59 void gfs2_jindex_free(struct gfs2_sbd *sdp)  in gfs2_jindex_free()  argument
64 	spin_lock(&sdp->sd_jindex_spin);  in gfs2_jindex_free()
65 	list_add(&list, &sdp->sd_jindex_list);  in gfs2_jindex_free()
66 	list_del_init(&sdp->sd_jindex_list);  in gfs2_jindex_free()
67 	sdp->sd_journals = 0;  in gfs2_jindex_free()
68 	spin_unlock(&sdp->sd_jindex_spin);  in gfs2_jindex_free()
70 	sdp->sd_jdesc = NULL;  in gfs2_jindex_free()
99 struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid)  in gfs2_jdesc_find()  argument
103 	spin_lock(&sdp->sd_jindex_spin);  in gfs2_jdesc_find()
104 	jd = jdesc_find_i(&sdp->sd_jindex_list, jid);  in gfs2_jdesc_find()
105 	spin_unlock(&sdp->sd_jindex_spin);  in gfs2_jdesc_find()
113 	struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);  in gfs2_jdesc_check()  local
119 	jd->jd_blocks = size >> sdp->sd_sb.sb_bsize_shift;  in gfs2_jdesc_check()
129 static int init_threads(struct gfs2_sbd *sdp)  in init_threads()  argument
134 	p = kthread_run(gfs2_logd, sdp, "gfs2_logd");  in init_threads()
137 		fs_err(sdp, "can't start logd thread: %d\n", error);  in init_threads()
140 	sdp->sd_logd_process = p;  in init_threads()
142 	p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad");  in init_threads()
145 		fs_err(sdp, "can't start quotad thread: %d\n", error);  in init_threads()
148 	sdp->sd_quotad_process = p;  in init_threads()
152 	kthread_stop(sdp->sd_logd_process);  in init_threads()
153 	sdp->sd_logd_process = NULL;  in init_threads()
164 int gfs2_make_fs_rw(struct gfs2_sbd *sdp)  in gfs2_make_fs_rw()  argument
166 	struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);  in gfs2_make_fs_rw()
172 	error = init_threads(sdp);  in gfs2_make_fs_rw()
176 	error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,  in gfs2_make_fs_rw()
183 	if (gfs2_withdrawn(sdp)) {  in gfs2_make_fs_rw()
188 	error = gfs2_find_jhead(sdp->sd_jdesc, &head, false);  in gfs2_make_fs_rw()
189 	if (error || gfs2_withdrawn(sdp))  in gfs2_make_fs_rw()
193 		gfs2_consist(sdp);  in gfs2_make_fs_rw()
199 	sdp->sd_log_sequence = head.lh_sequence + 1;  in gfs2_make_fs_rw()
200 	gfs2_log_pointers_init(sdp, head.lh_blkno);  in gfs2_make_fs_rw()
202 	error = gfs2_quota_init(sdp);  in gfs2_make_fs_rw()
203 	if (error || gfs2_withdrawn(sdp))  in gfs2_make_fs_rw()
206 	set_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);  in gfs2_make_fs_rw()
215 	if (sdp->sd_quotad_process)  in gfs2_make_fs_rw()
216 		kthread_stop(sdp->sd_quotad_process);  in gfs2_make_fs_rw()
217 	sdp->sd_quotad_process = NULL;  in gfs2_make_fs_rw()
218 	if (sdp->sd_logd_process)  in gfs2_make_fs_rw()
219 		kthread_stop(sdp->sd_logd_process);  in gfs2_make_fs_rw()
220 	sdp->sd_logd_process = NULL;  in gfs2_make_fs_rw()
242 int gfs2_statfs_init(struct gfs2_sbd *sdp)  in gfs2_statfs_init()  argument
244 	struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);  in gfs2_statfs_init()
245 	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;  in gfs2_statfs_init()
246 	struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);  in gfs2_statfs_init()
247 	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;  in gfs2_statfs_init()
261 	if (sdp->sd_args.ar_spectator) {  in gfs2_statfs_init()
262 		spin_lock(&sdp->sd_statfs_spin);  in gfs2_statfs_init()
