- Misc VDO fixes

- Remove unused declarations dm_get_rq_mapinfo() and dm_zone_map_bio()
 
 - Dm-delay: Improve kernel documentation
 
 - Dm-crypt: Allow to specify the integrity key size as an option
 
 - Dm-bufio: Remove pointless NULL check
 
 - Small code cleanups: Use ERR_CAST; remove unlikely() around IS_ERR; use
   __assign_bit
 
 - Dm-integrity: Fix gcc 5 warning; convert comma to semicolon; fix smatch
   warning
 
 - Dm-integrity: Support recalculation in the 'I' mode
 
 - Revert "dm: requeue IO if mapping table not yet available"
 
 - Dm-crypt: Small refactoring to make the code more readable
 
 - Dm-cache: Remove pointless error check
 
 - Dm: Fix spelling errors
 
 - Dm-verity: Restart or panic on an I/O error if restart or panic was
   requested
 
 - Dm-verity: Fallback to platform keyring also if key in trusted keyring
   is rejected
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Merge tag 'for-6.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mikulas Patocka:

 - Misc VDO fixes

 - Remove unused declarations dm_get_rq_mapinfo() and dm_zone_map_bio()

 - Dm-delay: Improve kernel documentation

 - Dm-crypt: Allow to specify the integrity key size as an option

 - Dm-bufio: Remove pointless NULL check

 - Small code cleanups: Use ERR_CAST; remove unlikely() around IS_ERR;
   use __assign_bit

 - Dm-integrity: Fix gcc 5 warning; convert comma to semicolon; fix
   smatch warning

 - Dm-integrity: Support recalculation in the 'I' mode

 - Revert "dm: requeue IO if mapping table not yet available"

 - Dm-crypt: Small refactoring to make the code more readable

 - Dm-cache: Remove pointless error check

 - Dm: Fix spelling errors

 - Dm-verity: Restart or panic on an I/O error if restart or panic was
   requested

 - Dm-verity: Fallback to platform keyring also if key in trusted
   keyring is rejected

* tag 'for-6.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (26 commits)
  dm verity: fallback to platform keyring also if key in trusted keyring is rejected
  dm-verity: restart or panic on an I/O error
  dm: fix spelling errors
  dm-cache: remove pointless error check
  dm vdo: handle unaligned discards correctly
  dm vdo indexer: Convert comma to semicolon
  dm-crypt: Use common error handling code in crypt_set_keyring_key()
  dm-crypt: Use up_read() together with key_put() only once in crypt_set_keyring_key()
  Revert "dm: requeue IO if mapping table not yet available"
  dm-integrity: check mac_size against HASH_MAX_DIGESTSIZE in sb_mac()
  dm-integrity: support recalculation in the 'I' mode
  dm integrity: Convert comma to semicolon
  dm integrity: fix gcc 5 warning
  dm: Make use of __assign_bit() API
  dm integrity: Remove extra unlikely helper
  dm: Convert to use ERR_CAST()
  dm bufio: Remove NULL check of list_entry()
  dm-crypt: Allow to specify the integrity key size as option
  dm: Remove unused declaration and empty definition "dm_zone_map_bio"
  dm delay: enhance kernel documentation
  ...

Documentation/admin-guide/device-mapper/delay.rst

@@ -3,29 +3,52 @@ dm-delay
 ========
 
 Device-Mapper's "delay" target delays reads and/or writes
-and maps them to different devices.
+and/or flushs and optionally maps them to different devices.
 
-Parameters::
+Arguments::
 
     <device> <offset> <delay> [<write_device> <write_offset> <write_delay>
 			       [<flush_device> <flush_offset> <flush_delay>]]
 
-With separate write parameters, the first set is only used for reads.
+Table line has to either have 3, 6 or 9 arguments:
+
+3: apply offset and delay to read, write and flush operations on device
+
+6: apply offset and delay to device, also apply write_offset and write_delay
+   to write and flush operations on optionally different write_device with
+   optionally different sector offset
+
+9: same as 6 arguments plus define flush_offset and flush_delay explicitely
+   on/with optionally different flush_device/flush_offset.
+
 Offsets are specified in sectors.
+
 Delays are specified in milliseconds.
 
+
 Example scripts
 ===============
 
 ::
-
 	#!/bin/sh
-	# Create device delaying rw operation for 500ms
+	#
-	echo "0 `blockdev --getsz $1` delay $1 0 500" | dmsetup create delayed
+	# Create mapped device named "delayed" delaying read, write and flush operations for 500ms.
+	#
+	dmsetup create delayed --table  "0 `blockdev --getsz $1` delay $1 0 500"
 
 ::
-
 	#!/bin/sh
-	# Create device delaying only write operation for 500ms and
+	#
-	# splitting reads and writes to different devices $1 $2
+	# Create mapped device delaying write and flush operations for 400ms and
-	echo "0 `blockdev --getsz $1` delay $1 0 0 $2 0 500" | dmsetup create delayed
+	# splitting reads to device $1 but writes and flushs to different device $2
+	# to different offsets of 2048 and 4096 sectors respectively.
+	#
+	dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 2048 0 $2 4096 400"
+
+::
+	#!/bin/sh
+	#
+	# Create mapped device delaying reads for 50ms, writes for 100ms and flushs for 333ms
+	# onto the same backing device at offset 0 sectors.
+	#
+	dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 0 50 $2 0 100 $1 0 333"

Documentation/admin-guide/device-mapper/dm-crypt.rst

@@ -160,6 +160,10 @@ iv_large_sectors
    The <iv_offset> must be multiple of <sector_size> (in 512 bytes units)
    if this flag is specified.
 
+integrity_key_size:<bytes>
+   Use an integrity key of <bytes> size instead of using an integrity key size
+   of the digest size of the used HMAC algorithm.
+
 
 Module parameters::
    max_read_size

Documentation/admin-guide/device-mapper/vdo.rst

@@ -251,7 +251,12 @@ The messages are:
 		by the vdostats userspace program to interpret the output
 		buffer.
 
-        dump:
+	config:
+		Outputs useful vdo configuration information. Mostly used
+		by users who want to recreate a similar VDO volume and
+		want to know the creation configuration used.
+
+	dump:
 		Dumps many internal structures to the system log. This is
 		not always safe to run, so it should only be used to debug
 		a hung vdo. Optional parameters to specify structures to

drivers/md/dm-bufio.c

@@ -529,9 +529,6 @@ static struct dm_buffer *list_to_buffer(struct list_head *l)
 {
 	struct lru_entry *le = list_entry(l, struct lru_entry, list);
 
-	if (!le)
-		return NULL;
-
 	return le_to_buffer(le);
 }
 

drivers/md/dm-cache-target.c

@@ -1368,7 +1368,7 @@ static void mg_copy(struct work_struct *ws)
 			 */
 			bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio);
 
