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block: remove check_disk_change

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Remove the now unused check_disk_change helper.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-09-08 16:53:47 +02:00 committed by Jens Axboe
parent 38a2b557e2
commit b92b53079a
2 changed files with 0 additions and 21 deletions
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20
fs/block_dev.c
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@ -1368,26 +1368,6 @@ void revalidate_disk_size(struct gendisk *disk, bool verbose)
}
EXPORT_SYMBOL(revalidate_disk_size);
/*
* This routine checks whether a removable media has been changed,
* and invalidates all buffer-cache-entries in that case. This
* is a relatively slow routine, so we have to try to minimize using
* it. Thus it is called only upon a 'mount' or 'open'. This
* is the best way of combining speed and utility, I think.
* People changing diskettes in the middle of an operation deserve
* to lose :-)
*/
int check_disk_change(struct block_device *bdev)
{
if (!bdev_check_media_change(bdev))
return 0;
if (bdev->bd_disk->fops->revalidate_disk)
bdev->bd_disk->fops->revalidate_disk(bdev->bd_disk);
return 1;
}
EXPORT_SYMBOL(check_disk_change);
void bd_set_nr_sectors(struct block_device *bdev, sector_t sectors)
{
spin_lock(&bdev->bd_size_lock);

1
include/linux/genhd.h
View file

@ -370,7 +370,6 @@ int register_blkdev(unsigned int major, const char *name);
void unregister_blkdev(unsigned int major, const char *name);
void revalidate_disk_size(struct gendisk *disk, bool verbose);
int check_disk_change(struct block_device *bdev);
bool bdev_check_media_change(struct block_device *bdev);
int __invalidate_device(struct block_device *bdev, bool kill_dirty);
void bd_set_nr_sectors(struct block_device *bdev, sector_t sectors);