md: improve return types of badblocks handling functions

rdev_set_badblocks() only indicates success/failure, so convert its return
type from int to boolean for better semantic clarity.

rdev_clear_badblocks() return value is never used by any caller, convert it
to void. This removes unnecessary value returns.

Also update narrow_write_error() in both raid1 and raid10 to use boolean
return type to match rdev_set_badblocks().

Signed-off-by: Zheng Qixing <zhengqixing@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20250227075507.151331-12-zhengqixing@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

4 files changed, 19 insertions, 20 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 95ceb6052360..4092fb94842d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -9828,9 +9828,9 @@ EXPORT_SYMBOL(md_finish_reshape);
 
 /* Bad block management */
 
-/* Returns 1 on success, 0 on failure */
-int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
-		       int is_new)
+/* Returns true on success, false on failure */
+bool rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
+			int is_new)
 {
 	struct mddev *mddev = rdev->mddev;
 
@@ -9842,7 +9842,7 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 	 * avoid it.
 	 */
 	if (test_bit(Faulty, &rdev->flags))
-		return 1;
+		return true;
 
 	if (is_new)
 		s += rdev->new_data_offset;
@@ -9850,7 +9850,7 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 		s += rdev->data_offset;
 
 	if (!badblocks_set(&rdev->badblocks, s, sectors, 0))
-		return 0;
+		return false;
 
 	/* Make sure they get written out promptly */
 	if (test_bit(ExternalBbl, &rdev->flags))
@@ -9859,12 +9859,12 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 	set_mask_bits(&mddev->sb_flags, 0,
 		      BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
 	md_wakeup_thread(rdev->mddev->thread);
-	return 1;
+	return true;
 }
 EXPORT_SYMBOL_GPL(rdev_set_badblocks);
 
-int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
-			 int is_new)
+void rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
+			  int is_new)
 {
 	if (is_new)
 		s += rdev->new_data_offset;
@@ -9872,11 +9872,10 @@ int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 		s += rdev->data_offset;
 
 	if (!badblocks_clear(&rdev->badblocks, s, sectors))
-		return 0;
+		return;
 
 	if (test_bit(ExternalBbl, &rdev->flags))
 		sysfs_notify_dirent_safe(rdev->sysfs_badblocks);
-	return 1;
 }
 EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
 
diff --git a/drivers/md/md.h b/drivers/md/md.h
index def808064ad8..923a0ef51efe 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -289,10 +289,10 @@ static inline int rdev_has_badblock(struct md_rdev *rdev, sector_t s,
 	return is_badblock(rdev, s, sectors, &first_bad, &bad_sectors);
 }
 
-extern int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
-			      int is_new);
-extern int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
-				int is_new);
+extern bool rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
+			       int is_new);
+extern void rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
+				 int is_new);
 struct md_cluster_info;
 
 /**
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 9d57a88dbd26..8beb8cccc6af 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2486,7 +2486,7 @@ static void fix_read_error(struct r1conf *conf, struct r1bio *r1_bio)
 	}
 }
 
-static int narrow_write_error(struct r1bio *r1_bio, int i)
+static bool narrow_write_error(struct r1bio *r1_bio, int i)
 {
 	struct mddev *mddev = r1_bio->mddev;
 	struct r1conf *conf = mddev->private;
@@ -2507,10 +2507,10 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
 	sector_t sector;
 	int sectors;
 	int sect_to_write = r1_bio->sectors;
-	int ok = 1;
+	bool ok = true;
 
 	if (rdev->badblocks.shift < 0)
-		return 0;
+		return false;
 
 	block_sectors = roundup(1 << rdev->badblocks.shift,
 				bdev_logical_block_size(rdev->bdev) >> 9);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index efe93b979167..7ed933181712 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2786,7 +2786,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 	}
 }
 
-static int narrow_write_error(struct r10bio *r10_bio, int i)
+static bool narrow_write_error(struct r10bio *r10_bio, int i)
 {
 	struct bio *bio = r10_bio->master_bio;
 	struct mddev *mddev = r10_bio->mddev;
@@ -2807,10 +2807,10 @@ static int narrow_write_error(struct r10bio *r10_bio, int i)
 	sector_t sector;
 	int sectors;
 	int sect_to_write = r10_bio->sectors;
-	int ok = 1;
+	bool ok = true;
 
 	if (rdev->badblocks.shift < 0)
-		return 0;
+		return false;
 
 	block_sectors = roundup(1 << rdev->badblocks.shift,
 				bdev_logical_block_size(rdev->bdev) >> 9);