[PATCH 0/3] dm vdo: fix various formatting nits

[PATCH 0/3] dm vdo: fix various formatting nits

[Matthew Sakai]

Mike Snitzer (3):
  dm vdo slab-depot: fix various small nits
  dm vdo dedupe: fix various small nits
  dm vdo index: fix various small nits

 drivers/md/dm-vdo/dedupe.c         |  9 ++++-----
 drivers/md/dm-vdo/index-layout.c   | 10 +++++-----
 drivers/md/dm-vdo/index-page-map.c |  3 +--
 drivers/md/dm-vdo/index-session.c  | 12 ++++++++----
 drivers/md/dm-vdo/index.c          |  3 +--
 drivers/md/dm-vdo/slab-depot.c     | 19 +++++++++----------
 6 files changed, 28 insertions(+), 28 deletions(-)

-- 
2.42.0

[PATCH 1/3] dm vdo slab-depot: fix various small nits

[Matthew Sakai]

From: Mike Snitzer <snitzer@kernel.org>

Comment typo, whitespace issues, mark function inline.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Chung Chung <cchung@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
---
 drivers/md/dm-vdo/slab-depot.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/md/dm-vdo/slab-depot.c b/drivers/md/dm-vdo/slab-depot.c
index 56d975c98752..42126bd60242 100644
--- a/drivers/md/dm-vdo/slab-depot.c
+++ b/drivers/md/dm-vdo/slab-depot.c
@@ -1360,7 +1360,7 @@ static unsigned int calculate_slab_priority(struct vdo_slab *slab)
 
 /*
  * Slabs are essentially prioritized by an approximation of the number of free blocks in the slab
- * so slabs with lots of free blocks with be opened for allocation before slabs that have few free
+ * so slabs with lots of free blocks will be opened for allocation before slabs that have few free
  * blocks.
  */
 static void prioritize_slab(struct vdo_slab *slab)
@@ -1374,14 +1374,14 @@ static void prioritize_slab(struct vdo_slab *slab)
 
 /**
  * adjust_free_block_count() - Adjust the free block count and (if needed) reprioritize the slab.
- * @increment: should be true if the free block count went up.
+ * @incremented: true if the free block count went up.
  */
-static void adjust_free_block_count(struct vdo_slab *slab, bool increment)
+static void adjust_free_block_count(struct vdo_slab *slab, bool incremented)
 {
 	struct block_allocator *allocator = slab->allocator;
 
 	WRITE_ONCE(allocator->allocated_blocks,
-		   allocator->allocated_blocks + (increment ? -1 : 1));
+		   allocator->allocated_blocks + (incremented ? -1 : 1));
 
 	/* The open slab doesn't need to be reprioritized until it is closed. */
 	if (slab == allocator->open_slab)
@@ -1747,9 +1747,8 @@ static void add_entry_from_waiter(struct vdo_waiter *waiter, void *context)
 static inline bool is_next_entry_a_block_map_increment(struct slab_journal *journal)
 {
 	struct vdo_waiter *waiter = vdo_waitq_get_first_waiter(&journal->entry_waiters);
-	struct reference_updater *updater = container_of(waiter,
-							 struct reference_updater,
-							 waiter);
+	struct reference_updater *updater =
+		container_of(waiter, struct reference_updater, waiter);
 
 	return (updater->operation == VDO_JOURNAL_BLOCK_MAP_REMAPPING);
 }
@@ -2642,7 +2641,7 @@ static struct vdo_slab *get_next_slab(struct slab_scrubber *scrubber)
  *
  * Return: true if the scrubber has slabs to scrub.
  */
-static bool __must_check has_slabs_to_scrub(struct slab_scrubber *scrubber)
+static inline bool __must_check has_slabs_to_scrub(struct slab_scrubber *scrubber)
 {
 	return (get_next_slab(scrubber) != NULL);
 }
@@ -2817,8 +2816,8 @@ static int apply_block_entries(struct packed_slab_journal_block *block,
 static void apply_journal_entries(struct vdo_completion *completion)
 {
 	int result;
-	struct slab_scrubber *scrubber
-		= container_of(as_vio(completion), struct slab_scrubber, vio);
+	struct slab_scrubber *scrubber =
+		container_of(as_vio(completion), struct slab_scrubber, vio);
 	struct vdo_slab *slab = scrubber->slab;
 	struct slab_journal *journal = &slab->journal;
 
-- 
2.42.0

[PATCH 2/3] dm vdo dedupe: fix various small nits

[Matthew Sakai]

