44 static int ufs_block_to_path(struct inode *inode, sector_t i_block, unsigned offsets[4])  in ufs_block_to_path()  argument
46 	struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;  in ufs_block_to_path()
71 		ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");  in ufs_block_to_path()
122 static u64 ufs_frag_map(struct inode *inode, unsigned offsets[4], int depth)  in ufs_frag_map()  argument
124 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_frag_map()
125 	struct super_block *sb = inode->i_sb;  in ufs_frag_map()
219 ufs_extend_tail(struct inode *inode, u64 writes_to,  in ufs_extend_tail()  argument
222 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_extend_tail()
223 	struct super_block *sb = inode->i_sb;  in ufs_extend_tail()
237 	tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),  in ufs_extend_tail()
252 ufs_inode_getfrag(struct inode *inode, unsigned index,  in ufs_inode_getfrag()  argument
256 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_inode_getfrag()
257 	struct super_block *sb = inode->i_sb;  in ufs_inode_getfrag()
286 	tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),  in ufs_inode_getfrag()
296 	inode->i_ctime = CURRENT_TIME_SEC;  in ufs_inode_getfrag()
297 	if (IS_SYNC(inode))  in ufs_inode_getfrag()
298 		ufs_sync_inode (inode);  in ufs_inode_getfrag()
299 	mark_inode_dirty(inode);  in ufs_inode_getfrag()
331 ufs_inode_getblock(struct inode *inode, u64 ind_block,  in ufs_inode_getblock()  argument
335 	struct super_block *sb = inode->i_sb;  in ufs_inode_getblock()
367 	tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,  in ufs_inode_getblock()
376 	if (IS_SYNC(inode))  in ufs_inode_getblock()
378 	inode->i_ctime = CURRENT_TIME_SEC;  in ufs_inode_getblock()
379 	mark_inode_dirty(inode);  in ufs_inode_getblock()
393 static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result,…  in ufs_getfrag_block()  argument
395 	struct super_block *sb = inode->i_sb;  in ufs_getfrag_block()
399 	int depth = ufs_block_to_path(inode, fragment >> uspi->s_fpbshift, offsets);  in ufs_getfrag_block()
404 		phys64 = ufs_frag_map(inode, offsets, depth);  in ufs_getfrag_block()
410 	mutex_lock(&UFS_I(inode)->truncate_mutex);  in ufs_getfrag_block()
412 	UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);  in ufs_getfrag_block()
419 	if (UFS_I(inode)->i_lastfrag < UFS_NDIR_FRAGMENT) {  in ufs_getfrag_block()
420 		unsigned lastfrag = UFS_I(inode)->i_lastfrag;  in ufs_getfrag_block()
423 			if (!ufs_extend_tail(inode, fragment,  in ufs_getfrag_block()
430 		phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,  in ufs_getfrag_block()
434 		phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,  in ufs_getfrag_block()
437 			phys64 = ufs_inode_getblock(inode, phys64, offsets[i],  in ufs_getfrag_block()
439 		phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 1],  in ufs_getfrag_block()
449 	mutex_unlock(&UFS_I(inode)->truncate_mutex);  in ufs_getfrag_block()
468 static void ufs_truncate_blocks(struct inode *);
472 	struct inode *inode = mapping->host;  in ufs_write_failed()  local
474 	if (to > inode->i_size) {  in ufs_write_failed()
475 		truncate_pagecache(inode, inode->i_size);  in ufs_write_failed()
476 		ufs_truncate_blocks(inode);  in ufs_write_failed()
519 static void ufs_set_inode_ops(struct inode *inode)  in ufs_set_inode_ops()  argument
521 	if (S_ISREG(inode->i_mode)) {  in ufs_set_inode_ops()
522 		inode->i_op = &ufs_file_inode_operations;  in ufs_set_inode_ops()
523 		inode->i_fop = &ufs_file_operations;  in ufs_set_inode_ops()
524 		inode->i_mapping->a_ops = &ufs_aops;  in ufs_set_inode_ops()
525 	} else if (S_ISDIR(inode->i_mode)) {  in ufs_set_inode_ops()
526 		inode->i_op = &ufs_dir_inode_operations;  in ufs_set_inode_ops()
527 		inode->i_fop = &ufs_dir_operations;  in ufs_set_inode_ops()
528 		inode->i_mapping->a_ops = &ufs_aops;  in ufs_set_inode_ops()
529 	} else if (S_ISLNK(inode->i_mode)) {  in ufs_set_inode_ops()
530 		if (!inode->i_blocks) {  in ufs_set_inode_ops()
531 			inode->i_op = &ufs_fast_symlink_inode_operations;  in ufs_set_inode_ops()
532 			inode->i_link = (char *)UFS_I(inode)->i_u1.i_symlink;  in ufs_set_inode_ops()
534 			inode->i_op = &ufs_symlink_inode_operations;  in ufs_set_inode_ops()
535 			inode->i_mapping->a_ops = &ufs_aops;  in ufs_set_inode_ops()
538 		init_special_inode(inode, inode->i_mode,  in ufs_set_inode_ops()
539 				   ufs_get_inode_dev(inode->i_sb, UFS_I(inode)));  in ufs_set_inode_ops()
