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review.shift-gmbh.com / SHIFTPHONES / kernel / shift / mainline / 1dc0aa46e74a3366e12f426b7caaca477853e9c3 / . / fs / gfs2 / log.h
blob: 20241436126da6112925009e2adc9b4158699007 [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -0400[diff] [blame]3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]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
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -0400[diff] [blame]7 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]8 */
9
10#ifndef __LOG_DOT_H__
11#define __LOG_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -0400[diff] [blame]13#include <linux/list.h>
14#include <linux/spinlock.h>
Steven Whitehouse4667a0e2011-04-18 14:18:09 +0100[diff] [blame]15#include <linux/writeback.h>
Steven Whitehousef2f7ba52006-09-05 10:39:21 -0400[diff] [blame]16#include "incore.h"
Andreas Gruenbacher845802b2018-06-04 07:50:16 -0500[diff] [blame]17#include "inode.h"
Steven Whitehousef2f7ba52006-09-05 10:39:21 -0400[diff] [blame]18
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]19/**
20 * gfs2_log_lock - acquire the right to mess with the log manager
21 * @sdp: the filesystem
22 *
23 */
24
25static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
Harvey Harrison2d81afb2008-05-29 18:27:51 -0700[diff] [blame]26__acquires(&sdp->sd_log_lock)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]27{
28 spin_lock(&sdp->sd_log_lock);
29}
30
31/**
32 * gfs2_log_unlock - release the right to mess with the log manager
33 * @sdp: the filesystem
34 *
35 */
36
37static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
Harvey Harrison2d81afb2008-05-29 18:27:51 -0700[diff] [blame]38__releases(&sdp->sd_log_lock)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]39{
40 spin_unlock(&sdp->sd_log_lock);
41}
42
43static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
44 unsigned int value)
45{
46 if (++value == sdp->sd_jdesc->jd_blocks) {
47 value = 0;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]48 }
49 sdp->sd_log_head = sdp->sd_log_tail = value;
50}
51
Steven Whitehouse45138992013-01-28 09:30:07 +0000[diff] [blame]52static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
53{
Andreas Gruenbacher845802b2018-06-04 07:50:16 -0500[diff] [blame]54 struct gfs2_sbd *sdp;
Steven Whitehouse45138992013-01-28 09:30:07 +0000[diff] [blame]55
Andreas Gruenbacher845802b2018-06-04 07:50:16 -0500[diff] [blame]56 if (!gfs2_is_ordered(ip))
57 return;
58
59 sdp = GFS2_SB(&ip->i_inode);
Steven Whitehouse45138992013-01-28 09:30:07 +0000[diff] [blame]60 if (!test_bit(GIF_ORDERED, &ip->i_flags)) {
61 spin_lock(&sdp->sd_ordered_lock);
62 if (!test_and_set_bit(GIF_ORDERED, &ip->i_flags))
63 list_add(&ip->i_ordered, &sdp->sd_log_le_ordered);
64 spin_unlock(&sdp->sd_ordered_lock);
65 }
66}
67extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
Bob Petersoned4878e2010-05-20 23:30:11 -0400[diff] [blame]68extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]69 unsigned int ssize);
70
Benjamin Marzinski24972552014-05-01 22:26:55 -0500[diff] [blame]71extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
Bob Petersoned4878e2010-05-20 23:30:11 -0400[diff] [blame]72extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
Bob Petersonc1696fb2018-01-17 00:01:33 +0100[diff] [blame]73extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
74 u64 seq, u32 tail, u32 flags, int op_flags);
Benjamin Marzinski24972552014-05-01 22:26:55 -0500[diff] [blame]75extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
Bob Petersonc1696fb2018-01-17 00:01:33 +0100[diff] [blame]76 u32 type);
Bob Petersoned4878e2010-05-20 23:30:11 -0400[diff] [blame]77extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
Steven Whitehouse4667a0e2011-04-18 14:18:09 +0100[diff] [blame]78extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
Steven Whitehouse2bcd6102007-11-08 14:25:12 +0000[diff] [blame]79
Bob Petersoned4878e2010-05-20 23:30:11 -0400[diff] [blame]80extern void gfs2_log_shutdown(struct gfs2_sbd *sdp);
Bob Petersoned4878e2010-05-20 23:30:11 -0400[diff] [blame]81extern int gfs2_logd(void *data);
Benjamin Marzinski5d054962013-06-14 11:38:29 -0500[diff] [blame]82extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
83extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]84
85#endif /* __LOG_DOT_H__ */