106 static int ocfs2_parse_options(struct super_block *sb, char *options,
109 static int ocfs2_check_set_options(struct super_block *sb,
112 static void ocfs2_put_super(struct super_block *sb);
113 static int ocfs2_mount_volume(struct super_block *sb);
114 static int ocfs2_remount(struct super_block *sb, int *flags, char *data);
115 static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err);
122 static int ocfs2_sync_fs(struct super_block *sb, int wait);
132 static int ocfs2_initialize_super(struct super_block *sb,
136 static int ocfs2_get_sector(struct super_block *sb,
140 static struct inode *ocfs2_alloc_inode(struct super_block *sb);
251 			osb->sb->s_blocksize, osb->s_clustersize);  in ocfs2_osb_dump()
412 static int ocfs2_sync_fs(struct super_block *sb, int wait)  in ocfs2_sync_fs()  argument
416 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_sync_fs()
429 	if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal,  in ocfs2_sync_fs()
432 			jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal,  in ocfs2_sync_fs()
440 	if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)  in ocfs2_need_system_inode()
444 	if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)  in ocfs2_need_system_inode()
566 static struct inode *ocfs2_alloc_inode(struct super_block *sb)  in ocfs2_alloc_inode()  argument
640 static int ocfs2_remount(struct super_block *sb, int *flags, char *data)  in ocfs2_remount()  argument
645 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_remount()
648 	sync_filesystem(sb);  in ocfs2_remount()
650 	if (!ocfs2_parse_options(sb, data, &parsed_options, 1) ||  in ocfs2_remount()
651 	    !ocfs2_check_set_options(sb, &parsed_options)) {  in ocfs2_remount()
681 	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {  in ocfs2_remount()
698 			sb->s_flags |= MS_RDONLY;  in ocfs2_remount()
707 			incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP);  in ocfs2_remount()
715 			sb->s_flags &= ~MS_RDONLY;  in ocfs2_remount()
718 		trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags);  in ocfs2_remount()
723 			if (sb_any_quota_suspended(sb))  in ocfs2_remount()
730 				sb->s_flags |= MS_RDONLY;  in ocfs2_remount()
750 		sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |  in ocfs2_remount()
758 static int ocfs2_sb_probe(struct super_block *sb,  in ocfs2_sb_probe()  argument
771 	*sector_size = bdev_logical_block_size(sb->s_bdev);  in ocfs2_sb_probe()
784 	status = ocfs2_get_sector(sb, bh, 0, *sector_size);  in ocfs2_sb_probe()
818 		tmpstat = ocfs2_get_sector(sb, bh,  in ocfs2_sb_probe()
912 	struct super_block *sb = osb->sb;  in ocfs2_susp_quotas()  local
919 		if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type]))  in ocfs2_susp_quotas()
922 			status = dquot_resume(sb, type);  in ocfs2_susp_quotas()
927 			oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_susp_quotas()
929 			status = dquot_suspend(sb, type);  in ocfs2_susp_quotas()
943 	struct super_block *sb = osb->sb;  in ocfs2_enable_quotas()  local
953 	sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE;  in ocfs2_enable_quotas()
955 		if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type]))  in ocfs2_enable_quotas()
984 	struct super_block *sb = osb->sb;  in ocfs2_disable_quotas()  local
990 		if (!sb_has_quota_loaded(sb, type))  in ocfs2_disable_quotas()
993 		oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_disable_quotas()
995 		inode = igrab(sb->s_dquot.files[type]);  in ocfs2_disable_quotas()
999 		dquot_disable(sb, type, DQUOT_USAGE_ENABLED |  in ocfs2_disable_quotas()
1007 static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)  in ocfs2_fill_super()  argument
1018 	trace_ocfs2_fill_super(sb, data, silent);  in ocfs2_fill_super()
1020 	if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) {  in ocfs2_fill_super()
1026 	status = ocfs2_sb_probe(sb, &bh, &sector_size, &stats);  in ocfs2_fill_super()
1032 	status = ocfs2_initialize_super(sb, bh, sector_size, &stats);  in ocfs2_fill_super()
1033 	osb = OCFS2_SB(sb);  in ocfs2_fill_super()
1041 	if (!ocfs2_check_set_options(sb, &parsed_options)) {  in ocfs2_fill_super()
1062 	sb->s_magic = OCFS2_SUPER_MAGIC;  in ocfs2_fill_super()
1064 	sb->s_flags = (sb->s_flags & ~(MS_POSIXACL | MS_NOSEC)) |  in ocfs2_fill_super()
1069 	if (bdev_read_only(sb->s_bdev)) {  in ocfs2_fill_super()
1070 		if (!(sb->s_flags & MS_RDONLY)) {  in ocfs2_fill_super()
1105 		if (sb->s_flags & MS_RDONLY)  in ocfs2_fill_super()
1145 	status = ocfs2_mount_volume(sb);  in ocfs2_fill_super()
1165 	sb->s_root = root;  in ocfs2_fill_super()
1186 	if (!(sb->s_flags & MS_RDONLY)) {  in ocfs2_fill_super()