542 static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)  in ufs1_read_inode()  argument
544 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs1_read_inode()
545 	struct super_block *sb = inode->i_sb;  in ufs1_read_inode()
551 	inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);  in ufs1_read_inode()
552 	set_nlink(inode, fs16_to_cpu(sb, ufs_inode->ui_nlink));  in ufs1_read_inode()
553 	if (inode->i_nlink == 0) {  in ufs1_read_inode()
554 		ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);  in ufs1_read_inode()
561 	i_uid_write(inode, ufs_get_inode_uid(sb, ufs_inode));  in ufs1_read_inode()
562 	i_gid_write(inode, ufs_get_inode_gid(sb, ufs_inode));  in ufs1_read_inode()
564 	inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);  in ufs1_read_inode()
565 	inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec);  in ufs1_read_inode()
566 	inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec);  in ufs1_read_inode()
567 	inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);  in ufs1_read_inode()
568 	inode->i_mtime.tv_nsec = 0;  in ufs1_read_inode()
569 	inode->i_atime.tv_nsec = 0;  in ufs1_read_inode()
570 	inode->i_ctime.tv_nsec = 0;  in ufs1_read_inode()
571 	inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);  in ufs1_read_inode()
572 	inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen);  in ufs1_read_inode()
578 	if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {  in ufs1_read_inode()
589 static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)  in ufs2_read_inode()  argument
591 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs2_read_inode()
592 	struct super_block *sb = inode->i_sb;  in ufs2_read_inode()
595 	UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);  in ufs2_read_inode()
599 	inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);  in ufs2_read_inode()
600 	set_nlink(inode, fs16_to_cpu(sb, ufs2_inode->ui_nlink));  in ufs2_read_inode()
601 	if (inode->i_nlink == 0) {  in ufs2_read_inode()
602 		ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);  in ufs2_read_inode()
609 	i_uid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_uid));  in ufs2_read_inode()
610 	i_gid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_gid));  in ufs2_read_inode()
612 	inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);  in ufs2_read_inode()
613 	inode->i_atime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_atime);  in ufs2_read_inode()
614 	inode->i_ctime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_ctime);  in ufs2_read_inode()
615 	inode->i_mtime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_mtime);  in ufs2_read_inode()
616 	inode->i_atime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_atimensec);  in ufs2_read_inode()
617 	inode->i_ctime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_ctimensec);  in ufs2_read_inode()
618 	inode->i_mtime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_mtimensec);  in ufs2_read_inode()
619 	inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);  in ufs2_read_inode()
620 	inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen);  in ufs2_read_inode()
627 	if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {  in ufs2_read_inode()
638 struct inode *ufs_iget(struct super_block *sb, unsigned long ino)  in ufs_iget()
643 	struct inode *inode;  in ufs_iget()  local
654 	inode = iget_locked(sb, ino);  in ufs_iget()
655 	if (!inode)  in ufs_iget()
657 	if (!(inode->i_state & I_NEW))  in ufs_iget()
658 		return inode;  in ufs_iget()
660 	ufsi = UFS_I(inode);  in ufs_iget()
662 	bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));  in ufs_iget()
665 			    inode->i_ino);  in ufs_iget()
671 		err = ufs2_read_inode(inode,  in ufs_iget()
672 				      ufs2_inode + ufs_inotofsbo(inode->i_ino));  in ufs_iget()
676 		err = ufs1_read_inode(inode,  in ufs_iget()
677 				      ufs_inode + ufs_inotofsbo(inode->i_ino));  in ufs_iget()
682 	inode->i_version++;  in ufs_iget()
684 		(inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;  in ufs_iget()
688 	ufs_set_inode_ops(inode);  in ufs_iget()
693 	unlock_new_inode(inode);  in ufs_iget()
694 	return inode;  in ufs_iget()
697 	iget_failed(inode);  in ufs_iget()
701 static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)  in ufs1_update_inode()  argument
703 	struct super_block *sb = inode->i_sb;  in ufs1_update_inode()
704  	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs1_update_inode()
706 	ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);  in ufs1_update_inode()
