2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 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 version 2.
13 #include <linux/list.h>
14 #include <linux/spinlock.h>
15 #include <linux/writeback.h>
20 * gfs2_log_lock - acquire the right to mess with the log manager
21 * @sdp: the filesystem
25 static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
26 __acquires(&sdp->sd_log_lock)
28 spin_lock(&sdp->sd_log_lock);
32 * gfs2_log_unlock - release the right to mess with the log manager
33 * @sdp: the filesystem
37 static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
38 __releases(&sdp->sd_log_lock)
40 spin_unlock(&sdp->sd_log_lock);
43 static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
46 if (++value == sdp->sd_jdesc->jd_blocks) {
49 sdp->sd_log_head = sdp->sd_log_tail = value;
52 static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
54 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
56 if (gfs2_is_jdata(ip) || !gfs2_is_ordered(sdp))
59 if (!test_bit(GIF_ORDERED, &ip->i_flags)) {
60 spin_lock(&sdp->sd_ordered_lock);
61 if (!test_and_set_bit(GIF_ORDERED, &ip->i_flags))
62 list_add(&ip->i_ordered, &sdp->sd_log_le_ordered);
63 spin_unlock(&sdp->sd_ordered_lock);
66 extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
67 extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
70 extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
71 extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
72 extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
73 u64 seq, u32 tail, u32 flags, int op_flags);
74 extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
76 extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
77 extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
79 extern void gfs2_log_shutdown(struct gfs2_sbd *sdp);
80 extern int gfs2_logd(void *data);
81 extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
82 extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
84 #endif /* __LOG_DOT_H__ */