75 static int nilfs_setup_super(struct super_block *sb, int is_mount);
76 static int nilfs_remount(struct super_block *sb, int *flags, char *data);
78 static void nilfs_set_error(struct super_block *sb)  in nilfs_set_error()  argument
80 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_set_error()
86 		sbp = nilfs_prepare_super(sb, 0);  in nilfs_set_error()
91 			nilfs_commit_super(sb, NILFS_SB_COMMIT_ALL);  in nilfs_set_error()
109 void nilfs_error(struct super_block *sb, const char *function,  in nilfs_error()  argument
112 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_error()
122 	       sb->s_id, function, &vaf);  in nilfs_error()
126 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_error()
127 		nilfs_set_error(sb);  in nilfs_error()
131 			sb->s_flags |= MS_RDONLY;  in nilfs_error()
137 		      sb->s_id);  in nilfs_error()
140 void nilfs_warning(struct super_block *sb, const char *function,  in nilfs_warning()  argument
152 	       sb->s_id, function, &vaf);  in nilfs_warning()
158 struct inode *nilfs_alloc_inode(struct super_block *sb)  in nilfs_alloc_inode()  argument
190 static int nilfs_sync_super(struct super_block *sb, int flag)  in nilfs_sync_super()  argument
192 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_sync_super()
264 struct nilfs_super_block **nilfs_prepare_super(struct super_block *sb,  in nilfs_prepare_super()  argument
267 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_prepare_super()
277 			       sb->s_id);  in nilfs_prepare_super()
291 int nilfs_commit_super(struct super_block *sb, int flag)  in nilfs_commit_super()  argument
293 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_commit_super()
316 	return nilfs_sync_super(sb, flag);  in nilfs_commit_super()
327 int nilfs_cleanup_super(struct super_block *sb)  in nilfs_cleanup_super()  argument
329 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_cleanup_super()
334 	sbp = nilfs_prepare_super(sb, 0);  in nilfs_cleanup_super()
347 		ret = nilfs_commit_super(sb, flag);  in nilfs_cleanup_super()
357 static int nilfs_move_2nd_super(struct super_block *sb, loff_t sb2off)  in nilfs_move_2nd_super()  argument
359 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_move_2nd_super()
382 	nsbh = sb_getblk(sb, newblocknr);  in nilfs_move_2nd_super()
414 int nilfs_resize_fs(struct super_block *sb, __u64 newsize)  in nilfs_resize_fs()  argument
416 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_resize_fs()
423 	devsize = i_size_read(sb->s_bdev->bd_inode);  in nilfs_resize_fs()
443 	ret = nilfs_construct_segment(sb);  in nilfs_resize_fs()
448 	nilfs_move_2nd_super(sb, sb2off);  in nilfs_resize_fs()
450 	sbp = nilfs_prepare_super(sb, 0);  in nilfs_resize_fs()
464 		ret = nilfs_commit_super(sb, NILFS_SB_COMMIT_ALL);  in nilfs_resize_fs()
480 static void nilfs_put_super(struct super_block *sb)  in nilfs_put_super()  argument
482 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_put_super()
484 	nilfs_detach_log_writer(sb);  in nilfs_put_super()
486 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_put_super()
488 		nilfs_cleanup_super(sb);  in nilfs_put_super()
497 	sb->s_fs_info = NULL;  in nilfs_put_super()
500 static int nilfs_sync_fs(struct super_block *sb, int wait)  in nilfs_sync_fs()  argument
502 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_sync_fs()
508 		err = nilfs_construct_segment(sb);  in nilfs_sync_fs()
512 		sbp = nilfs_prepare_super(sb, nilfs_sb_will_flip(nilfs));  in nilfs_sync_fs()
515 			nilfs_commit_super(sb, NILFS_SB_COMMIT);  in nilfs_sync_fs()
526 int nilfs_attach_checkpoint(struct super_block *sb, __u64 cno, int curr_mnt,  in nilfs_attach_checkpoint()  argument
529 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_attach_checkpoint()
558 	err = nilfs_ifile_read(sb, root, nilfs->ns_inode_size,  in nilfs_attach_checkpoint()
582 static int nilfs_freeze(struct super_block *sb)  in nilfs_freeze()  argument
584 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_freeze()
587 	if (sb->s_flags & MS_RDONLY)  in nilfs_freeze()
592 	err = nilfs_cleanup_super(sb);  in nilfs_freeze()
597 static int nilfs_unfreeze(struct super_block *sb)  in nilfs_unfreeze()  argument
599 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_unfreeze()
601 	if (sb->s_flags & MS_RDONLY)  in nilfs_unfreeze()
605 	nilfs_setup_super(sb, false);  in nilfs_unfreeze()
612 	struct super_block *sb = dentry->d_sb;  in nilfs_statfs()  local
615 	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);  in nilfs_statfs()
666 	buf->f_bsize = sb->s_blocksize;  in nilfs_statfs()
