2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License v.2.
14 * gfs2_log_lock - acquire the right to mess with the log manager
15 * @sdp: the filesystem
19 static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
21 spin_lock(&sdp->sd_log_lock);
25 * gfs2_log_unlock - release the right to mess with the log manager
26 * @sdp: the filesystem
30 static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
32 spin_unlock(&sdp->sd_log_lock);
35 static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
38 if (++value == sdp->sd_jdesc->jd_blocks) {
42 sdp->sd_log_head = sdp->sd_log_tail = value;
45 void gfs2_lock_for_flush(struct gfs2_sbd *sdp);
46 void gfs2_unlock_from_flush(struct gfs2_sbd *sdp);
48 unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
51 void gfs2_ail1_start(struct gfs2_sbd *sdp, int flags);
52 int gfs2_ail1_empty(struct gfs2_sbd *sdp, int flags);
54 int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
55 void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
57 struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp);
58 struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp,
59 struct buffer_head *real);
61 #define gfs2_log_flush(sdp) gfs2_log_flush_i((sdp), NULL)
62 #define gfs2_log_flush_glock(gl) gfs2_log_flush_i((gl)->gl_sbd, (gl))
63 void gfs2_log_flush_i(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
64 void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
66 void gfs2_log_shutdown(struct gfs2_sbd *sdp);
68 #endif /* __LOG_DOT_H__ */