dm: avoid spaces before function arguments or in favour of tabs

Signed-off-by: Heinz Mauelshagen <[e-mail]>
Signed-off-by: Mike Snitzer <[e-mail]>

drivers/md/dm-bio-prison-v1.c

···
 			     struct bio *holder,
 			     struct dm_bio_prison_cell *cell)
 {
-       memcpy(&cell->key, key, sizeof(cell->key));
-       cell->holder = holder;
-       bio_list_init(&cell->bios);
+	memcpy(&cell->key, key, sizeof(cell->key));
+	cell->holder = holder;
+	bio_list_init(&cell->bios);
 }
 
 static int cmp_keys(struct dm_cell_key *lhs,

drivers/md/dm-cache-target.c

···
  */
 static void issue_after_commit(struct batcher *b, struct bio *bio)
 {
-       bool commit_scheduled;
+	bool commit_scheduled;
 
-       spin_lock_irq(&b->lock);
-       commit_scheduled = b->commit_scheduled;
-       bio_list_add(&b->bios, bio);
-       spin_unlock_irq(&b->lock);
+	spin_lock_irq(&b->lock);
+	commit_scheduled = b->commit_scheduled;
+	bio_list_add(&b->bios, bio);
+	spin_unlock_irq(&b->lock);
 
-       if (commit_scheduled)
+	if (commit_scheduled)
 	       async_commit(b);
 }
 

drivers/md/dm-ebs-target.c

···
  * <offset>: offset in 512 bytes sectors into <dev_path>
  * <ebs>: emulated block size in units of 512 bytes exposed to the upper layer
  * [<ubs>]: underlying block size in units of 512 bytes imposed on the lower layer;
- * 	    optional, if not supplied, retrieve logical block size from underlying device
+ *	    optional, if not supplied, retrieve logical block size from underlying device
  */
 static int ebs_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 {

drivers/md/dm-exception-store.h

···
 	const char *name;
 	struct module *module;
 
-	int (*ctr) (struct dm_exception_store *store, char *options);
+	int (*ctr)(struct dm_exception_store *store, char *options);
 
 	/*
 	 * Destroys this object when you've finished with it.
 	 */
-	void (*dtr) (struct dm_exception_store *store);
+	void (*dtr)(struct dm_exception_store *store);
 
 	/*
 	 * The target shouldn't read the COW device until this is
 	 * called.  As exceptions are read from the COW, they are
 	 * reported back via the callback.
 	 */
-	int (*read_metadata) (struct dm_exception_store *store,
-			      int (*callback)(void *callback_context,
-					      chunk_t old, chunk_t new),
-			      void *callback_context);
+	int (*read_metadata)(struct dm_exception_store *store,
+			     int (*callback)(void *callback_context,
+					     chunk_t old, chunk_t new),
+			     void *callback_context);
 
 	/*
 	 * Find somewhere to store the next exception.
 	 */
-	int (*prepare_exception) (struct dm_exception_store *store,
-				  struct dm_exception *e);
+	int (*prepare_exception)(struct dm_exception_store *store,
+				 struct dm_exception *e);
 
 	/*
 	 * Update the metadata with this exception.
 	 */
-	void (*commit_exception) (struct dm_exception_store *store,
-				  struct dm_exception *e, int valid,
-				  void (*callback) (void *, int success),
-				  void *callback_context);
+	void (*commit_exception)(struct dm_exception_store *store,
+				 struct dm_exception *e, int valid,
+				 void (*callback)(void *, int success),
+				 void *callback_context);
 
 	/*
 	 * Returns 0 if the exception store is empty.
···
 	 * still-to-be-merged chunk and returns the number of
 	 * consecutive previous ones.
 	 */
-	int (*prepare_merge) (struct dm_exception_store *store,
-			      chunk_t *last_old_chunk, chunk_t *last_new_chunk);
+	int (*prepare_merge)(struct dm_exception_store *store,
+			     chunk_t *last_old_chunk, chunk_t *last_new_chunk);
 
 	/*
 	 * Clear the last n exceptions.
 	 * nr_merged must be <= the value returned by prepare_merge.
 	 */
-	int (*commit_merge) (struct dm_exception_store *store, int nr_merged);
+	int (*commit_merge)(struct dm_exception_store *store, int nr_merged);
 
 	/*
 	 * The snapshot is invalid, note this in the metadata.
 	 */
-	void (*drop_snapshot) (struct dm_exception_store *store);
+	void (*drop_snapshot)(struct dm_exception_store *store);
 
-	unsigned int (*status) (struct dm_exception_store *store,
-				status_type_t status, char *result,
-				unsigned int maxlen);
+	unsigned int (*status)(struct dm_exception_store *store,
+			       status_type_t status, char *result,
+			       unsigned int maxlen);
 
