39 	struct ceph_fs_client *fsc = ceph_sb_to_client(s);  in ceph_put_super()  local
42 	ceph_mdsc_close_sessions(fsc->mdsc);  in ceph_put_super()
47 	struct ceph_fs_client *fsc = ceph_inode_to_client(d_inode(dentry));  in ceph_statfs()  local
48 	struct ceph_monmap *monmap = fsc->client->monc.monmap;  in ceph_statfs()
54 	err = ceph_monc_do_statfs(&fsc->client->monc, &st);  in ceph_statfs()
91 	struct ceph_fs_client *fsc = ceph_sb_to_client(sb);  in ceph_sync_fs()  local
95 		ceph_flush_dirty_caps(fsc->mdsc);  in ceph_sync_fs()
101 	ceph_osdc_sync(&fsc->client->osdc);  in ceph_sync_fs()
102 	ceph_mdsc_sync(fsc->mdsc);  in ceph_sync_fs()
316 				 struct ceph_fs_client *fsc)  in compare_mount_options()  argument
319 	struct ceph_mount_options *fsopt2 = fsc->mount_options;  in compare_mount_options()
331 	return ceph_compare_options(new_opt, fsc->client);  in compare_mount_options()
423 	struct ceph_fs_client *fsc = ceph_sb_to_client(root->d_sb);  in ceph_show_options()  local
424 	struct ceph_mount_options *fsopt = fsc->mount_options;  in ceph_show_options()
432 	ret = ceph_print_client_options(m, fsc->client);  in ceph_show_options()
493 	struct ceph_fs_client *fsc = client->private;  in extra_mon_dispatch()  local
498 		ceph_mdsc_handle_map(fsc->mdsc, msg);  in extra_mon_dispatch()
512 	struct ceph_fs_client *fsc;  in create_fs_client()  local
522 	fsc = kzalloc(sizeof(*fsc), GFP_KERNEL);  in create_fs_client()
523 	if (!fsc)  in create_fs_client()
526 	fsc->client = ceph_create_client(opt, fsc, supported_features,  in create_fs_client()
528 	if (IS_ERR(fsc->client)) {  in create_fs_client()
529 		err = PTR_ERR(fsc->client);  in create_fs_client()
532 	fsc->client->extra_mon_dispatch = extra_mon_dispatch;  in create_fs_client()
533 	fsc->client->monc.want_mdsmap = 1;  in create_fs_client()
535 	fsc->mount_options = fsopt;  in create_fs_client()
537 	fsc->sb = NULL;  in create_fs_client()
538 	fsc->mount_state = CEPH_MOUNT_MOUNTING;  in create_fs_client()
540 	atomic_long_set(&fsc->writeback_count, 0);  in create_fs_client()
542 	err = bdi_init(&fsc->backing_dev_info);  in create_fs_client()
551 	fsc->wb_wq = alloc_workqueue("ceph-writeback", 0, 1);  in create_fs_client()
552 	if (fsc->wb_wq == NULL)  in create_fs_client()
554 	fsc->pg_inv_wq = alloc_workqueue("ceph-pg-invalid", 0, 1);  in create_fs_client()
555 	if (fsc->pg_inv_wq == NULL)  in create_fs_client()
557 	fsc->trunc_wq = alloc_workqueue("ceph-trunc", 0, 1);  in create_fs_client()
558 	if (fsc->trunc_wq == NULL)  in create_fs_client()
563 	page_count = fsc->mount_options->wsize >> PAGE_CACHE_SHIFT;  in create_fs_client()
565 	fsc->wb_pagevec_pool = mempool_create_kmalloc_pool(10, size);  in create_fs_client()
566 	if (!fsc->wb_pagevec_pool)  in create_fs_client()
571 	    (ceph_fscache_register_fs(fsc) != 0))  in create_fs_client()
575 	fsc->min_caps = fsopt->max_readdir;  in create_fs_client()
577 	return fsc;  in create_fs_client()
580 	ceph_fscache_unregister_fs(fsc);  in create_fs_client()
582 	destroy_workqueue(fsc->trunc_wq);  in create_fs_client()
584 	destroy_workqueue(fsc->pg_inv_wq);  in create_fs_client()
586 	destroy_workqueue(fsc->wb_wq);  in create_fs_client()
588 	bdi_destroy(&fsc->backing_dev_info);  in create_fs_client()
590 	ceph_destroy_client(fsc->client);  in create_fs_client()
592 	kfree(fsc);  in create_fs_client()
596 static void destroy_fs_client(struct ceph_fs_client *fsc)  in destroy_fs_client()  argument
598 	dout("destroy_fs_client %p\n", fsc);  in destroy_fs_client()
600 	ceph_fscache_unregister_fs(fsc);  in destroy_fs_client()
602 	destroy_workqueue(fsc->wb_wq);  in destroy_fs_client()
603 	destroy_workqueue(fsc->pg_inv_wq);  in destroy_fs_client()
604 	destroy_workqueue(fsc->trunc_wq);  in destroy_fs_client()
606 	bdi_destroy(&fsc->backing_dev_info);  in destroy_fs_client()
