Commit | Line | Data |
---|---|---|
b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3a8a9a10 | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
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 | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
9 | ||
10 | #ifndef __LOG_DOT_H__ | |
11 | #define __LOG_DOT_H__ | |
12 | ||
f2f7ba52 SW |
13 | #include <linux/list.h> |
14 | #include <linux/spinlock.h> | |
4667a0ec | 15 | #include <linux/writeback.h> |
f2f7ba52 | 16 | #include "incore.h" |
845802b1 | 17 | #include "inode.h" |
f2f7ba52 | 18 | |
b3b94faa DT |
19 | /** |
20 | * gfs2_log_lock - acquire the right to mess with the log manager | |
21 | * @sdp: the filesystem | |
22 | * | |
23 | */ | |
24 | ||
25 | static inline void gfs2_log_lock(struct gfs2_sbd *sdp) | |
2d81afb8 | 26 | __acquires(&sdp->sd_log_lock) |
b3b94faa DT |
27 | { |
28 | spin_lock(&sdp->sd_log_lock); | |
29 | } | |
30 | ||
31 | /** | |
32 | * gfs2_log_unlock - release the right to mess with the log manager | |
33 | * @sdp: the filesystem | |
34 | * | |
35 | */ | |
36 | ||
37 | static inline void gfs2_log_unlock(struct gfs2_sbd *sdp) | |
2d81afb8 | 38 | __releases(&sdp->sd_log_lock) |
b3b94faa DT |
39 | { |
40 | spin_unlock(&sdp->sd_log_lock); | |
41 | } | |
42 | ||
43 | static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp, | |
44 | unsigned int value) | |
45 | { | |
46 | if (++value == sdp->sd_jdesc->jd_blocks) { | |
47 | value = 0; | |
b3b94faa DT |
48 | } |
49 | sdp->sd_log_head = sdp->sd_log_tail = value; | |
50 | } | |
51 | ||
45138990 SW |
52 | static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip) |
53 | { | |
845802b1 | 54 | struct gfs2_sbd *sdp; |
45138990 | 55 | |
845802b1 AG |
56 | if (!gfs2_is_ordered(ip)) |
57 | return; | |
58 | ||
59 | sdp = GFS2_SB(&ip->i_inode); | |
45138990 SW |
60 | if (!test_bit(GIF_ORDERED, &ip->i_flags)) { |
61 | spin_lock(&sdp->sd_ordered_lock); | |
62 | if (!test_and_set_bit(GIF_ORDERED, &ip->i_flags)) | |
63 | list_add(&ip->i_ordered, &sdp->sd_log_le_ordered); | |
64 | spin_unlock(&sdp->sd_ordered_lock); | |
65 | } | |
66 | } | |
67 | extern void gfs2_ordered_del_inode(struct gfs2_inode *ip); | |
ed4878e8 | 68 | extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct, |
b3b94faa DT |
69 | unsigned int ssize); |
70 | ||
24972557 | 71 | extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks); |
ed4878e8 | 72 | extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks); |
c1696fb8 BP |
73 | extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, |
74 | u64 seq, u32 tail, u32 flags, int op_flags); | |
24972557 | 75 | extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, |
c1696fb8 | 76 | u32 type); |
ed4878e8 | 77 | extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans); |
4667a0ec | 78 | extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc); |
2bcd610d | 79 | |
ed4878e8 | 80 | extern void gfs2_log_shutdown(struct gfs2_sbd *sdp); |
ed4878e8 | 81 | extern int gfs2_logd(void *data); |
5d054964 BM |
82 | extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd); |
83 | extern void gfs2_write_revokes(struct gfs2_sbd *sdp); | |
b3b94faa DT |
84 | |
85 | #endif /* __LOG_DOT_H__ */ |