dm: remove unnecessary braces from single statement blocks

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

drivers/md/dm-integrity.c

@@ -630,11 +630,10 @@ static bool block_bitmap_op(struct dm_integrity_c *ic, struct page_list *bitmap,
 	end_bit %= PAGE_SIZE * 8;
 
 repeat:
-	if (page < end_page) {
+	if (page < end_page)
 		this_end_bit = PAGE_SIZE * 8 - 1;
-	} else {
+	else
 		this_end_bit = end_bit;
-	}
 
 	data = lowmem_page_address(bitmap[page].page);
 
@@ -1251,14 +1250,13 @@ static bool add_new_range(struct dm_integrity_c *ic, struct dm_integrity_range *
 		struct dm_integrity_range *range = container_of(*n, struct dm_integrity_range, node);
 
 		parent = *n;
-		if (new_range->logical_sector + new_range->n_sectors <= range->logical_sector) {
+		if (new_range->logical_sector + new_range->n_sectors <= range->logical_sector)
 			n = &range->node.rb_left;
-		} else if (new_range->logical_sector >= range->logical_sector + range->n_sectors) {
+		else if (new_range->logical_sector >= range->logical_sector + range->n_sectors)
 			n = &range->node.rb_right;
-		} else {
+		else
 			return false;
 	}
-	}
 
 	rb_link_node(&new_range->node, parent, n);
 	rb_insert_color(&new_range->node, &ic->in_progress);
@@ -1364,16 +1362,15 @@ static unsigned int find_journal_node(struct dm_integrity_c *ic, sector_t sector
 	while (n) {
 		struct journal_node *j = container_of(n, struct journal_node, node);
 
-		if (sector == j->sector) {
+		if (sector == j->sector)
 			found = j - ic->journal_tree;
-		}
+
 		if (sector < j->sector) {
 			*next_sector = j->sector;
 			n = j->node.rb_left;
-		} else {
+		} else
 			n = j->node.rb_right;
 	}
-	}
 
 	return found;
 }
@@ -1501,9 +1498,8 @@ static int dm_integrity_rw_tag(struct dm_integrity_c *ic, unsigned char *tag, se
 			*metadata_offset = 0;
 		}
 
-		if (unlikely(!is_power_of_2(ic->tag_size))) {
+		if (unlikely(!is_power_of_2(ic->tag_size)))
 			hash_offset = (hash_offset + to_copy) % ic->tag_size;
-		}
 
 		total_size -= to_copy;
 	} while (unlikely(total_size));
@@ -2104,14 +2100,12 @@ static bool __journal_read_write(struct dm_integrity_io *dio, struct bio *bio,
 		smp_mb();
 		if (unlikely(waitqueue_active(&ic->copy_to_journal_wait)))
 			wake_up(&ic->copy_to_journal_wait);
-		if (READ_ONCE(ic->free_sectors) <= ic->free_sectors_threshold) {
+		if (READ_ONCE(ic->free_sectors) <= ic->free_sectors_threshold)
 			queue_work(ic->commit_wq, &ic->commit_work);
-		} else {
+		else
 			schedule_autocommit(ic);
-		}
-	} else {
+	} else
 		remove_range(ic, &dio->range);
-	}
 
 	if (unlikely(bio->bi_iter.bi_size)) {
 		sector_t area, offset;
@@ -2569,10 +2563,9 @@ static void do_journal_write(struct dm_integrity_c *ic, unsigned int write_start
 					mempool_free(io, &ic->journal_io_mempool);
 					goto skip_io;
 				}
-				for (l = j; l < k; l++) {
+				for (l = j; l < k; l++)
 					remove_journal_node(ic, &section_node[l]);
 			}
-			}
 			spin_unlock_irq(&ic->endio_wait.lock);
 
 			metadata_block = get_metadata_sector_and_offset(ic, area, offset, &metadata_offset);
@@ -2598,10 +2591,9 @@ static void do_journal_write(struct dm_integrity_c *ic, unsigned int write_start
 				journal_entry_set_unused(je2);
 				r = dm_integrity_rw_tag(ic, journal_entry_tag(ic, je2), &metadata_block, &metadata_offset,
 							ic->tag_size, TAG_WRITE);
-				if (unlikely(r)) {
+				if (unlikely(r))
 					dm_integrity_io_error(ic, "reading tags", r);
 			}
-			}
 
