| /* |
| * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
| * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
| * |
| * This copyrighted material is made available to anyone wishing to use, |
| * modify, copy, or redistribute it subject to the terms and conditions |
| * of the GNU General Public License version 2. |
| */ |
| |
| #ifndef __LOG_DOT_H__ |
| #define __LOG_DOT_H__ |
| |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <linux/writeback.h> |
| #include "incore.h" |
| |
| /** |
| * gfs2_log_lock - acquire the right to mess with the log manager |
| * @sdp: the filesystem |
| * |
| */ |
| |
| static inline void gfs2_log_lock(struct gfs2_sbd *sdp) |
| __acquires(&sdp->sd_log_lock) |
| { |
| spin_lock(&sdp->sd_log_lock); |
| } |
| |
| /** |
| * gfs2_log_unlock - release the right to mess with the log manager |
| * @sdp: the filesystem |
| * |
| */ |
| |
| static inline void gfs2_log_unlock(struct gfs2_sbd *sdp) |
| __releases(&sdp->sd_log_lock) |
| { |
| spin_unlock(&sdp->sd_log_lock); |
| } |
| |
| static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp, |
| unsigned int value) |
| { |
| if (++value == sdp->sd_jdesc->jd_blocks) { |
| value = 0; |
| } |
| sdp->sd_log_head = sdp->sd_log_tail = value; |
| } |
| |
| extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct, |
| unsigned int ssize); |
| |
| extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks); |
| extern void gfs2_log_incr_head(struct gfs2_sbd *sdp); |
| extern u64 gfs2_log_bmap(struct gfs2_sbd *sdp, unsigned int lbn); |
| extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl); |
| extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans); |
| extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd); |
| extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc); |
| |
| extern void gfs2_log_shutdown(struct gfs2_sbd *sdp); |
| extern void gfs2_meta_syncfs(struct gfs2_sbd *sdp); |
| extern int gfs2_logd(void *data); |
| |
| #endif /* __LOG_DOT_H__ */ |