Adding the minor to the major creates tons of pointless conflicts. Just
use the dev_t itself, which is 32-bits and thus is guaranteed to fit
into ino_t.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/block_dev.c | 25 +------------------------
1 file changed, 1 insertion(+), 24 deletions(-)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 6b9d19ffa5af7b..da7d4868057632 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -870,35 +870,12 @@ void __init bdev_cache_init(void)
blockdev_superblock = bd_mnt->mnt_sb; /* For writeback */
}
-/*
- * Most likely _very_ bad one - but then it's hardly critical for small
- * /dev and can be fixed when somebody will need really large one.
- * Keep in mind that it will be fed through icache hash function too.
- */
-static inline unsigned long hash(dev_t dev)
-{
- return MAJOR(dev)+MINOR(dev);
-}
-
-static int bdev_test(struct inode *inode, void *data)
-{
- return BDEV_I(inode)->bdev.bd_dev == *(dev_t *)data;
-}
-
-static int bdev_set(struct inode *inode, void *data)
-{
- BDEV_I(inode)->bdev.bd_dev = *(dev_t *)data;
- return 0;
-}
-
struct block_device *bdget(dev_t dev)
{
struct block_device *bdev;
struct inode *inode;
- inode = iget5_locked(blockdev_superblock, hash(dev),
- bdev_test, bdev_set, &dev);
-
+ inode = iget_locked(blockdev_superblock, dev);
if (!inode)
return NULL;
--
2.28.0
