63 static void jfs_handle_error(struct super_block *sb)  in jfs_handle_error()  argument
65 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_handle_error()
67 	if (sb_rdonly(sb))  in jfs_handle_error()
70 	updateSuper(sb, FM_DIRTY);  in jfs_handle_error()
74 			sb->s_id);  in jfs_handle_error()
77 			sb->s_id);  in jfs_handle_error()
78 		sb->s_flags |= SB_RDONLY;  in jfs_handle_error()
84 void jfs_error(struct super_block *sb, const char *fmt, ...)  in jfs_error()  argument
95 	       sb->s_id, __builtin_return_address(0), &vaf);  in jfs_error()
99 	jfs_handle_error(sb);  in jfs_error()
102 static struct inode *jfs_alloc_inode(struct super_block *sb)  in jfs_alloc_inode()  argument
158 static int jfs_quota_off(struct super_block *sb, int type);
159 static int jfs_quota_on(struct super_block *sb, int type, int format_id,
162 static void jfs_quota_off_umount(struct super_block *sb)  in jfs_quota_off_umount()  argument
167 		jfs_quota_off(sb, type);  in jfs_quota_off_umount()
181 static inline void jfs_quota_off_umount(struct super_block *sb)  in jfs_quota_off_umount()  argument
186 static void jfs_put_super(struct super_block *sb)  in jfs_put_super()  argument
188 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_put_super()
193 	jfs_quota_off_umount(sb);  in jfs_put_super()
195 	rc = jfs_umount(sb);  in jfs_put_super()
234 static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,  in parse_options()  argument
239 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in parse_options()
288 			*newLVSize = i_size_read(sb->s_bdev->bd_inode) >>  in parse_options()
289 				sb->s_blocksize_bits;  in parse_options()
378 			struct request_queue *q = bdev_get_queue(sb->s_bdev);  in parse_options()
397 			struct request_queue *q = bdev_get_queue(sb->s_bdev);  in parse_options()
431 static int jfs_remount(struct super_block *sb, int *flags, char *data)  in jfs_remount()  argument
435 	int flag = JFS_SBI(sb)->flag;  in jfs_remount()
438 	sync_filesystem(sb);  in jfs_remount()
439 	if (!parse_options(data, sb, &newLVSize, &flag))  in jfs_remount()
443 		if (sb_rdonly(sb)) {  in jfs_remount()
447 		rc = jfs_extendfs(sb, newLVSize, 0);  in jfs_remount()
452 	if (sb_rdonly(sb) && !(*flags & SB_RDONLY)) {  in jfs_remount()
457 		truncate_inode_pages(JFS_SBI(sb)->direct_inode->i_mapping, 0);  in jfs_remount()
459 		JFS_SBI(sb)->flag = flag;  in jfs_remount()
460 		ret = jfs_mount_rw(sb, 1);  in jfs_remount()
463 		sb->s_flags &= ~SB_RDONLY;  in jfs_remount()
465 		dquot_resume(sb, -1);  in jfs_remount()
468 	if (!sb_rdonly(sb) && (*flags & SB_RDONLY)) {  in jfs_remount()
469 		rc = dquot_suspend(sb, -1);  in jfs_remount()
472 		rc = jfs_umount_rw(sb);  in jfs_remount()
473 		JFS_SBI(sb)->flag = flag;  in jfs_remount()
476 	if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY))  in jfs_remount()
477 		if (!sb_rdonly(sb)) {  in jfs_remount()
478 			rc = jfs_umount_rw(sb);  in jfs_remount()
482 			JFS_SBI(sb)->flag = flag;  in jfs_remount()
483 			ret = jfs_mount_rw(sb, 1);  in jfs_remount()
486 	JFS_SBI(sb)->flag = flag;  in jfs_remount()
491 static int jfs_fill_super(struct super_block *sb, void *data, int silent)  in jfs_fill_super()  argument
499 	jfs_info("In jfs_read_super: s_flags=0x%lx", sb->s_flags);  in jfs_fill_super()
505 	sb->s_fs_info = sbi;  in jfs_fill_super()
506 	sb->s_max_links = JFS_LINK_MAX;  in jfs_fill_super()
507 	sb->s_time_min = 0;  in jfs_fill_super()
508 	sb->s_time_max = U32_MAX;  in jfs_fill_super()
509 	sbi->sb = sb;  in jfs_fill_super()
517 	if (!parse_options((char *) data, sb, &newLVSize, &flag))  in jfs_fill_super()
522 	sb->s_flags |= SB_POSIXACL;  in jfs_fill_super()
533 	sb_set_blocksize(sb, PSIZE);  in jfs_fill_super()
538 	sb->s_op = &jfs_super_operations;  in jfs_fill_super()
