block: remove disk_stack_limits

disk_stack_limits is unused now, remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed--by: Song Liu <song@kernel.org>
Tested-by: Song Liu <song@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240303140150.5435-12-hch@lst.de

diff --git a/block/blk-settings.c b/block/blk-settings.c
index 13865a9f89726c4ef7785430f9b88e05b17cce82..3c7d8d638ab59dc9704aa01217c9b940b5941e4b 100644 (file)
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -916,30 +916,6 @@ void queue_limits_stack_bdev(struct queue_limits *t, struct block_device *bdev,
 }
 EXPORT_SYMBOL_GPL(queue_limits_stack_bdev);
 
-/**
- * disk_stack_limits - adjust queue limits for stacked drivers
- * @disk:  MD/DM gendisk (top)
- * @bdev:  the underlying block device (bottom)
- * @offset:  offset to beginning of data within component device
- *
- * Description:
- *    Merges the limits for a top level gendisk and a bottom level
- *    block_device.
- */
-void disk_stack_limits(struct gendisk *disk, struct block_device *bdev,
-                      sector_t offset)
-{
-       struct request_queue *t = disk->queue;
-
-       if (blk_stack_limits(&t->limits, &bdev_get_queue(bdev)->limits,
-                       get_start_sect(bdev) + (offset >> 9)) < 0)
-               pr_notice("%s: Warning: Device %pg is misaligned\n",
-                       disk->disk_name, bdev);
-
-       disk_update_readahead(disk);
-}
-EXPORT_SYMBOL(disk_stack_limits);
-
 /**
  * blk_queue_update_dma_pad - update pad mask
  * @q:     the request queue for the device

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 285e82723d641ffcac6f47592586b5185d68b6eb..75c909865a8b7b30301660ff85a9c78217646714 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -926,8 +926,6 @@ extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                            sector_t offset);
 void queue_limits_stack_bdev(struct queue_limits *t, struct block_device *bdev,
                sector_t offset, const char *pfx);
-extern void disk_stack_limits(struct gendisk *disk, struct block_device *bdev,
-                             sector_t offset);
 extern void blk_queue_update_dma_pad(struct request_queue *, unsigned int);
 extern void blk_queue_segment_boundary(struct request_queue *, unsigned long);
 extern void blk_queue_virt_boundary(struct request_queue *, unsigned long);