Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / ocfs2 / dcache.h

diff --git a/kernel/fs/ocfs2/dcache.h b/kernel/fs/ocfs2/dcache.h
new file mode 100644 (file)
index 0000000..55f5889
--- /dev/null
+++ b/kernel/fs/ocfs2/dcache.h
@@ -0,0 +1,59 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * dcache.h
+ *
+ * Function prototypes
+ *
+ * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef OCFS2_DCACHE_H
+#define OCFS2_DCACHE_H
+
+extern const struct dentry_operations ocfs2_dentry_ops;
+
+struct ocfs2_dentry_lock {
+       unsigned int            dl_count;
+       u64                     dl_parent_blkno;
+
+       /*
+        * The ocfs2_dentry_lock keeps an inode reference until
+        * dl_lockres has been destroyed. This is usually done in
+        * ->d_iput() anyway, so there should be minimal impact.
+        */
+       struct inode            *dl_inode;
+       struct ocfs2_lock_res   dl_lockres;
+};
+
+int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode,
+                            u64 parent_blkno);
+
+void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
+                          struct ocfs2_dentry_lock *dl);
+
+struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno,
+                                     int skip_unhashed);
+
+void ocfs2_dentry_move(struct dentry *dentry, struct dentry *target,
+                      struct inode *old_dir, struct inode *new_dir);
+
+extern spinlock_t dentry_attach_lock;
+void ocfs2_dentry_attach_gen(struct dentry *dentry);
+
+#endif /* OCFS2_DCACHE_H */