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-rw-r--r--block/blk-crypto.c20
-rw-r--r--drivers/md/dm-table.c19
-rw-r--r--include/linux/blk-crypto.h4
3 files changed, 16 insertions, 27 deletions
diff --git a/block/blk-crypto.c b/block/blk-crypto.c
index d0c7feb447e9..e800f305e9ed 100644
--- a/block/blk-crypto.c
+++ b/block/blk-crypto.c
@@ -13,6 +13,7 @@
#include <linux/blkdev.h>
#include <linux/blk-crypto-profile.h>
#include <linux/module.h>
+#include <linux/ratelimit.h>
#include <linux/slab.h>
#include "blk-crypto-internal.h"
@@ -408,21 +409,18 @@ int blk_crypto_start_using_key(struct block_device *bdev,
* Upper layers (filesystems) must call this function to ensure that a key is
* evicted from any hardware that it might have been programmed into. The key
* must not be in use by any in-flight IO when this function is called.
- *
- * Return: 0 on success or if the key wasn't in any keyslot; -errno on error.
*/
-int blk_crypto_evict_key(struct block_device *bdev,
- const struct blk_crypto_key *key)
+void blk_crypto_evict_key(struct block_device *bdev,
+ const struct blk_crypto_key *key)
{
struct request_queue *q = bdev_get_queue(bdev);
+ int err;
if (blk_crypto_config_supported_natively(bdev, &key->crypto_cfg))
- return __blk_crypto_evict_key(q->crypto_profile, key);
-
- /*
- * If the block_device didn't support the key, then blk-crypto-fallback
- * may have been used, so try to evict the key from blk-crypto-fallback.
- */
- return blk_crypto_fallback_evict_key(key);
+ err = __blk_crypto_evict_key(q->crypto_profile, key);
+ else
+ err = blk_crypto_fallback_evict_key(key);
+ if (err)
+ pr_warn_ratelimited("%pg: error %d evicting key\n", bdev, err);
}
EXPORT_SYMBOL_GPL(blk_crypto_evict_key);
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 2055a758541d..7899f5fb4c13 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1202,21 +1202,12 @@ struct dm_crypto_profile {
struct mapped_device *md;
};
-struct dm_keyslot_evict_args {
- const struct blk_crypto_key *key;
- int err;
-};
-
static int dm_keyslot_evict_callback(struct dm_target *ti, struct dm_dev *dev,
sector_t start, sector_t len, void *data)
{
- struct dm_keyslot_evict_args *args = data;
- int err;
+ const struct blk_crypto_key *key = data;
- err = blk_crypto_evict_key(dev->bdev, args->key);
- if (!args->err)
- args->err = err;
- /* Always try to evict the key from all devices. */
+ blk_crypto_evict_key(dev->bdev, key);
return 0;
}
@@ -1229,7 +1220,6 @@ static int dm_keyslot_evict(struct blk_crypto_profile *profile,
{
struct mapped_device *md =
container_of(profile, struct dm_crypto_profile, profile)->md;
- struct dm_keyslot_evict_args args = { key };
struct dm_table *t;
int srcu_idx;
@@ -1242,11 +1232,12 @@ static int dm_keyslot_evict(struct blk_crypto_profile *profile,
if (!ti->type->iterate_devices)
continue;
- ti->type->iterate_devices(ti, dm_keyslot_evict_callback, &args);
+ ti->type->iterate_devices(ti, dm_keyslot_evict_callback,
+ (void *)key);
}
dm_put_live_table(md, srcu_idx);
- return args.err;
+ return 0;
}
static int
diff --git a/include/linux/blk-crypto.h b/include/linux/blk-crypto.h
index 1e3e5d0adf12..5e5822c18ee4 100644
--- a/include/linux/blk-crypto.h
+++ b/include/linux/blk-crypto.h
@@ -95,8 +95,8 @@ int blk_crypto_init_key(struct blk_crypto_key *blk_key, const u8 *raw_key,
int blk_crypto_start_using_key(struct block_device *bdev,
const struct blk_crypto_key *key);
-int blk_crypto_evict_key(struct block_device *bdev,
- const struct blk_crypto_key *key);
+void blk_crypto_evict_key(struct block_device *bdev,
+ const struct blk_crypto_key *key);
bool blk_crypto_config_supported_natively(struct block_device *bdev,
const struct blk_crypto_config *cfg);