nfsd: use fsnotify_data_inode() to get the unlinked inode

The inode argument to handle_event() is about to become obsolete.

Link: https://lore.kernel.org/r/20200708111156.24659-4-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/nfsd/filecache.c

@@ -599,11 +599,13 @@ static struct notifier_block nfsd_file_lease_notifier = {
 
 static int
 nfsd_file_fsnotify_handle_event(struct fsnotify_group *group,
-				struct inode *inode,
+				struct inode *to_tell,
 				u32 mask, const void *data, int data_type,
 				const struct qstr *file_name, u32 cookie,
 				struct fsnotify_iter_info *iter_info)
 {
+	struct inode *inode = fsnotify_data_inode(data, data_type);
+
 	trace_nfsd_file_fsnotify_handle_event(inode, mask);
 
 	/* Should be no marks on non-regular files */