265 		spin_unlock(&sdp->sd_statfs_spin);  in gfs2_statfs_init()
271 		spin_lock(&sdp->sd_statfs_spin);  in gfs2_statfs_init()
276 		spin_unlock(&sdp->sd_statfs_spin);  in gfs2_statfs_init()
288 void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,  in gfs2_statfs_change()  argument
291 	struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);  in gfs2_statfs_change()
292 	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;  in gfs2_statfs_change()
293 	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;  in gfs2_statfs_change()
305 	spin_lock(&sdp->sd_statfs_spin);  in gfs2_statfs_change()
310 	if (sdp->sd_args.ar_statfs_percent) {  in gfs2_statfs_change()
312 		y = m_sc->sc_free * sdp->sd_args.ar_statfs_percent;  in gfs2_statfs_change()
316 	spin_unlock(&sdp->sd_statfs_spin);  in gfs2_statfs_change()
320 		gfs2_wake_up_statfs(sdp);  in gfs2_statfs_change()
323 void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,  in update_statfs()  argument
326 	struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);  in update_statfs()
327 	struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);  in update_statfs()
328 	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;  in update_statfs()
329 	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;  in update_statfs()
334 	spin_lock(&sdp->sd_statfs_spin);  in update_statfs()
342 	spin_unlock(&sdp->sd_statfs_spin);  in update_statfs()
347 	struct gfs2_sbd *sdp = sb->s_fs_info;  in gfs2_statfs_sync()  local
348 	struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);  in gfs2_statfs_sync()
349 	struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);  in gfs2_statfs_sync()
350 	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;  in gfs2_statfs_sync()
351 	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;  in gfs2_statfs_sync()
366 	spin_lock(&sdp->sd_statfs_spin);  in gfs2_statfs_sync()
370 		spin_unlock(&sdp->sd_statfs_spin);  in gfs2_statfs_sync()
373 	spin_unlock(&sdp->sd_statfs_spin);  in gfs2_statfs_sync()
379 	error = gfs2_trans_begin(sdp, 2 * RES_DINODE, 0);  in gfs2_statfs_sync()
383 	update_statfs(sdp, m_bh, l_bh);  in gfs2_statfs_sync()
384 	sdp->sd_statfs_force_sync = 0;  in gfs2_statfs_sync()
386 	gfs2_trans_end(sdp);  in gfs2_statfs_sync()
414 static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp)  in gfs2_lock_fs_check_clean()  argument
423 	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {  in gfs2_lock_fs_check_clean()
438 	error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_EXCLUSIVE,  in gfs2_lock_fs_check_clean()
439 				   LM_FLAG_NOEXP, &sdp->sd_freeze_gh);  in gfs2_lock_fs_check_clean()
443 	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {  in gfs2_lock_fs_check_clean()
457 		gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);  in gfs2_lock_fs_check_clean()
517 	struct gfs2_sbd *sdp = GFS2_SB(inode);  in gfs2_write_inode()  local
528 		gfs2_ail1_flush(sdp, wbc);  in gfs2_write_inode()
560 	struct gfs2_sbd *sdp = GFS2_SB(inode);  in gfs2_dirty_inode()  local
569 	if (unlikely(gfs2_withdrawn(sdp)))  in gfs2_dirty_inode()
574 			fs_err(sdp, "dirty_inode: glock %d\n", ret);  in gfs2_dirty_inode()
583 		ret = gfs2_trans_begin(sdp, RES_DINODE, 0);  in gfs2_dirty_inode()
585 			fs_err(sdp, "dirty_inode: gfs2_trans_begin %d\n", ret);  in gfs2_dirty_inode()
