diff options
| -rw-r--r-- | block/genhd.c | 2 | ||||
| -rw-r--r-- | fs/block_dev.c | 15 | ||||
| -rw-r--r-- | include/linux/fs.h | 1 |
3 files changed, 18 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c index fcd6d4fae657..f2f22d0e8e14 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -648,6 +648,8 @@ void del_gendisk(struct gendisk *disk) disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY | DISK_PITER_REVERSE); while ((part = disk_part_iter_next(&piter))) { + bdev_unhash_inode(MKDEV(disk->major, + disk->first_minor + part->partno)); invalidate_partition(disk, part->partno); delete_partition(disk, part->partno); } diff --git a/fs/block_dev.c b/fs/block_dev.c index 5db5d1340d69..ed6a34be7a1e 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -954,6 +954,21 @@ static int bdev_set(struct inode *inode, void *data) static LIST_HEAD(all_bdevs); +/* + * If there is a bdev inode for this device, unhash it so that it gets evicted + * as soon as last inode reference is dropped. + */ +void bdev_unhash_inode(dev_t dev) +{ + struct inode *inode; + + inode = ilookup5(blockdev_superblock, hash(dev), bdev_test, &dev); + if (inode) { + remove_inode_hash(inode); + iput(inode); + } +} + struct block_device *bdget(dev_t dev) { struct block_device *bdev; diff --git a/include/linux/fs.h b/include/linux/fs.h index 2ba074328894..702cb6c50194 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2342,6 +2342,7 @@ extern struct kmem_cache *names_cachep; #ifdef CONFIG_BLOCK extern int register_blkdev(unsigned int, const char *); extern void unregister_blkdev(unsigned int, const char *); +extern void bdev_unhash_inode(dev_t dev); extern struct block_device *bdget(dev_t); extern struct block_device *bdgrab(struct block_device *bdev); extern void bd_set_size(struct block_device *, loff_t size); |