------------------------------------- diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index d6ca9d0a6fd1..31056abca89d 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -390,11 +390,11 @@ static void dispatch_queued_ios(struct multipath *m) r = map_io(m, bio, mpio, 1); if (r < 0) - bio_endio(bio, bio->bi_size, r); + bio_endio(bio, r); else if (r == DM_MAPIO_REMAPPED) generic_make_request(bio); else if (r == DM_MAPIO_REQUEUE) - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); bio = next; } diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 144071e70a93..d09ff15490a5 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -820,7 +820,7 @@ static void write_callback(unsigned long error, void *context) break; } } - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); } static void do_write(struct mirror_set *ms, struct bio *bio) @@ -900,7 +900,7 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes) */ if (unlikely(ms->log_failure)) while ((bio = bio_list_pop(&sync))) - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); else while ((bio = bio_list_pop(&sync))) do_write(ms, bio); diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 83ddbfe6b8a4..98a633f3d6b0 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -636,7 +636,7 @@ static void error_bios(struct bio *bio) while (bio) { n = bio->bi_next; bio->bi_next = NULL; - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); bio = n; } } diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 2bcde5798b5a..fbe477bb2c68 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -999,33 +999,6 @@ void dm_table_unplug_all(struct dm_table *t) } } -int dm_table_flush_all(struct dm_table *t) -{ - struct list_head *d, *devices = dm_table_get_devices(t); - int ret = 0; - unsigned i; - - for (i = 0; i < t->num_targets; i++) - if (t->targets[i].type->flush) - t->targets[i].type->flush(&t->targets[i]); - - for (d = devices->next; d != devices; d = d->next) { - struct dm_dev *dd = list_entry(d, struct dm_dev, list); - struct request_queue *q = bdev_get_queue(dd->bdev); - int err; - - if (!q->issue_flush_fn) - err = -EOPNOTSUPP; - else - err = q->issue_flush_fn(q, dd->bdev->bd_disk, NULL); - - if (!ret) - ret = err; - } - - return ret; -} - struct mapped_device *dm_table_get_md(struct dm_table *t) { dm_get(t->md); @@ -1043,4 +1016,3 @@ EXPORT_SYMBOL(dm_table_get_md); EXPORT_SYMBOL(dm_table_put); EXPORT_SYMBOL(dm_table_get); EXPORT_SYMBOL(dm_table_unplug_all); -EXPORT_SYMBOL(dm_table_flush_all); diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c index f314d7dc9c26..bdec206c404b 100644 --- a/drivers/md/dm-zero.c +++ b/drivers/md/dm-zero.c @@ -43,7 +43,7 @@ static int zero_map(struct dm_target *ti, struct bio *bio, break; } - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); /* accepted bio, don't make new request */ return DM_MAPIO_SUBMITTED; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 2120155929a6..d837d37f6209 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -484,23 +484,20 @@ static void dec_pending(struct dm_io *io, int error) blk_add_trace_bio(io->md->queue, io->bio, BLK_TA_COMPLETE); - bio_endio(io->bio, io->bio->bi_size, io->error); + bio_endio(io->bio, io->error); } free_io(io->md, io); } } -static int clone_endio(struct bio *bio, unsigned int done, int error) +static void clone_endio(struct bio *bio, int error) { int r = 0; struct dm_target_io *tio = bio->bi_private; struct mapped_device *md = tio->io->md; dm_endio_fn endio = tio->ti->type->end_io; - if (bio->bi_size) - return 1; - if (!bio_flagged(bio, BIO_UPTODATE) && !error) error = -EIO; @@ -514,7 +511,7 @@ static int clone_endio(struct bio *bio, unsigned int done, int error) error = r; else if (r == DM_ENDIO_INCOMPLETE) /* The target will handle the io */ - return 1; + return; else if (r) { DMWARN("unimplemented target endio return value: %d", r); BUG(); @@ -530,7 +527,6 @@ static int clone_endio(struct bio *bio, unsigned int done, int