kernfs: use idr instead of ida to manage inode number
kernfs uses ida to manage inode number. The problem is we can't get
kernfs_node from inode number with ida. Switching to use idr, next patch
will add an API to get kernfs_node from inode number.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index a9b11b8..5f5d602 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -163,7 +163,7 @@ struct kernfs_root {
unsigned int flags; /* KERNFS_ROOT_* flags */
/* private fields, do not use outside kernfs proper */
- struct ida ino_ida;
+ struct idr ino_idr;
struct kernfs_syscall_ops *syscall_ops;
/* list of kernfs_super_info of this root, protected by kernfs_mutex */