707 	ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);  in ufs1_update_inode()
709 	ufs_set_inode_uid(sb, ufs_inode, i_uid_read(inode));  in ufs1_update_inode()
710 	ufs_set_inode_gid(sb, ufs_inode, i_gid_read(inode));  in ufs1_update_inode()
712 	ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);  in ufs1_update_inode()
713 	ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);  in ufs1_update_inode()
715 	ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec);  in ufs1_update_inode()
717 	ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);  in ufs1_update_inode()
719 	ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);  in ufs1_update_inode()
721 	ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);  in ufs1_update_inode()
728 	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {  in ufs1_update_inode()
731 	} else if (inode->i_blocks) {  in ufs1_update_inode()
740 	if (!inode->i_nlink)  in ufs1_update_inode()
744 static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)  in ufs2_update_inode()  argument
746 	struct super_block *sb = inode->i_sb;  in ufs2_update_inode()
747  	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs2_update_inode()
750 	ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);  in ufs2_update_inode()
751 	ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);  in ufs2_update_inode()
753 	ufs_inode->ui_uid = cpu_to_fs32(sb, i_uid_read(inode));  in ufs2_update_inode()
754 	ufs_inode->ui_gid = cpu_to_fs32(sb, i_gid_read(inode));  in ufs2_update_inode()
756 	ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);  in ufs2_update_inode()
757 	ufs_inode->ui_atime = cpu_to_fs64(sb, inode->i_atime.tv_sec);  in ufs2_update_inode()
758 	ufs_inode->ui_atimensec = cpu_to_fs32(sb, inode->i_atime.tv_nsec);  in ufs2_update_inode()
759 	ufs_inode->ui_ctime = cpu_to_fs64(sb, inode->i_ctime.tv_sec);  in ufs2_update_inode()
760 	ufs_inode->ui_ctimensec = cpu_to_fs32(sb, inode->i_ctime.tv_nsec);  in ufs2_update_inode()
761 	ufs_inode->ui_mtime = cpu_to_fs64(sb, inode->i_mtime.tv_sec);  in ufs2_update_inode()
762 	ufs_inode->ui_mtimensec = cpu_to_fs32(sb, inode->i_mtime.tv_nsec);  in ufs2_update_inode()
764 	ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks);  in ufs2_update_inode()
766 	ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);  in ufs2_update_inode()
768 	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {  in ufs2_update_inode()
771 	} else if (inode->i_blocks) {  in ufs2_update_inode()
779 	if (!inode->i_nlink)  in ufs2_update_inode()
784 static int ufs_update_inode(struct inode * inode, int do_sync)  in ufs_update_inode()  argument
786 	struct super_block *sb = inode->i_sb;  in ufs_update_inode()
790 	UFSD("ENTER, ino %lu\n", inode->i_ino);  in ufs_update_inode()
792 	if (inode->i_ino < UFS_ROOTINO ||  in ufs_update_inode()
793 	    inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {  in ufs_update_inode()
794 		ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);  in ufs_update_inode()
798 	bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));  in ufs_update_inode()
800 		ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);  in ufs_update_inode()
806 		ufs2_update_inode(inode,  in ufs_update_inode()
807 				  ufs2_inode + ufs_inotofsbo(inode->i_ino));  in ufs_update_inode()
811 		ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));  in ufs_update_inode()
823 int ufs_write_inode(struct inode *inode, struct writeback_control *wbc)  in ufs_write_inode()  argument
825 	return ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);  in ufs_write_inode()
828 int ufs_sync_inode (struct inode *inode)  in ufs_sync_inode()  argument
830 	return ufs_update_inode (inode, 1);  in ufs_sync_inode()
833 void ufs_evict_inode(struct inode * inode)  in ufs_evict_inode()  argument
837 	if (!inode->i_nlink && !is_bad_inode(inode))  in ufs_evict_inode()
840 	truncate_inode_pages_final(&inode->i_data);  in ufs_evict_inode()
842 		inode->i_size = 0;  in ufs_evict_inode()
843 		if (inode->i_blocks)  in ufs_evict_inode()
844 			ufs_truncate_blocks(inode);  in ufs_evict_inode()
847 	invalidate_inode_buffers(inode);  in ufs_evict_inode()
848 	clear_inode(inode);  in ufs_evict_inode()
851 		ufs_free_inode(inode);  in ufs_evict_inode()
855 	struct inode *inode;  member
863 		ufs_free_blocks(ctx->inode, ctx->to - ctx->count, ctx->count);  in free_data()
870 #define DIRECT_BLOCK ((inode->i_size + uspi->s_bsize - 1) >> uspi->s_bshift)
871 #define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