From: Mike Snitzer <snitzer@kernel.org>

Remove extra blank line, mark function inline, add missing
braces, and fix a typo in a comment.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Chung Chung <cchung@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
---
 drivers/md/dm-vdo/dedupe.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm-vdo/dedupe.c b/drivers/md/dm-vdo/dedupe.c
index b3ffb85518c3..8533f1669a01 100644
--- a/drivers/md/dm-vdo/dedupe.c
+++ b/drivers/md/dm-vdo/dedupe.c
@@ -1061,7 +1061,7 @@ static void start_deduping(struct hash_lock *lock, struct data_vio *agent,
  * increment_stat() - Increment a statistic counter in a non-atomic yet thread-safe manner.
  * @stat: The statistic field to increment.
  */
-static void increment_stat(u64 *stat)
+static inline void increment_stat(u64 *stat)
 {
 	/*
 	 * Must only be mutated on the hash zone thread. Prevents any compiler shenanigans from
@@ -1130,7 +1130,6 @@ static bool blocks_equal(char *block1, char *block2)
 {
 	int i;
 
-
 	for (i = 0; i < VDO_BLOCK_SIZE; i += sizeof(u64)) {
 		if (*((u64 *) &block1[i]) != *((u64 *) &block2[i]))
 			return false;
@@ -1456,13 +1455,13 @@ static void finish_writing(struct hash_lock *lock, struct data_vio *agent)
 	lock->duplicate = agent->new_mapped;
 	lock->verified = true;
 
-	if (vdo_is_state_compressed(lock->duplicate.state) &&
-	    lock->registered)
+	if (vdo_is_state_compressed(lock->duplicate.state) && lock->registered) {
 		/*
 		 * Compression means the location we gave in the UDS query is not the location
 		 * we're using to deduplicate.
 		 */
 		lock->update_advice = true;
+	}
 
 	/* If there are any waiters, we need to start deduping them. */
 	if (vdo_waitq_has_waiters(&lock->waiters)) {
@@ -2366,7 +2365,7 @@ static void timeout_index_operations_callback(struct vdo_completion *completion)
 					  DEDUPE_CONTEXT_TIMED_OUT)) {
 			/*
 			 * This context completed between the time the timeout fired, and now. We
-			 * can treat it as a a successful query, its requestor is already enqueued
+			 * can treat it as a successful query, its requestor is already enqueued
 			 * to process it.
 			 */
 			continue;
-- 
2.42.0

[PATCH 3/3] dm vdo index: fix various small nits

[Matthew Sakai]

From: Mike Snitzer <snitzer@kernel.org>

Add braces around multi-line while loops and if statements. Also
remove excess newlines.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Chung Chung <cchung@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
---
 drivers/md/dm-vdo/index-layout.c   | 10 +++++-----
 drivers/md/dm-vdo/index-page-map.c |  3 +--
 drivers/md/dm-vdo/index-session.c  | 12 ++++++++----
 drivers/md/dm-vdo/index.c          |  3 +--
 4 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/md/dm-vdo/index-layout.c b/drivers/md/dm-vdo/index-layout.c
index 6446a1f58641..f0511988ea07 100644
--- a/drivers/md/dm-vdo/index-layout.c
+++ b/drivers/md/dm-vdo/index-layout.c
@@ -386,9 +386,10 @@ static void define_sub_index_nonce(struct index_layout *layout)
 	encode_u64_le(buffer, &offset, sil->sub_index.start_block);
 	encode_u16_le(buffer, &offset, 0);
 	sil->nonce = generate_secondary_nonce(primary_nonce, buffer, sizeof(buffer));
-	if (sil->nonce == 0)
+	if (sil->nonce == 0) {
 		sil->nonce = generate_secondary_nonce(~primary_nonce + 1, buffer,
 						      sizeof(buffer));
+	}
 }
 
 static void setup_sub_index(struct index_layout *layout, u64 start_block,
@@ -651,10 +652,11 @@ static int discard_index_state_data(struct index_layout *layout)
 			saved_result = result;
 	}
 
