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f5456b5d67
Before this patch, the system ail lists were cleaned up if the logd process withdrew, but on other withdraws, they were not cleaned up. This included the cleaning up of the revokes as well. This patch reorganizes things a bit so that all withdraws (not just logd) clean up the ail lists, including any pending revokes. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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*/
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#ifndef __LOG_DOT_H__
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#define __LOG_DOT_H__
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/writeback.h>
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#include "incore.h"
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#include "inode.h"
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/*
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* The minimum amount of log space required for a log flush is one block for
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* revokes and one block for the log header. Log flushes other than
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* GFS2_LOG_HEAD_FLUSH_NORMAL may write one or two more log headers.
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*/
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#define GFS2_LOG_FLUSH_MIN_BLOCKS 4
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/**
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* gfs2_log_lock - acquire the right to mess with the log manager
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* @sdp: the filesystem
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*
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*/
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static inline void gfs2_log_lock(struct gfs2_sbd *sdp)
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__acquires(&sdp->sd_log_lock)
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{
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spin_lock(&sdp->sd_log_lock);
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}
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/**
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* gfs2_log_unlock - release the right to mess with the log manager
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* @sdp: the filesystem
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*
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*/
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static inline void gfs2_log_unlock(struct gfs2_sbd *sdp)
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__releases(&sdp->sd_log_lock)
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{
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spin_unlock(&sdp->sd_log_lock);
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}
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static inline void gfs2_log_pointers_init(struct gfs2_sbd *sdp,
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unsigned int value)
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{
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if (++value == sdp->sd_jdesc->jd_blocks) {
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value = 0;
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}
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sdp->sd_log_tail = value;
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sdp->sd_log_flush_tail = value;
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sdp->sd_log_head = value;
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}
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static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip)
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{
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struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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if (gfs2_is_jdata(ip) || !gfs2_is_ordered(sdp))
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return;
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if (list_empty(&ip->i_ordered)) {
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spin_lock(&sdp->sd_ordered_lock);
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if (list_empty(&ip->i_ordered))
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list_add(&ip->i_ordered, &sdp->sd_log_ordered);
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spin_unlock(&sdp->sd_ordered_lock);
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}
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}
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extern void gfs2_ordered_del_inode(struct gfs2_inode *ip);
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extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct);
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extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
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extern bool gfs2_log_is_empty(struct gfs2_sbd *sdp);
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extern void gfs2_log_release_revokes(struct gfs2_sbd *sdp, unsigned int revokes);
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extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
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extern bool gfs2_log_try_reserve(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
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unsigned int *extra_revokes);
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extern void gfs2_log_reserve(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
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unsigned int *extra_revokes);
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extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
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u64 seq, u32 tail, u32 lblock, u32 flags,
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int op_flags);
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extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl,
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u32 type);
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extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
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extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
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extern void log_flush_wait(struct gfs2_sbd *sdp);
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extern int gfs2_logd(void *data);
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extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
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extern void gfs2_glock_remove_revoke(struct gfs2_glock *gl);
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extern void gfs2_flush_revokes(struct gfs2_sbd *sdp);
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extern void gfs2_ail_drain(struct gfs2_sbd *sdp);
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#endif /* __LOG_DOT_H__ */
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