[dm-devel] [PATCH 8/8] block: remove support for delayed queue registrations
Christoph Hellwig
hch at lst.de
Sun Jul 25 05:54:58 UTC 2021
Now that device mapper has been changed to register the disk once
it is fully ready all this code is unused.
Signed-off-by: Christoph Hellwig <hch at lst.de>
---
block/elevator.c | 1 -
block/genhd.c | 29 +++++++----------------------
include/linux/genhd.h | 6 ------
3 files changed, 7 insertions(+), 29 deletions(-)
diff --git a/block/elevator.c b/block/elevator.c
index 52ada14cfe45..706d5a64508d 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -702,7 +702,6 @@ void elevator_init_mq(struct request_queue *q)
elevator_put(e);
}
}
-EXPORT_SYMBOL_GPL(elevator_init_mq); /* only for dm-rq */
/*
* switch to new_e io scheduler. be careful not to introduce deadlocks -
diff --git a/block/genhd.c b/block/genhd.c
index e3d93b868ec5..3cd9f165a5a7 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -457,20 +457,20 @@ static void register_disk(struct device *parent, struct gendisk *disk,
}
/**
- * __device_add_disk - add disk information to kernel list
+ * device_add_disk - add disk information to kernel list
* @parent: parent device for the disk
* @disk: per-device partitioning information
* @groups: Additional per-device sysfs groups
- * @register_queue: register the queue if set to true
*
* This function registers the partitioning information in @disk
* with the kernel.
*
* FIXME: error handling
*/
-static void __device_add_disk(struct device *parent, struct gendisk *disk,
- const struct attribute_group **groups,
- bool register_queue)
+
+void device_add_disk(struct device *parent, struct gendisk *disk,
+ const struct attribute_group **groups)
+
{
int ret;
@@ -480,8 +480,7 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk,
* elevator if one is needed, that is, for devices requesting queue
* registration.
*/
- if (register_queue)
- elevator_init_mq(disk->queue);
+ elevator_init_mq(disk->queue);
/*
* If the driver provides an explicit major number it also must provide
@@ -535,8 +534,7 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk,
bdev_add(disk->part0, dev->devt);
}
register_disk(parent, disk, groups);
- if (register_queue)
- blk_register_queue(disk);
+ blk_register_queue(disk);
/*
* Take an extra ref on queue which will be put on disk_release()
@@ -550,21 +548,8 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk,
disk_add_events(disk);
blk_integrity_add(disk);
}
-
-void device_add_disk(struct device *parent, struct gendisk *disk,
- const struct attribute_group **groups)
-
-{
- __device_add_disk(parent, disk, groups, true);
-}
EXPORT_SYMBOL(device_add_disk);
-void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk)
-{
- __device_add_disk(parent, disk, NULL, false);
-}
-EXPORT_SYMBOL(device_add_disk_no_queue_reg);
-
/**
* del_gendisk - remove the gendisk
* @disk: the struct gendisk to remove
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index dd95d53c75fa..fbc4bf269f63 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -218,12 +218,6 @@ static inline void add_disk(struct gendisk *disk)
{
device_add_disk(NULL, disk, NULL);
}
-extern void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk);
-static inline void add_disk_no_queue_reg(struct gendisk *disk)
-{
- device_add_disk_no_queue_reg(NULL, disk);
-}
-
extern void del_gendisk(struct gendisk *gp);
void set_disk_ro(struct gendisk *disk, bool read_only);
--
2.30.2
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