dm: add argument identifier names

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

drivers/md/dm-bufio.c

@@ -92,8 +92,8 @@ struct dm_bufio_client {
 	struct block_device *bdev;
 	unsigned int block_size;
 	s8 sectors_per_block_bits;
-	void (*alloc_callback)(struct dm_buffer *);
-	void (*write_callback)(struct dm_buffer *);
+	void (*alloc_callback)(struct dm_buffer *buf);
+	void (*write_callback)(struct dm_buffer *buf);
 	struct kmem_cache *slab_buffer;
 	struct kmem_cache *slab_cache;
 	struct dm_io_client *dm_io;
@@ -156,7 +156,7 @@ struct dm_buffer {
 	unsigned int write_end;
 	struct dm_bufio_client *c;
 	struct list_head write_list;
-	void (*end_io)(struct dm_buffer *, blk_status_t);
+	void (*end_io)(struct dm_buffer *buf, blk_status_t stat);
 #ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
 #define MAX_STACK 10
 	unsigned int stack_len;

drivers/md/dm-core.h

@@ -217,7 +217,7 @@ struct dm_table {
 	struct list_head devices;
 
 	/* events get handed up using this callback */
-	void (*event_fn)(void *);
+	void (*event_fn)(void *data);
 	void *event_context;
 
 	struct dm_md_mempools *mempools;

drivers/md/dm-era-target.c

@@ -682,7 +682,7 @@ struct digest {
 	__le32 value;
 	struct dm_disk_bitset info;
 
-	int (*step)(struct era_metadata *, struct digest *);
+	int (*step)(struct era_metadata *md, struct digest *d);
 };
 
 static int metadata_digest_lookup_writeset(struct era_metadata *md,
@@ -1193,8 +1193,8 @@ struct era {
 struct rpc {
 	struct list_head list;
 
-	int (*fn0)(struct era_metadata *);
-	int (*fn1)(struct era_metadata *, void *);
+	int (*fn0)(struct era_metadata *md);
+	int (*fn1)(struct era_metadata *md, void *ref);
 	void *arg;
 	int result;
 
@@ -1388,7 +1388,7 @@ static int perform_rpc(struct era *era, struct rpc *rpc)
 	return rpc->result;
 }
 
-static int in_worker0(struct era *era, int (*fn)(struct era_metadata *))
+static int in_worker0(struct era *era, int (*fn)(struct era_metadata *md))
 {
 	struct rpc rpc;
 	rpc.fn0 = fn;
@@ -1398,7 +1398,7 @@ static int in_worker0(struct era *era, int (*fn)(struct era_metadata *))
 }
 
 static int in_worker1(struct era *era,
-		      int (*fn)(struct era_metadata *, void *), void *arg)
+		      int (*fn)(struct era_metadata *md, void *ref), void *arg)
 {
 	struct rpc rpc;
 	rpc.fn0 = NULL;

drivers/md/dm-snap-persistent.c

@@ -95,7 +95,7 @@ struct core_exception {
 };
 
 struct commit_callback {
-	void (*callback)(void *, int success);
+	void (*callback)(void *ref, int success);
 	void *context;
 };
 

drivers/md/dm-sysfs.c

@@ -12,8 +12,8 @@
 
 struct dm_sysfs_attr {
 	struct attribute attr;
-	ssize_t (*show)(struct mapped_device *, char *);
-	ssize_t (*store)(struct mapped_device *, const char *, size_t count);
+	ssize_t (*show)(struct mapped_device *md, char *p);
+	ssize_t (*store)(struct mapped_device *md, const char *p, size_t count);
 };
 
 #define DM_ATTR_RO(_name) \