This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / fs / gfs2 / lops.h

diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h
new file mode 100644 (file)
index 0000000..965bc65
--- /dev/null
+++ b/fs/gfs2/lops.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License version 2.
+ */
+
+#ifndef __LOPS_DOT_H__
+#define __LOPS_DOT_H__
+
+#include <linux/list.h>
+#include "incore.h"
+
+extern const struct gfs2_log_operations gfs2_glock_lops;
+extern const struct gfs2_log_operations gfs2_buf_lops;
+extern const struct gfs2_log_operations gfs2_revoke_lops;
+extern const struct gfs2_log_operations gfs2_rg_lops;
+extern const struct gfs2_log_operations gfs2_databuf_lops;
+
+extern const struct gfs2_log_operations *gfs2_log_ops[];
+
+static inline void lops_init_le(struct gfs2_log_element *le,
+                               const struct gfs2_log_operations *lops)
+{
+       INIT_LIST_HEAD(&le->le_list);
+       le->le_ops = lops;
+}
+
+static inline void lops_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
+{
+       if (le->le_ops->lo_add)
+               le->le_ops->lo_add(sdp, le);
+}
+
+static inline void lops_incore_commit(struct gfs2_sbd *sdp,
+                                     struct gfs2_trans *tr)
+{
+       int x;
+       for (x = 0; gfs2_log_ops[x]; x++)
+               if (gfs2_log_ops[x]->lo_incore_commit)
+                       gfs2_log_ops[x]->lo_incore_commit(sdp, tr);
+}
+
+static inline void lops_before_commit(struct gfs2_sbd *sdp)
+{
+       int x;
+       for (x = 0; gfs2_log_ops[x]; x++)
+               if (gfs2_log_ops[x]->lo_before_commit)
+                       gfs2_log_ops[x]->lo_before_commit(sdp);
+}
+
+static inline void lops_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
+{
+       int x;
+       for (x = 0; gfs2_log_ops[x]; x++)
+               if (gfs2_log_ops[x]->lo_after_commit)
+                       gfs2_log_ops[x]->lo_after_commit(sdp, ai);
+}
+
+static inline void lops_before_scan(struct gfs2_jdesc *jd,
+                                   struct gfs2_log_header_host *head,
+                                   unsigned int pass)
+{
+       int x;
+       for (x = 0; gfs2_log_ops[x]; x++)
+               if (gfs2_log_ops[x]->lo_before_scan)
+                       gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
+}
+
+static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
+                                    struct gfs2_log_descriptor *ld,
+                                    __be64 *ptr,
+                                    unsigned int pass)
+{
+       int x, error;
+       for (x = 0; gfs2_log_ops[x]; x++)
+               if (gfs2_log_ops[x]->lo_scan_elements) {
+                       error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
+                                                                 ld, ptr, pass);
+                       if (error)
+                               return error;
+               }
+
+       return 0;
+}
+
+static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
+                                  unsigned int pass)
+{
+       int x;
+       for (x = 0; gfs2_log_ops[x]; x++)
+               if (gfs2_log_ops[x]->lo_before_scan)
+                       gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
+}
+
+#endif /* __LOPS_DOT_H__ */
+