From d4afcba95fca4dd0f831fe72c1fa4f0638f23765 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20P=C3=A4rtel?= <martin.partel@gmail.com>
Date: Thu, 2 Aug 2012 00:44:22 +0200
Subject: um: fix ubd_file_size for read-only files
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Made ubd_file_size not request write access. Fixes use of read-only images.

Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 20505ca..0643e5b 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -514,7 +514,7 @@ static inline int ubd_file_size(struct ubd *ubd_dev, __u64 *size_out)
 		goto out;
 	}
 
-	fd = os_open_file(ubd_dev->file, global_openflags, 0);
+	fd = os_open_file(ubd_dev->file, of_read(OPENFLAGS()), 0);
 	if (fd < 0)
 		return fd;
 
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