diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index d2003cd..a932b9a 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -624,7 +624,7 @@
 		return 1;
 
 	/* Hm, nope.  Are (enough) root reserved blocks available? */
-	if (sbi->s_resuid == current->fsuid ||
+	if (sbi->s_resuid == current_fsuid() ||
 	    ((sbi->s_resgid != 0) && in_group_p(sbi->s_resgid)) ||
 	    capable(CAP_SYS_RESOURCE)) {
 		if (free_blocks >= (nblocks + dirty_blocks))