| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
| * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
| */ |
| |
| #ifndef __LOG_DOT_H__ |
| #define __LOG_DOT_H__ |
| |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <linux/writeback.h> |
| #include "incore.h" |
| #include "inode.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; |
| } |
| |
| static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip) |
| { |
| struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
| |
| if (gfs2_is_jdata(ip) || !gfs2_is_ordered(sdp)) |
| return; |
| |
| if (!test_bit(GIF_ORDERED, &ip->i_flags)) { |
| spin_lock(&sdp->sd_ordered_lock); |
| if (!test_and_set_bit(GIF_ORDERED, &ip->i_flags)) |
| list_add(&ip->i_ordered, &sdp->sd_log_ordered); |
| spin_unlock(&sdp->sd_ordered_lock); |
| } |
| } |
| |
| extern void gfs2_ordered_del_inode(struct gfs2_inode *ip); |
| extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct); |
| |
| extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks); |
| extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks); |
| extern void gfs2_write_log_header(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, |
| u64 seq, u32 tail, u32 lblock, u32 flags, |
| int op_flags); |
| extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, |
| u32 type); |
| extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans); |
| extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc); |
| |
| extern int gfs2_logd(void *data); |
| extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd); |
| extern void gfs2_glock_remove_revoke(struct gfs2_glock *gl); |
| extern void gfs2_write_revokes(struct gfs2_sbd *sdp); |
| |
| #endif /* __LOG_DOT_H__ */ |