error) bio_put(bio); free_tio(md, tio); - return r; } static sector_t max_io_len(struct mapped_device *md, @@ -761,7 +757,7 @@ static void __split_bio(struct mapped_device *md, struct bio *bio) ci.map = dm_get_table(md); if (!ci.map) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return; } @@ -803,7 +799,7 @@ static int dm_request(struct request_queue *q, struct bio *bio) * guarantee it is (or can be) handled by the targets correctly. */ if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -820,13 +816,13 @@ static int dm_request(struct request_queue *q, struct bio *bio) up_read(&md->io_lock); if (bio_rw(bio) == READA) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } r = queue_io(md, bio); if (r < 0) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } else if (r == 0) @@ -844,21 +840,6 @@ static int dm_request(struct request_queue *q, struct bio *bio) return 0; } -static int dm_flush_all(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - struct mapped_device *md = q->queuedata; - struct dm_table *map = dm_get_table(md); - int ret = -ENXIO; - - if (map) { - ret = dm_table_flush_all(map); - dm_table_put(map); - } - - return ret; -} - static void dm_unplug_all(struct request_queue *q) { struct mapped_device *md = q->queuedata; @@ -1007,7 +988,6 @@ static struct mapped_device *alloc_dev(int minor) blk_queue_make_request(md->queue, dm_request); blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY); md->queue->unplug_fn = dm_unplug_all; - md->queue->issue_flush_fn = dm_flush_all; md->io_pool = mempool_create_slab_pool(MIN_IOS, _io_cache); if (!md->io_pool) diff --git a/drivers/md/dm.h b/drivers/md/dm.h index 462ee652a890..4b3faa45277e 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -111,7 +111,6 @@ void dm_table_postsuspend_targets(struct dm_table *t); int dm_table_resume_targets(struct dm_table *t); int dm_table_any_congested(struct dm_table *t, int bdi_bits); void dm_table_unplug_all(struct dm_table *t); -int dm_table_flush_all(struct dm_table *t); /*----------------------------------------------------------------- * A registry of target types. diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index cb059cf14c2e..cf2ddce34118 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -65,18 +65,16 @@ #include <linux/raid/md.h> -static int faulty_fail(struct bio *bio, unsigned int bytes_done, int error) +static void faulty_fail(struct bio *bio, int error) { struct bio *b = bio->bi_private; b->bi_size = bio->bi_size; b->bi_sector = bio->bi_sector; - if (bio->bi_size == 0) - bio_put(bio); + bio_put(bio); - clear_bit(BIO_UPTODATE, &b->bi_flags); - return (b->bi_end_io)(b, bytes_done, -EIO); + bio_io_error(b); } typedef struct faulty_conf { @@ -179,7 +177,7 @@ static int make_request(struct request_queue *q, struct bio *bio) /* special case - don't decrement, don't generic_make_request, * just fail immediately */ - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); return 0; } diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 17f795c3e0ab..56a11f6c127b 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -92,25 +92,6 @@ static void linear_unplug(struct request_queue *q) } } -static int linear_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - linear_conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - for (i=0; i < mddev->raid_disks && ret == 0; i++) { - struct block_device *bdev = conf->disks[i].rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, error_sector); - } - return ret; -} - static int linear_congested(void *data, int bits) { mddev_t *mddev = data; @@ -279,7 +260,6 @@ static int linear_run (mddev_t *mddev) blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec); mddev->queue->unplug_fn = linear_unplug; - mddev->queue->issue_flush_fn = linear_issue_flush; mddev->queue->backing_dev_info.congested_fn = linear_congested; mddev->queue->backing_dev_info.congested_data = mddev; return 0; @@ -338,7 +318,7 @@ static int linear_make_request (struct request_queue *q, struct bio *bio) sector_t block; if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -358,7 +338,7 @@ static int linear_make_request (struct request_queue *q, struct bio *bio) bdevname(tmp_dev->rdev->bdev, b), (unsigned long long)tmp_dev->size, (unsigned long long)tmp_dev->offset); - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } if (unlikely(bio->bi_sector + (bio->bi_size >> 9) > diff --git a/drivers/md/md.c b/drivers/md/md.c index f883b7e37f3d..808cd9549456 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -213,7 +213,7 @@ static DEFINE_SPINLOCK(all_mddevs_lock); static int md_fail_request (struct request_queue *q, struct bio *bio) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } @@ -384,12 +384,10 @@ static void free_disk_sb(mdk_rdev_t * rdev) } -static int super_written(struct bio *bio, unsigned int bytes_done, int error) +static void super_written(struct bio *bio, int error) { mdk_rdev_t *rdev = bio->bi_private; mddev_t *mddev = rdev->mddev; - if (bio->bi_size) - return 1; if (error || !test_bit(BIO_UPTODATE, &bio->bi_flags)) { printk("md: super_written gets error=%d, uptodate=%d\n", @@ -401,16 +399,13 @@ static int super_written(struct bio *bio, unsigned int bytes_done, int error) if (atomic_dec_and_test(&mddev->pending_writes)) wake_up(&mddev->sb_wait); bio_put(bio); - return 0; } -static int super_written_barrier(struct bio *bio, unsigned int bytes_done, int error) +static void super_written_barrier(struct bio *bio, int error) { struct bio *bio2 = bio->bi_private; mdk_rdev_t *rdev = bio2->bi_private; mddev_t *mddev = rdev->mddev; - if (bio->bi_size) - return 1; if (!test_bit(BIO_UPTODATE, &bio->bi_flags) && error == -EOPNOTSUPP) { @@ -424,11 +419,11 @@ static int super_written_barrier(struct bio *bio, unsigned int bytes_done, int e spin_unlock_irqrestore(&mddev->write_lock, flags); wake_up(&mddev->sb_wait); bio_put(bio); - return 0; + } else { + bio_put(bio2); + bio->bi_private = rdev; + super_written(bio, error); } - bio_put(bio2); - bio->bi_private = rdev; - return super_written(bio, bytes_done, error); } void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, @@ -489,13 +484,9 @@ void md_super_wait(mddev_t *mddev) finish_wait(&mddev->sb_wait, &wq); } -static int bi_complete(struct bio *bio, unsigned int bytes_done, int error) +static void bi_complete(struct bio *bio, int error) { - if (bio->bi_size) - return 1; - complete((struct completion*)bio->bi_private); - return 0; } int sync_page_io(struct block_device *bdev, sector_t sector, int size, @@ -2723,7 +2714,7 @@ action_show(mddev_t *mddev, char *page) { char *type = "idle"; if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) || - test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) { + (!mddev->ro && test_bit(MD_RECOVERY_NEEDED, &mddev->recovery))) { if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) type = "reshape"; else if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) { @@ -2842,6 +2833,12 @@ sync_max_store(mddev_t *mddev, const char *buf, size_t len) static struct md_sysfs_entry md_sync_max = __ATTR(sync_speed_max, S_IRUGO|S_IWUSR, sync_max_show, sync_max_store); +static ssize_t +degraded_show(mddev_t *mddev, char *page) +{ + return sprintf(page, "%d\n", mddev->degraded); +} +static struct md_sysfs_entry md_degraded = __ATTR_RO(degraded); static ssize_t sync_speed_show(mddev_t *mddev, char *page) @@ -2985,6 +2982,7 @@ static struct attribute *md_redundancy_attrs[] = { &md_suspend_lo.attr, &md_suspend_hi.attr, &md_bitmap.attr, + &md_degraded.attr, NULL, }; static struct attribute_group md_redundancy_group = { @@ -3085,8 +3083,7 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data) mddev->gendisk = disk; mutex_unlock(&disks_mutex); mddev->kobj.parent = &disk->kobj; - mddev->kobj.k_name = NULL; - snprintf(mddev->kobj.name, KOBJ_NAME_LEN, "%s", "md"); + kobject_set_name(&mddev->kobj, "%s", "md"); mddev->kobj.ktype = &md_ktype; if (kobject_register(&mddev->kobj)) printk(KERN_WARNING "md: cannot register %s/md - name in use\n", @@ -3473,7 +3470,6 @@ static int do_md_stop(mddev_t * mddev, int mode) mddev->pers->stop(mddev); mddev->queue->merge_bvec_fn = NULL; mddev->queue->unplug_fn = NULL; - mddev->queue->issue_flush_fn = NULL; mddev->queue->backing_dev_info.congested_fn = NULL; if (mddev->pers->sync_request) sysfs_remove_group(&mddev->kobj, &md_redundancy_group); @@ -4721,7 +4717,7 @@ mdk_thread_t *md_register_thread(void (*run) (mddev_t *), mddev_t *mddev, void md_unregister_thread(mdk_thread_t *thread) { - dprintk("interrupting MD-thread pid %d\n", thread->tsk->pid); + dprintk("interrupting MD-thread pid %d\n", task_pid_nr(thread->tsk)); kthread_stop(thread->tsk); kfree(thread); @@ -5781,26 +5777,47 @@ static int __init md_init(void) * Searches all registered partitions for autorun RAID arrays * at boot time. */ -static dev_t detected_devices[128]; -static int dev_cnt; + +static LIST_HEAD(all_detected_devices); +struct detected_devices_node { + struct list_head list; + dev_t dev; +}; void md_autodetect_dev(dev_t dev) { - if (dev_cnt >= 0 && dev_cnt < 127) - detected_devices[dev_cnt++] = dev; + struct detected_devices_node *node_detected_dev; + + node_detected_dev = kzalloc(sizeof(*node_detected_dev), GFP_KERNEL); + if (node_detected_dev) { + node_detected_dev->dev = dev; + list_add_tail(&node_detected_dev->list, &all_detected_devices); + } else { + printk(KERN_CRIT "md: md_autodetect_dev: kzalloc failed" + ", skipping dev(%d,%d)\n", MAJOR(dev), MINOR(dev)); + } } static void autostart_arrays(int part) { mdk_rdev_t *rdev; - int i; + struct detected_devices_node *node_detected_dev; + dev_t dev; + int i_scanned, i_passed; - printk(KERN_INFO "md: Autodetecting RAID arrays.\n"); + i_scanned = 0; + i_passed = 0; - for (i = 0; i < dev_cnt; i++) { - dev_t dev = detected_devices[i]; + printk(KERN_INFO "md: Autodetecting RAID arrays.\n"); + while (!list_empty(&all_detected_devices) && i_scanned < INT_MAX) { + i_scanned++; + node_detected_dev = list_entry(all_detected_devices.next, + struct detected_devices_node, list); + list_del(&node_detected_dev->list); + dev = node_detected_dev->dev; + kfree(node_detected_dev); rdev = md_import_device(dev,0, 90); if (IS_ERR(rdev)) continue; @@ -5810,8 +5827,11 @@ static void autostart_arrays(int part) continue; } list_add(&rdev->same_set, &pending_raid_disks); + i_passed++; } - dev_cnt = 0; + + printk(KERN_INFO "md: Scanned %d and added %d devices.\n", + i_scanned, i_passed); autorun_devices(part); } diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 1e2af43a73b9..b35731cceac6 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -82,21 +82,17 @@ static void multipath_end_bh_io (struct multipath_bh *mp_bh, int err) struct bio *bio = mp_bh->master_bio; multipath_conf_t *conf = mddev_to_conf(mp_bh->mddev); - bio_endio(bio, bio->bi_size, err); + bio_endio(bio, err); mempool_free(mp_bh, conf->pool); } -static int multipath_end_request(struct bio *bio, unsigned int bytes_done, - int error) +static void multipath_end_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct multipath_bh * mp_bh = (struct multipath_bh *)(bio->bi_private); multipath_conf_t *conf = mddev_to_conf(mp_bh->mddev); mdk_rdev_t *rdev = conf->multipaths[mp_bh->path].rdev; - if (bio->bi_size) - return 1; - if (uptodate) multipath_end_bh_io(mp_bh, 0); else if (!bio_rw_ahead(bio)) { @@ -112,7 +108,6 @@ static int multipath_end_request(struct bio *bio, unsigned int bytes_done, } else multipath_end_bh_io(mp_bh, error); rdev_dec_pending(rdev, conf->mddev); - return 0; } static void unplug_slaves(mddev_t *mddev) @@ -155,7 +150,7 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio) const int rw = bio_data_dir(bio); if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -169,7 +164,7 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio) mp_bh->path = multipath_map(conf); if (mp_bh->path < 0) { - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); mempool_free(mp_bh, conf->pool); return 0; } @@ -199,35 +194,6 @@ static void multipath_status (struct seq_file *seq, mddev_t *mddev) seq_printf (seq, "]"); } -static int multipath_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - multipath_conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} static int multipath_congested(void *data, int bits) { mddev_t *mddev = data; @@ -532,7 +498,6 @@ static int multipath_run (mddev_t *mddev) mddev->array_size = mddev->size; mddev->queue->unplug_fn = multipath_unplug; - mddev->queue->issue_flush_fn = multipath_issue_flush; mddev->queue->backing_dev_info.congested_fn = multipath_congested; mddev->queue->backing_dev_info.congested_data = mddev; diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index b8216bc6db45..c111105fc2dc 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -40,26 +40,6 @@ static void raid0_unplug(struct request_queue *q) } } -static int raid0_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - raid0_conf_t *conf = mddev_to_conf(mddev); - mdk_rdev_t **devlist = conf->strip_zone[0].dev; - int i, ret = 0; - - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - struct block_device *bdev = devlist[i]->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, error_sector); - } - return ret; -} - static int raid0_congested(void *data, int bits) { mddev_t *mddev = data; @@ -250,7 +230,6 @@ static int create_strip_zones (mddev_t *mddev) mddev->queue->unplug_fn = raid0_unplug; - mddev->queue->issue_flush_fn = raid0_issue_flush; mddev->queue->backing_dev_info.congested_fn = raid0_congested; mddev->queue->backing_dev_info.congested_data = mddev; @@ -420,7 +399,7 @@ static int raid0_make_request (struct request_queue *q, struct bio *bio) const int rw = bio_data_dir(bio); if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -490,10 +469,10 @@ bad_map: " or bigger than %dk %llu %d\n", chunk_size, (unsigned long long)bio->bi_sector, bio->bi_size >> 10); - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } - + static void raid0_status (struct seq_file *seq, mddev_t *mddev) { #undef MD_DEBUG @@ -501,18 +480,18 @@ static void raid0_status (struct seq_file *seq, mddev_t *mddev) int j, k, h; char b[BDEVNAME_SIZE]; raid0_conf_t *conf = mddev_to_conf(mddev); - + h = 0; for (j = 0; j < conf->nr_strip_zones; j++) { seq_printf(seq, " z%d", j); if (conf->hash_table[h] == conf->strip_zone+j) - seq_printf("(h%d)", h++); + seq_printf(seq, "(h%d)", h++); seq_printf(seq, "=["); for (k = 0; k < conf->strip_zone[j].nb_dev; k++) - seq_printf (seq, "%s/", bdevname( + seq_printf(seq, "%s/", bdevname( conf->strip_zone[j].dev[k]->bdev,b)); - seq_printf (seq, "] zo=%d do=%d s=%d\n", + seq_printf(seq, "] zo=%d do=%d s=%d\n", conf->strip_zone[j].zone_offset, conf->strip_zone[j].dev_offset, conf->strip_zone[j].size); diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index f33a729960ca..16775a0df7f6 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -238,7 +238,7 @@ static void raid_end_bio_io(r1bio_t *r1_bio) (unsigned long long) bio->bi_sector + (bio->bi_size >> 9) - 1); - bio_endio(bio, bio->bi_size, + bio_endio(bio, test_bit(R1BIO_Uptodate, &r1_bio->state) ? 0 : -EIO); } free_r1bio(r1_bio); @@ -255,16 +255,13 @@ static inline void update_head_pos(int disk, r1bio_t *r1_bio) r1_bio->sector + (r1_bio->sectors); } -static int raid1_end_read_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid1_end_read_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); int mirror; conf_t *conf = mddev_to_conf(r1_bio->mddev); - if (bio->bi_size) - return 1; - mirror = r1_bio->read_disk; /* * this branch is our 'one mirror IO has finished' event handler: @@ -301,10 +298,9 @@ static int raid1_end_read_request(struct bio *bio, unsigned int bytes_done, int } rdev_dec_pending(conf->mirrors[mirror].rdev, conf->mddev); - return 0; } -static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid1_end_write_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); @@ -312,8 +308,6 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int conf_t *conf = mddev_to_conf(r1_bio->mddev); struct bio *to_put = NULL; - if (bio->bi_size) - return 1; for (mirror = 0; mirror < conf->raid_disks; mirror++) if (r1_bio->bios[mirror] == bio) @@ -366,7 +360,7 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int (unsigned long long) mbio->bi_sector, (unsigned long long) mbio->bi_sector + (mbio->bi_size >> 9) - 1); - bio_endio(mbio, mbio->bi_size, 0); + bio_endio(mbio, 0); } } } @@ -400,8 +394,6 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int if (to_put) bio_put(to_put); - - return 0; } @@ -575,36 +567,6 @@ static void raid1_unplug(struct request_queue *q) md_wakeup_thread(mddev->thread); } -static int raid1_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} - static int raid1_congested(void *data, int bits) { mddev_t *mddev = data; @@ -796,7 +758,7 @@ static int make_request(struct request_queue *q, struct bio * bio) if (unlikely(!mddev->barriers_work && bio_barrier(bio))) { if (rw == WRITE) md_write_end(mddev); - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -1137,14 +1099,11 @@ abort: } -static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_read(struct bio *bio, int error) { r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); int i; - if (bio->bi_size) - return 1; - for (i=r1_bio->mddev->raid_disks; i--; ) if (r1_bio->bios[i] == bio) break; @@ -1160,10 +1119,9 @@ static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) if (atomic_dec_and_test(&r1_bio->remaining)) reschedule_retry(r1_bio); - return 0; } -static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_write(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); @@ -1172,9 +1130,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) int i; int mirror=0; - if (bio->bi_size) - return 1; - for (i = 0; i < conf->raid_disks; i++) if (r1_bio->bios[i] == bio) { mirror = i; @@ -1200,7 +1155,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) md_done_sync(mddev, r1_bio->sectors, uptodate); put_buf(r1_bio); } - return 0; } static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) @@ -1260,7 +1214,8 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) j = 0; if (j >= 0) mddev->resync_mismatches += r1_bio->sectors; - if (j < 0 || test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) { + if (j < 0 || (test_bit(MD_RECOVERY_CHECK, &mddev->recovery) + && test_bit(BIO_UPTODATE, &sbio->bi_flags))) { sbio->bi_end_io = NULL; rdev_dec_pending(conf->mirrors[i].rdev, mddev); } else { @@ -2013,7 +1968,6 @@ static int run(mddev_t *mddev) mddev->array_size = mddev->size; mddev->queue->unplug_fn = raid1_unplug; - mddev->queue->issue_flush_fn = raid1_issue_flush; mddev->queue->backing_dev_info.congested_fn = raid1_congested; mddev->queue->backing_dev_info.congested_data = mddev; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 4e53792aa520..fc6607acb6e4 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -227,7 +227,7 @@ static void raid_end_bio_io(r10bio_t *r10_bio) { struct bio *bio = r10_bio->master_bio; - bio_endio(bio, bio->bi_size, + bio_endio(bio, test_bit(R10BIO_Uptodate, &r10_bio->state) ? 0 : -EIO); free_r10bio(r10_bio); } @@ -243,15 +243,13 @@ static inline void update_head_pos(int slot, r10bio_t *r10_bio) r10_bio->devs[slot].addr + (r10_bio->sectors); } -static int raid10_end_read_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid10_end_read_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); int slot, dev; conf_t *conf = mddev_to_conf(r10_bio->mddev); - if (bio->bi_size) - return 1; slot = r10_bio->read_slot; dev = r10_bio->devs[slot].devnum; @@ -284,19 +282,15 @@ static int raid10_end_read_request(struct bio *bio, unsigned int bytes_done, int } rdev_dec_pending(conf->mirrors[dev].rdev, conf->mddev); - return 0; } -static int raid10_end_write_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid10_end_write_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); int