-			BUG_ON(rb); /* An exclussive lock must _not_ be held for this block */
+			BUG_ON(rb); /* An exclusive lock must _not_ be held for this block */
 			mg->overwrite_bio = NULL;
 			inc_io_migrations(mg->cache);
 			mg_full_copy(ws);
@@ -3200,8 +3200,6 @@ static int parse_cblock_range(struct cache *cache, const char *str,
 	 * Try and parse form (ii) first.
 	 */
 	r = sscanf(str, "%llu-%llu%c", &b, &e, &dummy);
-	if (r < 0)
-		return r;
 
 	if (r == 2) {
 		result->begin = to_cblock(b);
@@ -3213,8 +3211,6 @@ static int parse_cblock_range(struct cache *cache, const char *str,
 	 * That didn't work, try form (i).
 	 */
 	r = sscanf(str, "%llu%c", &b, &dummy);
-	if (r < 0)
-		return r;
 
 	if (r == 1) {
 		result->begin = to_cblock(b);

drivers/md/dm-clone-metadata.c

@@ -530,10 +530,7 @@ static int __load_bitset_in_core(struct dm_clone_metadata *cmd)
 		return r;
 
 	for (i = 0; ; i++) {
-		if (dm_bitset_cursor_get_value(&c))
+		__assign_bit(i, cmd->region_map, dm_bitset_cursor_get_value(&c));
-			__set_bit(i, cmd->region_map);
-		else
-			__clear_bit(i, cmd->region_map);
 
 		if (i >= (cmd->nr_regions - 1))
 			break;

drivers/md/dm-crypt.c

@@ -147,6 +147,7 @@ enum cipher_flags {
 	CRYPT_MODE_INTEGRITY_AEAD,	/* Use authenticated mode for cipher */
 	CRYPT_IV_LARGE_SECTORS,		/* Calculate IV from sector_size, not 512B sectors */
 	CRYPT_ENCRYPT_PREPROCESS,	/* Must preprocess data for encryption (elephant) */
+	CRYPT_KEY_MAC_SIZE_SET,		/* The integrity_key_size option was used */
 };
 
 /*
@@ -2613,35 +2614,31 @@ static int crypt_set_keyring_key(struct crypt_config *cc, const char *key_string
 
 	key = request_key(type, key_desc + 1, NULL);
 	if (IS_ERR(key)) {
-		kfree_sensitive(new_key_string);
+		ret = PTR_ERR(key);
-		return PTR_ERR(key);
+		goto free_new_key_string;
 	}
 
 	down_read(&key->sem);
-
 	ret = set_key(cc, key);
-	if (ret < 0) {
-		up_read(&key->sem);
-		key_put(key);
-		kfree_sensitive(new_key_string);
-		return ret;
-	}
-
 	up_read(&key->sem);
 	key_put(key);
+	if (ret < 0)
+		goto free_new_key_string;
 
 	/* clear the flag since following operations may invalidate previously valid key */
 	clear_bit(DM_CRYPT_KEY_VALID, &cc->flags);
 
 	ret = crypt_setkey(cc);
+	if (ret)
+		goto free_new_key_string;
 
-	if (!ret) {
+	set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
-		set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
+	kfree_sensitive(cc->key_string);
-		kfree_sensitive(cc->key_string);
+	cc->key_string = new_key_string;
-		cc->key_string = new_key_string;
+	return 0;
-	} else
-		kfree_sensitive(new_key_string);
 
+free_new_key_string:
+	kfree_sensitive(new_key_string);
 	return ret;
 }
 
@@ -2937,7 +2934,8 @@ static int crypt_ctr_auth_cipher(struct crypt_config *cc, char *cipher_api)
 	if (IS_ERR(mac))
 		return PTR_ERR(mac);
 
-	cc->key_mac_size = crypto_ahash_digestsize(mac);
+	if (!test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags))
+		cc->key_mac_size = crypto_ahash_digestsize(mac);
 	crypto_free_ahash(mac);
 
 	cc->authenc_key = kmalloc(crypt_authenckey_size(cc), GFP_KERNEL);
@@ -3219,6 +3217,13 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar
 			cc->cipher_auth = kstrdup(sval, GFP_KERNEL);
 			if (!cc->cipher_auth)
 				return -ENOMEM;
+		} else if (sscanf(opt_string, "integrity_key_size:%u%c", &val, &dummy) == 1) {
+			if (!val) {
+				ti->error = "Invalid integrity_key_size argument";
+				return -EINVAL;
+			}
+			cc->key_mac_size = val;
+			set_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags);
 		} else if (sscanf(opt_string, "sector_size:%hu%c", &cc->sector_size, &dummy) == 1) {
 			if (cc->sector_size < (1 << SECTOR_SHIFT) ||
 			    cc->sector_size > 4096 ||
@@ -3607,10 +3612,10 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
 		num_feature_args += test_bit(DM_CRYPT_NO_OFFLOAD, &cc->flags);
 		num_feature_args += test_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags);
 		num_feature_args += test_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags);
+		num_feature_args += !!cc->used_tag_size;
 		num_feature_args += cc->sector_size != (1 << SECTOR_SHIFT);
 		num_feature_args += test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags);
-		if (cc->used_tag_size)
+		num_feature_args += test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags);
-			num_feature_args++;
 		if (num_feature_args) {
 			DMEMIT(" %d", num_feature_args);
 			if (ti->num_discard_bios)
@@ -3631,6 +3636,8 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
 				DMEMIT(" sector_size:%d", cc->sector_size);
 			if (test_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags))
 				DMEMIT(" iv_large_sectors");
+			if (test_bit(CRYPT_KEY_MAC_SIZE_SET, &cc->cipher_flags))
+				DMEMIT(" integrity_key_size:%u", cc->key_mac_size);
 		}
 		break;
 
@@ -3758,7 +3765,7 @@ static void crypt_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 static struct target_type crypt_target = {
 	.name   = "crypt",
-	.version = {1, 27, 0},
+	.version = {1, 28, 0},
 	.module = THIS_MODULE,
 	.ctr    = crypt_ctr,
 	.dtr    = crypt_dtr,

drivers/md/dm-integrity.c

@@ -284,6 +284,7 @@ struct dm_integrity_c {
 
 	mempool_t recheck_pool;
 	struct bio_set recheck_bios;
+	struct bio_set recalc_bios;
 
 	struct notifier_block reboot_notifier;
 };
@@ -321,7 +322,9 @@ struct dm_integrity_io {
 	struct dm_bio_details bio_details;
 
 	char *integrity_payload;
+	unsigned payload_len;
 	bool integrity_payload_from_mempool;
+	bool integrity_range_locked;
 };
 
 struct journal_completion {
@@ -359,7 +362,7 @@ static struct kmem_cache *journal_io_cache;
 #endif
 
 static void dm_integrity_map_continue(struct dm_integrity_io *dio, bool from_map);
-static int dm_integrity_map_inline(struct dm_integrity_io *dio);
+static int dm_integrity_map_inline(struct dm_integrity_io *dio, bool from_map);
 static void integrity_bio_wait(struct work_struct *w);
 static void dm_integrity_dtr(struct dm_target *ti);
 
@@ -491,7 +494,8 @@ static int sb_mac(struct dm_integrity_c *ic, bool wr)
 	__u8 *sb = (__u8 *)ic->sb;
 	__u8 *mac = sb + (1 << SECTOR_SHIFT) - mac_size;
 