1215 		ocfs2_dismount_volume(sb, 1);  in ocfs2_fill_super()
1241 static int ocfs2_check_set_options(struct super_block *sb,  in ocfs2_check_set_options()  argument
1245 	    !OCFS2_HAS_RO_COMPAT_FEATURE(sb,  in ocfs2_check_set_options()
1252 	    !OCFS2_HAS_RO_COMPAT_FEATURE(sb,  in ocfs2_check_set_options()
1259 	    !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) {  in ocfs2_check_set_options()
1267 		if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR))  in ocfs2_check_set_options()
1275 static int ocfs2_parse_options(struct super_block *sb,  in ocfs2_parse_options()  argument
1668 static void ocfs2_put_super(struct super_block *sb)  in ocfs2_put_super()  argument
1670 	trace_ocfs2_put_super(sb);  in ocfs2_put_super()
1672 	ocfs2_sync_blockdev(sb);  in ocfs2_put_super()
1673 	ocfs2_dismount_volume(sb, 0);  in ocfs2_put_super()
1713 			(osb->s_clustersize >> osb->sb->s_blocksize_bits);  in ocfs2_statfs()
1715 		       (osb->s_clustersize >> osb->sb->s_blocksize_bits);  in ocfs2_statfs()
1821 static int ocfs2_get_sector(struct super_block *sb,  in ocfs2_get_sector()  argument
1826 	if (!sb_set_blocksize(sb, sect_size)) {  in ocfs2_get_sector()
1831 	*bh = sb_getblk(sb, block);  in ocfs2_get_sector()
1852 static int ocfs2_mount_volume(struct super_block *sb)  in ocfs2_mount_volume()  argument
1856 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_mount_volume()
1905 static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)  in ocfs2_dismount_volume()  argument
1911 	trace_ocfs2_dismount_volume(sb);  in ocfs2_dismount_volume()
1913 	BUG_ON(!sb);  in ocfs2_dismount_volume()
1914 	osb = OCFS2_SB(sb);  in ocfs2_dismount_volume()
1938 	ocfs2_sync_blockdev(sb);  in ocfs2_dismount_volume()
1991 	sb->s_dev = 0;  in ocfs2_dismount_volume()
1992 	sb->s_fs_info = NULL;  in ocfs2_dismount_volume()
2026 		ocfs2_clusters_to_blocks(osb->sb,  in ocfs2_journal_addressable()
2035 	if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb,  in ocfs2_journal_addressable()
2049 static int ocfs2_initialize_super(struct super_block *sb,  in ocfs2_initialize_super()  argument
2069 	sb->s_fs_info = osb;  in ocfs2_initialize_super()
2070 	sb->s_op = &ocfs2_sops;  in ocfs2_initialize_super()
2071 	sb->s_d_op = &ocfs2_dentry_ops;  in ocfs2_initialize_super()
2072 	sb->s_export_op = &ocfs2_export_ops;  in ocfs2_initialize_super()
2073 	sb->s_qcop = &dquot_quotactl_sysfile_ops;  in ocfs2_initialize_super()
2074 	sb->dq_op = &ocfs2_quota_operations;  in ocfs2_initialize_super()
2075 	sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;  in ocfs2_initialize_super()
2076 	sb->s_xattr = ocfs2_xattr_handlers;  in ocfs2_initialize_super()
2077 	sb->s_time_gran = 1;  in ocfs2_initialize_super()
2078 	sb->s_flags |= MS_NOATIME;  in ocfs2_initialize_super()
2082 	sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits);  in ocfs2_initialize_super()
2083 	memcpy(sb->s_uuid, di->id2.i_super.s_uuid,  in ocfs2_initialize_super()
2092 	osb->sb = sb;  in ocfs2_initialize_super()
2121 		 MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev));  in ocfs2_initialize_super()
2196 	if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) {  in ocfs2_initialize_super()
2202 	if (!(osb->sb->s_flags & MS_RDONLY) &&  in ocfs2_initialize_super()
2203 	    (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) {  in ocfs2_initialize_super()
2278 	total_blocks = ocfs2_clusters_to_blocks(osb->sb,  in ocfs2_initialize_super()
2281 	status = generic_check_addressable(osb->sb->s_blocksize_bits,  in ocfs2_initialize_super()
2341 	osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0,  in ocfs2_initialize_super()
2349 	cleancache_init_shared_fs(sb);  in ocfs2_initialize_super()
2561 static int ocfs2_handle_error(struct super_block *sb)  in ocfs2_handle_error()  argument
2563 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_handle_error()
2572 		      sb->s_id);  in ocfs2_handle_error()
2578 		if (sb->s_flags & MS_RDONLY &&  in ocfs2_handle_error()
2584 		sb->s_flags |= MS_RDONLY;  in ocfs2_handle_error()
2591 int __ocfs2_error(struct super_block *sb, const char *function,  in __ocfs2_error()  argument
2604 	       sb->s_id, function, &vaf);  in __ocfs2_error()
2608 	return ocfs2_handle_error(sb);  in __ocfs2_error()
2614 void __ocfs2_abort(struct super_block *sb, const char *function,  in __ocfs2_abort()  argument
2626 	       sb->s_id, function, &vaf);  in __ocfs2_abort()
2641 	if (!ocfs2_mount_local(OCFS2_SB(sb)))  in __ocfs2_abort()
2642 		OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC;  in __ocfs2_abort()
2643 	ocfs2_handle_error(sb);  in __ocfs2_abort()