1 files changed, 89 insertions, 0 deletions
diff --git a/fs/gfs2/lops.h b/fs/gfs2/lops.h
new file mode 100644
index 0000000000..1412ffba1d
--- /dev/null
+++ b/fs/gfs2/lops.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
+ */
+
+#ifndef __LOPS_DOT_H__
+#define __LOPS_DOT_H__
+
+#include <linux/list.h>
+#include "incore.h"
+
+extern const struct gfs2_log_operations *gfs2_log_ops[];
+extern void gfs2_log_incr_head(struct gfs2_sbd *sdp);
+extern u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn);
+extern void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
+			   struct page *page, unsigned size, unsigned offset,
+			   u64 blkno);
+extern void gfs2_log_submit_bio(struct bio **biop, blk_opf_t opf);
+extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
+extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
+			   struct gfs2_log_header_host *head, bool keep_cache);
+extern void gfs2_drain_revokes(struct gfs2_sbd *sdp);
+static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
+{
+	return sdp->sd_ldptrs;
+}
+
+static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
+{
+	return sdp->sd_ldptrs / 2;
+}
+
+static inline void lops_before_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_before_commit)
+			gfs2_log_ops[x]->lo_before_commit(sdp, tr);
+}
+
+static inline void lops_after_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_after_commit)
+			gfs2_log_ops[x]->lo_after_commit(sdp, tr);
+}
+
+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, u32 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__ */
+