-	if (saved_result != UDS_SUCCESS)
+	if (saved_result != UDS_SUCCESS) {
 		return uds_log_error_strerror(result,
 					      "%s: cannot destroy all index saves",
 					      __func__);
+	}
 
 	return UDS_SUCCESS;
 }
@@ -1242,9 +1244,7 @@ static int __must_check read_super_block_data(struct buffered_reader *reader,
 					      "unknown superblock magic label");
 
 	if ((super->version < SUPER_VERSION_MINIMUM) ||
-	    (super->version == 4) ||
-	    (super->version == 5) ||
-	    (super->version == 6) ||
+	    (super->version == 4) || (super->version == 5) || (super->version == 6) ||
 	    (super->version > SUPER_VERSION_MAXIMUM)) {
 		return uds_log_error_strerror(UDS_UNSUPPORTED_VERSION,
 					      "unknown superblock version number %u",
diff --git a/drivers/md/dm-vdo/index-page-map.c b/drivers/md/dm-vdo/index-page-map.c
index 190d12848ba2..acfff74f37bc 100644
--- a/drivers/md/dm-vdo/index-page-map.c
+++ b/drivers/md/dm-vdo/index-page-map.c
@@ -100,8 +100,7 @@ void uds_get_list_number_bounds(const struct index_page_map *map, u32 chapter_nu
 	u32 slot = chapter_number * map->entries_per_chapter;
 
 	*lowest_list = ((index_page_number == 0) ?
-			0 :
-			map->entries[slot + index_page_number - 1] + 1);
+			0 : map->entries[slot + index_page_number - 1] + 1);
 	*highest_list = ((index_page_number < map->entries_per_chapter) ?
 			 map->entries[slot + index_page_number] :
 			 map->geometry->delta_lists_per_chapter - 1);
diff --git a/drivers/md/dm-vdo/index-session.c b/drivers/md/dm-vdo/index-session.c
index 73c2927f74ce..c261453b9871 100644
--- a/drivers/md/dm-vdo/index-session.c
+++ b/drivers/md/dm-vdo/index-session.c
@@ -392,9 +392,10 @@ int uds_open_index(enum uds_open_index_type open_type,
 static void wait_for_no_requests_in_progress(struct uds_index_session *index_session)
 {
 	uds_lock_mutex(&index_session->request_mutex);
-	while (index_session->request_count > 0)
+	while (index_session->request_count > 0) {
 		uds_wait_cond(&index_session->request_cond,
 			      &index_session->request_mutex);
+	}
 	uds_unlock_mutex(&index_session->request_mutex);
 }
 
@@ -619,9 +620,10 @@ int uds_close_index(struct uds_index_session *index_session)
 	/* Wait for any current index state change to complete. */
 	uds_lock_mutex(&index_session->request_mutex);
 	while ((index_session->state & IS_FLAG_WAITING) ||
-	       (index_session->state & IS_FLAG_CLOSING))
+	       (index_session->state & IS_FLAG_CLOSING)) {
 		uds_wait_cond(&index_session->request_cond,
 			      &index_session->request_mutex);
+	}
 
 	if (index_session->state & IS_FLAG_SUSPENDED) {
 		uds_log_info("Index session is suspended");
@@ -660,9 +662,10 @@ int uds_destroy_index_session(struct uds_index_session *index_session)
 	/* Wait for any current index state change to complete. */
 	uds_lock_mutex(&index_session->request_mutex);
 	while ((index_session->state & IS_FLAG_WAITING) ||
-	       (index_session->state & IS_FLAG_CLOSING))
+	       (index_session->state & IS_FLAG_CLOSING)) {
 		uds_wait_cond(&index_session->request_cond,
 			      &index_session->request_mutex);
+	}
 
 	if (index_session->state & IS_FLAG_DESTROYING) {
 		uds_unlock_mutex(&index_session->request_mutex);
@@ -686,9 +689,10 @@ int uds_destroy_index_session(struct uds_index_session *index_session)
 
 		/* Wait until the load exits before proceeding. */
 		uds_lock_mutex(&index_session->request_mutex);
-		while (index_session->state & IS_FLAG_LOADING)
+		while (index_session->state & IS_FLAG_LOADING) {
 			uds_wait_cond(&index_session->request_cond,
 				      &index_session->request_mutex);
+		}
 		uds_unlock_mutex(&index_session->request_mutex);
 	}
 
diff --git a/drivers/md/dm-vdo/index.c b/drivers/md/dm-vdo/index.c
index 28ae54efaced..3d2a673b3f52 100644
--- a/drivers/md/dm-vdo/index.c
+++ b/drivers/md/dm-vdo/index.c
@@ -1330,8 +1330,7 @@ int uds_save_index(struct uds_index *index)
 	uds_wait_for_idle_index(index);
 	index->prev_save = index->last_save;
 	index->last_save = ((index->newest_virtual_chapter == 0) ?
-			    NO_LAST_SAVE :
-			    index->newest_virtual_chapter - 1);
+			    NO_LAST_SAVE : index->newest_virtual_chapter - 1);
 	uds_log_info("beginning save (vcn %llu)", (unsigned long long) index->last_save);
 
 	result = uds_save_index_state(index->layout, index);
-- 
2.42.0