From d0f88f8d5da674445f23ace60bb1896f4a3a3783 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 31 Mar 2015 12:30:48 -0400
Subject: [PATCH] acct: check FMODE_CAN_WRITE

it's not calling ->write() directly anymore.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 kernel/acct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/acct.c b/kernel/acct.c
index e6c10d1a4058..74963d192c5d 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -213,7 +213,7 @@ static int acct_on(struct filename *pathname)
 		return -EACCES;
 	}
 
-	if (!file->f_op->write) {
+	if (!(file->f_mode & FMODE_CAN_WRITE)) {
 		kfree(acct);
 		filp_close(file, NULL);
 		return -EIO;
-- 
2.30.2