commit 1d3382cbf02986e4833849f528d451367ea0b4cb
author Al Viro <viro@zeniv.linux.org.uk> Sat Oct 23 15:19:20 2010 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Mon Oct 25 21:24:15 2010 -0400
tree b754f9903c0f77ce40dcff18030b49d0ce213eab
parent a8dade34e3df581bc36ca2afe6e27055e178801c

new helper: inode_unhashed()

note: for race-free uses you inode_lock held

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/inode.c

diff --git a/fs/inode.c b/fs/inode.c
index db7c74c..4440cf1 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1094,7 +1094,7 @@
 		__iget(old);
 		spin_unlock(&inode_lock);
 		wait_on_inode(old);
-		if (unlikely(!hlist_unhashed(&old->i_hash))) {
+		if (unlikely(!inode_unhashed(old))) {
 			iput(old);
 			return -EBUSY;
 		}
@@ -1133,7 +1133,7 @@
 		__iget(old);
 		spin_unlock(&inode_lock);
 		wait_on_inode(old);
-		if (unlikely(!hlist_unhashed(&old->i_hash))) {
+		if (unlikely(!inode_unhashed(old))) {
 			iput(old);
 			return -EBUSY;
 		}
@@ -1186,7 +1186,7 @@
  */
 int generic_drop_inode(struct inode *inode)
 {
-	return !inode->i_nlink || hlist_unhashed(&inode->i_hash);
+	return !inode->i_nlink || inode_unhashed(inode);
 }
 EXPORT_SYMBOL_GPL(generic_drop_inode);