Merge v6.15.4linux-rolling-stable

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

5 files changed, 39 insertions, 9 deletions

diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 9e615b4f1f5e..785af4816584 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -133,10 +133,9 @@ static void queue_bio(struct mirror_set *ms, struct bio *bio, int rw)
 	spin_lock_irqsave(&ms->lock, flags);
 	should_wake = !(bl->head);
 	bio_list_add(bl, bio);
-	spin_unlock_irqrestore(&ms->lock, flags);
-
 	if (should_wake)
 		wakeup_mirrord(ms);
+	spin_unlock_irqrestore(&ms->lock, flags);
 }
 
 static void dispatch_bios(void *context, struct bio_list *bio_list)
@@ -646,9 +645,9 @@ static void write_callback(unsigned long error, void *context)
 	if (!ms->failures.head)
 		should_wake = 1;
 	bio_list_add(&ms->failures, bio);
-	spin_unlock_irqrestore(&ms->lock, flags);
 	if (should_wake)
 		wakeup_mirrord(ms);
+	spin_unlock_irqrestore(&ms->lock, flags);
 }
 
 static void do_write(struct mirror_set *ms, struct bio *bio)
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index e009bba52d4c..dd074c8ecbba 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -431,6 +431,13 @@ static int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
 		return 0;
 	}
 
+	mutex_lock(&q->limits_lock);
+	/*
+	 * BLK_FEAT_ATOMIC_WRITES is not inherited from the bottom device in
+	 * blk_stack_limits(), so do it manually.
+	 */
+	limits->features |= (q->limits.features & BLK_FEAT_ATOMIC_WRITES);
+
 	if (blk_stack_limits(limits, &q->limits,
 			get_start_sect(bdev) + start) < 0)
 		DMWARN("%s: adding target device %pg caused an alignment inconsistency: "
@@ -448,6 +455,7 @@ static int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
 	 */
 	if (!dm_target_has_integrity(ti->type))
 		queue_limits_stack_integrity_bdev(limits, bdev);
+	mutex_unlock(&q->limits_lock);
 	return 0;
 }
 
@@ -1733,8 +1741,12 @@ static int device_not_write_zeroes_capable(struct dm_target *ti, struct dm_dev *
 					   sector_t start, sector_t len, void *data)
 {
 	struct request_queue *q = bdev_get_queue(dev->bdev);
+	int b;
 
-	return !q->limits.max_write_zeroes_sectors;
+	mutex_lock(&q->limits_lock);
+	b = !q->limits.max_write_zeroes_sectors;
+	mutex_unlock(&q->limits_lock);
+	return b;
 }
 
 static bool dm_table_supports_write_zeroes(struct dm_table *t)
diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c
index 0c41949db784..631a887b487c 100644
--- a/drivers/md/dm-verity-fec.c
+++ b/drivers/md/dm-verity-fec.c
@@ -593,6 +593,10 @@ int verity_fec_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v,
 	(*argc)--;
 
 	if (!strcasecmp(arg_name, DM_VERITY_OPT_FEC_DEV)) {
+		if (v->fec->dev) {
+			ti->error = "FEC device already specified";
+			return -EINVAL;
+		}
 		r = dm_get_device(ti, arg_value, BLK_OPEN_READ, &v->fec->dev);
 		if (r) {
 			ti->error = "FEC device lookup failed";
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 3c427f18a04b..ed49bcbd224f 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -1120,6 +1120,9 @@ static int verity_alloc_most_once(struct dm_verity *v)
 {
 	struct dm_target *ti = v->ti;
 
+	if (v->validated_blocks)
+		return 0;
+
 	/* the bitset can only handle INT_MAX blocks */
 	if (v->data_blocks > INT_MAX) {
 		ti->error = "device too large to use check_at_most_once";
@@ -1143,6 +1146,9 @@ static int verity_alloc_zero_digest(struct dm_verity *v)
 	struct dm_verity_io *io;
 	u8 *zero_data;
 
+	if (v->zero_digest)
+		return 0;
+
 	v->zero_digest = kmalloc(v->digest_size, GFP_KERNEL);
 
 	if (!v->zero_digest)
@@ -1577,7 +1583,7 @@ static int verity_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 			goto bad;
 	}
 
-	/* Root hash signature is  a optional parameter*/
+	/* Root hash signature is an optional parameter */
 	r = verity_verify_root_hash(root_hash_digest_to_validate,
 				    strlen(root_hash_digest_to_validate),
 				    verify_args.sig,
diff --git a/drivers/md/dm-verity-verify-sig.c b/drivers/md/dm-verity-verify-sig.c
index a9e2c6c0a33c..d5261a0e4232 100644
--- a/drivers/md/dm-verity-verify-sig.c
+++ b/drivers/md/dm-verity-verify-sig.c
@@ -71,9 +71,14 @@ int verity_verify_sig_parse_opt_args(struct dm_arg_set *as,
 				     const char *arg_name)
 {
 	struct dm_target *ti = v->ti;
-	int ret = 0;
+	int ret;
 	const char *sig_key = NULL;
 
+	if (v->signature_key_desc) {
+		ti->error = DM_VERITY_VERIFY_ERR("root_hash_sig_key_desc already specified");
+		return -EINVAL;
+	}
+
 	if (!*argc) {
 		ti->error = DM_VERITY_VERIFY_ERR("Signature key not specified");
 		return -EINVAL;
@@ -83,14 +88,18 @@ int verity_verify_sig_parse_opt_args(struct dm_arg_set *as,
 	(*argc)--;
 
 	ret = verity_verify_get_sig_from_key(sig_key, sig_opts);
-	if (ret < 0)
+	if (ret < 0) {
 		ti->error = DM_VERITY_VERIFY_ERR("Invalid key specified");
+		return ret;
+	}
 
 	v->signature_key_desc = kstrdup(sig_key, GFP_KERNEL);
-	if (!v->signature_key_desc)
+	if (!v->signature_key_desc) {
+		ti->error = DM_VERITY_VERIFY_ERR("Could not allocate memory for signature key");
 		return -ENOMEM;
+	}
 
-	return ret;
+	return 0;
 }
 
 /*