slot, dev; conf_t *conf = mddev_to_conf(r10_bio->mddev); - if (bio->bi_size) - return 1; - for (slot = 0; slot < conf->copies; slot++) if (r10_bio->devs[slot].bio == bio) break; @@ -339,7 +333,6 @@ static int raid10_end_write_request(struct bio *bio, unsigned int bytes_done, in } rdev_dec_pending(conf->mirrors[dev].rdev, conf->mddev); - return 0; } @@ -618,36 +611,6 @@ static void raid10_unplug(struct request_queue *q) md_wakeup_thread(mddev->thread); } -static int raid10_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} - static int raid10_congested(void *data, int bits) { mddev_t *mddev = data; @@ -787,7 +750,7 @@ static int make_request(struct request_queue *q, struct bio * bio) unsigned long flags; if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -819,7 +782,7 @@ static int make_request(struct request_queue *q, struct bio * bio) " or bigger than %dk %llu %d\n", chunk_sects/2, (unsigned long long)bio->bi_sector, bio->bi_size >> 10); - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } @@ -1155,15 +1118,12 @@ abort: } -static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_read(struct bio *bio, int error) { r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); conf_t *conf = mddev_to_conf(r10_bio->mddev); int i,d; - if (bio->bi_size) - return 1; - for (i=0; i<conf->copies; i++) if (r10_bio->devs[i].bio == bio) break; @@ -1192,10 +1152,9 @@ static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) reschedule_retry(r10_bio); } rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev); - return 0; } -static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_write(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); @@ -1203,9 +1162,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) conf_t *conf = mddev_to_conf(mddev); int i,d; - if (bio->bi_size) - return 1; - for (i = 0; i < conf->copies; i++) if (r10_bio->devs[i].bio == bio) break; @@ -1228,7 +1184,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) } } rdev_dec_pending(conf->mirrors[d].rdev, mddev); - return 0; } /* @@ -1374,7 +1329,7 @@ static void recovery_request_write(mddev_t *mddev, r10bio_t *r10_bio) if (test_bit(R10BIO_Uptodate, &r10_bio->state)) generic_make_request(wbio); else - bio_endio(wbio, wbio->bi_size, -EIO); + bio_endio(wbio, -EIO); } @@ -2133,7 +2088,6 @@ static int run(mddev_t *mddev) mddev->resync_max_sectors = size << conf->chunk_shift; mddev->queue->unplug_fn = raid10_unplug; - mddev->queue->issue_flush_fn = raid10_issue_flush; mddev->queue->backing_dev_info.congested_fn = raid10_congested; mddev->queue->backing_dev_info.congested_data = mddev; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f96dea975fa5..8ee181a01f52 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -108,12 +108,11 @@ static void return_io(struct bio *return_bi) { struct bio *bi = return_bi; while (bi) { - int bytes = bi->bi_size; return_bi = bi->bi_next; bi->bi_next = NULL; bi->bi_size = 0; - bi->bi_end_io(bi, bytes, + bi->bi_end_io(bi, test_bit(BIO_UPTODATE, &bi->bi_flags) ? 0 : -EIO); bi = return_bi; @@ -382,10 +381,10 @@ static unsigned long get_stripe_work(struct stripe_head *sh) return pending; } -static int -raid5_end_read_request(struct bio *bi, unsigned int bytes_done, int error); -static int -raid5_end_write_request (struct bio *bi, unsigned int bytes_done, int error); +static void +raid5_end_read_request(struct bio *bi, int error); +static void +raid5_end_write_request(struct bio *bi, int error); static void ops_run_io(struct stripe_head *sh) { @@ -1110,8 +1109,7 @@ static void shrink_stripes(raid5_conf_t *conf) conf->slab_cache = NULL; } -static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, - int error) +static void raid5_end_read_request(struct bio * bi, int error) { struct stripe_head *sh = bi->bi_private; raid5_conf_t *conf = sh->raid_conf; @@ -1120,8 +1118,6 @@ static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, char