projects / linux-2.6-block.git / blame
| 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> | |
| 15 | #include "incore.h" | |
| 16 | ||
| b3b94faa DT |
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) | |
| 2d81afb8 | 24 | __acquires(&sdp->sd_log_lock) |
| b3b94faa DT |
25 | { |
| 26 | spin_lock(&sdp->sd_log_lock); | |
| 27 | } | |
| 28 | ||
| 29 | /** | |
| 30 | * gfs2_log_unlock - release the right to mess with the log manager | |
| 31 | * @sdp: the filesystem | |
| 32 | * | |
| 33 | */ | |
| 34 | ||
| 35 | static inline void gfs2_log_unlock(struct gfs2_sbd *sdp) | |
| 2d81afb8 | 36 | __releases(&sdp->sd_log_lock) |
| b3b94faa DT |
37 | { |
| 38 | spin_unlock(&sdp->sd_log_lock); | |
| 39 | } | |
| 40 | ||
| 41 | static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp, | |
| 42 | unsigned int value) | |
| 43 | { | |
| 44 | if (++value == sdp->sd_jdesc->jd_blocks) { | |
| 45 | value = 0; | |
| b3b94faa DT |
46 | } |
| 47 | sdp->sd_log_head = sdp->sd_log_tail = value; | |
| 48 | } | |
| 49 | ||
| b3b94faa DT |
50 | unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct, |
| 51 | unsigned int ssize); | |
| 52 | ||
| b3b94faa DT |
53 | int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks); |
| 54 | void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks); | |
| 16615be1 | 55 | void gfs2_log_incr_head(struct gfs2_sbd *sdp); |
| b3b94faa DT |
56 | |
| 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); | |
| 2bcd610d SW |
60 | void __gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl); |
| 61 | ||
| 62 | static inline void gfs2_log_flush(struct gfs2_sbd *sbd, struct gfs2_glock *gl) | |
| 63 | { | |
| 64 | if (!gl || test_bit(GLF_LFLUSH, &gl->gl_flags)) | |
| 65 | __gfs2_log_flush(sbd, gl); | |
| 66 | } | |
| 67 | ||
| b3b94faa | 68 | void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans); |
| f91a0d3e | 69 | void gfs2_remove_from_ail(struct gfs2_bufdata *bd); |
| b3b94faa DT |
70 | |
| 71 | void gfs2_log_shutdown(struct gfs2_sbd *sdp); | |
| a25311c8 | 72 | void gfs2_meta_syncfs(struct gfs2_sbd *sdp); |
| ec69b188 | 73 | int gfs2_logd(void *data); |
| b3b94faa DT |
74 | |
| 75 | #endif /* __LOG_DOT_H__ */ |