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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-19 22:11:26 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-19 22:11:26 +0200 |
commit | d2b1c81f5f6c3427bd900be5fed306ca83d649d4 (patch) | |
tree | b678c7fe0a28c205aca3b5a6fe6f7a9ff0bf7295 /drivers | |
parent | Merge tag 'libata-5.8-2020-06-19' of git://git.kernel.dk/linux-block (diff) | |
parent | block: make function 'kill_bdev' static (diff) | |
download | linux-d2b1c81f5f6c3427bd900be5fed306ca83d649d4.tar.xz linux-d2b1c81f5f6c3427bd900be5fed306ca83d649d4.zip |
Merge tag 'block-5.8-2020-06-19' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Use import_uuid() where appropriate (Andy)
- bcache fixes (Coly, Mauricio, Zhiqiang)
- blktrace sparse warnings fix (Jan)
- blktrace concurrent setup fix (Luis)
- blkdev_get use-after-free fix (Jason)
- Ensure all blk-mq maps are updated (Weiping)
- Loop invalidate bdev fix (Zheng)
* tag 'block-5.8-2020-06-19' of git://git.kernel.dk/linux-block:
block: make function 'kill_bdev' static
loop: replace kill_bdev with invalidate_bdev
partitions/ldm: Replace uuid_copy() with import_uuid() where it makes sense
block: update hctx map when use multiple maps
blktrace: Avoid sparse warnings when assigning q->blk_trace
blktrace: break out of blktrace setup on concurrent calls
block: Fix use-after-free in blkdev_get()
trace/events/block.h: drop kernel-doc for dropped function parameter
blk-mq: Remove redundant 'return' statement
bcache: pr_info() format clean up in bcache_device_init()
bcache: use delayed kworker fo asynchronous devices registration
bcache: check and adjust logical block size for backing devices
bcache: fix potential deadlock problem in btree_gc_coalesce
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/block/loop.c | 8 | ||||
-rw-r--r-- | drivers/md/bcache/btree.c | 8 | ||||
-rw-r--r-- | drivers/md/bcache/super.c | 35 |
3 files changed, 36 insertions, 15 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index c33bbbfd1bd9..475e1a738560 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1368,14 +1368,14 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info) lo->lo_sizelimit != info->lo_sizelimit) { size_changed = true; sync_blockdev(lo->lo_device); - kill_bdev(lo->lo_device); + invalidate_bdev(lo->lo_device); } /* I/O need to be drained during transfer transition */ blk_mq_freeze_queue(lo->lo_queue); if (size_changed && lo->lo_device->bd_inode->i_mapping->nrpages) { - /* If any pages were dirtied after kill_bdev(), try again */ + /* If any pages were dirtied after invalidate_bdev(), try again */ err = -EAGAIN; pr_warn("%s: loop%d (%s) has still dirty pages (nrpages=%lu)\n", __func__, lo->lo_number, lo->lo_file_name, @@ -1615,11 +1615,11 @@ static int loop_set_block_size(struct loop_device *lo, unsigned long arg) return 0; sync_blockdev(lo->lo_device); - kill_bdev(lo->lo_device); + invalidate_bdev(lo->lo_device); blk_mq_freeze_queue(lo->lo_queue); - /* kill_bdev should have truncated all the pages */ + /* invalidate_bdev should have truncated all the pages */ if (lo->lo_device->bd_inode->i_mapping->nrpages) { err = -EAGAIN; pr_warn("%s: loop%d (%s) has still dirty pages (nrpages=%lu)\n", diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index 39de94edd73a..6548a601edf0 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -1389,7 +1389,7 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op, if (__set_blocks(n1, n1->keys + n2->keys, block_bytes(b->c)) > btree_blocks(new_nodes[i])) - goto out_nocoalesce; + goto out_unlock_nocoalesce; keys = n2->keys; /* Take the key of the node we're getting rid of */ @@ -1418,7 +1418,7 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op, if (__bch_keylist_realloc(&keylist, bkey_u64s(&new_nodes[i]->key))) - goto out_nocoalesce; + goto out_unlock_nocoalesce; bch_btree_node_write(new_nodes[i], &cl); bch_keylist_add(&keylist, &new_nodes[i]->key); @@ -1464,6 +1464,10 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op, /* Invalidated our iterator */ return -EINTR; +out_unlock_nocoalesce: + for (i = 0; i < nodes; i++) + mutex_unlock(&new_nodes[i]->write_lock); + out_nocoalesce: closure_sync(&cl); diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index f9975c22bf7e..2014016f9a60 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -19,6 +19,7 @@ #include <linux/genhd.h> #include <linux/idr.h> #include <linux/kthread.h> +#include <linux/workqueue.h> #include <linux/module.h> #include <linux/random.h> #include <linux/reboot.h> @@ -819,7 +820,8 @@ static void bcache_device_free(struct bcache_device *d) } static int bcache_device_init(struct bcache_device *d, unsigned int block_size, - sector_t sectors, make_request_fn make_request_fn) + sector_t sectors, make_request_fn make_request_fn, + struct block_device *cached_bdev) { struct request_queue *q; const size_t max_stripes = min_t(size_t, INT_MAX, @@ -885,6 +887,20 @@ static int bcache_device_init(struct bcache_device *d, unsigned int block_size, q->limits.io_min = block_size; q->limits.logical_block_size = block_size; q->limits.physical_block_size = block_size; + + if (q->limits.logical_block_size > PAGE_SIZE && cached_bdev) { + /* + * This should only happen with BCACHE_SB_VERSION_BDEV. + * Block/page size is checked for BCACHE_SB_VERSION_CDEV. + */ + pr_info("%s: sb/logical block size (%u) greater than page size (%lu) falling back to device logical block size (%u)\n", + d->disk->disk_name, q->limits.logical_block_size, + PAGE_SIZE, bdev_logical_block_size(cached_bdev)); + + /* This also adjusts physical block size/min io size if needed */ + blk_queue_logical_block_size(q, bdev_logical_block_size(cached_bdev)); + } + blk_queue_flag_set(QUEUE_FLAG_NONROT, d->disk->queue); blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, d->disk->queue); blk_queue_flag_set(QUEUE_FLAG_DISCARD, d->disk->queue); @@ -1340,7 +1356,7 @@ static int cached_dev_init(struct cached_dev *dc, unsigned int block_size) ret = bcache_device_init(&dc->disk, block_size, dc->bdev->bd_part->nr_sects - dc->sb.data_offset, - cached_dev_make_request); + cached_dev_make_request, dc->bdev); if (ret) return ret; @@ -1453,7 +1469,7 @@ static int flash_dev_run(struct cache_set *c, struct uuid_entry *u) kobject_init(&d->kobj, &bch_flash_dev_ktype); if (bcache_device_init(d, block_bytes(c), u->sectors, - flash_dev_make_request)) + flash_dev_make_request, NULL)) goto err; bcache_device_attach(d, c, u - c->uuids); @@ -2364,7 +2380,7 @@ static bool bch_is_open(struct block_device *bdev) } struct async_reg_args { - struct work_struct reg_work; + struct delayed_work reg_work; char *path; struct cache_sb *sb; struct cache_sb_disk *sb_disk; @@ -2375,7 +2391,7 @@ static void register_bdev_worker(struct work_struct *work) { int fail = false; struct async_reg_args *args = - container_of(work, struct async_reg_args, reg_work); + container_of(work, struct async_reg_args, reg_work.work); struct cached_dev *dc; dc = kzalloc(sizeof(*dc), GFP_KERNEL); @@ -2405,7 +2421,7 @@ static void register_cache_worker(struct work_struct *work) { int fail = false; struct async_reg_args *args = - container_of(work, struct async_reg_args, reg_work); + container_of(work, struct async_reg_args, reg_work.work); struct cache *ca; ca = kzalloc(sizeof(*ca), GFP_KERNEL); @@ -2433,11 +2449,12 @@ out: static void register_device_aync(struct async_reg_args *args) { if (SB_IS_BDEV(args->sb)) - INIT_WORK(&args->reg_work, register_bdev_worker); + INIT_DELAYED_WORK(&args->reg_work, register_bdev_worker); else - INIT_WORK(&args->reg_work, register_cache_worker); + INIT_DELAYED_WORK(&args->reg_work, register_cache_worker); - queue_work(system_wq, &args->reg_work); + /* 10 jiffies is enough for a delay */ + queue_delayed_work(system_wq, &args->reg_work, 10); } static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr, |