-	if (sizeof(struct superblock) + mac_size > 1 << SECTOR_SHIFT) {
+	if (sizeof(struct superblock) + mac_size > 1 << SECTOR_SHIFT ||
+	    mac_size > HASH_MAX_DIGESTSIZE) {
 		dm_integrity_io_error(ic, "digest is too long", -EINVAL);
 		return -EINVAL;
 	}
@@ -1500,15 +1504,15 @@ static void dm_integrity_flush_buffers(struct dm_integrity_c *ic, bool flush_dat
 	if (!ic->meta_dev)
 		flush_data = false;
 	if (flush_data) {
-		fr.io_req.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC,
+		fr.io_req.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC;
-		fr.io_req.mem.type = DM_IO_KMEM,
+		fr.io_req.mem.type = DM_IO_KMEM;
-		fr.io_req.mem.ptr.addr = NULL,
+		fr.io_req.mem.ptr.addr = NULL;
-		fr.io_req.notify.fn = flush_notify,
+		fr.io_req.notify.fn = flush_notify;
 		fr.io_req.notify.context = &fr;
-		fr.io_req.client = dm_bufio_get_dm_io_client(ic->bufio),
+		fr.io_req.client = dm_bufio_get_dm_io_client(ic->bufio);
-		fr.io_reg.bdev = ic->dev->bdev,
+		fr.io_reg.bdev = ic->dev->bdev;
-		fr.io_reg.sector = 0,
+		fr.io_reg.sector = 0;
-		fr.io_reg.count = 0,
+		fr.io_reg.count = 0;
 		fr.ic = ic;
 		init_completion(&fr.comp);
 		r = dm_io(&fr.io_req, 1, &fr.io_reg, NULL, IOPRIO_DEFAULT);
@@ -1946,8 +1950,13 @@ static int dm_integrity_map(struct dm_target *ti, struct bio *bio)
 	dio->bi_status = 0;
 	dio->op = bio_op(bio);
 
-	if (ic->mode == 'I')
+	if (ic->mode == 'I') {
-		return dm_integrity_map_inline(dio);
+		bio->bi_iter.bi_sector = dm_target_offset(ic->ti, bio->bi_iter.bi_sector);
+		dio->integrity_payload = NULL;
+		dio->integrity_payload_from_mempool = false;
+		dio->integrity_range_locked = false;
+		return dm_integrity_map_inline(dio, true);
+	}
 
 	if (unlikely(dio->op == REQ_OP_DISCARD)) {
 		if (ti->max_io_len) {
@@ -2397,15 +2406,13 @@ static void dm_integrity_map_continue(struct dm_integrity_io *dio, bool from_map
 	do_endio_flush(ic, dio);
 }
 
-static int dm_integrity_map_inline(struct dm_integrity_io *dio)
+static int dm_integrity_map_inline(struct dm_integrity_io *dio, bool from_map)
 {
 	struct dm_integrity_c *ic = dio->ic;
 	struct bio *bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io));
 	struct bio_integrity_payload *bip;
-	unsigned payload_len, digest_size, extra_size, ret;
+	unsigned ret;
-
+	sector_t recalc_sector;
-	dio->integrity_payload = NULL;
-	dio->integrity_payload_from_mempool = false;
 
 	if (unlikely(bio_integrity(bio))) {
 		bio->bi_status = BLK_STS_NOTSUPP;
@@ -2418,28 +2425,67 @@ static int dm_integrity_map_inline(struct dm_integrity_io *dio)
 		return DM_MAPIO_REMAPPED;
 
 retry:
-	payload_len = ic->tuple_size * (bio_sectors(bio) >> ic->sb->log2_sectors_per_block);
+	if (!dio->integrity_payload) {
-	digest_size = crypto_shash_digestsize(ic->internal_hash);
+		unsigned digest_size, extra_size;
-	extra_size = unlikely(digest_size > ic->tag_size) ? digest_size - ic->tag_size : 0;
+		dio->payload_len = ic->tuple_size * (bio_sectors(bio) >> ic->sb->log2_sectors_per_block);
-	payload_len += extra_size;
+		digest_size = crypto_shash_digestsize(ic->internal_hash);
-	dio->integrity_payload = kmalloc(payload_len, GFP_NOIO | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN);
+		extra_size = unlikely(digest_size > ic->tag_size) ? digest_size - ic->tag_size : 0;
-	if (unlikely(!dio->integrity_payload)) {
+		dio->payload_len += extra_size;
-		const unsigned x_size = PAGE_SIZE << 1;
+		dio->integrity_payload = kmalloc(dio->payload_len, GFP_NOIO | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN);
-		if (payload_len > x_size) {
+		if (unlikely(!dio->integrity_payload)) {
-			unsigned sectors = ((x_size - extra_size) / ic->tuple_size) << ic->sb->log2_sectors_per_block;
+			const unsigned x_size = PAGE_SIZE << 1;
-			if (WARN_ON(!sectors || sectors >= bio_sectors(bio))) {
+			if (dio->payload_len > x_size) {
-				bio->bi_status = BLK_STS_NOTSUPP;
+				unsigned sectors = ((x_size - extra_size) / ic->tuple_size) << ic->sb->log2_sectors_per_block;
-				bio_endio(bio);
+				if (WARN_ON(!sectors || sectors >= bio_sectors(bio))) {
-				return DM_MAPIO_SUBMITTED;
+					bio->bi_status = BLK_STS_NOTSUPP;
+					bio_endio(bio);
+					return DM_MAPIO_SUBMITTED;
+				}
+				dm_accept_partial_bio(bio, sectors);
+				goto retry;
 			}
-			dm_accept_partial_bio(bio, sectors);
-			goto retry;
 		}
+	}
+
+	dio->range.logical_sector = bio->bi_iter.bi_sector;
+	dio->range.n_sectors = bio_sectors(bio);
+
+	if (!(ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)))
+		goto skip_spinlock;
+#ifdef CONFIG_64BIT
+	/*
+	 * On 64-bit CPUs we can optimize the lock away (so that it won't cause
+	 * cache line bouncing) and use acquire/release barriers instead.
+	 *
+	 * Paired with smp_store_release in integrity_recalc_inline.
+	 */
+	recalc_sector = le64_to_cpu(smp_load_acquire(&ic->sb->recalc_sector));
+	if (likely(dio->range.logical_sector + dio->range.n_sectors <= recalc_sector))
+		goto skip_spinlock;
+#endif
+	spin_lock_irq(&ic->endio_wait.lock);
+	recalc_sector = le64_to_cpu(ic->sb->recalc_sector);
+	if (dio->range.logical_sector + dio->range.n_sectors <= recalc_sector)
+		goto skip_unlock;
+	if (unlikely(!add_new_range(ic, &dio->range, true))) {
+		if (from_map) {
+			spin_unlock_irq(&ic->endio_wait.lock);
+			INIT_WORK(&dio->work, integrity_bio_wait);
+			queue_work(ic->wait_wq, &dio->work);
+			return DM_MAPIO_SUBMITTED;
+		}
+		wait_and_add_new_range(ic, &dio->range);
+	}
+	dio->integrity_range_locked = true;
+skip_unlock:
+	spin_unlock_irq(&ic->endio_wait.lock);
+skip_spinlock:
+
+	if (unlikely(!dio->integrity_payload)) {
 		dio->integrity_payload = page_to_virt((struct page *)mempool_alloc(&ic->recheck_pool, GFP_NOIO));
 		dio->integrity_payload_from_mempool = true;
 	}
 
