From: Sage Weil <sage@newdream.net>
Date: Thu, 1 Oct 2009 18:21:54 +0000 (-0700)
Subject: kclient: use smp_mb in place of spinlock for testing flag bit
X-Git-Tag: v0.16~32
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=4ea86ba125b91f7f270b020686f1f709d2c1e2f3;p=ceph.git

kclient: use smp_mb in place of spinlock for testing flag bit
---

diff --git a/src/kernel/super.h b/src/kernel/super.h
index b88551cc91190..cfd39ef4023e8 100644
--- a/src/kernel/super.h
+++ b/src/kernel/super.h
@@ -390,9 +390,8 @@ static inline bool ceph_i_test(struct inode *inode, unsigned mask)
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	bool r;
 
-	spin_lock(&inode->i_lock);
+	smp_mb();
 	r = (ci->i_ceph_flags & mask) == mask;
-	spin_unlock(&inode->i_lock);
 	return r;
 }