[GFS2] The core of GFS2

This patch contains all the core files for GFS2.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 96 insertions, 0 deletions

diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h
new file mode 100644
index 000000000000..417f5aade4b1
--- /dev/null
+++ b/fs/gfs2/lops.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2005 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 v.2.
+ */
+
+#ifndef __LOPS_DOT_H__
+#define __LOPS_DOT_H__
+
+extern struct gfs2_log_operations gfs2_glock_lops;
+extern struct gfs2_log_operations gfs2_buf_lops;
+extern struct gfs2_log_operations gfs2_revoke_lops;
+extern struct gfs2_log_operations gfs2_rg_lops;
+extern struct gfs2_log_operations gfs2_databuf_lops;
+
+extern struct gfs2_log_operations *gfs2_log_ops[];
+
+static inline void lops_init_le(struct gfs2_log_element *le,
+                                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 *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__ */
+