-	bio->bi_iter.bi_sector = dm_target_offset(ic->ti, bio->bi_iter.bi_sector);
 	dio->bio_details.bi_iter = bio->bi_iter;
 
 	if (unlikely(!dm_integrity_check_limits(ic, bio->bi_iter.bi_sector, bio))) {
@@ -2449,7 +2495,7 @@ static int dm_integrity_map_inline(struct dm_integrity_io *dio)
 	bio->bi_iter.bi_sector += ic->start + SB_SECTORS;
 
 	bip = bio_integrity_alloc(bio, GFP_NOIO, 1);
-	if (unlikely(IS_ERR(bip))) {
+	if (IS_ERR(bip)) {
 		bio->bi_status = errno_to_blk_status(PTR_ERR(bip));
 		bio_endio(bio);
 		return DM_MAPIO_SUBMITTED;
@@ -2470,8 +2516,8 @@ static int dm_integrity_map_inline(struct dm_integrity_io *dio)
 	}
 
 	ret = bio_integrity_add_page(bio, virt_to_page(dio->integrity_payload),
-					payload_len, offset_in_page(dio->integrity_payload));
+					dio->payload_len, offset_in_page(dio->integrity_payload));
-	if (unlikely(ret != payload_len)) {
+	if (unlikely(ret != dio->payload_len)) {
 		bio->bi_status = BLK_STS_RESOURCE;
 		bio_endio(bio);
 		return DM_MAPIO_SUBMITTED;
@@ -2522,7 +2568,7 @@ static void dm_integrity_inline_recheck(struct work_struct *w)
 		}
 
 		bip = bio_integrity_alloc(outgoing_bio, GFP_NOIO, 1);
-		if (unlikely(IS_ERR(bip))) {
+		if (IS_ERR(bip)) {
 			bio_put(outgoing_bio);
 			bio->bi_status = errno_to_blk_status(PTR_ERR(bip));
 			bio_endio(bio);
@@ -2579,6 +2625,9 @@ static int dm_integrity_end_io(struct dm_target *ti, struct bio *bio, blk_status
 		struct dm_integrity_io *dio = dm_per_bio_data(bio, sizeof(struct dm_integrity_io));
 		if (dio->op == REQ_OP_READ && likely(*status == BLK_STS_OK)) {
 			unsigned pos = 0;
+			if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING) &&
+			    unlikely(dio->integrity_range_locked))
+				goto skip_check;
 			while (dio->bio_details.bi_iter.bi_size) {
 				char digest[HASH_MAX_DIGESTSIZE];
 				struct bio_vec bv = bio_iter_iovec(bio, dio->bio_details.bi_iter);
@@ -2598,9 +2647,10 @@ static int dm_integrity_end_io(struct dm_target *ti, struct bio *bio, blk_status
 				bio_advance_iter_single(bio, &dio->bio_details.bi_iter, ic->sectors_per_block << SECTOR_SHIFT);
 			}
 		}
-		if (likely(dio->op == REQ_OP_READ) || likely(dio->op == REQ_OP_WRITE)) {
+skip_check:
-			dm_integrity_free_payload(dio);
+		dm_integrity_free_payload(dio);
-		}
+		if (unlikely(dio->integrity_range_locked))
+			remove_range(ic, &dio->range);
 	}
 	return DM_ENDIO_DONE;
 }
@@ -2608,8 +2658,26 @@ static int dm_integrity_end_io(struct dm_target *ti, struct bio *bio, blk_status
 static void integrity_bio_wait(struct work_struct *w)
 {
 	struct dm_integrity_io *dio = container_of(w, struct dm_integrity_io, work);
+	struct dm_integrity_c *ic = dio->ic;
 
-	dm_integrity_map_continue(dio, false);
+	if (ic->mode == 'I') {
+		struct bio *bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io));
+		int r = dm_integrity_map_inline(dio, false);
+		switch (r) {
+			case DM_MAPIO_KILL:
+				bio->bi_status = BLK_STS_IOERR;
+				fallthrough;
+			case DM_MAPIO_REMAPPED:
+				submit_bio_noacct(bio);
+				fallthrough;
+			case DM_MAPIO_SUBMITTED:
+				return;
+			default:
+				BUG();
+		}
+	} else {
+		dm_integrity_map_continue(dio, false);
+	}
 }
 
 static void pad_uncommitted(struct dm_integrity_c *ic)
@@ -3081,6 +3149,133 @@ static void integrity_recalc(struct work_struct *w)
 	kvfree(recalc_tags);
 }
 
+static void integrity_recalc_inline(struct work_struct *w)
+{
+	struct dm_integrity_c *ic = container_of(w, struct dm_integrity_c, recalc_work);
+	size_t recalc_tags_size;
+	u8 *recalc_buffer = NULL;
+	u8 *recalc_tags = NULL;
+	struct dm_integrity_range range;
+	struct bio *bio;
+	struct bio_integrity_payload *bip;
+	__u8 *t;
+	unsigned int i;
+	int r;
+	unsigned ret;
+	unsigned int super_counter = 0;
+	unsigned recalc_sectors = RECALC_SECTORS;
+
+retry:
+	recalc_buffer = kmalloc(recalc_sectors << SECTOR_SHIFT, GFP_NOIO | __GFP_NOWARN);
+	if (!recalc_buffer) {
+oom:
+		recalc_sectors >>= 1;
+		if (recalc_sectors >= 1U << ic->sb->log2_sectors_per_block)
+			goto retry;
+		DMCRIT("out of memory for recalculate buffer - recalculation disabled");
+		goto free_ret;
+	}
+
+	recalc_tags_size = (recalc_sectors >> ic->sb->log2_sectors_per_block) * ic->tuple_size;
+	if (crypto_shash_digestsize(ic->internal_hash) > ic->tuple_size)
+		recalc_tags_size += crypto_shash_digestsize(ic->internal_hash) - ic->tuple_size;
+	recalc_tags = kmalloc(recalc_tags_size, GFP_NOIO | __GFP_NOWARN);
+	if (!recalc_tags) {
+		kfree(recalc_buffer);
+		recalc_buffer = NULL;
+		goto oom;
+	}
+
+	spin_lock_irq(&ic->endio_wait.lock);
+
+next_chunk:
+	if (unlikely(dm_post_suspending(ic->ti)))
+		goto unlock_ret;
+
+	range.logical_sector = le64_to_cpu(ic->sb->recalc_sector);
+	if (unlikely(range.logical_sector >= ic->provided_data_sectors))
+		goto unlock_ret;
+	range.n_sectors = min((sector_t)recalc_sectors, ic->provided_data_sectors - range.logical_sector);
+
+	add_new_range_and_wait(ic, &range);
+	spin_unlock_irq(&ic->endio_wait.lock);
+
+	if (unlikely(++super_counter == RECALC_WRITE_SUPER)) {
+		recalc_write_super(ic);
+		super_counter = 0;
+	}
+
+	if (unlikely(dm_integrity_failed(ic)))
+		goto err;
+
+	DEBUG_print("recalculating: %llx - %llx\n", range.logical_sector, range.n_sectors);
+
+	bio = bio_alloc_bioset(ic->dev->bdev, 1, REQ_OP_READ, GFP_NOIO, &ic->recalc_bios);
+	bio->bi_iter.bi_sector = ic->start + SB_SECTORS + range.logical_sector;
+	__bio_add_page(bio, virt_to_page(recalc_buffer), range.n_sectors << SECTOR_SHIFT, offset_in_page(recalc_buffer));
+	r = submit_bio_wait(bio);
+	bio_put(bio);
+	if (unlikely(r)) {
+		dm_integrity_io_error(ic, "reading data", r);
+		goto err;
+	}
+
+	t = recalc_tags;
+	for (i = 0; i < range.n_sectors; i += ic->sectors_per_block) {
+		memset(t, 0, ic->tuple_size);
+		integrity_sector_checksum(ic, range.logical_sector + i, recalc_buffer + (i << SECTOR_SHIFT), t);
+		t += ic->tuple_size;
+	}
+
+	bio = bio_alloc_bioset(ic->dev->bdev, 1, REQ_OP_WRITE, GFP_NOIO, &ic->recalc_bios);
+	bio->bi_iter.bi_sector = ic->start + SB_SECTORS + range.logical_sector;
+	__bio_add_page(bio, virt_to_page(recalc_buffer), range.n_sectors << SECTOR_SHIFT, offset_in_page(recalc_buffer));
+
+	bip = bio_integrity_alloc(bio, GFP_NOIO, 1);
+	if (unlikely(IS_ERR(bip))) {
+		bio_put(bio);
+		DMCRIT("out of memory for bio integrity payload - recalculation disabled");
+		goto err;
+	}
+	ret = bio_integrity_add_page(bio, virt_to_page(recalc_tags), t - recalc_tags, offset_in_page(recalc_tags));
+	if (unlikely(ret != t - recalc_tags)) {
+		bio_put(bio);
+		dm_integrity_io_error(ic, "attaching integrity tags", -ENOMEM);
+		goto err;
+	}
+
+	r = submit_bio_wait(bio);
+	bio_put(bio);
+	if (unlikely(r)) {
+		dm_integrity_io_error(ic, "writing data", r);
+		goto err;
+	}
+
+	cond_resched();
+	spin_lock_irq(&ic->endio_wait.lock);
+	remove_range_unlocked(ic, &range);
+#ifdef CONFIG_64BIT
+	/* Paired with smp_load_acquire in dm_integrity_map_inline. */
+	smp_store_release(&ic->sb->recalc_sector, cpu_to_le64(range.logical_sector + range.n_sectors));
+#else
+	ic->sb->recalc_sector = cpu_to_le64(range.logical_sector + range.n_sectors);
+#endif
+	goto next_chunk;
+
+err:
+	remove_range(ic, &range);
+	goto free_ret;
+
+unlock_ret:
+	spin_unlock_irq(&ic->endio_wait.lock);
+
+	recalc_write_super(ic);
+
+free_ret:
+	kfree(recalc_buffer);
+	kfree(recalc_tags);
+}
+
 static void bitmap_block_work(struct work_struct *w)
 {
 	struct bitmap_block_status *bbs = container_of(w, struct bitmap_block_status, work);
@@ -4619,6 +4814,17 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
 			r = -ENOMEM;
 			goto bad;
 		}
+		r = bioset_init(&ic->recalc_bios, 1, 0, BIOSET_NEED_BVECS);
+		if (r) {
+			ti->error = "Cannot allocate bio set";
+			goto bad;
+		}
+		r = bioset_integrity_create(&ic->recalc_bios, 1);
+		if (r) {
+			ti->error = "Cannot allocate bio integrity set";
+			r = -ENOMEM;
+			goto bad;
+		}
 	}
 
