From 68a582901d42eebf9fb3528fd7fb0a8cfc641776 Mon Sep 17 00:00:00 2001
From: Alasdair Kergon <agk@redhat.com>
Date: Sun, 12 Dec 2004 21:47:14 +0000
Subject: [PATCH] Reopen RO file descriptor RW if necessary.

---
 lib/device/dev-io.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/lib/device/dev-io.c b/lib/device/dev-io.c
index ba68e0974..f6ce6f62b 100644
--- a/lib/device/dev-io.c
+++ b/lib/device/dev-io.c
@@ -294,12 +294,17 @@ int dev_open_flags(struct device *dev, int flags, int direct, int quiet)
 	const char *name;
 
 	if (dev->fd >= 0) {
-		if (!(dev->flags & DEV_OPENED_RW) &&
-		    ((flags & O_ACCMODE) == O_RDWR))
+		if ((dev->flags & DEV_OPENED_RW) ||
+		    ((flags & O_ACCMODE) != O_RDWR)) {
+			dev->open_count++;
+			return 1;
+		}
+
+		if (dev->open_count)
 			log_debug("WARNING: %s already opened read-only",
 				  dev_name(dev));
-		dev->open_count++;
-		return 1;
+		else
+			dev_close_immediate(dev);
 	}
 
 	if (memlock())