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authorLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 12:06:16 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 12:06:16 -0400
commit4a61f17378c2cdd9bd8f34ef8bd7422861d0c1f1 (patch)
treea2054556900af8c16fd9f5419f012dcf1ee2995a /fs/gfs2/log.h
parentd002ec481c24f325ed6cfcb7810d317c015dd1b5 (diff)
parent7ecdb70a0ea436c06540140242bfac6ac3babfc0 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6: (292 commits) [GFS2] Fix endian bug for de_type [GFS2] Initialize SELinux extended attributes at inode creation time. [GFS2] Move logging code into log.c (mostly) [GFS2] Mark nlink cleared so VFS sees it happen [GFS2] Two redundant casts removed [GFS2] Remove uneeded endian conversion [GFS2] Remove duplicate sb reading code [GFS2] Mark metadata reads for blktrace [GFS2] Remove iflags.h, use FS_ [GFS2] Fix code style/indent in ops_file.c [GFS2] streamline-generic_file_-interfaces-and-filemap gfs fix [GFS2] Remove readv/writev methods and use aio_read/aio_write instead (gfs bits) [GFS2] inode-diet: Eliminate i_blksize from the inode structure [GFS2] inode_diet: Replace inode.u.generic_ip with inode.i_private (gfs) [GFS2] Fix typo in last patch [GFS2] Fix direct i/o logic in filemap.c [GFS2] Fix bug in Makefiles for lock modules [GFS2] Remove (extra) fs_subsys declaration [GFS2/DLM] Fix trailing whitespace [GFS2] Tidy up meta_io code ...
Diffstat (limited to 'fs/gfs2/log.h')
-rw-r--r--fs/gfs2/log.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h
new file mode 100644
index 000000000000..7f5737d55612
--- /dev/null
+++ b/fs/gfs2/log.h
@@ -0,0 +1,65 @@
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
23static 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
34static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
35{
36 spin_unlock(&sdp->sd_log_lock);
37}
38
39static 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
48unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
49 unsigned int ssize);
50
51void gfs2_ail1_start(struct gfs2_sbd *sdp, int flags);
52int gfs2_ail1_empty(struct gfs2_sbd *sdp, int flags);
53
54int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
55void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
56
57struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp);
58struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp,
59 struct buffer_head *real);
60void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
61void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
62
63void gfs2_log_shutdown(struct gfs2_sbd *sdp);
64
65#endif /* __LOG_DOT_H__ */