1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
4*4882a593Smuzhiyun * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifndef __LOG_DOT_H__
8*4882a593Smuzhiyun #define __LOG_DOT_H__
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/list.h>
11*4882a593Smuzhiyun #include <linux/spinlock.h>
12*4882a593Smuzhiyun #include <linux/writeback.h>
13*4882a593Smuzhiyun #include "incore.h"
14*4882a593Smuzhiyun #include "inode.h"
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun /**
17*4882a593Smuzhiyun * gfs2_log_lock - acquire the right to mess with the log manager
18*4882a593Smuzhiyun * @sdp: the filesystem
19*4882a593Smuzhiyun *
20*4882a593Smuzhiyun */
21*4882a593Smuzhiyun
gfs2_log_lock(struct gfs2_sbd * sdp)22*4882a593Smuzhiyun static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
23*4882a593Smuzhiyun __acquires(&sdp->sd_log_lock)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun spin_lock(&sdp->sd_log_lock);
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun /**
29*4882a593Smuzhiyun * gfs2_log_unlock - release the right to mess with the log manager
30*4882a593Smuzhiyun * @sdp: the filesystem
31*4882a593Smuzhiyun *
32*4882a593Smuzhiyun */
33*4882a593Smuzhiyun
gfs2_log_unlock(struct gfs2_sbd * sdp)34*4882a593Smuzhiyun static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
35*4882a593Smuzhiyun __releases(&sdp->sd_log_lock)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun spin_unlock(&sdp->sd_log_lock);
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
gfs2_log_pointers_init(struct gfs2_sbd * sdp,unsigned int value)40*4882a593Smuzhiyun static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
41*4882a593Smuzhiyun unsigned int value)
42*4882a593Smuzhiyun {
43*4882a593Smuzhiyun if (++value == sdp->sd_jdesc->jd_blocks) {
44*4882a593Smuzhiyun value = 0;
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun sdp->sd_log_head = sdp->sd_log_tail = value;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
gfs2_ordered_add_inode(struct gfs2_inode * ip)49*4882a593Smuzhiyun static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun if (gfs2_is_jdata(ip) || !gfs2_is_ordered(sdp))
54*4882a593Smuzhiyun return;
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun if (list_empty(&ip->i_ordered)) {
57*4882a593Smuzhiyun spin_lock(&sdp->sd_ordered_lock);
58*4882a593Smuzhiyun if (list_empty(&ip->i_ordered))
59*4882a593Smuzhiyun list_add(&ip->i_ordered, &sdp->sd_log_ordered);
60*4882a593Smuzhiyun spin_unlock(&sdp->sd_ordered_lock);
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
65*4882a593Smuzhiyun extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct);
66*4882a593Smuzhiyun extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
67*4882a593Smuzhiyun extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
68*4882a593Smuzhiyun extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
69*4882a593Smuzhiyun extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
70*4882a593Smuzhiyun u64 seq, u32 tail, u32 lblock, u32 flags,
71*4882a593Smuzhiyun int op_flags);
72*4882a593Smuzhiyun extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
73*4882a593Smuzhiyun u32 type);
74*4882a593Smuzhiyun extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
75*4882a593Smuzhiyun extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
76*4882a593Smuzhiyun extern void log_flush_wait(struct gfs2_sbd *sdp);
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun extern int gfs2_logd(void *data);
79*4882a593Smuzhiyun extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
80*4882a593Smuzhiyun extern void gfs2_glock_remove_revoke(struct gfs2_glock *gl);
81*4882a593Smuzhiyun extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun #endif /* __LOG_DOT_H__ */
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