599 		gfs2_trans_end(sdp);  in gfs2_dirty_inode()
612 int gfs2_make_fs_ro(struct gfs2_sbd *sdp)  in gfs2_make_fs_ro()  argument
616 	int log_write_allowed = test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);  in gfs2_make_fs_ro()
619 	if (sdp->sd_freeze_gl &&  in gfs2_make_fs_ro()
620 	    !gfs2_glock_is_locked_by_me(sdp->sd_freeze_gl)) {  in gfs2_make_fs_ro()
622 			error = gfs2_glock_nq_init(sdp->sd_freeze_gl,  in gfs2_make_fs_ro()
629 			error = gfs2_glock_nq_init(sdp->sd_freeze_gl,  in gfs2_make_fs_ro()
633 			if (error && !gfs2_withdrawn(sdp))  in gfs2_make_fs_ro()
638 	gfs2_flush_delete_work(sdp);  in gfs2_make_fs_ro()
639 	if (!log_write_allowed && current == sdp->sd_quotad_process)  in gfs2_make_fs_ro()
640 		fs_warn(sdp, "The quotad daemon is withdrawing.\n");  in gfs2_make_fs_ro()
641 	else if (sdp->sd_quotad_process)  in gfs2_make_fs_ro()
642 		kthread_stop(sdp->sd_quotad_process);  in gfs2_make_fs_ro()
643 	sdp->sd_quotad_process = NULL;  in gfs2_make_fs_ro()
645 	if (!log_write_allowed && current == sdp->sd_logd_process)  in gfs2_make_fs_ro()
646 		fs_warn(sdp, "The logd daemon is withdrawing.\n");  in gfs2_make_fs_ro()
647 	else if (sdp->sd_logd_process)  in gfs2_make_fs_ro()
648 		kthread_stop(sdp->sd_logd_process);  in gfs2_make_fs_ro()
649 	sdp->sd_logd_process = NULL;  in gfs2_make_fs_ro()
652 		gfs2_quota_sync(sdp->sd_vfs, 0);  in gfs2_make_fs_ro()
653 		gfs2_statfs_sync(sdp->sd_vfs, 0);  in gfs2_make_fs_ro()
655 		gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_SHUTDOWN |  in gfs2_make_fs_ro()
657 		wait_event(sdp->sd_reserving_log_wait,  in gfs2_make_fs_ro()
658 			   atomic_read(&sdp->sd_reserving_log) == 0);  in gfs2_make_fs_ro()
659 		gfs2_assert_warn(sdp, atomic_read(&sdp->sd_log_blks_free) ==  in gfs2_make_fs_ro()
660 				 sdp->sd_jdesc->jd_blocks);  in gfs2_make_fs_ro()
662 		wait_event_timeout(sdp->sd_reserving_log_wait,  in gfs2_make_fs_ro()
663 				   atomic_read(&sdp->sd_reserving_log) == 0,  in gfs2_make_fs_ro()
669 	gfs2_quota_cleanup(sdp);  in gfs2_make_fs_ro()
672 		sdp->sd_vfs->s_flags |= SB_RDONLY;  in gfs2_make_fs_ro()
685 	struct gfs2_sbd *sdp = sb->s_fs_info;  in gfs2_put_super()  local
690 	set_bit(SDF_NORECOVERY, &sdp->sd_flags);  in gfs2_put_super()
695 	spin_lock(&sdp->sd_jindex_spin);  in gfs2_put_super()
696 	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {  in gfs2_put_super()
699 		spin_unlock(&sdp->sd_jindex_spin);  in gfs2_put_super()
704 	spin_unlock(&sdp->sd_jindex_spin);  in gfs2_put_super()
707 		error = gfs2_make_fs_ro(sdp);  in gfs2_put_super()
709 			gfs2_io_error(sdp);  in gfs2_put_super()
711 	WARN_ON(gfs2_withdrawing(sdp));  in gfs2_put_super()
717 	iput(sdp->sd_jindex);  in gfs2_put_super()
718 	iput(sdp->sd_statfs_inode);  in gfs2_put_super()
719 	iput(sdp->sd_rindex);  in gfs2_put_super()
720 	iput(sdp->sd_quota_inode);  in gfs2_put_super()
722 	gfs2_glock_put(sdp->sd_rename_gl);  in gfs2_put_super()
723 	gfs2_glock_put(sdp->sd_freeze_gl);  in gfs2_put_super()
725 	if (!sdp->sd_args.ar_spectator) {  in gfs2_put_super()
726 		if (gfs2_holder_initialized(&sdp->sd_journal_gh))  in gfs2_put_super()
727 			gfs2_glock_dq_uninit(&sdp->sd_journal_gh);  in gfs2_put_super()
728 		if (gfs2_holder_initialized(&sdp->sd_jinode_gh))  in gfs2_put_super()