 			atomic_inc(&comp.in_flight);
 			copy_from_journal(ic, i, j << ic->sb->log2_sectors_per_block,
@@ -2711,9 +2703,9 @@ static void integrity_recalc(struct work_struct *w)
 	n_sectors = range.n_sectors;
 
 	if (ic->mode == 'B') {
-		if (block_bitmap_op(ic, ic->recalc_bitmap, logical_sector, n_sectors, BITMAP_OP_TEST_ALL_CLEAR)) {
+		if (block_bitmap_op(ic, ic->recalc_bitmap, logical_sector, n_sectors, BITMAP_OP_TEST_ALL_CLEAR))
 			goto advance_and_next;
-		}
+
 		while (block_bitmap_op(ic, ic->recalc_bitmap, logical_sector,
 				       ic->sectors_per_block, BITMAP_OP_TEST_ALL_CLEAR)) {
 			logical_sector += ic->sectors_per_block;
@@ -2732,9 +2724,9 @@ static void integrity_recalc(struct work_struct *w)
 
 	if (unlikely(++super_counter == RECALC_WRITE_SUPER)) {
 		recalc_write_super(ic);
-		if (ic->mode == 'B') {
+		if (ic->mode == 'B')
 			queue_delayed_work(ic->commit_wq, &ic->bitmap_flush_work, ic->bitmap_flush_interval);
-		}
+
 		super_counter = 0;
 	}
 
@@ -4417,9 +4409,9 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
 
 	log2_blocks_per_bitmap_bit = log2_sectors_per_bitmap_bit - ic->sb->log2_sectors_per_block;
 	ic->log2_blocks_per_bitmap_bit = log2_blocks_per_bitmap_bit;
-	if (should_write_sb) {
+	if (should_write_sb)
 		ic->sb->log2_blocks_per_bitmap_bit = log2_blocks_per_bitmap_bit;
-	}
+
 	n_bitmap_bits = ((ic->provided_data_sectors >> ic->sb->log2_sectors_per_block)
 				+ (((sector_t)1 << log2_blocks_per_bitmap_bit) - 1)) >> log2_blocks_per_bitmap_bit;
 	ic->n_bitmap_blocks = DIV_ROUND_UP(n_bitmap_bits, BITMAP_BLOCK_SIZE * 8);

drivers/md/dm-stats.c

@@ -601,13 +601,11 @@ static void dm_stat_for_entry(struct dm_stat *s, size_t entry,
 			while (lo + 1 < hi) {
 				unsigned int mid = (lo + hi) / 2;
 
-				if (s->histogram_boundaries[mid - 1] > duration) {
+				if (s->histogram_boundaries[mid - 1] > duration)
 					hi = mid;
-				} else {
+				else
 					lo = mid;
 			}
-
-			}
 			p->histogram[lo]++;
 		}
 	}
@@ -900,10 +898,9 @@ static int dm_stats_print(struct dm_stats *stats, int id,
 		if (s->n_histogram_entries) {
 			unsigned int i;
 
-			for (i = 0; i < s->n_histogram_entries + 1; i++) {
+			for (i = 0; i < s->n_histogram_entries + 1; i++)
 				DMEMIT("%s%llu", !i ? " " : ":", shared->tmp.histogram[i]);
 		}
-		}
 		DMEMIT("\n");
 
 		if (unlikely(sz + 1 >= maxlen))

drivers/md/dm-stripe.c

@@ -369,14 +369,12 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
 	switch (type) {
 	case STATUSTYPE_INFO:
 		DMEMIT("%d ", sc->stripes);
-		for (i = 0; i < sc->stripes; i++)  {
+		for (i = 0; i < sc->stripes; i++)
 			DMEMIT("%s ", sc->stripe[i].dev->name);
-		}
+
 		DMEMIT("1 ");
-		for (i = 0; i < sc->stripes; i++) {
-			DMEMIT("%c", atomic_read(&(sc->stripe[i].error_count)) ?
-			       'D' : 'A');
-		}
+		for (i = 0; i < sc->stripes; i++)
+			DMEMIT("%c", atomic_read(&(sc->stripe[i].error_count)) ?  'D' : 'A');
 		break;
 
 	case STATUSTYPE_TABLE:

drivers/md/dm-thin-metadata.c

@@ -1536,9 +1536,9 @@ static int __find_block(struct dm_thin_device *td, dm_block_t block,
 	dm_block_t keys[2] = { td->id, block };
 	struct dm_btree_info *info;
 