 	ic->metadata_wq = alloc_workqueue("dm-integrity-metadata",
@@ -4717,13 +4923,18 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
 		ti->error = "Block size doesn't match the information in superblock";
 		goto bad;
 	}
-	if (!le32_to_cpu(ic->sb->journal_sections) != (ic->mode == 'I')) {
+	if (ic->mode != 'I') {
-		r = -EINVAL;
+		if (!le32_to_cpu(ic->sb->journal_sections)) {
-		if (ic->mode != 'I')
+			r = -EINVAL;
 			ti->error = "Corrupted superblock, journal_sections is 0";
-		else
+			goto bad;
+		}
+	} else {
+		if (le32_to_cpu(ic->sb->journal_sections)) {
+			r = -EINVAL;
 			ti->error = "Corrupted superblock, journal_sections is not 0";
-		goto bad;
+			goto bad;
+		}
 	}
 	/* make sure that ti->max_io_len doesn't overflow */
 	if (!ic->meta_dev) {
@@ -4830,7 +5041,7 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
 			r = -ENOMEM;
 			goto bad;
 		}
-		INIT_WORK(&ic->recalc_work, integrity_recalc);
+		INIT_WORK(&ic->recalc_work, ic->mode == 'I' ? integrity_recalc_inline : integrity_recalc);
 	} else {
 		if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) {
 			ti->error = "Recalculate can only be specified with internal_hash";
@@ -4847,17 +5058,15 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
 		goto bad;
 	}
 
-	if (ic->mode != 'I') {
+	ic->bufio = dm_bufio_client_create(ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev,
-		ic->bufio = dm_bufio_client_create(ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev,
+			1U << (SECTOR_SHIFT + ic->log2_buffer_sectors), 1, 0, NULL, NULL, 0);
-				1U << (SECTOR_SHIFT + ic->log2_buffer_sectors), 1, 0, NULL, NULL, 0);
+	if (IS_ERR(ic->bufio)) {
-		if (IS_ERR(ic->bufio)) {
+		r = PTR_ERR(ic->bufio);
-			r = PTR_ERR(ic->bufio);
+		ti->error = "Cannot initialize dm-bufio";
-			ti->error = "Cannot initialize dm-bufio";
+		ic->bufio = NULL;
-			ic->bufio = NULL;
+		goto bad;
-			goto bad;
-		}
-		dm_bufio_set_sector_offset(ic->bufio, ic->start + ic->initial_sectors);
 	}
+	dm_bufio_set_sector_offset(ic->bufio, ic->start + ic->initial_sectors);
 
 	if (ic->mode != 'R' && ic->mode != 'I') {
 		r = create_journal(ic, &ti->error);
@@ -4979,6 +5188,7 @@ static void dm_integrity_dtr(struct dm_target *ti)
 	kvfree(ic->bbs);
 	if (ic->bufio)
 		dm_bufio_client_destroy(ic->bufio);
+	bioset_exit(&ic->recalc_bios);
 	bioset_exit(&ic->recheck_bios);
 	mempool_exit(&ic->recheck_pool);
 	mempool_exit(&ic->journal_io_mempool);
@@ -5033,7 +5243,7 @@ static void dm_integrity_dtr(struct dm_target *ti)
 
 static struct target_type integrity_target = {
 	.name			= "integrity",
-	.version		= {1, 12, 0},
+	.version		= {1, 13, 0},
 	.module			= THIS_MODULE,
 	.features		= DM_TARGET_SINGLETON | DM_TARGET_INTEGRITY,
 	.ctr			= dm_integrity_ctr,

drivers/md/dm-raid.c

@@ -2519,7 +2519,7 @@ static int super_validate(struct raid_set *rs, struct md_rdev *rdev)
 		rdev->saved_raid_disk = rdev->raid_disk;
 	}
 
