74 static void jfs_handle_error(struct super_block *sb)  in jfs_handle_error()  argument
76 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_handle_error()
78 	if (sb->s_flags & MS_RDONLY)  in jfs_handle_error()
81 	updateSuper(sb, FM_DIRTY);  in jfs_handle_error()
85 			sb->s_id);  in jfs_handle_error()
88 			sb->s_id);  in jfs_handle_error()
89 		sb->s_flags |= MS_RDONLY;  in jfs_handle_error()
95 void jfs_error(struct super_block *sb, const char *fmt, ...)  in jfs_error()  argument
106 	       sb->s_id, __builtin_return_address(0), &vaf);  in jfs_error()
110 	jfs_handle_error(sb);  in jfs_error()
113 static struct inode *jfs_alloc_inode(struct super_block *sb)  in jfs_alloc_inode()  argument
184 static void jfs_put_super(struct super_block *sb)  in jfs_put_super()  argument
186 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_put_super()
191 	dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);  in jfs_put_super()
193 	rc = jfs_umount(sb);  in jfs_put_super()
232 static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,  in parse_options()  argument
237 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in parse_options()
286 			*newLVSize = sb->s_bdev->bd_inode->i_size >>  in parse_options()
287 				sb->s_blocksize_bits;  in parse_options()
376 			struct request_queue *q = bdev_get_queue(sb->s_bdev);  in parse_options()
395 			struct request_queue *q = bdev_get_queue(sb->s_bdev);  in parse_options()
429 static int jfs_remount(struct super_block *sb, int *flags, char *data)  in jfs_remount()  argument
433 	int flag = JFS_SBI(sb)->flag;  in jfs_remount()
436 	sync_filesystem(sb);  in jfs_remount()
437 	if (!parse_options(data, sb, &newLVSize, &flag))  in jfs_remount()
441 		if (sb->s_flags & MS_RDONLY) {  in jfs_remount()
445 		rc = jfs_extendfs(sb, newLVSize, 0);  in jfs_remount()
450 	if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {  in jfs_remount()
455 		truncate_inode_pages(JFS_SBI(sb)->direct_inode->i_mapping, 0);  in jfs_remount()
457 		JFS_SBI(sb)->flag = flag;  in jfs_remount()
458 		ret = jfs_mount_rw(sb, 1);  in jfs_remount()
461 		sb->s_flags &= ~MS_RDONLY;  in jfs_remount()
463 		dquot_resume(sb, -1);  in jfs_remount()
466 	if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {  in jfs_remount()
467 		rc = dquot_suspend(sb, -1);  in jfs_remount()
470 		rc = jfs_umount_rw(sb);  in jfs_remount()
471 		JFS_SBI(sb)->flag = flag;  in jfs_remount()
474 	if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY))  in jfs_remount()
475 		if (!(sb->s_flags & MS_RDONLY)) {  in jfs_remount()
476 			rc = jfs_umount_rw(sb);  in jfs_remount()
480 			JFS_SBI(sb)->flag = flag;  in jfs_remount()
481 			ret = jfs_mount_rw(sb, 1);  in jfs_remount()
484 	JFS_SBI(sb)->flag = flag;  in jfs_remount()
489 static int jfs_fill_super(struct super_block *sb, void *data, int silent)  in jfs_fill_super()  argument
497 	jfs_info("In jfs_read_super: s_flags=0x%lx", sb->s_flags);  in jfs_fill_super()
503 	sb->s_fs_info = sbi;  in jfs_fill_super()
504 	sb->s_max_links = JFS_LINK_MAX;  in jfs_fill_super()
505 	sbi->sb = sb;  in jfs_fill_super()
513 	if (!parse_options((char *) data, sb, &newLVSize, &flag))  in jfs_fill_super()
518 	sb->s_flags |= MS_POSIXACL;  in jfs_fill_super()
529 	sb_set_blocksize(sb, PSIZE);  in jfs_fill_super()
534 	sb->s_op = &jfs_super_operations;  in jfs_fill_super()
