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block: add a bdev_check_media_change helper

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Like check_disk_changed, except that it does not call ->revalidate_disk
but leaves that to the caller.

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 16:53:29 +02:00
committed by Jens Axboe
parent fc93fe1453
commit 95f6f3a46f
3 changed files with 32 additions and 16 deletions
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2
include/linux/genhd.h
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@@ -315,7 +315,6 @@ extern void disk_unblock_events(struct gendisk *disk);
extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
void set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
bool update_bdev);
extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
/* drivers/char/random.c */
extern void add_disk_randomness(struct gendisk *disk) __latent_entropy;
@@ -372,6 +371,7 @@ 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);