diff options
| -rw-r--r-- | fs/btrfs/scrub.c | 504 | ||||
| -rw-r--r-- | fs/btrfs/volumes.h | 2 |
2 files changed, 253 insertions, 253 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 27892f67e69b..29c8aac5bda7 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -42,10 +42,10 @@ */ struct scrub_block; -struct scrub_dev; +struct scrub_ctx; #define SCRUB_PAGES_PER_BIO 16 /* 64k per bio */ -#define SCRUB_BIOS_PER_DEV 16 /* 1 MB per device in flight */ +#define SCRUB_BIOS_PER_CTX 16 /* 1 MB per device in flight */ #define SCRUB_MAX_PAGES_PER_BLOCK 16 /* 64k per node/leaf/sector */ struct scrub_page { @@ -66,7 +66,7 @@ struct scrub_page { struct scrub_bio { int index; - struct scrub_dev *sdev; + struct scrub_ctx *sctx; struct bio *bio; int err; u64 logical; @@ -82,7 +82,7 @@ struct scrub_block { int page_count; atomic_t outstanding_pages; atomic_t ref_count; /* free mem on transition to zero */ - struct scrub_dev *sdev; + struct scrub_ctx *sctx; struct { unsigned int header_error:1; unsigned int checksum_error:1; @@ -91,8 +91,8 @@ struct scrub_block { }; }; -struct scrub_dev { - struct scrub_bio *bios[SCRUB_BIOS_PER_DEV]; +struct scrub_ctx { + struct scrub_bio *bios[SCRUB_BIOS_PER_CTX]; struct btrfs_device *dev; int first_free; int curr; @@ -116,7 +116,7 @@ struct scrub_dev { }; struct scrub_fixup_nodatasum { - struct scrub_dev *sdev; + struct scrub_ctx *sctx; u64 logical; struct btrfs_root *root; struct btrfs_work work; @@ -138,7 +138,7 @@ struct scrub_warning { static int scrub_handle_errored_block(struct scrub_block *sblock_to_check); -static int scrub_setup_recheck_block(struct scrub_dev *sdev, +static int scrub_setup_recheck_block(struct scrub_ctx *sctx, struct btrfs_mapping_tree *map_tree, u64 length, u64 logical, struct scrub_block *sblock); @@ -163,9 +163,9 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock); static int scrub_checksum_super(struct scrub_block *sblock); static void scrub_block_get(struct scrub_block *sblock); static void scrub_block_put(struct scrub_block *sblock); -static int scrub_add_page_to_bio(struct scrub_dev *sdev, +static int scrub_add_page_to_bio(struct scrub_ctx *sctx, struct scrub_page *spage); -static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, +static int scrub_pages(struct scrub_ctx *sctx, u64 logical, u64 len, u64 physical, u64 flags, u64 gen, int mirror_num, u8 *csum, int force); static void scrub_bio_end_io(struct bio *bio, int err); @@ -173,27 +173,27 @@ static void scrub_bio_end_io_worker(struct btrfs_work *work); static void scrub_block_complete(struct scrub_block *sblock); -static void scrub_free_csums(struct scrub_dev *sdev) +static void scrub_free_csums(struct scrub_ctx *sctx) { - while (!list_empty(&sdev->csum_list)) { + while (!list_empty(&sctx->csum_list)) { struct btrfs_ordered_sum *sum; - sum = list_first_entry(&sdev->csum_list, + sum = list_first_entry(&sctx->csum_list, struct btrfs_ordered_sum, list); list_del(&sum->list); kfree(sum); } } -static noinline_for_stack void scrub_free_dev(struct scrub_dev *sdev) +static noinline_for_stack void scrub_free_ctx(struct scrub_ctx *sctx) { int i; - if (!sdev) + if (!sctx) return; /* this can happen when scrub is cancelled */ - if (sdev->curr != -1) { - struct scrub_bio *sbio = sdev->bios[sdev->curr]; + if (sctx->curr != -1) { + struct scrub_bio *sbio = sctx->bios[sctx->curr]; for (i = 0; i < sbio->page_count; i++) { BUG_ON(!sbio->pagev[i]); @@ -203,69 +203,69 @@ static noinline_for_stack void scrub_free_dev(struct scrub_dev *sdev) bio_put(sbio->bio); } - for (i = 0; i < SCRUB_BIOS_PER_DEV; ++i) { - struct scrub_bio *sbio = sdev->bios[i]; + for (i = 0; i < SCRUB_BIOS_PER_CTX; ++i) { + struct scrub_bio *sbio = sctx->bios[i]; if (!sbio) break; kfree(sbio); } - scrub_free_csums(sdev); - kfree(sdev); + scrub_free_csums(sctx); + kfree(sctx); } static noinline_for_stack -struct scrub_dev *scrub_setup_dev(struct btrfs_device *dev) +struct scrub_ctx *scrub_setup_ctx(struct btrfs_device *dev) { - struct scrub_dev *sdev; + struct scrub_ctx *sctx; int i; struct btrfs_fs_info *fs_info = dev->dev_root->fs_info; int pages_per_bio; pages_per_bio = min_t(int, SCRUB_PAGES_PER_BIO, bio_get_nr_vecs(dev->bdev)); - sdev = kzalloc(sizeof(*sdev), GFP_NOFS); - if (!sdev) + sctx = kzalloc(sizeof(*sctx), GFP_NOFS); + if (!sctx) goto nomem; - sdev->dev = dev; - sdev->pages_per_bio = pages_per_bio; - sdev->curr = -1; - for (i = 0; i < SCRUB_BIOS_PER_DEV; ++i) { + sctx->dev = dev; + sctx->pages_per_bio = pages_per_bio; + sctx->curr = -1; + for (i = 0; i < SCRUB_BIOS_PER_CTX; ++i) { struct scrub_bio *sbio; sbio = kzalloc(sizeof(*sbio), GFP_NOFS); if (!sbio) goto nomem; - sdev->bios[i] = sbio; + sctx->bios[i] = sbio; sbio->index = i; - sbio->sdev = sdev; + sbio->sctx = sctx; sbio->page_count = 0; sbio->work.func = scrub_bio_end_io_worker; - if (i != SCRUB_BIOS_PER_DEV-1) - sdev->bios[i]->next_free = i + 1; + if (i != SCRUB_BIOS_PER_CTX - 1) + sctx->bios[i]->next_free = i + 1; else - sdev->bios[i]->next_free = -1; - } - sdev->first_free = 0; - sdev->nodesize = dev->dev_root->nodesize; - sdev->leafsize = dev->dev_root->leafsize; - sdev->sectorsize = dev->dev_root->sectorsize; - atomic_set(&sdev->in_flight, 0); - atomic_set(&sdev->fixup_cnt, 0); - atomic_set(&sdev->cancel_req, 0); - sdev->csum_size = btrfs_super_csum_size(fs_info->super_copy); - INIT_LIST_HEAD(&sdev->csum_list); - - spin_lock_init(&sdev->list_lock); - spin_lock_init(&sdev->stat_lock); - init_waitqueue_head(&sdev->list_wait); - return sdev; + sctx->bios[i]->next_free = -1; + } + sctx->first_free = 0; + sctx->nodesize = dev->dev_root->nodesize; + sctx->leafsize = dev->dev_root->leafsize; + sctx->sectorsize = dev->dev_root->sectorsize; + atomic_set(&sctx->in_flight, 0); + atomic_set(&sctx->fixup_cnt, 0); + atomic_set(&sctx->cancel_req, 0); + sctx->csum_size = btrfs_super_csum_size(fs_info->super_copy); + INIT_LIST_HEAD(&sctx->csum_list); + + spin_lock_init(&sctx->list_lock); + spin_lock_init(&sctx->stat_lock); + init_waitqueue_head(&sctx->list_wait); + return sctx; nomem: - scrub_free_dev(sdev); + scrub_free_ctx(sctx); return ERR_PTR(-ENOMEM); } @@ -345,7 +345,7 @@ err: static void scrub_print_warning(const char *errstr, struct scrub_block *sblock) { - struct btrfs_device *dev = sblock->sdev->dev; + struct btrfs_device *dev = sblock->sctx->dev; struct btrfs_fs_info *fs_info = dev->dev_root->fs_info; struct btrfs_path *path; struct btrfs_key found_key; @@ -530,21 +530,21 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work) { int ret; struct scrub_fixup_nodatasum *fixup; - struct scrub_dev *sdev; + struct scrub_ctx *sctx; struct btrfs_trans_handle *trans = NULL; struct btrfs_fs_info *fs_info; struct btrfs_path *path; int uncorrectable = 0; fixup = container_of(work, struct scrub_fixup_nodatasum, work); - sdev = fixup->sdev; + sctx = fixup->sctx; fs_info = fixup->root->fs_info; path = btrfs_alloc_path(); if (!path) { - spin_lock(&sdev->stat_lock); - ++sdev->stat.malloc_errors; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + ++sctx->stat.malloc_errors; + spin_unlock(&sctx->stat_lock); uncorrectable = 1; goto out; } @@ -573,22 +573,22 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work) } WARN_ON(ret != 1); - spin_lock(&sdev->stat_lock); - ++sdev->stat.corrected_errors; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + ++sctx->stat.corrected_errors; + spin_unlock(&sctx->stat_lock); out: if (trans && !IS_ERR(trans)) btrfs_end_transaction(trans, fixup->root); if (uncorrectable) { - spin_lock(&sdev->stat_lock); - ++sdev->stat.uncorrectable_errors; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + ++sctx->stat.uncorrectable_errors; + spin_unlock(&sctx->stat_lock); printk_ratelimited_in_rcu(KERN_ERR "btrfs: unable to fixup (nodatasum) error at logical %llu on dev %s\n", (unsigned long long)fixup->logical, - rcu_str_deref(sdev->dev->name)); + rcu_str_deref(sctx->dev->name)); } btrfs_free_path(path); @@ -599,9 +599,9 @@ out: atomic_dec(&fs_info->scrubs_running); atomic_dec(&fs_info->scrubs_paused); mutex_unlock(&fs_info->scrub_lock); - atomic_dec(&sdev->fixup_cnt); + atomic_dec(&sctx->fixup_cnt); wake_up(&fs_info->scrub_pause_wait); - wake_up(&sdev->list_wait); + wake_up(&sctx->list_wait); } /* @@ -614,7 +614,7 @@ out: */ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) { - struct scrub_dev *sdev = sblock_to_check->sdev; + struct scrub_ctx *sctx = sblock_to_check->sctx; struct btrfs_fs_info *fs_info; u64 length; u64 logical; @@ -633,7 +633,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) DEFAULT_RATELIMIT_BURST); BUG_ON(sblock_to_check->page_count < 1); - fs_info = sdev->dev->dev_root->fs_info; + fs_info = sctx->dev->dev_root->fs_info; length = sblock_to_check->page_count * PAGE_SIZE; logical = sblock_to_check->pagev[0].logical; generation = sblock_to_check->pagev[0].generation; @@ -677,25 +677,25 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) sizeof(*sblocks_for_recheck), GFP_NOFS); if (!sblocks_for_recheck) { - spin_lock(&sdev->stat_lock); - sdev->stat.malloc_errors++; - sdev->stat.read_errors++; - sdev->stat.uncorrectable_errors++; - spin_unlock(&sdev->stat_lock); - btrfs_dev_stat_inc_and_print(sdev->dev, + spin_lock(&sctx->stat_lock); + sctx->stat.malloc_errors++; + sctx->stat.read_errors++; + sctx->stat.uncorrectable_errors++; + spin_unlock(&sctx->stat_lock); + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_READ_ERRS); goto out; } /* setup the context, map the logical blocks and alloc the pages */ - ret = scrub_setup_recheck_block(sdev, &fs_info->mapping_tree, length, + ret = scrub_setup_recheck_block(sctx, &fs_info->mapping_tree, length, logical, sblocks_for_recheck); if (ret) { - spin_lock(&sdev->stat_lock); - sdev->stat.read_errors++; - sdev->stat.uncorrectable_errors++; - spin_unlock(&sdev->stat_lock); - btrfs_dev_stat_inc_and_print(sdev->dev, + spin_lock(&sctx->stat_lock); + sctx->stat.read_errors++; + sctx->stat.uncorrectable_errors++; + spin_unlock(&sctx->stat_lock); + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_READ_ERRS); goto out; } @@ -704,13 +704,13 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) /* build and submit the bios for the failed mirror, check checksums */ ret = scrub_recheck_block(fs_info, sblock_bad, is_metadata, have_csum, - csum, generation, sdev->csum_size); + csum, generation, sctx->csum_size); if (ret) { - spin_lock(&sdev->stat_lock); - sdev->stat.read_errors++; - sdev->stat.uncorrectable_errors++; - spin_unlock(&sdev->stat_lock); - btrfs_dev_stat_inc_and_print(sdev->dev, + spin_lock(&sctx->stat_lock); + sctx->stat.read_errors++; + sctx->stat.uncorrectable_errors++; + spin_unlock(&sctx->stat_lock); + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_READ_ERRS); goto out; } @@ -725,45 +725,45 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) * different bio (usually one of the two latter cases is * the cause) */ - spin_lock(&sdev->stat_lock); - sdev->stat.unverified_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.unverified_errors++; + spin_unlock(&sctx->stat_lock); goto out; } if (!sblock_bad->no_io_error_seen) { - spin_lock(&sdev->stat_lock); - sdev->stat.read_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.read_errors++; + spin_unlock(&sctx->stat_lock); if (__ratelimit(&_rs)) scrub_print_warning("i/o error", sblock_to_check); - btrfs_dev_stat_inc_and_print(sdev->dev, + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_READ_ERRS); } else if (sblock_bad->checksum_error) { - spin_lock(&sdev->stat_lock); - sdev->stat.csum_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.csum_errors++; + spin_unlock(&sctx->stat_lock); if (__ratelimit(&_rs)) scrub_print_warning("checksum error", sblock_to_check); - btrfs_dev_stat_inc_and_print(sdev->dev, + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_CORRUPTION_ERRS); } else if (sblock_bad->header_error) { - spin_lock(&sdev->stat_lock); - sdev->stat.verify_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.verify_errors++; + spin_unlock(&sctx->stat_lock); if (__ratelimit(&_rs)) scrub_print_warning("checksum/header error", sblock_to_check); if (sblock_bad->generation_error) - btrfs_dev_stat_inc_and_print(sdev->dev, + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_GENERATION_ERRS); else - btrfs_dev_stat_inc_and_print(sdev->dev, + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_CORRUPTION_ERRS); } - if (sdev->readonly) + if (sctx->readonly) goto did_not_correct_error; if (!is_metadata && !have_csum) { @@ -779,7 +779,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) fixup_nodatasum = kzalloc(sizeof(*fixup_nodatasum), GFP_NOFS); if (!fixup_nodatasum) goto did_not_correct_error; - fixup_nodatasum->sdev = sdev; + fixup_nodatasum->sctx = sctx; fixup_nodatasum->logical = logical; fixup_nodatasum->root = fs_info->extent_root; fixup_nodatasum->mirror_num = failed_mirror_index + 1; @@ -796,7 +796,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) atomic_inc(&fs_info->scrubs_running); atomic_inc(&fs_info->scrubs_paused); mutex_unlock(&fs_info->scrub_lock); - atomic_inc(&sdev->fixup_cnt); + atomic_inc(&sctx->fixup_cnt); fixup_nodatasum->work.func = scrub_fixup_nodatasum; btrfs_queue_worker(&fs_info->scrub_workers, &fixup_nodatasum->work); @@ -818,7 +818,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) ret = scrub_recheck_block(fs_info, sblocks_for_recheck + mirror_index, is_metadata, have_csum, csum, - generation, sdev->csum_size); + generation, sctx->csum_size); if (ret) goto did_not_correct_error; } @@ -930,7 +930,7 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) */ ret = scrub_recheck_block(fs_info, sblock_bad, is_metadata, have_csum, csum, - generation, sdev->csum_size); + generation, sctx->csum_size); if (!ret && !sblock_bad->header_error && !sblock_bad->checksum_error && sblock_bad->no_io_error_seen) @@ -939,23 +939,23 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check) goto did_not_correct_error; } else { corrected_error: - spin_lock(&sdev->stat_lock); - sdev->stat.corrected_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.corrected_errors++; + spin_unlock(&sctx->stat_lock); printk_ratelimited_in_rcu(KERN_ERR "btrfs: fixed up error at logical %llu on dev %s\n", (unsigned long long)logical, - rcu_str_deref(sdev->dev->name)); + rcu_str_deref(sctx->dev->name)); } } else { did_not_correct_error: - spin_lock(&sdev->stat_lock); - sdev->stat.uncorrectable_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.uncorrectable_errors++; + spin_unlock(&sctx->stat_lock); printk_ratelimited_in_rcu(KERN_ERR "btrfs: unable to fixup (regular) error at logical %llu on dev %s\n", (unsigned long long)logical, - rcu_str_deref(sdev->dev->name)); + rcu_str_deref(sctx->dev->name)); } out: @@ -978,7 +978,7 @@ out: return 0; } -static int scrub_setup_recheck_block(struct scrub_dev *sdev, +static int scrub_setup_recheck_block(struct scrub_ctx *sctx, struct btrfs_mapping_tree *map_tree, u64 length, u64 logical, struct scrub_block *sblocks_for_recheck) @@ -988,7 +988,7 @@ static int scrub_setup_recheck_block(struct scrub_dev *sdev, int ret; /* - * note: the three members sdev, ref_count and outstanding_pages + * note: the three members sctx, ref_count and outstanding_pages * are not used (and not set) in the blocks that are used for * the recheck procedure */ @@ -1028,9 +1028,9 @@ static int scrub_setup_recheck_block(struct scrub_dev *sdev, page->mirror_num = mirror_index + 1; page->page = alloc_page(GFP_NOFS); if (!page->page) { - spin_lock(&sdev->stat_lock); - sdev->stat.malloc_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.malloc_errors++; + spin_unlock(&sctx->stat_lock); kfree(bbio); return -ENOMEM; } @@ -1259,14 +1259,14 @@ static void scrub_checksum(struct scrub_block *sblock) static int scrub_checksum_data(struct scrub_block *sblock) { - struct scrub_dev *sdev = sblock->sdev; + struct scrub_ctx *sctx = sblock->sctx; u8 csum[BTRFS_CSUM_SIZE]; u8 *on_disk_csum; struct page *page; void *buffer; u32 crc = ~(u32)0; int fail = 0; - struct btrfs_root *root = sdev->dev->dev_root; + struct btrfs_root *root = sctx->dev->dev_root; u64 len; int index; @@ -1278,7 +1278,7 @@ static int scrub_checksum_data(struct scrub_block *sblock) page = sblock->pagev[0].page; buffer = kmap_atomic(page); - len = sdev->sectorsize; + len = sctx->sectorsize; index = 0; for (;;) { u64 l = min_t(u64, len, PAGE_SIZE); @@ -1296,7 +1296,7 @@ static int scrub_checksum_data(struct scrub_block *sblock) } btrfs_csum_final(crc, csum); - if (memcmp(csum, on_disk_csum, sdev->csum_size)) + if (memcmp(csum, on_disk_csum, sctx->csum_size)) fail = 1; return fail; @@ -1304,9 +1304,9 @@ static int scrub_checksum_data(struct scrub_block *sblock) static int scrub_checksum_tree_block(struct scrub_block *sblock) { - struct scrub_dev *sdev = sblock->sdev; + struct scrub_ctx *sctx = sblock->sctx; struct btrfs_header *h; - struct btrfs_root *root = sdev->dev->dev_root; + struct btrfs_root *root = sctx->dev->dev_root; struct btrfs_fs_info *fs_info = root->fs_info; u8 calculated_csum[BTRFS_CSUM_SIZE]; u8 on_disk_csum[BTRFS_CSUM_SIZE]; @@ -1324,7 +1324,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock) page = sblock->pagev[0].page; mapped_buffer = kmap_atomic(page); h = (struct btrfs_header *)mapped_buffer; - memcpy(on_disk_csum, h->csum, sdev->csum_size); + memcpy(on_disk_csum, h->csum, sctx->csum_size); /* * we don't use the getter functions here, as we @@ -1345,8 +1345,8 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock) BTRFS_UUID_SIZE)) ++fail; - BUG_ON(sdev->nodesize != sdev->leafsize); - len = sdev->nodesize - BTRFS_CSUM_SIZE; + BUG_ON(sctx->nodesize != sctx->leafsize); + len = sctx->nodesize - BTRFS_CSUM_SIZE; mapped_size = PAGE_SIZE - BTRFS_CSUM_SIZE; p = ((u8 *)mapped_buffer) + BTRFS_CSUM_SIZE; index = 0; @@ -1368,7 +1368,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock) } btrfs_csum_final(crc, calculated_csum); - if (memcmp(calculated_csum, on_disk_csum, sdev->csum_size)) + if (memcmp(calculated_csum, on_disk_csum, sctx->csum_size)) ++crc_fail; return fail || crc_fail; @@ -1377,8 +1377,8 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock) static int scrub_checksum_super(struct scrub_block *sblock) { struct btrfs_super_block *s; - struct scrub_dev *sdev = sblock->sdev; - struct btrfs_root *root = sdev->dev->dev_root; + struct scrub_ctx *sctx = sblock->sctx; + struct btrfs_root *root = sctx->dev->dev_root; struct btrfs_fs_info *fs_info = root->fs_info; u8 calculated_csum[BTRFS_CSUM_SIZE]; u8 on_disk_csum[BTRFS_CSUM_SIZE]; @@ -1396,7 +1396,7 @@ static int scrub_checksum_super(struct scrub_block *sblock) page = sblock->pagev[0].page; mapped_buffer = kmap_atomic(page); s = (struct btrfs_super_block *)mapped_buffer; - memcpy(on_disk_csum, s->csum, sdev->csum_size); + memcpy(on_disk_csum, s->csum, sctx->csum_size); if (sblock->pagev[0].logical != le64_to_cpu(s->bytenr)) ++fail_cor; @@ -1429,7 +1429,7 @@ static int scrub_checksum_super(struct scrub_block *sblock) } btrfs_csum_final(crc, calculated_csum); - if (memcmp(calculated_csum, on_disk_csum, sdev->csum_size)) + if (memcmp(calculated_csum, on_disk_csum, sctx->csum_size)) ++fail_cor; if (fail_cor + fail_gen) { @@ -1438,14 +1438,14 @@ static int