-	if (can_issue_io) {
+	if (can_issue_io)
 		info = &pmd->info;
-	} else
+	else
 		info = &pmd->nb_info;
 
 	r = dm_btree_lookup(info, pmd->root, keys, &value);

drivers/md/dm-writecache.c

@@ -1984,9 +1984,8 @@ static void writecache_writeback(struct work_struct *work)
 			goto restart;
 	}
 
-	if (wc->overwrote_committed) {
+	if (wc->overwrote_committed)
 		writecache_wait_for_ios(wc, WRITE);
-	}
 
 	n_walked = 0;
 	INIT_LIST_HEAD(&skipped);
@@ -2015,9 +2014,9 @@ static void writecache_writeback(struct work_struct *work)
 		} else
 			e = container_of(wc->lru.prev, struct wc_entry, lru);
 		BUG_ON(e->write_in_progress);
-		if (unlikely(!writecache_entry_is_committed(wc, e))) {
+		if (unlikely(!writecache_entry_is_committed(wc, e)))
 			writecache_flush(wc);
-		}
+
 		node = rb_prev(&e->rb_node);
 		if (node) {
 			f = container_of(node, struct wc_entry, rb_node);

drivers/md/persistent-data/dm-btree-spine.c

@@ -133,9 +133,8 @@ void exit_ro_spine(struct ro_spine *s)
 {
 	int i;
 
-	for (i = 0; i < s->count; i++) {
+	for (i = 0; i < s->count; i++)
 		unlock_block(s->info, s->nodes[i]);
-	}
 }
 
 int ro_step(struct ro_spine *s, dm_block_t new_child)
@@ -184,9 +183,8 @@ void exit_shadow_spine(struct shadow_spine *s)
 {
 	int i;
 
-	for (i = 0; i < s->count; i++) {
+	for (i = 0; i < s->count; i++)
 		unlock_block(s->info, s->nodes[i]);
-	}
 }
 
 int shadow_step(struct shadow_spine *s, dm_block_t b,

drivers/md/persistent-data/dm-space-map-disk.c

@@ -95,9 +95,8 @@ static int sm_disk_set_count(struct dm_space_map *sm, dm_block_t b,
 	struct sm_disk *smd = container_of(sm, struct sm_disk, sm);
 
 	r = sm_ll_insert(&smd->ll, b, count, &nr_allocations);
-	if (!r) {
+	if (!r)
 		smd->nr_allocated_this_transaction += nr_allocations;
-	}
 
 	return r;
 }
@@ -138,22 +137,20 @@ static int sm_disk_new_block(struct dm_space_map *sm, dm_block_t *b)
 	 * Any block we allocate has to be free in both the old and current ll.
 	 */
 	r = sm_ll_find_common_free_block(&smd->old_ll, &smd->ll, smd->begin, smd->ll.nr_blocks, b);
-	if (r == -ENOSPC) {
+	if (r == -ENOSPC)
 		/*
 		 * There's no free block between smd->begin and the end of the metadata device.
 		 * We search before smd->begin in case something has been freed.
 		 */
 		r = sm_ll_find_common_free_block(&smd->old_ll, &smd->ll, 0, smd->begin, b);
-	}
 
 	if (r)
 		return r;
 
 	smd->begin = *b + 1;
 	r = sm_ll_inc(&smd->ll, *b, *b + 1, &nr_allocations);
-	if (!r) {
+	if (!r)
 		smd->nr_allocated_this_transaction += nr_allocations;
-	}
 
 	return r;
 }