-	/* Reshape support -> restore repective data offsets */
+	/* Reshape support -> restore respective data offsets */
 	rdev->data_offset = le64_to_cpu(sb->data_offset);
 	rdev->new_data_offset = le64_to_cpu(sb->new_data_offset);
 

drivers/md/dm-rq.c

@@ -496,8 +496,10 @@ static blk_status_t dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
 
 		map = dm_get_live_table(md, &srcu_idx);
 		if (unlikely(!map)) {
+			DMERR_LIMIT("%s: mapping table unavailable, erroring io",
+				    dm_device_name(md));
 			dm_put_live_table(md, srcu_idx);
-			return BLK_STS_RESOURCE;
+			return BLK_STS_IOERR;
 		}
 		ti = dm_table_find_target(map, 0);
 		dm_put_live_table(md, srcu_idx);

drivers/md/dm-thin.c

@@ -2948,7 +2948,7 @@ static struct pool *pool_create(struct mapped_device *pool_md,
 	pmd = dm_pool_metadata_open(metadata_dev, block_size, format_device);
 	if (IS_ERR(pmd)) {
 		*error = "Error creating metadata object";
-		return (struct pool *)pmd;
+		return ERR_CAST(pmd);
 	}
 
 	pool = kzalloc(sizeof(*pool), GFP_KERNEL);

drivers/md/dm-vdo/data-vio.c

@@ -501,6 +501,7 @@ static void launch_data_vio(struct data_vio *data_vio, logical_block_number_t lb
 
 	memset(&data_vio->record_name, 0, sizeof(data_vio->record_name));
 	memset(&data_vio->duplicate, 0, sizeof(data_vio->duplicate));
+	vdo_reset_completion(&data_vio->decrement_completion);
 	vdo_reset_completion(completion);
 	completion->error_handler = handle_data_vio_error;
 	set_data_vio_logical_callback(data_vio, attempt_logical_block_lock);
@@ -1273,12 +1274,14 @@ static void clean_hash_lock(struct vdo_completion *completion)
 static void finish_cleanup(struct data_vio *data_vio)
 {
 	struct vdo_completion *completion = &data_vio->vio.completion;
+	u32 discard_size = min_t(u32, data_vio->remaining_discard,
+				 VDO_BLOCK_SIZE - data_vio->offset);
 
 	VDO_ASSERT_LOG_ONLY(data_vio->allocation.lock == NULL,
 			    "complete data_vio has no allocation lock");
 	VDO_ASSERT_LOG_ONLY(data_vio->hash_lock == NULL,
 			    "complete data_vio has no hash lock");
-	if ((data_vio->remaining_discard <= VDO_BLOCK_SIZE) ||
+	if ((data_vio->remaining_discard <= discard_size) ||
 	    (completion->result != VDO_SUCCESS)) {
 		struct data_vio_pool *pool = completion->vdo->data_vio_pool;
 
@@ -1287,12 +1290,12 @@ static void finish_cleanup(struct data_vio *data_vio)
 		return;
 	}
 
-	data_vio->remaining_discard -= min_t(u32, data_vio->remaining_discard,
+	data_vio->remaining_discard -= discard_size;
-					     VDO_BLOCK_SIZE - data_vio->offset);
 	data_vio->is_partial = (data_vio->remaining_discard < VDO_BLOCK_SIZE);
 	data_vio->read = data_vio->is_partial;
 	data_vio->offset = 0;
 	completion->requeue = true;
+	data_vio->first_reference_operation_complete = false;
 	launch_data_vio(data_vio, data_vio->logical.lbn + 1);
 }
 
@@ -1965,7 +1968,8 @@ static void allocate_block(struct vdo_completion *completion)
 		.state = VDO_MAPPING_STATE_UNCOMPRESSED,
 	};
 
-	if (data_vio->fua) {
+	if (data_vio->fua ||
+	    data_vio->remaining_discard > (u32) (VDO_BLOCK_SIZE - data_vio->offset)) {
 		prepare_for_dedupe(data_vio);
 		return;
 	}
@@ -2042,7 +2046,6 @@ void continue_data_vio_with_block_map_slot(struct vdo_completion *completion)
 		return;
 	}
 
-
 	/*
 	 * We don't need to write any data, so skip allocation and just update the block map and
 	 * reference counts (via the journal).
@@ -2051,7 +2054,7 @@ void continue_data_vio_with_block_map_slot(struct vdo_completion *completion)
 	if (data_vio->is_zero)
 		data_vio->new_mapped.state = VDO_MAPPING_STATE_UNCOMPRESSED;
 
-	if (data_vio->remaining_discard > VDO_BLOCK_SIZE) {
+	if (data_vio->remaining_discard > (u32) (VDO_BLOCK_SIZE - data_vio->offset)) {
 		/* This is not the final block of a discard so we can't acknowledge it yet. */
 		update_metadata_for_data_vio_write(data_vio, NULL);
 		return;

drivers/md/dm-vdo/dedupe.c

@@ -729,6 +729,7 @@ static void process_update_result(struct data_vio *agent)
 	    !change_context_state(context, DEDUPE_CONTEXT_COMPLETE, DEDUPE_CONTEXT_IDLE))
 		return;
 
+	agent->dedupe_context = NULL;
 	release_context(context);
 }
 
@@ -1648,6 +1649,7 @@ static void process_query_result(struct data_vio *agent)
 
 	if (change_context_state(context, DEDUPE_CONTEXT_COMPLETE, DEDUPE_CONTEXT_IDLE)) {
 		agent->is_duplicate = decode_uds_advice(context);
+		agent->dedupe_context = NULL;
 		release_context(context);
 	}
 }
@@ -2321,6 +2323,7 @@ static void timeout_index_operations_callback(struct vdo_completion *completion)
 		 * send its requestor on its way.
 		 */
 		list_del_init(&context->list_entry);
+		context->requestor->dedupe_context = NULL;
 		continue_data_vio(context->requestor);
 		timed_out++;
 	}

drivers/md/dm-vdo/dm-vdo-target.c

@@ -1105,6 +1105,9 @@ static int vdo_message(struct dm_target *ti, unsigned int argc, char **argv,
 	if ((argc == 1) && (strcasecmp(argv[0], "stats") == 0)) {
 		vdo_write_stats(vdo, result_buffer, maxlen);
 		result = 1;
+	} else if ((argc == 1) && (strcasecmp(argv[0], "config") == 0)) {
+		vdo_write_config(vdo, &result_buffer, &maxlen);
+		result = 1;
 	} else {
 		result = vdo_status_to_errno(process_vdo_message(vdo, argc, argv));
 	}
@@ -2293,6 +2296,14 @@ static void handle_load_error(struct vdo_completion *completion)
 		return;
 	}
 
+	if ((completion->result == VDO_UNSUPPORTED_VERSION) &&
+	    (vdo->admin.phase == LOAD_PHASE_MAKE_DIRTY)) {
+		vdo_log_error("Aborting load due to unsupported version");
+		vdo->admin.phase = LOAD_PHASE_FINISHED;
+		load_callback(completion);
+		return;
+	}
+
 	vdo_log_error_strerror(completion->result,
 			       "Entering read-only mode due to load error");
 	vdo->admin.phase = LOAD_PHASE_WAIT_FOR_READ_ONLY;
@@ -2737,6 +2748,19 @@ static int vdo_preresume_registered(struct dm_target *ti, struct vdo *vdo)
 		vdo_log_info("starting device '%s'", device_name);
 		result = perform_admin_operation(vdo, LOAD_PHASE_START, load_callback,
 						 handle_load_error, "load");
+		if (result == VDO_UNSUPPORTED_VERSION) {
+			 /*
+			  * A component version is not supported. This can happen when the
+			  * recovery journal metadata is in an old version format. Abort the
+			  * load without saving the state.
+			  */
+			vdo->suspend_type = VDO_ADMIN_STATE_SUSPENDING;
+			perform_admin_operation(vdo, SUSPEND_PHASE_START,
+						suspend_callback, suspend_callback,
+						"suspend");
+			return result;
+		}
+
 		if ((result != VDO_SUCCESS) && (result != VDO_READ_ONLY)) {
 			/*
 			 * Something has gone very wrong. Make sure everything has drained and
@@ -2808,7 +2832,8 @@ static int vdo_preresume(struct dm_target *ti)
 
 	vdo_register_thread_device_id(&instance_thread, &vdo->instance);
 	result = vdo_preresume_registered(ti, vdo);
-	if ((result == VDO_PARAMETER_MISMATCH) || (result == VDO_INVALID_ADMIN_STATE))
+	if ((result == VDO_PARAMETER_MISMATCH) || (result == VDO_INVALID_ADMIN_STATE) ||
+	    (result == VDO_UNSUPPORTED_VERSION))
 		result = -EINVAL;
 	vdo_unregister_thread_device_id();
 	return vdo_status_to_errno(result);
@@ -2832,7 +2857,7 @@ static void vdo_resume(struct dm_target *ti)
 static struct target_type vdo_target_bio = {
 	.features = DM_TARGET_SINGLETON,
 	.name = "vdo",
-	.version = { 9, 0, 0 },
+	.version = { 9, 1, 0 },
 	.module = THIS_MODULE,
 	.ctr = vdo_ctr,
 	.dtr = vdo_dtr,

drivers/md/dm-vdo/indexer/chapter-index.c

@@ -177,7 +177,7 @@ int uds_pack_open_chapter_index_page(struct open_chapter_index *chapter_index,
 			if (list_number < 0)
 				return UDS_OVERFLOW;
 