873 static void ufs_trunc_direct(struct inode *inode)  in ufs_trunc_direct()  argument
875 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_trunc_direct()
880 	struct to_free ctx = {.inode = inode};  in ufs_trunc_direct()
883 	UFSD("ENTER: ino %lu\n", inode->i_ino);  in ufs_trunc_direct()
885 	sb = inode->i_sb;  in ufs_trunc_direct()
902 	     " frag3 %llu, frag4 %llu\n", inode->i_ino,  in ufs_trunc_direct()
920 	ufs_free_fragments(inode, tmp + frag1, frag2);  in ufs_trunc_direct()
955 	ufs_free_fragments (inode, tmp, frag4);  in ufs_trunc_direct()
958 	UFSD("EXIT: ino %lu\n", inode->i_ino);  in ufs_trunc_direct()
961 static void free_full_branch(struct inode *inode, u64 ind_block, int depth)  in free_full_branch()  argument
963 	struct super_block *sb = inode->i_sb;  in free_full_branch()
976 				free_full_branch(inode, block, depth);  in free_full_branch()
979 		struct to_free ctx = {.inode = inode};  in free_full_branch()
991 	ufs_free_blocks(inode, ind_block, uspi->s_fpb);  in free_full_branch()
994 static void free_branch_tail(struct inode *inode, unsigned from, struct ufs_buffer_head *ubh, int d…  in free_branch_tail()  argument
996 	struct super_block *sb = inode->i_sb;  in free_branch_tail()
1005 				write_seqlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1007 				write_sequnlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1009 				free_full_branch(inode, block, depth);  in free_branch_tail()
1013 		struct to_free ctx = {.inode = inode};  in free_branch_tail()
1019 				write_seqlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1021 				write_sequnlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1028 	if (IS_SYNC(inode) && ubh_buffer_dirty(ubh))  in free_branch_tail()
1033 static int ufs_alloc_lastblock(struct inode *inode, loff_t size)  in ufs_alloc_lastblock()  argument
1036 	struct super_block *sb = inode->i_sb;  in ufs_alloc_lastblock()
1037 	struct address_space *mapping = inode->i_mapping;  in ufs_alloc_lastblock()
1053 				       (PAGE_CACHE_SHIFT - inode->i_blkbits));  in ufs_alloc_lastblock()
1059        end = lastfrag & ((1 << (PAGE_CACHE_SHIFT - inode->i_blkbits)) - 1);  in ufs_alloc_lastblock()
1065        err = ufs_getfrag_block(inode, lastfrag, bh, 1);  in ufs_alloc_lastblock()
1103 static void __ufs_truncate_blocks(struct inode *inode)  in __ufs_truncate_blocks()  argument
1105 	struct ufs_inode_info *ufsi = UFS_I(inode);  in __ufs_truncate_blocks()
1106 	struct super_block *sb = inode->i_sb;  in __ufs_truncate_blocks()
1109 	int depth = ufs_block_to_path(inode, DIRECT_BLOCK, offsets);  in __ufs_truncate_blocks()
1126 		ufs_trunc_direct(inode);  in __ufs_truncate_blocks()
1146 			free_branch_tail(inode, offsets[i + 1], ubh[i], depth - i - 1);  in __ufs_truncate_blocks()
1155 			free_full_branch(inode, block, i - UFS_IND_BLOCK + 1);  in __ufs_truncate_blocks()
1159 	mark_inode_dirty(inode);  in __ufs_truncate_blocks()
1163 static int ufs_truncate(struct inode *inode, loff_t size)  in ufs_truncate()  argument
1168 	     inode->i_ino, (unsigned long long)size,  in ufs_truncate()
1169 	     (unsigned long long)i_size_read(inode));  in ufs_truncate()
1171 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||  in ufs_truncate()
1172 	      S_ISLNK(inode->i_mode)))  in ufs_truncate()
1174 	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))  in ufs_truncate()
1177 	err = ufs_alloc_lastblock(inode, size);  in ufs_truncate()
1182 	block_truncate_page(inode->i_mapping, size, ufs_getfrag_block);  in ufs_truncate()
1184 	truncate_setsize(inode, size);  in ufs_truncate()
1186 	__ufs_truncate_blocks(inode);  in ufs_truncate()
1187 	inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;  in ufs_truncate()
1188 	mark_inode_dirty(inode);  in ufs_truncate()
1194 void ufs_truncate_blocks(struct inode *inode)  in ufs_truncate_blocks()  argument
1196 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||  in ufs_truncate_blocks()
1197 	      S_ISLNK(inode->i_mode)))  in ufs_truncate_blocks()
1199 	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))  in ufs_truncate_blocks()
1201 	__ufs_truncate_blocks(inode);  in ufs_truncate_blocks()
1206 	struct inode *inode = d_inode(dentry);  in ufs_setattr()  local
1210 	error = inode_change_ok(inode, attr);  in ufs_setattr()
1214 	if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {  in ufs_setattr()
1215 		error = ufs_truncate(inode, attr->ia_size);  in ufs_setattr()
1220 	setattr_copy(inode, attr);  in ufs_setattr()
1221 	mark_inode_dirty(inode);  in ufs_setattr()