535 	sb->s_export_op = &jfs_export_operations;  in jfs_fill_super()
536 	sb->s_xattr = jfs_xattr_handlers;  in jfs_fill_super()
538 	sb->dq_op = &dquot_operations;  in jfs_fill_super()
539 	sb->s_qcop = &dquot_quotactl_ops;  in jfs_fill_super()
540 	sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;  in jfs_fill_super()
546 	inode = new_inode(sb);  in jfs_fill_super()
552 	inode->i_size = sb->s_bdev->bd_inode->i_size;  in jfs_fill_super()
559 	rc = jfs_mount(sb);  in jfs_fill_super()
565 	if (sb->s_flags & MS_RDONLY)  in jfs_fill_super()
568 		rc = jfs_mount_rw(sb, 0);  in jfs_fill_super()
578 	sb->s_magic = JFS_SUPER_MAGIC;  in jfs_fill_super()
581 		sb->s_d_op = &jfs_ci_dentry_operations;  in jfs_fill_super()
583 	inode = jfs_iget(sb, ROOT_I);  in jfs_fill_super()
588 	sb->s_root = d_make_root(inode);  in jfs_fill_super()
589 	if (!sb->s_root)  in jfs_fill_super()
593 	sb->s_maxbytes = ((u64) sb->s_blocksize) << 40;  in jfs_fill_super()
599 	sb->s_maxbytes = min(((u64) PAGE_CACHE_SIZE << 32) - 1,  in jfs_fill_super()
600 			     (u64)sb->s_maxbytes);  in jfs_fill_super()
602 	sb->s_time_gran = 1;  in jfs_fill_super()
609 	rc = jfs_umount(sb);  in jfs_fill_super()
625 static int jfs_freeze(struct super_block *sb)  in jfs_freeze()  argument
627 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_freeze()
631 	if (!(sb->s_flags & MS_RDONLY)) {  in jfs_freeze()
632 		txQuiesce(sb);  in jfs_freeze()
635 			jfs_error(sb, "lmLogShutdown failed\n");  in jfs_freeze()
638 			txResume(sb);  in jfs_freeze()
642 		rc = updateSuper(sb, FM_CLEAN);  in jfs_freeze()
655 static int jfs_unfreeze(struct super_block *sb)  in jfs_unfreeze()  argument
657 	struct jfs_sb_info *sbi = JFS_SBI(sb);  in jfs_unfreeze()
661 	if (!(sb->s_flags & MS_RDONLY)) {  in jfs_unfreeze()
662 		rc = updateSuper(sb, FM_MOUNT);  in jfs_unfreeze()
664 			jfs_error(sb, "updateSuper failed\n");  in jfs_unfreeze()
669 			jfs_error(sb, "lmLogInit failed\n");  in jfs_unfreeze()
671 		txResume(sb);  in jfs_unfreeze()
682 static int jfs_sync_fs(struct super_block *sb, int wait)  in jfs_sync_fs()  argument
684 	struct jfs_log *log = JFS_SBI(sb)->log;  in jfs_sync_fs()
692 		dquot_writeback_dquots(sb, -1);  in jfs_sync_fs()
738 static ssize_t jfs_quota_read(struct super_block *sb, int type, char *data,  in jfs_quota_read()  argument
741 	struct inode *inode = sb_dqopt(sb)->files[type];  in jfs_quota_read()
742 	sector_t blk = off >> sb->s_blocksize_bits;  in jfs_quota_read()
744 	int offset = off & (sb->s_blocksize - 1);  in jfs_quota_read()
757 		tocopy = sb->s_blocksize - offset < toread ?  in jfs_quota_read()
758 				sb->s_blocksize - offset : toread;  in jfs_quota_read()
768 			bh = sb_bread(sb, tmp_bh.b_blocknr);  in jfs_quota_read()
783 static ssize_t jfs_quota_write(struct super_block *sb, int type,  in jfs_quota_write()  argument
786 	struct inode *inode = sb_dqopt(sb)->files[type];  in jfs_quota_write()
787 	sector_t blk = off >> sb->s_blocksize_bits;  in jfs_quota_write()
789 	int offset = off & (sb->s_blocksize - 1);  in jfs_quota_write()
797 		tocopy = sb->s_blocksize - offset < towrite ?  in jfs_quota_write()
798 				sb->s_blocksize - offset : towrite;  in jfs_quota_write()
805 		if (offset || tocopy != sb->s_blocksize)  in jfs_quota_write()
806 			bh = sb_bread(sb, tmp_bh.b_blocknr);  in jfs_quota_write()
808 			bh = sb_getblk(sb, tmp_bh.b_blocknr);  in jfs_quota_write()