 	/*
 	 * Return how full the snapshot is.
 	 */
-	void (*usage) (struct dm_exception_store *store,
-		       sector_t *total_sectors, sector_t *sectors_allocated,
-		       sector_t *metadata_sectors);
+	void (*usage)(struct dm_exception_store *store,
+		      sector_t *total_sectors, sector_t *sectors_allocated,
+		      sector_t *metadata_sectors);
 
 	/* For internal device-mapper use only. */
 	struct list_head list;

drivers/md/dm-ioctl.c

···
 };
 
 struct vers_iter {
-    size_t param_size;
-    struct dm_target_versions *vers, *old_vers;
-    char *end;
-    uint32_t flags;
+	size_t param_size;
+	struct dm_target_versions *vers, *old_vers;
+	char *end;
+	uint32_t flags;
 };
 
 
···
 
 static void list_version_get_needed(struct target_type *tt, void *needed_param)
 {
-    size_t *needed = needed_param;
+	size_t *needed = needed_param;
 
-    *needed += sizeof(struct dm_target_versions);
-    *needed += strlen(tt->name) + 1;
-    *needed += ALIGN_MASK;
+	*needed += sizeof(struct dm_target_versions);
+	*needed += strlen(tt->name) + 1;
+	*needed += ALIGN_MASK;
 }
 
 static void list_version_get_info(struct target_type *tt, void *param)
 {
-    struct vers_iter *info = param;
+	struct vers_iter *info = param;
 
-    /* Check space - it might have changed since the first iteration */
-    if ((char *)info->vers + sizeof(tt->version) + strlen(tt->name) + 1 >
-	info->end) {
+	/* Check space - it might have changed since the first iteration */
+	if ((char *)info->vers + sizeof(tt->version) + strlen(tt->name) + 1 > info->end) {
+		info->flags = DM_BUFFER_FULL_FLAG;
+		return;
+	}
 
-	info->flags = DM_BUFFER_FULL_FLAG;
-	return;
-    }
+	if (info->old_vers)
+		info->old_vers->next = (uint32_t) ((void *)info->vers - (void *)info->old_vers);
 
-    if (info->old_vers)
-	info->old_vers->next = (uint32_t) ((void *)info->vers -
-					   (void *)info->old_vers);
-    info->vers->version[0] = tt->version[0];
-    info->vers->version[1] = tt->version[1];
-    info->vers->version[2] = tt->version[2];
-    info->vers->next = 0;
-    strcpy(info->vers->name, tt->name);
+	info->vers->version[0] = tt->version[0];
+	info->vers->version[1] = tt->version[1];
+	info->vers->version[2] = tt->version[2];
+	info->vers->next = 0;
+	strcpy(info->vers->name, tt->name);
 
-    info->old_vers = info->vers;
-    info->vers = align_ptr((void *)(info->vers + 1) + strlen(tt->name) + 1);
+	info->old_vers = info->vers;
+	info->vers = align_ptr((void *)(info->vers + 1) + strlen(tt->name) + 1);
 }
 
 static int __list_versions(struct dm_ioctl *param, size_t param_size, const char *name)
···
 
 static struct miscdevice _dm_misc = {
 	.minor		= MAPPER_CTRL_MINOR,
-	.name  		= DM_NAME,
+	.name		= DM_NAME,
 	.nodename	= DM_DIR "/" DM_CONTROL_NODE,
-	.fops  		= &_ctl_fops
+	.fops		= &_ctl_fops
 };
 
 MODULE_ALIAS_MISCDEV(MAPPER_CTRL_MINOR);

drivers/md/dm-kcopyd.c

···
  * of successful jobs.
  */
 static int process_jobs(struct list_head *jobs, struct dm_kcopyd_client *kc,
-			int (*fn) (struct kcopyd_job *))
+			int (*fn)(struct kcopyd_job *))
 {
 	struct kcopyd_job *job;
 	int r, count = 0;

drivers/md/dm-path-selector.h

···
 	/*
 	 * Constructs a path selector object, takes custom arguments
 	 */
-	int (*create) (struct path_selector *ps, unsigned int argc, char **argv);
-	void (*destroy) (struct path_selector *ps);
+	int (*create)(struct path_selector *ps, unsigned int argc, char **argv);
+	void (*destroy)(struct path_selector *ps);
 
 	/*
 	 * Add an opaque path object, along with some selector specific
 	 * path args (eg, path priority).
 	 */
-	int (*add_path) (struct path_selector *ps, struct dm_path *path,
-			 int argc, char **argv, char **error);
+	int (*add_path)(struct path_selector *ps, struct dm_path *path,
+			int argc, char **argv, char **error);
 
 	/*
 	 * Chooses a path for this io, if no paths are available then
 	 * NULL will be returned.
 	 */
-	struct dm_path *(*select_path) (struct path_selector *ps,
-					size_t nr_bytes);
+	struct dm_path *(*select_path)(struct path_selector *ps, size_t nr_bytes);
 