scrub_checksum_super(struct scrub_block *sblock) * They will get written with the next transaction commit * anyway */ - spin_lock(&sdev->stat_lock); - ++sdev->stat.super_errors; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + ++sctx->stat.super_errors; + spin_unlock(&sctx->stat_lock); if (fail_cor) - btrfs_dev_stat_inc_and_print(sdev->dev, + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_CORRUPTION_ERRS); else - btrfs_dev_stat_inc_and_print(sdev->dev, + btrfs_dev_stat_inc_and_print(sctx->dev, BTRFS_DEV_STAT_GENERATION_ERRS); } @@ -1469,21 +1469,21 @@ static void scrub_block_put(struct scrub_block *sblock) } } -static void scrub_submit(struct scrub_dev *sdev) +static void scrub_submit(struct scrub_ctx *sctx) { struct scrub_bio *sbio; - if (sdev->curr == -1) + if (sctx->curr == -1) return; - sbio = sdev->bios[sdev->curr]; - sdev->curr = -1; - atomic_inc(&sdev->in_flight); + sbio = sctx->bios[sctx->curr]; + sctx->curr = -1; + atomic_inc(&sctx->in_flight); btrfsic_submit_bio(READ, sbio->bio); } -static int scrub_add_page_to_bio(struct scrub_dev *sdev, +static int scrub_add_page_to_bio(struct scrub_ctx *sctx, struct scrub_page *spage) { struct scrub_block *sblock = spage->sblock; @@ -1494,20 +1494,20 @@ again: /* * grab a fresh bio or wait for one to become available */ - while (sdev->curr == -1) { - spin_lock(&sdev->list_lock); - sdev->curr = sdev->first_free; - if (sdev->curr != -1) { - sdev->first_free = sdev->bios[sdev->curr]->next_free; - sdev->bios[sdev->curr]->next_free = -1; - sdev->bios[sdev->curr]->page_count = 0; - spin_unlock(&sdev->list_lock); + while (sctx->curr == -1) { + spin_lock(&sctx->list_lock); + sctx->curr = sctx->first_free; + if (sctx->curr != -1) { + sctx->first_free = sctx->bios[sctx->curr]->next_free; + sctx->bios[sctx->curr]->next_free = -1; + sctx->bios[sctx->curr]->page_count = 0; + spin_unlock(&sctx->list_lock); } else { - spin_unlock(&sdev->list_lock); - wait_event(sdev->list_wait, sdev->first_free != -1); + spin_unlock(&sctx->list_lock); + wait_event(sctx->list_wait, sctx->first_free != -1); } } - sbio = sdev->bios[sdev->curr]; + sbio = sctx->bios[sctx->curr]; if (sbio->page_count == 0) { struct bio *bio; @@ -1515,7 +1515,7 @@ again: sbio->logical = spage->logical; bio = sbio->bio; if (!bio) { - bio = bio_alloc(GFP_NOFS, sdev->pages_per_bio); + bio = bio_alloc(GFP_NOFS, sctx->pages_per_bio); if (!bio) return -ENOMEM; sbio->bio = bio; @@ -1523,14 +1523,14 @@ again: bio->bi_private = sbio; bio->bi_end_io = scrub_bio_end_io; - bio->bi_bdev = sdev->dev->bdev; + bio->bi_bdev = sctx->dev->bdev; bio->bi_sector = spage->physical >> 9; sbio->err = 0; } else if (sbio->physical + sbio->page_count * PAGE_SIZE != spage->physical || sbio->logical + sbio->page_count * PAGE_SIZE != spage->logical) { - scrub_submit(sdev); + scrub_submit(sctx); goto again; } @@ -1542,20 +1542,20 @@ again: sbio->bio = NULL; return -EIO; } - scrub_submit(sdev); + scrub_submit(sctx); goto again; } scrub_block_get(sblock); /* one for the added page */ atomic_inc(&sblock->outstanding_pages); sbio->page_count++; - if (sbio->page_count == sdev->pages_per_bio) - scrub_submit(sdev); + if (sbio->page_count == sctx->pages_per_bio) + scrub_submit(sctx); return 0; } -static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, +static int scrub_pages(struct scrub_ctx *sctx, u64 logical, u64 len, u64 physical, u64 flags, u64 gen, int mirror_num, u8 *csum, int force) { @@ -1564,15 +1564,15 @@ static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, sblock = kzalloc(sizeof(*sblock), GFP_NOFS); if (!sblock) { - spin_lock(&sdev->stat_lock); - sdev->stat.malloc_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.malloc_errors++; + spin_unlock(&sctx->stat_lock); return -ENOMEM; } /* one ref inside this function, plus one for each page later on */ atomic_set(&sblock->ref_count, 1); - sblock->sdev = sdev; + sblock->sctx = sctx; sblock->no_io_error_seen = 1; for (index = 0; len > 0; index++) { @@ -1582,9 +1582,9 @@ static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, BUG_ON(index >= SCRUB_MAX_PAGES_PER_BLOCK); spage->page = alloc_page(GFP_NOFS); if (!spage->page) { - spin_lock(&sdev->stat_lock); - sdev->stat.malloc_errors++; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.malloc_errors++; + spin_unlock(&sctx->stat_lock); while (index > 0) { index--; __free_page(sblock->pagev[index].page); @@ -1593,7 +1593,7 @@ static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, return -ENOMEM; } spage->sblock = sblock; - spage->dev = sdev->dev; + spage->dev = sctx->dev; spage->flags = flags; spage->generation = gen; spage->logical = logical; @@ -1601,7 +1601,7 @@ static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, spage->mirror_num = mirror_num; if (csum) { spage->have_csum = 