From 2a264e2b0bbb533d11a94ec39c4ea4e9f3de8c9d Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Fri, 22 Mar 2013 15:04:51 -0700
Subject: [PATCH] --- yaml --- r: 361676 b: refs/heads/master c:
 38d78e587d4960d0db94add518d27ee74bad2301 h: refs/heads/master v: v3

---
 [refs]             | 2 +-
 trunk/ipc/mqueue.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index acc60ca3bceb..7f5a572479b4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ca4b3f302c90de5e516296e581c31c80125cd24b
+refs/heads/master: 38d78e587d4960d0db94add518d27ee74bad2301
diff --git a/trunk/ipc/mqueue.c b/trunk/ipc/mqueue.c
index e5c4f609f22c..3953fda2e8bd 100644
--- a/trunk/ipc/mqueue.c
+++ b/trunk/ipc/mqueue.c
@@ -840,7 +840,8 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, umode_t, mode,
 		fd = error;
 	}
 	mutex_unlock(&root->d_inode->i_mutex);
-	mnt_drop_write(mnt);
+	if (!ro)
+		mnt_drop_write(mnt);
 out_putname:
 	putname(name);
 	return fd;