2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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.
13 #include <linux/list.h>
14 #include <linux/spinlock.h>
18 * gfs2_log_lock - acquire the right to mess with the log manager
19 * @sdp: the filesystem
23 static inline void gfs2_log_lock(struct gfs2_sbd
*sdp
)
24 __acquires(&sdp
->sd_log_lock
)
26 spin_lock(&sdp
->sd_log_lock
);
30 * gfs2_log_unlock - release the right to mess with the log manager
31 * @sdp: the filesystem
35 static inline void gfs2_log_unlock(struct gfs2_sbd
*sdp
)
36 __releases(&sdp
->sd_log_lock
)
38 spin_unlock(&sdp
->sd_log_lock
);
41 static inline void gfs2_log_pointers_init(struct gfs2_sbd
*sdp
,
44 if (++value
== sdp
->sd_jdesc
->jd_blocks
) {
47 sdp
->sd_log_head
= sdp
->sd_log_tail
= value
;
50 unsigned int gfs2_struct2blk(struct gfs2_sbd
*sdp
, unsigned int nstruct
,
53 int gfs2_log_reserve(struct gfs2_sbd
*sdp
, unsigned int blks
);
54 void gfs2_log_release(struct gfs2_sbd
*sdp
, unsigned int blks
);
55 void gfs2_log_incr_head(struct gfs2_sbd
*sdp
);
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
);
60 void __gfs2_log_flush(struct gfs2_sbd
*sdp
, struct gfs2_glock
*gl
);
62 static inline void gfs2_log_flush(struct gfs2_sbd
*sbd
, struct gfs2_glock
*gl
)
64 if (!gl
|| test_bit(GLF_LFLUSH
, &gl
->gl_flags
))
65 __gfs2_log_flush(sbd
, gl
);
68 void gfs2_log_commit(struct gfs2_sbd
*sdp
, struct gfs2_trans
*trans
);
69 void gfs2_remove_from_ail(struct gfs2_bufdata
*bd
);
71 void gfs2_log_shutdown(struct gfs2_sbd
*sdp
);
72 void gfs2_meta_syncfs(struct gfs2_sbd
*sdp
);
73 int gfs2_logd(void *data
);
75 #endif /* __LOG_DOT_H__ */
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