From e536030934aebf049fe6aaebc58dd37aeee21840 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Thu, 19 May 2016 19:15:19 +0800
Subject: ceph: fix wake_up_session_cb()

We should reset i_requested_max_size before waking the waiters.
(zero i_requested_max_size make waiter re-request the max size)

Signed-off-by: Yan, Zheng <zyan@redhat.com>

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 7ad3128..2103b82 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1258,13 +1258,13 @@ static int wake_up_session_cb(struct inode *inode, struct ceph_cap *cap,
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
 
-	wake_up_all(&ci->i_cap_wq);
 	if (arg) {
 		spin_lock(&ci->i_ceph_lock);
 		ci->i_wanted_max_size = 0;
 		ci->i_requested_max_size = 0;
 		spin_unlock(&ci->i_ceph_lock);
 	}
+	wake_up_all(&ci->i_cap_wq);
 	return 0;
 }
 
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