682 	struct super_block *sb = dentry->d_sb;  in nilfs_show_options()  local
683 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_show_options()
738 static int parse_options(char *options, struct super_block *sb, int is_remount)  in parse_options()  argument
740 	struct the_nilfs *nilfs = sb->s_fs_info;  in parse_options()
806 nilfs_set_default_options(struct super_block *sb,  in nilfs_set_default_options()  argument
809 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_set_default_options()
815 static int nilfs_setup_super(struct super_block *sb, int is_mount)  in nilfs_setup_super()  argument
817 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_setup_super()
823 	sbp = nilfs_prepare_super(sb, 0);  in nilfs_setup_super()
854 	return nilfs_commit_super(sb, NILFS_SB_COMMIT_ALL);  in nilfs_setup_super()
857 struct nilfs_super_block *nilfs_read_super_block(struct super_block *sb,  in nilfs_read_super_block()  argument
865 	*pbh = sb_bread(sb, sb_index);  in nilfs_read_super_block()
871 int nilfs_store_magic_and_option(struct super_block *sb,  in nilfs_store_magic_and_option()  argument
875 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_store_magic_and_option()
877 	sb->s_magic = le16_to_cpu(sbp->s_magic);  in nilfs_store_magic_and_option()
881 	sb->s_flags |= MS_NOATIME;  in nilfs_store_magic_and_option()
884 	nilfs_set_default_options(sb, sbp);  in nilfs_store_magic_and_option()
891 	return !parse_options(data, sb, 0) ? -EINVAL : 0 ;  in nilfs_store_magic_and_option()
894 int nilfs_check_feature_compatibility(struct super_block *sb,  in nilfs_check_feature_compatibility()  argument
909 	if (!(sb->s_flags & MS_RDONLY) && features) {  in nilfs_check_feature_compatibility()
918 static int nilfs_get_root_dentry(struct super_block *sb,  in nilfs_get_root_dentry()  argument
926 	inode = nilfs_iget(sb, root, NILFS_ROOT_INO);  in nilfs_get_root_dentry()
1015 int nilfs_checkpoint_is_mounted(struct super_block *sb, __u64 cno)  in nilfs_checkpoint_is_mounted()  argument
1017 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_checkpoint_is_mounted()
1032 		inode = nilfs_ilookup(sb, root, NILFS_ROOT_INO);  in nilfs_checkpoint_is_mounted()
1056 nilfs_fill_super(struct super_block *sb, void *data, int silent)  in nilfs_fill_super()  argument
1063 	nilfs = alloc_nilfs(sb->s_bdev);  in nilfs_fill_super()
1067 	sb->s_fs_info = nilfs;  in nilfs_fill_super()
1069 	err = init_nilfs(nilfs, sb, (char *)data);  in nilfs_fill_super()
1073 	sb->s_op = &nilfs_sops;  in nilfs_fill_super()
1074 	sb->s_export_op = &nilfs_export_ops;  in nilfs_fill_super()
1075 	sb->s_root = NULL;  in nilfs_fill_super()
1076 	sb->s_time_gran = 1;  in nilfs_fill_super()
1077 	sb->s_max_links = NILFS_LINK_MAX;  in nilfs_fill_super()
1079 	sb->s_bdi = &bdev_get_queue(sb->s_bdev)->backing_dev_info;  in nilfs_fill_super()
1081 	err = load_nilfs(nilfs, sb);  in nilfs_fill_super()
1086 	err = nilfs_attach_checkpoint(sb, cno, true, &fsroot);  in nilfs_fill_super()
1093 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_fill_super()
1094 		err = nilfs_attach_log_writer(sb, fsroot);  in nilfs_fill_super()
1099 	err = nilfs_get_root_dentry(sb, fsroot, &sb->s_root);  in nilfs_fill_super()
1105 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_fill_super()
1107 		nilfs_setup_super(sb, true);  in nilfs_fill_super()
1114 	nilfs_detach_log_writer(sb);  in nilfs_fill_super()
1129 static int nilfs_remount(struct super_block *sb, int *flags, char *data)  in nilfs_remount()  argument
1131 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_remount()
1136 	sync_filesystem(sb);  in nilfs_remount()
1137 	old_sb_flags = sb->s_flags;  in nilfs_remount()
1140 	if (!parse_options(data, sb, 1)) {  in nilfs_remount()
1144 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL);  in nilfs_remount()
1151 		       "incomplete recovery state.\n", sb->s_id);  in nilfs_remount()
1155 	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))  in nilfs_remount()
1159 		nilfs_detach_log_writer(sb);  in nilfs_remount()
1160 		sb->s_flags |= MS_RDONLY;  in nilfs_remount()
1167 		nilfs_cleanup_super(sb);  in nilfs_remount()
1186 			       sb->s_id, (unsigned long long)features);  in nilfs_remount()
1191 		sb->s_flags &= ~MS_RDONLY;  in nilfs_remount()
1193 		root = NILFS_I(d_inode(sb->s_root))->i_root;  in nilfs_remount()
1194 		err = nilfs_attach_log_writer(sb, root);  in nilfs_remount()
1199 		nilfs_setup_super(sb, true);  in nilfs_remount()
1206 	sb->s_flags = old_sb_flags;  in nilfs_remount()