 	/*
 	 * Notify the selector that a path has failed.
 	 */
-	void (*fail_path) (struct path_selector *ps, struct dm_path *p);
+	void (*fail_path)(struct path_selector *ps, struct dm_path *p);
 
 	/*
 	 * Ask selector to reinstate a path.
 	 */
-	int (*reinstate_path) (struct path_selector *ps, struct dm_path *p);
+	int (*reinstate_path)(struct path_selector *ps, struct dm_path *p);
 
 	/*
 	 * Table content based on parameters added in ps_add_path_fn
 	 * or path selector status
 	 */
-	int (*status) (struct path_selector *ps, struct dm_path *path,
-		       status_type_t type, char *result, unsigned int maxlen);
+	int (*status)(struct path_selector *ps, struct dm_path *path,
+		      status_type_t type, char *result, unsigned int maxlen);
 
-	int (*start_io) (struct path_selector *ps, struct dm_path *path,
-			 size_t nr_bytes);
-	int (*end_io) (struct path_selector *ps, struct dm_path *path,
-		       size_t nr_bytes, u64 start_time);
+	int (*start_io)(struct path_selector *ps, struct dm_path *path,
+			size_t nr_bytes);
+	int (*end_io)(struct path_selector *ps, struct dm_path *path,
+		      size_t nr_bytes, u64 start_time);
 };
 
 /* Register a path selector */

drivers/md/dm-ps-queue-length.c

···
 
 	/*
 	 * Arguments: [<repeat_count>]
-	 * 	<repeat_count>: The number of I/Os before switching path.
-	 * 			If not given, default (QL_MIN_IO) is used.
+	 *	<repeat_count>: The number of I/Os before switching path.
+	 *			If not given, default (QL_MIN_IO) is used.
 	 */
 	if (argc > 1) {
 		*error = "queue-length ps: incorrect number of arguments";

drivers/md/dm-ps-service-time.c

···
 
 	/*
 	 * Arguments: [<repeat_count> [<relative_throughput>]]
-	 * 	<repeat_count>: The number of I/Os before switching path.
-	 * 			If not given, default (ST_MIN_IO) is used.
-	 * 	<relative_throughput>: The relative throughput value of
+	 *	<repeat_count>: The number of I/Os before switching path.
+	 *			If not given, default (ST_MIN_IO) is used.
+	 *	<relative_throughput>: The relative throughput value of
 	 *			the path among all paths in the path-group.
-	 * 			The valid range: 0-<ST_MAX_RELATIVE_THROUGHPUT>
+	 *			The valid range: 0-<ST_MAX_RELATIVE_THROUGHPUT>
 	 *			If not given, minimum value '1' is used.
 	 *			If '0' is given, the path isn't selected while
 	 *			other paths having a positive value are	available.

drivers/md/dm-raid1.c

···
  * We do different things with the write io depending on the
  * state of the region that it's in:
  *
- * SYNC: 	increment pending, use kcopyd to write to *all* mirrors
+ * SYNC:	increment pending, use kcopyd to write to *all* mirrors
  * RECOVERING:	delay the io until recovery completes
  * NOSYNC:	increment pending, just write to the default mirror
  *---------------------------------------------------------------------

drivers/md/dm-snap-persistent.c

···
 
 static void persistent_commit_exception(struct dm_exception_store *store,
 					struct dm_exception *e, int valid,
-					void (*callback) (void *, int success),
+					void (*callback)(void *, int success),
 					void *callback_context)
 {
 	unsigned int i;

drivers/md/dm-snap-transient.c

···
 
 static void transient_commit_exception(struct dm_exception_store *store,
 				       struct dm_exception *e, int valid,
-				       void (*callback) (void *, int success),
+				       void (*callback)(void *, int success),
 				       void *callback_context)
 {
 	/* Just succeed */

drivers/md/dm-snap.c

···
 	 * The merge operation failed if this flag is set.
 	 * Failure modes are handled as follows:
 	 * - I/O error reading the header
-	 *   	=> don't load the target; abort.
+	 *	=> don't load the target; abort.
 	 * - Header does not have "valid" flag set
-	 *   	=> use the origin; forget about the snapshot.
+	 *	=> use the origin; forget about the snapshot.
 	 * - I/O error when reading exceptions
-	 *   	=> don't load the target; abort.
+	 *	=> don't load the target; abort.
 	 *         (We can't use the intermediate origin state.)
 	 * - I/O error while merging
 	 *	=> stop merging; set merge_failed; process I/O normally.

drivers/md/dm-uevent.c

···
  * Device Mapper Uevent Support (dm-uevent)
  *
  * Copyright IBM Corporation, 2007
- * 	Author: Mike Anderson <[e-mail]>
+ *	Author: Mike Anderson <[e-mail]>
  */
 #include <linux/list.h>
 #include <linux/slab.h>