729 			gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);  in gfs2_put_super()
730 		gfs2_glock_dq_uninit(&sdp->sd_sc_gh);  in gfs2_put_super()
731 		gfs2_glock_dq_uninit(&sdp->sd_qc_gh);  in gfs2_put_super()
732 		free_local_statfs_inodes(sdp);  in gfs2_put_super()
733 		iput(sdp->sd_qc_inode);  in gfs2_put_super()
736 	gfs2_glock_dq_uninit(&sdp->sd_live_gh);  in gfs2_put_super()
737 	gfs2_clear_rgrpd(sdp);  in gfs2_put_super()
738 	gfs2_jindex_free(sdp);  in gfs2_put_super()
740 	gfs2_gl_hash_clear(sdp);  in gfs2_put_super()
741 	truncate_inode_pages_final(&sdp->sd_aspace);  in gfs2_put_super()
742 	gfs2_delete_debugfs_file(sdp);  in gfs2_put_super()
744 	gfs2_lm_unmount(sdp);  in gfs2_put_super()
747 	gfs2_sys_fs_del(sdp);  in gfs2_put_super()
748 	free_sbd(sdp);  in gfs2_put_super()
760 	struct gfs2_sbd *sdp = sb->s_fs_info;  in gfs2_sync_fs()  local
764 		gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |  in gfs2_sync_fs()
766 	return sdp->sd_log_error;  in gfs2_sync_fs()
773 	struct gfs2_sbd *sdp = container_of(work, struct gfs2_sbd, sd_freeze_work);  in gfs2_freeze_func()  local
774 	struct super_block *sb = sdp->sd_vfs;  in gfs2_freeze_func()
777 	error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_SHARED,  in gfs2_freeze_func()
780 		fs_info(sdp, "GFS2: couldn't get freeze lock : %d\n", error);  in gfs2_freeze_func()
781 		gfs2_assert_withdraw(sdp, 0);  in gfs2_freeze_func()
783 		atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);  in gfs2_freeze_func()
786 			fs_info(sdp, "GFS2: couldn't thaw filesystem: %d\n",  in gfs2_freeze_func()
788 			gfs2_assert_withdraw(sdp, 0);  in gfs2_freeze_func()
793 	clear_bit_unlock(SDF_FS_FROZEN, &sdp->sd_flags);  in gfs2_freeze_func()
794 	wake_up_bit(&sdp->sd_flags, SDF_FS_FROZEN);  in gfs2_freeze_func()
806 	struct gfs2_sbd *sdp = sb->s_fs_info;  in gfs2_freeze()  local
809 	mutex_lock(&sdp->sd_freeze_mutex);  in gfs2_freeze()
810 	if (atomic_read(&sdp->sd_freeze_state) != SFS_UNFROZEN)  in gfs2_freeze()
814 		if (gfs2_withdrawn(sdp)) {  in gfs2_freeze()
819 		error = gfs2_lock_fs_check_clean(sdp);  in gfs2_freeze()
824 			fs_err(sdp, "waiting for recovery before freeze\n");  in gfs2_freeze()
826 			fs_err(sdp, "Fatal IO error: cannot freeze gfs2 due "  in gfs2_freeze()
830 			fs_err(sdp, "error freezing FS: %d\n", error);  in gfs2_freeze()
832 		fs_err(sdp, "retrying...\n");  in gfs2_freeze()
835 	set_bit(SDF_FS_FROZEN, &sdp->sd_flags);  in gfs2_freeze()
837 	mutex_unlock(&sdp->sd_freeze_mutex);  in gfs2_freeze()
849 	struct gfs2_sbd *sdp = sb->s_fs_info;  in gfs2_unfreeze()  local
851 	mutex_lock(&sdp->sd_freeze_mutex);  in gfs2_unfreeze()
852         if (atomic_read(&sdp->sd_freeze_state) != SFS_FROZEN ||  in gfs2_unfreeze()
853 	    !gfs2_holder_initialized(&sdp->sd_freeze_gh)) {  in gfs2_unfreeze()
854 		mutex_unlock(&sdp->sd_freeze_mutex);  in gfs2_unfreeze()
858 	gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);  in gfs2_unfreeze()
859 	mutex_unlock(&sdp->sd_freeze_mutex);  in gfs2_unfreeze()
860 	return wait_on_bit(&sdp->sd_flags, SDF_FS_FROZEN, TASK_INTERRUPTIBLE);  in gfs2_unfreeze()
894 static int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)  in gfs2_statfs_slow()  argument
910 	rgd_next = gfs2_rgrpd_get_first(sdp);  in gfs2_statfs_slow()
967 static int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)  in gfs2_statfs_i()  argument