1; - memcpy(spage->csum, csum, sdev->csum_size); + memcpy(spage->csum, csum, sctx->csum_size); } else { spage->have_csum = 0; } @@ -1616,7 +1616,7 @@ static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, struct scrub_page *spage = sblock->pagev + index; int ret; - ret = scrub_add_page_to_bio(sdev, spage); + ret = scrub_add_page_to_bio(sctx, spage); if (ret) { scrub_block_put(sblock); return ret; @@ -1624,7 +1624,7 @@ static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, } if (force) - scrub_submit(sdev); + scrub_submit(sctx); /* last one frees, either here or in bio completion for last page */ scrub_block_put(sblock); @@ -1634,8 +1634,8 @@ static int scrub_pages(struct scrub_dev *sdev, u64 logical, u64 len, static void scrub_bio_end_io(struct bio *bio, int err) { struct scrub_bio *sbio = bio->bi_private; - struct scrub_dev *sdev = sbio->sdev; - struct btrfs_fs_info *fs_info = sdev->dev->dev_root->fs_info; + struct scrub_ctx *sctx = sbio->sctx; + struct btrfs_fs_info *fs_info = sctx->dev->dev_root->fs_info; sbio->err = err; sbio->bio = bio; @@ -1646,7 +1646,7 @@ static void scrub_bio_end_io(struct bio *bio, int err) static void scrub_bio_end_io_worker(struct btrfs_work *work) { struct scrub_bio *sbio = container_of(work, struct scrub_bio, work); - struct scrub_dev *sdev = sbio->sdev; + struct scrub_ctx *sctx = sbio->sctx; int i; BUG_ON(sbio->page_count > SCRUB_PAGES_PER_BIO); @@ -1671,12 +1671,12 @@ static void scrub_bio_end_io_worker(struct btrfs_work *work) bio_put(sbio->bio); sbio->bio = NULL; - spin_lock(&sdev->list_lock); - sbio->next_free = sdev->first_free; - sdev->first_free = sbio->index; - spin_unlock(&sdev->list_lock); - atomic_dec(&sdev->in_flight); - wake_up(&sdev->list_wait); + spin_lock(&sctx->list_lock); + sbio->next_free = sctx->first_free; + sctx->first_free = sbio->index; + spin_unlock(&sctx->list_lock); + atomic_dec(&sctx->in_flight); + wake_up(&sctx->list_wait); } static void scrub_block_complete(struct scrub_block *sblock) @@ -1687,7 +1687,7 @@ static void scrub_block_complete(struct scrub_block *sblock) scrub_checksum(sblock); } -static int scrub_find_csum(struct scrub_dev *sdev, u64 logical, u64 len, +static int scrub_find_csum(struct scrub_ctx *sctx, u64 logical, u64 len, u8 *csum) { struct btrfs_ordered_sum *sum = NULL; @@ -1695,15 +1695,15 @@ static int scrub_find_csum(struct scrub_dev *sdev, u64 logical, u64 len, unsigned long i; unsigned long num_sectors; - while (!list_empty(&sdev->csum_list)) { - sum = list_first_entry(&sdev->csum_list, + while (!list_empty(&sctx->csum_list)) { + sum = list_first_entry(&sctx->csum_list, struct btrfs_ordered_sum, list); if (sum->bytenr > logical) return 0; if (sum->bytenr + sum->len > logical) break; - ++sdev->stat.csum_discards; + ++sctx->stat.csum_discards; list_del(&sum->list); kfree(sum); sum = NULL; @@ -1711,10 +1711,10 @@ static int scrub_find_csum(struct scrub_dev *sdev, u64 logical, u64 len, if (!sum) return 0; - num_sectors = sum->len / sdev->sectorsize; + num_sectors = sum->len / sctx->sectorsize; for (i = 0; i < num_sectors; ++i) { if (sum->sums[i].bytenr == logical) { - memcpy(csum, &sum->sums[i].sum, sdev->csum_size); + memcpy(csum, &sum->sums[i].sum, sctx->csum_size); ret = 1; break; } @@ -1727,7 +1727,7 @@ static int scrub_find_csum(struct scrub_dev *sdev, u64 logical, u64 len, } /* scrub extent tries to collect up to 64 kB for each bio */ -static int scrub_extent(struct scrub_dev *sdev, u64 logical, u64 len, +static int scrub_extent(struct scrub_ctx *sctx, u64 logical, u64 len, u64 physical, u64 flags, u64 gen, int mirror_num) { int ret; @@ -1735,20 +1735,20 @@ static int scrub_extent(struct scrub_dev *sdev, u64 logical, u64 len, u32 blocksize; if (flags & BTRFS_EXTENT_FLAG_DATA) { - blocksize = sdev->sectorsize; - spin_lock(&sdev->stat_lock); - sdev->stat.data_extents_scrubbed++; - sdev->stat.data_bytes_scrubbed += len; - spin_unlock(&sdev->stat_lock); + blocksize = sctx->sectorsize; + spin_lock(&sctx->stat_lock); + sctx->stat.data_extents_scrubbed++; + sctx->stat.data_bytes_scrubbed += len; + spin_unlock(&sctx->stat_lock); } else if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) { - BUG_ON(sdev->nodesize != sdev->leafsize); - blocksize = sdev->nodesize; - spin_lock(&sdev->stat_lock); - sdev->stat.tree_extents_scrubbed++; - sdev->stat.tree_bytes_scrubbed += len; - spin_unlock(&sdev->stat_lock); + BUG_ON(sctx->nodesize != sctx->leafsize); + blocksize = sctx->nodesize; + spin_lock(&sctx->stat_lock); + sctx->stat.tree_extents_scrubbed++; + sctx->stat.tree_bytes_scrubbed += len; + spin_unlock(&sctx->stat_lock); } else { - blocksize = sdev->sectorsize; + blocksize = sctx->sectorsize; BUG_ON(1); } @@ -1758,11 +1758,11 @@ static int scrub_extent(struct scrub_dev *sdev, u64 logical, u64 len, if (flags & BTRFS_EXTENT_FLAG_DATA) { /* push csums to