b[BDEVNAME_SIZE]; mdk_rdev_t *rdev; - if (bi->bi_size) - return 1; for (i=0 ; i<disks; i++) if (bi == &sh->dev[i].req) @@ -1132,7 +1128,7 @@ static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, uptodate); if (i == disks) { BUG(); - return 0; + return; } if (uptodate) { @@ -1185,20 +1181,15 @@ static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, clear_bit(R5_LOCKED, &sh->dev[i].flags); set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); - return 0; } -static int raid5_end_write_request (struct bio *bi, unsigned int bytes_done, - int error) +static void raid5_end_write_request (struct bio *bi, int error) { struct stripe_head *sh = bi->bi_private; raid5_conf_t *conf = sh->raid_conf; int disks = sh->disks, i; int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags); - if (bi->bi_size) - return 1; - for (i=0 ; i<disks; i++) if (bi == &sh->dev[i].req) break; @@ -1208,7 +1199,7 @@ static int raid5_end_write_request (struct bio *bi, unsigned int bytes_done, uptodate); if (i == disks) { BUG(); - return 0; + return; } if (!uptodate) @@ -1219,7 +1210,6 @@ static int raid5_end_write_request (struct bio *bi, unsigned int bytes_done, clear_bit(R5_LOCKED, &sh->dev[i].flags); set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); - return 0; } @@ -3214,36 +3204,6 @@ static void raid5_unplug_device(struct request_queue *q) unplug_slaves(mddev); } -static int raid5_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - raid5_conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} - static int raid5_congested(void *data, int bits) { mddev_t *mddev = data; @@ -3340,7 +3300,7 @@ static struct bio *remove_bio_from_retry(raid5_conf_t *conf) * first). * If the read failed.. */ -static int raid5_align_endio(struct bio *bi, unsigned int bytes, int error) +static void raid5_align_endio(struct bio *bi, int error) { struct bio* raid_bi = bi->bi_private; mddev_t *mddev; @@ -3348,8 +3308,6 @@ static int raid5_align_endio(struct bio *bi, unsigned int bytes, int error) int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags); mdk_rdev_t *rdev; - if (bi->bi_size) - return 1; bio_put(bi); mddev = raid_bi->bi_bdev->bd_disk->queue->queuedata; @@ -3360,17 +3318,16 @@ static int raid5_align_endio(struct bio *bi, unsigned int bytes, int error) rdev_dec_pending(rdev, conf->mddev); if (!error && uptodate) { - bio_endio(raid_bi, bytes, 0); + bio_endio(raid_bi, 0); if (atomic_dec_and_test(&conf->active_aligned_reads)) wake_up(&conf->wait_for_stripe); - return 0; + return; } pr_debug("raid5_align_endio : io error...handing IO for a retry\n"); add_bio_to_retry(raid_bi, conf); - return 0; } static int bio_fits_rdev(struct bio *bi) @@ -3476,7 +3433,7 @@ static int make_request(struct request_queue *q, struct bio * bi) int remaining; if (unlikely(bio_barrier(bi))) { - bio_endio(bi, bi->bi_size, -EOPNOTSUPP); + bio_endio(bi, -EOPNOTSUPP); return 0; } @@ -3592,12 +3549,11 @@ static int make_request(struct request_queue *q, struct bio * bi) remaining = --bi->bi_phys_segments; spin_unlock_irq(&conf->device_lock); if (remaining == 0) { - int bytes = bi->bi_size; if ( rw == WRITE ) md_write_end(mddev); - bi->bi_size = 0; - bi->bi_end_io(bi, bytes, + + bi->bi_end_io(bi, test_bit(BIO_UPTODATE, &bi->bi_flags) ? 0 : -EIO); } @@ -3875,10 +3831,8 @@ static int retry_aligned_read(raid5_conf_t *conf, struct bio *raid_bio) remaining = --raid_bio->bi_phys_segments; spin_unlock_irq(&conf->device_lock); if (remaining == 0) { - int bytes = raid_bio->bi_size; - raid_bio->bi_size = 0; - raid_bio->bi_end_io(raid_bio, bytes, + raid_bio->bi_end_io(raid_bio, test_bit(BIO_UPTODATE, &raid_bio->bi_flags) ? 0 : -EIO); } @@ -4279,7 +4233,6 @@ static int run(mddev_t *mddev) mdname(mddev)); mddev->queue->unplug_fn = raid5_unplug_device; - mddev->queue->issue_flush_fn = raid5_issue_flush; mddev->queue->backing_dev_info.congested_data = mddev; mddev->queue->backing_dev_info.congested_fn = raid5_congested; |