539 	sb->s_export_op = &jfs_export_operations;  in jfs_fill_super()
540 	sb->s_xattr = jfs_xattr_handlers;  in jfs_fill_super()
542 	sb->dq_op = &dquot_operations;  in jfs_fill_super()
543 	sb->s_qcop = &jfs_quotactl_ops;  in jfs_fill_super()
544 	sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;  in jfs_fill_super()
550 	inode = new_inode(sb);  in jfs_fill_super()
556 	inode->i_size = i_size_read(sb->s_bdev->bd_inode);  in jfs_fill_super()
563 	rc = jfs_mount(sb);  in jfs_fill_super()
569 	if (sb_rdonly(sb))  in jfs_fill_super()
572 		rc = jfs_mount_rw(sb, 0);  in jfs_fill_super()
582 	sb->s_magic = JFS_SUPER_MAGIC;  in jfs_fill_super()
585 		sb->s_d_op = &jfs_ci_dentry_operations;  in jfs_fill_super()
587 	inode = jfs_iget(sb, ROOT_I);  in jfs_fill_super()
592 	sb->s_root = d_make_root(inode);  in jfs_fill_super()
593 	if (!sb->s_root)  in jfs_fill_super()
599 	sb->s_maxbytes = min(((loff_t)sb->s_blocksize) << 40, MAX_LFS_FILESIZE);  in jfs_fill_super()
600 	sb->s_time_gran = 1;  in jfs_fill_super()
607 	rc = jfs_umount(sb);  in jfs_fill_super()
623 static int jfs_freeze(struct super_block *sb)  in jfs_freeze()  argument
625 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_freeze()
629 	if (!sb_rdonly(sb)) {  in jfs_freeze()
630 		txQuiesce(sb);  in jfs_freeze()
633 			jfs_error(sb, "lmLogShutdown failed\n");  in jfs_freeze()
636 			txResume(sb);  in jfs_freeze()
640 		rc = updateSuper(sb, FM_CLEAN);  in jfs_freeze()
653 static int jfs_unfreeze(struct super_block *sb)  in jfs_unfreeze()  argument
655 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_unfreeze()
659 	if (!sb_rdonly(sb)) {  in jfs_unfreeze()
660 		rc = updateSuper(sb, FM_MOUNT);  in jfs_unfreeze()
662 			jfs_error(sb, "updateSuper failed\n");  in jfs_unfreeze()
667 			jfs_error(sb, "lmLogInit failed\n");  in jfs_unfreeze()
669 		txResume(sb);  in jfs_unfreeze()
680 static int jfs_sync_fs(struct super_block *sb, int wait)  in jfs_sync_fs()  argument
682 	struct jfs_log *log = JFS_SBI(sb)->log;  in jfs_sync_fs()
690 		dquot_writeback_dquots(sb, -1);  in jfs_sync_fs()
736 static ssize_t jfs_quota_read(struct super_block *sb, int type, char *data,  in jfs_quota_read()  argument
739 	struct inode *inode = sb_dqopt(sb)->files[type];  in jfs_quota_read()
740 	sector_t blk = off >> sb->s_blocksize_bits;  in jfs_quota_read()
742 	int offset = off & (sb->s_blocksize - 1);  in jfs_quota_read()
755 		tocopy = sb->s_blocksize - offset < toread ?  in jfs_quota_read()
756 				sb->s_blocksize - offset : toread;  in jfs_quota_read()
766 			bh = sb_bread(sb, tmp_bh.b_blocknr);  in jfs_quota_read()
781 static ssize_t jfs_quota_write(struct super_block *sb, int type,  in jfs_quota_write()  argument
784 	struct inode *inode = sb_dqopt(sb)->files[type];  in jfs_quota_write()
785 	sector_t blk = off >> sb->s_blocksize_bits;  in jfs_quota_write()
787 	int offset = off & (sb->s_blocksize - 1);  in jfs_quota_write()
795 		tocopy = sb->s_blocksize - offset < towrite ?  in jfs_quota_write()
796 				sb->s_blocksize - offset : towrite;  in jfs_quota_write()
803 		if (offset || tocopy != sb->s_blocksize)  in jfs_quota_write()
804 			bh = sb_bread(sb, tmp_bh.b_blocknr);  in jfs_quota_write()
806 			bh = sb_getblk(sb, tmp_bh.b_blocknr);  in jfs_quota_write()
841 static int jfs_quota_on(struct super_block *sb, int type, int format_id,  in jfs_quota_on()  argument
847 	err = dquot_quota_on(sb, type, format_id, path);  in jfs_quota_on()
862 static int jfs_quota_off(struct super_block *sb, int type)  in jfs_quota_off()  argument
864 	struct inode *inode = sb_dqopt(sb)->files[type];  in jfs_quota_off()
870 	err = dquot_quota_off(sb, type);  in jfs_quota_off()
883 	return dquot_quota_off(sb, type);  in jfs_quota_off()