sbio */ - have_csum = scrub_find_csum(sdev, logical, l, csum); + have_csum = scrub_find_csum(sctx, logical, l, csum); if (have_csum == 0) - ++sdev->stat.no_csum; + ++sctx->stat.no_csum; } - ret = scrub_pages(sdev, logical, l, physical, flags, gen, + ret = scrub_pages(sctx, logical, l, physical, flags, gen, mirror_num, have_csum ? csum : NULL, 0); if (ret) return ret; @@ -1773,11 +1773,11 @@ static int scrub_extent(struct scrub_dev *sdev, u64 logical, u64 len, return 0; } -static noinline_for_stack int scrub_stripe(struct scrub_dev *sdev, +static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx, struct map_lookup *map, int num, u64 base, u64 length) { struct btrfs_path *path; - struct btrfs_fs_info *fs_info = sdev->dev->dev_root->fs_info; + struct btrfs_fs_info *fs_info = sctx->dev->dev_root->fs_info; struct btrfs_root *root = fs_info->extent_root; struct btrfs_root *csum_root = fs_info->csum_root; struct btrfs_extent_item *extent; @@ -1843,8 +1843,8 @@ static noinline_for_stack int scrub_stripe(struct scrub_dev *sdev, */ logical = base + offset; - wait_event(sdev->list_wait, - atomic_read(&sdev->in_flight) == 0); + wait_event(sctx->list_wait, + atomic_read(&sctx->in_flight) == 0); atomic_inc(&fs_info->scrubs_paused); wake_up(&fs_info->scrub_pause_wait); @@ -1898,7 +1898,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_dev *sdev, * canceled? */ if (atomic_read(&fs_info->scrub_cancel_req) || - atomic_read(&sdev->cancel_req)) { + atomic_read(&sctx->cancel_req)) { ret = -ECANCELED; goto out; } @@ -1907,9 +1907,9 @@ static noinline_for_stack int scrub_stripe(struct scrub_dev *sdev, */ if (atomic_read(&fs_info->scrub_pause_req)) { /* push queued extents */ - scrub_submit(sdev); - wait_event(sdev->list_wait, - atomic_read(&sdev->in_flight) == 0); + scrub_submit(sctx); + wait_event(sctx->list_wait, + atomic_read(&sctx->in_flight) == 0); atomic_inc(&fs_info->scrubs_paused); wake_up(&fs_info->scrub_pause_wait); mutex_lock(&fs_info->scrub_lock); @@ -1926,7 +1926,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_dev *sdev, ret = btrfs_lookup_csums_range(csum_root, logical, logical + map->stripe_len - 1, - &sdev->csum_list, 1); + &sctx->csum_list, 1); if (ret) goto out; @@ -2004,7 +2004,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_dev *sdev, key.objectid; } - ret = scrub_extent(sdev, key.objectid, key.offset, + ret = scrub_extent(sctx, key.objectid, key.offset, key.objectid - logical + physical, flags, generation, mirror_num); if (ret) @@ -2016,12 +2016,12 @@ next: btrfs_release_path(path); logical += increment; physical += map->stripe_len; - spin_lock(&sdev->stat_lock); - sdev->stat.last_physical = physical; - spin_unlock(&sdev->stat_lock); + spin_lock(&sctx->stat_lock); + sctx->stat.last_physical = physical; + spin_unlock(&sctx->stat_lock); } /* push queued extents */ - scrub_submit(sdev); + scrub_submit(sctx); out: blk_finish_plug(&plug); @@ -2029,12 +2029,12 @@ out: return ret < 0 ? ret : 0; } -static noinline_for_stack int scrub_chunk(struct scrub_dev *sdev, +static noinline_for_stack int scrub_chunk(struct scrub_ctx *sctx, u64 chunk_tree, u64 chunk_objectid, u64 chunk_offset, u64 length, u64 dev_offset) { struct btrfs_mapping_tree *map_tree = - &sdev->dev->dev_root->fs_info->mapping_tree; + &sctx->dev->dev_root->fs_info->mapping_tree; struct map_lookup *map; struct extent_map *em; int i; @@ -2055,9 +2055,9 @@ static noinline_for_stack int scrub_chunk(struct scrub_dev *sdev, goto out; for (i = 0; i < map->num_stripes; ++i) { - if (map->stripes[i].dev == sdev->dev && + if (map->stripes[i].dev == sctx->dev && map->stripes[i].physical == dev_offset) { - ret = scrub_stripe(sdev, map, i, chunk_offset, length); + ret = scrub_stripe(sctx, map, i, chunk_offset, length); if (ret) goto out; } @@ -2069,11 +2069,11 @@ out: } static noinline_for_stack -int scrub_enumerate_chunks(struct scrub_dev *sdev, u64 start, u64 end) +int scrub_enumerate_chunks(struct scrub_ctx *sctx, u64 start, u64 end) { struct btrfs_dev_extent *dev_extent = NULL; struct btrfs_path *path; - struct btrfs_root *root = sdev->dev->dev_root; + struct btrfs_root *root = sctx->dev->dev_root; struct btrfs_fs_info *fs_info = root->fs_info; u64 length; u64 chunk_tree; @@ -2094,7 +2094,7 @@ int scrub_enumerate_chunks(struct scrub_dev *sdev, u64 start, u64 end) path->search_commit_root = 1; path->skip_locking = 1; - key.objectid = sdev->dev->devid; + key.objectid = sctx->dev->devid; key.offset = 0ull; key.type = BTRFS_DEV_EXTENT_KEY; @@ -2117,7 +2117,7 @@ int scrub_enumerate_chunks(struct scrub_dev *sdev, u64 start, u64 end) btrfs_item_key_to_cpu(l, &found_key, slot); - if (found_key.objectid != sdev->dev->devid) + if (found_key.objectid != sctx->dev->devid) break; if (btrfs_key_type(&found_key) != BTRFS_DEV_EXTENT_KEY) @@ -2151,7 +2151,7 @@ int scrub_enumerate_chunks(struct scrub_dev *sdev, u64 start, u64 end) ret = -ENOENT; break; } - ret = scrub_chunk(sdev, chunk_tree, chunk_objectid, + ret = scrub_chunk(sctx, chunk_tree, chunk_objectid, chunk_offset, length, found_key.offset); btrfs_put_block_group(cache); if (ret) @@ -2170,13 +2170,13 @@ int scrub_enumerate_chunks(struct scrub_dev *sdev, u64 start, u64 end) return ret < 0 ? ret : 0; } -static noinline_for_stack int scrub_supers(struct scrub_dev *sdev) +static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx) { int i; u64 bytenr; u64 gen; int ret; - struct btrfs_device *device = sdev->dev; + struct btrfs_device *device = sctx->dev; struct btrfs_root *root = device->dev_root; if (root->fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) @@ -2189,12 +2189,12 @@ static noinline_for_stack int scrub_supers(struct scrub_dev *sdev) if (bytenr + BTRFS_SUPER_INFO_SIZE > device->total_bytes) break; - ret = scrub_pages(sdev, bytenr, BTRFS_SUPER_INFO_SIZE, bytenr, + ret = scrub_pages(sctx, bytenr, BTRFS_SUPER_INFO_SIZE, bytenr, BTRFS_EXTENT_FLAG_SUPER, gen, i, NULL, 1); if (ret) return ret; } - wait_event(sdev->list_wait, atomic_read(&sdev->in_flight) == 0); + wait_event(sctx->list_wait, atomic_read(&sctx->in_flight) == 0); return 0; } @@ -2238,7 +2238,7 @@ static noinline_for_stack void scrub_workers_put(struct btrfs_root *root) int btrfs_scrub_dev(struct btrfs_root *root, u64 devid, u64 start, u64 end, struct btrfs_scrub_progress *progress, int readonly) { - struct scrub_dev *sdev; + struct scrub_ctx *sctx; struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_device *dev; @@ -2302,41 +2302,41 @@ int btrfs_scrub_dev(struct btrfs_root *root, u64 devid, u64 start, u64 end, scrub_workers_put(root); return -EINPROGRESS; } - sdev = scrub_setup_dev(dev); - if (IS_ERR(sdev)) { + sctx = scrub_setup_ctx(dev); + if (IS_ERR(sctx)) { mutex_unlock(&fs_info->scrub_lock); mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); scrub_workers_put(root); - return PTR_ERR(sdev); + return PTR_ERR(sctx); } - sdev->readonly = readonly; - dev->scrub_device = sdev; + sctx->readonly = readonly; + dev->scrub_device = sctx; atomic_inc(&fs_info->scrubs_running); mutex_unlock(&fs_info->scrub_lock); mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); down_read(&fs_info->scrub_super_lock); - ret = scrub_supers(sdev); + ret = scrub_supers(sctx); up_read(&fs_info->scrub_super_lock); if (!ret) - ret = scrub_enumerate_chunks(sdev, start, end); + ret = scrub_enumerate_chunks(sctx, start, end); - wait_event(sdev->list_wait, atomic_read(&sdev->in_flight) == 0); + wait_event(sctx->list_wait, atomic_read(&sctx->in_flight) == 0); atomic_dec(&fs_info->scrubs_running); wake_up(&fs_info->scrub_pause_wait); - wait_event(sdev->list_wait, atomic_read(&sdev->fixup_cnt) == 0); + wait_event(sctx->list_wait, atomic_read(&sctx->fixup_cnt) == 0); if (progress) - memcpy(progress, &sdev->stat, sizeof(*progress)); + memcpy(progress, &sctx->stat, sizeof(*progress)); mutex_lock(&fs_info->scrub_lock); dev->scrub_device = NULL; mutex_unlock(&fs_info->scrub_lock); - scrub_free_dev(sdev); + scrub_free_ctx(sctx); scrub_workers_put(root); return ret; @@ -2407,15 +2407,15 @@ int btrfs_scrub_cancel(struct btrfs_root *root) int btrfs_scrub_cancel_dev(struct btrfs_root *root, struct btrfs_device *dev) { struct btrfs_fs_info *fs_info = root->fs_info; - struct scrub_dev *sdev; + struct scrub_ctx *sctx; mutex_lock(&fs_info->scrub_lock); - sdev = dev->scrub_device; - if (!sdev) { + sctx = dev->scrub_device; + if (!sctx) { mutex_unlock(&fs_info->scrub_lock); return -ENOTCONN; } - atomic_inc(&sdev->cancel_req); + atomic_inc(&sctx->cancel_req); while (dev->scrub_device) { mutex_unlock(&fs_info->scrub_lock); wait_event(fs_info->scrub_pause_wait, @@ -2453,15 +2453,15 @@ int btrfs_scrub_progress(struct btrfs_root *root, u64 devid, struct btrfs_scrub_progress *progress) { struct btrfs_device *dev; - struct scrub_dev *sdev = NULL; + struct scrub_ctx *sctx = NULL; mutex_lock(&root->fs_info->fs_devices->device_list_mutex); dev = btrfs_find_device(root, devid, NULL, NULL); if (dev) - sdev = dev->scrub_device; - if (sdev) - memcpy(progress, &sdev->stat, sizeof(*progress)); + sctx = dev->scrub_device; + if (sctx) + memcpy(progress, &sctx->stat, sizeof(*progress)); mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); - return dev ? (sdev ? 0 : -ENOTCONN) : -ENODEV; + return dev ? (sctx ? 0 : -ENOTCONN) : -ENODEV; } diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 53c06af92e8d..1789cda57efb 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -88,7 +88,7 @@ struct btrfs_device { u8 uuid[BTRFS_UUID_SIZE]; /* per-device scrub information */ - struct scrub_dev *scrub_device; + struct scrub_ctx *scrub_device; struct btrfs_work work; struct rcu_head rcu; |