1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 4 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 5 */ 6 7#ifndef __LOG_DOT_H__ 8#define __LOG_DOT_H__ 9 10#include <linux/list.h> 11#include <linux/spinlock.h> 12#include <linux/writeback.h> 13#include "incore.h" 14#include "inode.h" 15 16/** 17 * gfs2_log_lock - acquire the right to mess with the log manager 18 * @sdp: the filesystem 19 * 20 */ 21 22static inline void gfs2_log_lock(struct gfs2_sbd *sdp) 23__acquires(&sdp->sd_log_lock) 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__releases(&sdp->sd_log_lock) 36{ 37 spin_unlock(&sdp->sd_log_lock); 38} 39 40static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp, 41 unsigned int value) 42{ 43 if (++value == sdp->sd_jdesc->jd_blocks) { 44 value = 0; 45 } 46 sdp->sd_log_head = sdp->sd_log_tail = value; 47} 48 49static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip) 50{ 51 struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); 52 53 if (gfs2_is_jdata(ip) || !gfs2_is_ordered(sdp)) 54 return; 55 56 if (list_empty(&ip->i_ordered)) { 57 spin_lock(&sdp->sd_ordered_lock); 58 if (list_empty(&ip->i_ordered)) 59 list_add(&ip->i_ordered, &sdp->sd_log_ordered); 60 spin_unlock(&sdp->sd_ordered_lock); 61 } 62} 63 64extern void gfs2_ordered_del_inode(struct gfs2_inode *ip); 65extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct); 66extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd); 67extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks); 68extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks); 69extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, 70 u64 seq, u32 tail, u32 lblock, u32 flags, 71 int op_flags); 72extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, 73 u32 type); 74extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans); 75extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc); 76extern void log_flush_wait(struct gfs2_sbd *sdp); 77 78extern int gfs2_logd(void *data); 79extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd); 80extern void gfs2_glock_remove_revoke(struct gfs2_glock *gl); 81extern void gfs2_write_revokes(struct gfs2_sbd *sdp); 82 83#endif /* __LOG_DOT_H__ */ 84