-			next_list = first_list + list_number--,
+			next_list = first_list + list_number--;
 			result = uds_start_delta_index_search(delta_index, next_list, 0,
 							      &entry);
 			if (result != UDS_SUCCESS)

drivers/md/dm-vdo/io-submitter.c

@@ -346,7 +346,6 @@ void __submit_metadata_vio(struct vio *vio, physical_block_number_t physical,
 
 
 	VDO_ASSERT_LOG_ONLY(!code->quiescent, "I/O not allowed in state %s", code->name);
-	VDO_ASSERT_LOG_ONLY(vio->bio->bi_next == NULL, "metadata bio has no next bio");
 
 	vdo_reset_completion(completion);
 	completion->error_handler = error_handler;

drivers/md/dm-vdo/message-stats.c

@@ -4,6 +4,7 @@
  */
 
 #include "dedupe.h"
+#include "indexer.h"
 #include "logger.h"
 #include "memory-alloc.h"
 #include "message-stats.h"
@@ -430,3 +431,50 @@ int vdo_write_stats(struct vdo *vdo, char *buf, unsigned int maxlen)
 	vdo_free(stats);
 	return VDO_SUCCESS;
 }
+
+static void write_index_memory(u32 mem, char **buf, unsigned int *maxlen)
+{
+	char *prefix = "memorySize : ";
+
+	/* Convert index memory to fractional value */
+	if (mem == (u32)UDS_MEMORY_CONFIG_256MB)
+		write_string(prefix, "0.25, ", NULL, buf, maxlen);
+	else if (mem == (u32)UDS_MEMORY_CONFIG_512MB)
+		write_string(prefix, "0.50, ", NULL, buf, maxlen);
+	else if (mem == (u32)UDS_MEMORY_CONFIG_768MB)
+		write_string(prefix, "0.75, ", NULL, buf, maxlen);
+	else
+		write_u32(prefix, mem, ", ", buf, maxlen);
+}
+
+static void write_index_config(struct index_config *config, char **buf,
+			       unsigned int *maxlen)
+{
+	write_string("index :  ", "{ ", NULL, buf, maxlen);
+	/* index mem size */
+	write_index_memory(config->mem, buf, maxlen);
+	/* whether the index is sparse or not */
+	write_bool("isSparse : ", config->sparse, ", ", buf, maxlen);
+	write_string(NULL, "}", ", ", buf, maxlen);
+}
+
+int vdo_write_config(struct vdo *vdo, char **buf, unsigned int *maxlen)
+{
+	struct vdo_config *config = &vdo->states.vdo.config;
+
+	write_string(NULL, "{ ", NULL, buf, maxlen);
+	/* version */
+	write_u32("version : ", 1, ", ", buf, maxlen);
+	/* physical size */
+	write_block_count_t("physicalSize : ", config->physical_blocks * VDO_BLOCK_SIZE, ", ",
+			    buf, maxlen);
+	/* logical size */
+	write_block_count_t("logicalSize : ", config->logical_blocks * VDO_BLOCK_SIZE, ", ",
+			    buf, maxlen);
+	/* slab size */
+	write_block_count_t("slabSize : ", config->slab_size, ", ", buf, maxlen);
+	/* index config */
+	write_index_config(&vdo->geometry.index_config, buf, maxlen);
+	write_string(NULL, "}", NULL, buf, maxlen);
+	return VDO_SUCCESS;
+}

drivers/md/dm-vdo/message-stats.h

@@ -8,6 +8,7 @@
 
 #include "types.h"
 
+int vdo_write_config(struct vdo *vdo, char **buf, unsigned int *maxlen);
 int vdo_write_stats(struct vdo *vdo, char *buf, unsigned int maxlen);
 
 #endif /* VDO_MESSAGE_STATS_H */

drivers/md/dm-vdo/repair.c

@@ -1202,17 +1202,14 @@ static bool __must_check is_valid_recovery_journal_block(const struct recovery_j
  * @journal: The journal to use.
  * @header: The unpacked block header to check.
  * @sequence: The expected sequence number.
- * @type: The expected metadata type.
  *
  * Return: True if the block matches.
  */
 static bool __must_check is_exact_recovery_journal_block(const struct recovery_journal *journal,
 							 const struct recovery_block_header *header,
-							 sequence_number_t sequence,
+							 sequence_number_t sequence)
-							 enum vdo_metadata_type type)
 {
-	return ((header->metadata_type == type) &&
+	return ((header->sequence_number == sequence) &&
-		(header->sequence_number == sequence) &&
 		(is_valid_recovery_journal_block(journal, header, true)));
 }
 
@@ -1371,7 +1368,8 @@ static void extract_entries_from_block(struct repair_completion *repair,
 		get_recovery_journal_block_header(journal, repair->journal_data,
 						  sequence);
 
-	if (!is_exact_recovery_journal_block(journal, &header, sequence, format)) {
+	if (!is_exact_recovery_journal_block(journal, &header, sequence) ||
+	    (header.metadata_type != format)) {
 		/* This block is invalid, so skip it. */
 		return;
 	}
@@ -1557,10 +1555,13 @@ static int parse_journal_for_recovery(struct repair_completion *repair)
 	sequence_number_t i, head;
 	bool found_entries = false;
 	struct recovery_journal *journal = repair->completion.vdo->recovery_journal;
+	struct recovery_block_header header;
+	enum vdo_metadata_type expected_format;
 
 	head = min(repair->block_map_head, repair->slab_journal_head);
+	header = get_recovery_journal_block_header(journal, repair->journal_data, head);
+	expected_format = header.metadata_type;
 	for (i = head; i <= repair->highest_tail; i++) {
-		struct recovery_block_header header;
 		journal_entry_count_t block_entries;
 		u8 j;
 
