1 /*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
4 *
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.
8 */
9
10 #ifndef __LOG_DOT_H__
11 #define __LOG_DOT_H__
12
13 #include <linux/list.h>
14 #include <linux/spinlock.h>
15 #include "incore.h"
16
17 /**
18 * gfs2_log_lock - acquire the right to mess with the log manager
19 * @sdp: the filesystem
20 *
21 */
22
23 static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
24 {
25 spin_lock(&sdp->sd_log_lock);
26 }
27
28 /**
29 * gfs2_log_unlock - release the right to mess with the log manager
30 * @sdp: the filesystem
31 *
32 */
33
34 static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
35 {
36 spin_unlock(&sdp->sd_log_lock);
37 }
38
39 static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
40 unsigned int value)
41 {
42 if (++value == sdp->sd_jdesc->jd_blocks) {
43 value = 0;
44 }
45 sdp->sd_log_head = sdp->sd_log_tail = value;
46 }
47
48 unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
49 unsigned int ssize);
50
51 int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
52 void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
53 void gfs2_log_incr_head(struct gfs2_sbd *sdp);
54
55 struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp);
56 struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp,
57 struct buffer_head *real);
58 void __gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
59
60 static inline void gfs2_log_flush(struct gfs2_sbd *sbd, struct gfs2_glock *gl)
61 {
62 if (!gl || test_bit(GLF_LFLUSH, &gl->gl_flags))
63 __gfs2_log_flush(sbd, gl);
64 }
65
66 void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
67 void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
68
69 void gfs2_log_shutdown(struct gfs2_sbd *sdp);
70 void gfs2_meta_syncfs(struct gfs2_sbd *sdp);
71 int gfs2_logd(void *data);
72
73 #endif /* __LOG_DOT_H__ */
74
|
This page was automatically generated by the
LXR engine.
|