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-rw-r--r--block/genhd.c2
-rw-r--r--fs/block_dev.c15
-rw-r--r--include/linux/fs.h1
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);