969 	struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;  in gfs2_statfs_i()
970 	struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;  in gfs2_statfs_i()
972 	spin_lock(&sdp->sd_statfs_spin);  in gfs2_statfs_i()
979 	spin_unlock(&sdp->sd_statfs_spin);  in gfs2_statfs_i()
1002 	struct gfs2_sbd *sdp = sb->s_fs_info;  in gfs2_statfs()  local
1006 	error = gfs2_rindex_update(sdp);  in gfs2_statfs()
1010 	if (gfs2_tune_get(sdp, gt_statfs_slow))  in gfs2_statfs()
1011 		error = gfs2_statfs_slow(sdp, &sc);  in gfs2_statfs()
1013 		error = gfs2_statfs_i(sdp, &sc);  in gfs2_statfs()
1019 	buf->f_bsize = sdp->sd_sb.sb_bsize;  in gfs2_statfs()
1096 	struct gfs2_sbd *sdp = root->d_sb->s_fs_info;  in gfs2_show_options()  local
1097 	struct gfs2_args *args = &sdp->sd_args;  in gfs2_show_options()
1100 	if (is_ancestor(root, sdp->sd_master_dir))  in gfs2_show_options()
1153 	val = sdp->sd_tune.gt_logd_secs;  in gfs2_show_options()
1156 	val = sdp->sd_tune.gt_statfs_quantum;  in gfs2_show_options()
1159 	else if (sdp->sd_tune.gt_statfs_slow)  in gfs2_show_options()
1161 	val = sdp->sd_tune.gt_quota_quantum;  in gfs2_show_options()
1182 	if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))  in gfs2_show_options()
1184 	if (test_bit(SDF_DEMOTE, &sdp->sd_flags))  in gfs2_show_options()
1209 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);  in gfs2_dinode_dealloc()  local
1219 	error = gfs2_rindex_update(sdp);  in gfs2_dinode_dealloc()
1227 	rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr, 1);  in gfs2_dinode_dealloc()
1238 	error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS + RES_QUOTA,  in gfs2_dinode_dealloc()
1239 				 sdp->sd_jdesc->jd_blocks);  in gfs2_dinode_dealloc()
1247 	gfs2_trans_end(sdp);  in gfs2_dinode_dealloc()
1275 	struct gfs2_sbd *sdp = GFS2_SB(inode);  in gfs2_upgrade_iopen_glock()  local
1310 	timeout = wait_event_interruptible_timeout(sdp->sd_async_glock_wait,  in gfs2_upgrade_iopen_glock()
1335 	struct gfs2_sbd *sdp = sb->s_fs_info;  in evict_should_delete()  local
1361 	ret = gfs2_check_blk_type(sdp, ip->i_no_addr, GFS2_BLKST_UNLINKED);  in evict_should_delete()
1434 	struct gfs2_sbd *sdp = sb->s_fs_info;  in evict_linked_inode()  local
1439 	gfs2_log_flush(sdp, ip->i_gl, GFS2_LOG_HEAD_FLUSH_NORMAL |  in evict_linked_inode()
1449 	ret = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);  in evict_linked_inode()
1456 	gfs2_trans_end(sdp);  in evict_linked_inode()
1484 	struct gfs2_sbd *sdp = sb->s_fs_info;  in gfs2_evict_inode()  local
1514 		fs_warn(sdp, "gfs2_evict_inode: %d\n", ret);  in gfs2_evict_inode()
1518 		gfs2_assert_warn(sdp, ip->i_qadata->qa_ref == 0);  in gfs2_evict_inode()
1565 extern void free_local_statfs_inodes(struct gfs2_sbd *sdp)  in free_local_statfs_inodes()  argument
1570 	list_for_each_entry_safe(lsi, safe, &sdp->sd_sc_inodes_list, si_list) {  in free_local_statfs_inodes()
1571 		if (lsi->si_jid == sdp->sd_jdesc->jd_jid)  in free_local_statfs_inodes()
1572 			sdp->sd_sc_inode = NULL; /* belongs to this node */  in free_local_statfs_inodes()
1580 extern struct inode *find_local_statfs_inode(struct gfs2_sbd *sdp,  in find_local_statfs_inode()  argument
1587 	list_for_each_entry(lsi, &sdp->sd_sc_inodes_list, si_list) {  in find_local_statfs_inode()