[PATCH 6/8] block: remove disk_update_readahead

[Christoph Hellwig <hch@xxxxxx>]

Mark blk_apply_bdi_limits non-static and open code disk_update_readahead
in the only caller.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
---
 block/blk-settings.c   | 8 +-------
 block/blk.h            | 2 ++
 block/genhd.c          | 2 +-
 include/linux/blkdev.h | 1 -
 4 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/block/blk-settings.c b/block/blk-settings.c
index c2221b7406d46a..c692e80bb4f890 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -55,7 +55,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
-static void blk_apply_bdi_limits(struct backing_dev_info *bdi,
+void blk_apply_bdi_limits(struct backing_dev_info *bdi,
 		struct queue_limits *lim)
 {
 	/*
@@ -434,12 +434,6 @@ int queue_limits_set(struct request_queue *q, struct queue_limits *lim)
 }
 EXPORT_SYMBOL_GPL(queue_limits_set);
 
-void disk_update_readahead(struct gendisk *disk)
-{
-	blk_apply_bdi_limits(disk->bdi, &disk->queue->limits);
-}
-EXPORT_SYMBOL_GPL(disk_update_readahead);
-
 /**
  * blk_limits_io_min - set minimum request size for a device
  * @limits: the queue limits
diff --git a/block/blk.h b/block/blk.h
index d0a986d8ee507e..95e5a4f81693c4 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -358,6 +358,8 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio);
 enum elv_merge blk_try_merge(struct request *rq, struct bio *bio);
 
 int blk_set_default_limits(struct queue_limits *lim);
+void blk_apply_bdi_limits(struct backing_dev_info *bdi,
+		struct queue_limits *lim);
 int blk_dev_init(void);
 
 /*
diff --git a/block/genhd.c b/block/genhd.c
index 8f1f3c6b4d6729..4dc95a46350532 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -524,7 +524,7 @@ int __must_check device_add_disk(struct device *parent, struct gendisk *disk,
 		disk->part0->bd_dev = MKDEV(disk->major, disk->first_minor);
 	}
 
-	disk_update_readahead(disk);
+	blk_apply_bdi_limits(disk->bdi, &disk->queue->limits);
 	disk_add_events(disk);
 	set_bit(GD_ADDED, &disk->state);
 	return 0;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index b37826b350a2e3..6b88382012e958 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -973,7 +973,6 @@ static inline void blk_queue_disable_write_zeroes(struct request_queue *q)
 /*
  * Access functions for manipulating queue properties
  */
-void disk_update_readahead(struct gendisk *disk);
 extern void blk_limits_io_min(struct queue_limits *limits, unsigned int min);
 extern void blk_limits_io_opt(struct queue_limits *limits, unsigned int opt);
 extern void blk_set_queue_depth(struct request_queue *q, unsigned int depth);
-- 
2.43.0