Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / gfs2 / log.h

diff --git a/kernel/fs/gfs2/log.h b/kernel/fs/gfs2/log.h
new file mode 100644 (file)
index 0000000..9499a60
--- /dev/null
+++ b/kernel/fs/gfs2/log.h
@@ -0,0 +1,85 @@
+/*
+ * 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 __LOG_DOT_H__
+#define __LOG_DOT_H__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/writeback.h>
+#include "incore.h"
+
+/**
+ * gfs2_log_lock - acquire the right to mess with the log manager
+ * @sdp: the filesystem
+ *
+ */
+
+static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
+__acquires(&sdp->sd_log_lock)
+{
+       spin_lock(&sdp->sd_log_lock);
+}
+
+/**
+ * gfs2_log_unlock - release the right to mess with the log manager
+ * @sdp: the filesystem
+ *
+ */
+
+static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
+__releases(&sdp->sd_log_lock)
+{
+       spin_unlock(&sdp->sd_log_lock);
+}
+
+static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
+                                         unsigned int value)
+{
+       if (++value == sdp->sd_jdesc->jd_blocks) {
+               value = 0;
+       }
+       sdp->sd_log_head = sdp->sd_log_tail = value;
+}
+
+static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
+{
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+
+       if (!test_bit(GIF_ORDERED, &ip->i_flags)) {
+               spin_lock(&sdp->sd_ordered_lock);
+               if (!test_and_set_bit(GIF_ORDERED, &ip->i_flags))
+                       list_add(&ip->i_ordered, &sdp->sd_log_le_ordered);
+               spin_unlock(&sdp->sd_ordered_lock);
+       }
+}
+extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
+extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
+                           unsigned int ssize);
+
+extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
+extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
+enum gfs2_flush_type {
+       NORMAL_FLUSH = 0,
+       SYNC_FLUSH,
+       SHUTDOWN_FLUSH,
+       FREEZE_FLUSH
+};
+extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
+                          enum gfs2_flush_type type);
+extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
+extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
+extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
+
+extern void gfs2_log_shutdown(struct gfs2_sbd *sdp);
+extern int gfs2_logd(void *data);
+extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
+extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
+
+#endif /* __LOG_DOT_H__ */