608 	mempool_destroy(fsc->wb_pagevec_pool);  in destroy_fs_client()
610 	destroy_mount_options(fsc->mount_options);  in destroy_fs_client()
612 	ceph_fs_debugfs_cleanup(fsc);  in destroy_fs_client()
614 	ceph_destroy_client(fsc->client);  in destroy_fs_client()
616 	kfree(fsc);  in destroy_fs_client()
617 	dout("destroy_fs_client %p done\n", fsc);  in destroy_fs_client()
705 	struct ceph_fs_client *fsc = ceph_sb_to_client(sb);  in ceph_umount_begin()  local
708 	if (!fsc)  in ceph_umount_begin()
710 	fsc->mount_state = CEPH_MOUNT_SHUTDOWN;  in ceph_umount_begin()
711 	ceph_mdsc_force_umount(fsc->mdsc);  in ceph_umount_begin()
731 static struct dentry *open_root_dentry(struct ceph_fs_client *fsc,  in open_root_dentry()  argument
735 	struct ceph_mds_client *mdsc = fsc->mdsc;  in open_root_dentry()
754 	req->r_timeout = fsc->client->options->mount_timeout;  in open_root_dentry()
763 		    fsc->sb->s_root == NULL) {  in open_root_dentry()
788 static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc,  in ceph_real_mount()  argument
797 	mutex_lock(&fsc->client->mount_mutex);  in ceph_real_mount()
799 	err = __ceph_open_session(fsc->client, started);  in ceph_real_mount()
804 	root = open_root_dentry(fsc, "", started);  in ceph_real_mount()
809 	if (fsc->sb->s_root) {  in ceph_real_mount()
812 		fsc->sb->s_root = root;  in ceph_real_mount()
815 		err = ceph_fs_debugfs_init(fsc);  in ceph_real_mount()
824 		root = open_root_dentry(fsc, path, started);  in ceph_real_mount()
831 	fsc->mount_state = CEPH_MOUNT_MOUNTED;  in ceph_real_mount()
833 	mutex_unlock(&fsc->client->mount_mutex);  in ceph_real_mount()
837 	mutex_unlock(&fsc->client->mount_mutex);  in ceph_real_mount()
842 		dput(fsc->sb->s_root);  in ceph_real_mount()
843 		fsc->sb->s_root = NULL;  in ceph_real_mount()
850 	struct ceph_fs_client *fsc = data;  in ceph_set_super()  local
855 	s->s_flags = fsc->mount_options->sb_flags;  in ceph_set_super()
859 	s->s_fs_info = fsc;  in ceph_set_super()
860 	fsc->sb = s;  in ceph_set_super()
875 	fsc->sb = NULL;  in ceph_set_super()
913 			     struct ceph_fs_client *fsc)  in ceph_register_bdi()  argument
918 	if (fsc->mount_options->rasize >= PAGE_CACHE_SIZE)  in ceph_register_bdi()
919 		fsc->backing_dev_info.ra_pages =  in ceph_register_bdi()
920 			(fsc->mount_options->rasize + PAGE_CACHE_SIZE - 1)  in ceph_register_bdi()
923 		fsc->backing_dev_info.ra_pages =  in ceph_register_bdi()
926 	err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld",  in ceph_register_bdi()
929 		sb->s_bdi = &fsc->backing_dev_info;  in ceph_register_bdi()
937 	struct ceph_fs_client *fsc;  in ceph_mount()  local
957 	fsc = create_fs_client(fsopt, opt);  in ceph_mount()
958 	if (IS_ERR(fsc)) {  in ceph_mount()
959 		res = ERR_CAST(fsc);  in ceph_mount()
965 	err = ceph_mdsc_init(fsc);  in ceph_mount()
971 	if (ceph_test_opt(fsc->client, NOSHARE))  in ceph_mount()
973 	sb = sget(fs_type, compare_super, ceph_set_super, flags, fsc);  in ceph_mount()
979 	if (ceph_sb_to_client(sb) != fsc) {  in ceph_mount()
980 		ceph_mdsc_destroy(fsc);  in ceph_mount()
981 		destroy_fs_client(fsc);  in ceph_mount()
982 		fsc = ceph_sb_to_client(sb);  in ceph_mount()
983 		dout("get_sb got existing client %p\n", fsc);  in ceph_mount()
985 		dout("get_sb using new client %p\n", fsc);  in ceph_mount()
986 		err = ceph_register_bdi(sb, fsc);  in ceph_mount()
993 	res = ceph_real_mount(fsc, path);  in ceph_mount()
1001 	ceph_mdsc_close_sessions(fsc->mdsc);  in ceph_mount()
1006 	ceph_mdsc_destroy(fsc);  in ceph_mount()
1007 	destroy_fs_client(fsc);  in ceph_mount()
1015 	struct ceph_fs_client *fsc = ceph_sb_to_client(s);  in ceph_kill_sb()  local
1020 	ceph_mdsc_pre_umount(fsc->mdsc);  in ceph_kill_sb()
1022 	ceph_mdsc_destroy(fsc);  in ceph_kill_sb()
1024 	destroy_fs_client(fsc);  in ceph_kill_sb()