@@ -1572,19 +1573,15 @@ static int parse_journal_for_recovery(struct repair_completion *repair)
 		};
 
 		header = get_recovery_journal_block_header(journal, repair->journal_data, i);
-		if (header.metadata_type == VDO_METADATA_RECOVERY_JOURNAL) {
+		if (!is_exact_recovery_journal_block(journal, &header, i)) {
-			/* This is an old format block, so we need to upgrade */
-			vdo_log_error_strerror(VDO_UNSUPPORTED_VERSION,
-					       "Recovery journal is in the old format, a read-only rebuild is required.");
-			vdo_enter_read_only_mode(repair->completion.vdo,
-						 VDO_UNSUPPORTED_VERSION);
-			return VDO_UNSUPPORTED_VERSION;
-		}
-
-		if (!is_exact_recovery_journal_block(journal, &header, i,
-						     VDO_METADATA_RECOVERY_JOURNAL_2)) {
 			/* A bad block header was found so this must be the end of the journal. */
 			break;
+		} else if (header.metadata_type != expected_format) {
+			/* There is a mix of old and new format blocks, so we need to rebuild. */
+			vdo_log_error_strerror(VDO_CORRUPT_JOURNAL,
+					       "Recovery journal is in an invalid format, a read-only rebuild is required.");
+			vdo_enter_read_only_mode(repair->completion.vdo, VDO_CORRUPT_JOURNAL);
+			return VDO_CORRUPT_JOURNAL;
 		}
 
 		block_entries = header.entry_count;
@@ -1620,8 +1617,14 @@ static int parse_journal_for_recovery(struct repair_completion *repair)
 			break;
 	}
 
-	if (!found_entries)
+	if (!found_entries) {
 		return validate_heads(repair);
+	} else if (expected_format == VDO_METADATA_RECOVERY_JOURNAL) {
+		/* All journal blocks have the old format, so we need to upgrade. */
+		vdo_log_error_strerror(VDO_UNSUPPORTED_VERSION,
+				       "Recovery journal is in the old format. Downgrade and complete recovery, then upgrade with a clean volume");
+		return VDO_UNSUPPORTED_VERSION;
+	}
 
 	/* Set the tail to the last valid tail block, if there is one. */
 	if (repair->tail_recovery_point.sector_count == 0)

drivers/md/dm-vdo/status-codes.c

@@ -28,7 +28,7 @@ const struct error_info vdo_status_list[] = {
 	{ "VDO_LOCK_ERROR", "A lock is held incorrectly" },
 	{ "VDO_READ_ONLY", "The device is in read-only mode" },
 	{ "VDO_SHUTTING_DOWN", "The device is shutting down" },
-	{ "VDO_CORRUPT_JOURNAL", "Recovery journal entries corrupted" },
+	{ "VDO_CORRUPT_JOURNAL", "Recovery journal corrupted" },
 	{ "VDO_TOO_MANY_SLABS", "Exceeds maximum number of slabs supported" },
 	{ "VDO_INVALID_FRAGMENT", "Compressed block fragment is invalid" },
 	{ "VDO_RETRY_AFTER_REBUILD", "Retry operation after rebuilding finishes" },

drivers/md/dm-vdo/status-codes.h

@@ -52,7 +52,7 @@ enum vdo_status_codes {
 	VDO_READ_ONLY,
 	/* the VDO is shutting down */
 	VDO_SHUTTING_DOWN,
-	/* the recovery journal has corrupt entries */
+	/* the recovery journal has corrupt entries or corrupt metadata */
 	VDO_CORRUPT_JOURNAL,
 	/* exceeds maximum number of slabs supported */
 	VDO_TOO_MANY_SLABS,

drivers/md/dm-verity-target.c

@@ -273,8 +273,10 @@ static int verity_handle_err(struct dm_verity *v, enum verity_block_type type,
 	if (v->mode == DM_VERITY_MODE_LOGGING)
 		return 0;
 
-	if (v->mode == DM_VERITY_MODE_RESTART)
+	if (v->mode == DM_VERITY_MODE_RESTART) {
-		kernel_restart("dm-verity device corrupted");
+		pr_emerg("dm-verity device corrupted\n");
+		emergency_restart();
+	}
 
 	if (v->mode == DM_VERITY_MODE_PANIC)
 		panic("dm-verity device corrupted");
@@ -597,6 +599,23 @@ static void verity_finish_io(struct dm_verity_io *io, blk_status_t status)
 	if (!static_branch_unlikely(&use_bh_wq_enabled) || !io->in_bh)
 		verity_fec_finish_io(io);
 
+	if (unlikely(status != BLK_STS_OK) &&
+	    unlikely(!(bio->bi_opf & REQ_RAHEAD)) &&
+	    !verity_is_system_shutting_down()) {
+		if (v->mode == DM_VERITY_MODE_RESTART ||
+		    v->mode == DM_VERITY_MODE_PANIC)
+			DMERR_LIMIT("%s has error: %s", v->data_dev->name,
+					blk_status_to_str(status));
+
+		if (v->mode == DM_VERITY_MODE_RESTART) {
+			pr_emerg("dm-verity device corrupted\n");
+			emergency_restart();
+		}
+
+		if (v->mode == DM_VERITY_MODE_PANIC)
+			panic("dm-verity device corrupted");
+	}
+
 	bio_endio(bio);
 }
 

drivers/md/dm-verity-verify-sig.c

@@ -127,7 +127,7 @@ int verity_verify_root_hash(const void *root_hash, size_t root_hash_len,
 #endif
 				VERIFYING_UNSPECIFIED_SIGNATURE, NULL, NULL);
 #ifdef CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG_PLATFORM_KEYRING
-	if (ret == -ENOKEY)
+	if (ret == -ENOKEY || ret == -EKEYREJECTED)
 		ret = verify_pkcs7_signature(root_hash, root_hash_len, sig_data,
 					sig_len,
 					VERIFY_USE_PLATFORM_KEYRING,

drivers/md/dm.c

@@ -2030,10 +2030,15 @@ static void dm_submit_bio(struct bio *bio)
 	struct dm_table *map;
 
 	map = dm_get_live_table(md, &srcu_idx);
+	if (unlikely(!map)) {
+		DMERR_LIMIT("%s: mapping table unavailable, erroring io",
+			    dm_device_name(md));
+		bio_io_error(bio);
+		goto out;
+	}
 
-	/* If suspended, or map not yet available, queue this IO for later */
+	/* If suspended, queue this IO for later */
-	if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) ||
+	if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags))) {
-	    unlikely(!map)) {
 		if (bio->bi_opf & REQ_NOWAIT)
 			bio_wouldblock_error(bio);
 		else if (bio->bi_opf & REQ_RAHEAD)

drivers/md/dm.h

@@ -109,7 +109,6 @@ void dm_zone_endio(struct dm_io *io, struct bio *clone);
 int dm_blk_report_zones(struct gendisk *disk, sector_t sector,
 			unsigned int nr_zones, report_zones_cb cb, void *data);
 bool dm_is_zone_write(struct mapped_device *md, struct bio *bio);
-int dm_zone_map_bio(struct dm_target_io *io);
 int dm_zone_get_reset_bitmap(struct mapped_device *md, struct dm_table *t,
 			     sector_t sector, unsigned int nr_zones,
 			     unsigned long *need_reset);
@@ -119,10 +118,6 @@ static inline bool dm_is_zone_write(struct mapped_device *md, struct bio *bio)
 {
 	return false;
 }
-static inline int dm_zone_map_bio(struct dm_target_io *tio)
-{
-	return DM_MAPIO_KILL;
-}
 #endif
 
 /*

include/linux/device-mapper.h

@@ -524,7 +524,6 @@ int dm_post_suspending(struct dm_target *ti);
 int dm_noflush_suspending(struct dm_target *ti);
 void dm_accept_partial_bio(struct bio *bio, unsigned int n_sectors);
 void dm_submit_bio_remap(struct bio *clone, struct bio *tgt_clone);
-union map_info *dm_get_rq_mapinfo(struct request *rq);
 
 #ifdef CONFIG_BLK_DEV_ZONED
 struct dm_report_zones_args {