47 static int ufs_block_to_path(struct inode *inode, sector_t i_block, unsigned offsets[4])  in ufs_block_to_path()  argument
49 	struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;  in ufs_block_to_path()
74 		ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");  in ufs_block_to_path()
125 static u64 ufs_frag_map(struct inode *inode, unsigned offsets[4], int depth)  in ufs_frag_map()  argument
127 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_frag_map()
128 	struct super_block *sb = inode->i_sb;  in ufs_frag_map()
222 ufs_extend_tail(struct inode *inode, u64 writes_to,  in ufs_extend_tail()  argument
225 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_extend_tail()
226 	struct super_block *sb = inode->i_sb;  in ufs_extend_tail()
240 	tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),  in ufs_extend_tail()
255 static u64 ufs_inode_getfrag(struct inode *inode, unsigned index,  in ufs_inode_getfrag()  argument
259 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_inode_getfrag()
260 	struct super_block *sb = inode->i_sb;  in ufs_inode_getfrag()
284 	tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),  in ufs_inode_getfrag()
294 	inode_set_ctime_current(inode);  in ufs_inode_getfrag()
295 	if (IS_SYNC(inode))  in ufs_inode_getfrag()
296 		ufs_sync_inode (inode);  in ufs_inode_getfrag()
297 	mark_inode_dirty(inode);  in ufs_inode_getfrag()
313 static u64 ufs_inode_getblock(struct inode *inode, u64 ind_block,  in ufs_inode_getblock()  argument
317 	struct super_block *sb = inode->i_sb;  in ufs_inode_getblock()
349 	tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,  in ufs_inode_getblock()
358 	if (IS_SYNC(inode))  in ufs_inode_getblock()
360 	inode_set_ctime_current(inode);  in ufs_inode_getblock()
361 	mark_inode_dirty(inode);  in ufs_inode_getblock()
375 static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result,…  in ufs_getfrag_block()  argument
377 	struct super_block *sb = inode->i_sb;  in ufs_getfrag_block()
381 	int depth = ufs_block_to_path(inode, fragment >> uspi->s_fpbshift, offsets);  in ufs_getfrag_block()
385 	phys64 = ufs_frag_map(inode, offsets, depth);  in ufs_getfrag_block()
392 		read_seqlock_excl(&UFS_I(inode)->meta_lock);  in ufs_getfrag_block()
393 		if (fragment < UFS_I(inode)->i_lastfrag) {  in ufs_getfrag_block()
394 			read_sequnlock_excl(&UFS_I(inode)->meta_lock);  in ufs_getfrag_block()
397 		read_sequnlock_excl(&UFS_I(inode)->meta_lock);  in ufs_getfrag_block()
401 	mutex_lock(&UFS_I(inode)->truncate_mutex);  in ufs_getfrag_block()
403 	UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);  in ufs_getfrag_block()
410 	if (UFS_I(inode)->i_lastfrag < UFS_NDIR_FRAGMENT) {  in ufs_getfrag_block()
411 		unsigned lastfrag = UFS_I(inode)->i_lastfrag;  in ufs_getfrag_block()
414 			if (!ufs_extend_tail(inode, fragment,  in ufs_getfrag_block()
421 		phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,  in ufs_getfrag_block()
425 		phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,  in ufs_getfrag_block()
428 			phys64 = ufs_inode_getblock(inode, phys64, offsets[i],  in ufs_getfrag_block()
430 		phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 1],  in ufs_getfrag_block()
440 	mutex_unlock(&UFS_I(inode)->truncate_mutex);  in ufs_getfrag_block()
465 static void ufs_truncate_blocks(struct inode *);
469 	struct inode *inode = mapping->host;  in ufs_write_failed()  local
471 	if (to > inode->i_size) {  in ufs_write_failed()
472 		truncate_pagecache(inode, inode->i_size);  in ufs_write_failed()
473 		ufs_truncate_blocks(inode);  in ufs_write_failed()
518 static void ufs_set_inode_ops(struct inode *inode)  in ufs_set_inode_ops()  argument
520 	if (S_ISREG(inode->i_mode)) {  in ufs_set_inode_ops()
521 		inode->i_op = &ufs_file_inode_operations;  in ufs_set_inode_ops()
522 		inode->i_fop = &ufs_file_operations;  in ufs_set_inode_ops()
523 		inode->i_mapping->a_ops = &ufs_aops;  in ufs_set_inode_ops()
524 	} else if (S_ISDIR(inode->i_mode)) {  in ufs_set_inode_ops()
525 		inode->i_op = &ufs_dir_inode_operations;  in ufs_set_inode_ops()
526 		inode->i_fop = &ufs_dir_operations;  in ufs_set_inode_ops()
527 		inode->i_mapping->a_ops = &ufs_aops;  in ufs_set_inode_ops()
528 	} else if (S_ISLNK(inode->i_mode)) {  in ufs_set_inode_ops()
529 		if (!inode->i_blocks) {  in ufs_set_inode_ops()
530 			inode->i_link = (char *)UFS_I(inode)->i_u1.i_symlink;  in ufs_set_inode_ops()
531 			inode->i_op = &simple_symlink_inode_operations;  in ufs_set_inode_ops()
533 			inode->i_mapping->a_ops = &ufs_aops;  in ufs_set_inode_ops()
534 			inode->i_op = &page_symlink_inode_operations;  in ufs_set_inode_ops()
535 			inode_nohighmem(inode);  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()
559 	i_uid_write(inode, ufs_get_inode_uid(sb, ufs_inode));  in ufs1_read_inode()
560 	i_gid_write(inode, ufs_get_inode_gid(sb, ufs_inode));  in ufs1_read_inode()
562 	inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);  in ufs1_read_inode()
563 	inode_set_atime(inode,  in ufs1_read_inode()
566 	inode_set_ctime(inode,  in ufs1_read_inode()
569 	inode_set_mtime(inode,  in ufs1_read_inode()
572 	inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);  in ufs1_read_inode()
573 	inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen);  in ufs1_read_inode()
579 	if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {  in ufs1_read_inode()
590 static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)  in ufs2_read_inode()  argument
592 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs2_read_inode()
593 	struct super_block *sb = inode->i_sb;  in ufs2_read_inode()
596 	UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);  in ufs2_read_inode()
600 	inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);  in ufs2_read_inode()
601 	set_nlink(inode, fs16_to_cpu(sb, ufs2_inode->ui_nlink));  in ufs2_read_inode()
602 	if (inode->i_nlink == 0)  in ufs2_read_inode()
608 	i_uid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_uid));  in ufs2_read_inode()
609 	i_gid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_gid));  in ufs2_read_inode()
611 	inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);  in ufs2_read_inode()
612 	inode_set_atime(inode, fs64_to_cpu(sb, ufs2_inode->ui_atime),  in ufs2_read_inode()
614 	inode_set_ctime(inode, fs64_to_cpu(sb, ufs2_inode->ui_ctime),  in ufs2_read_inode()
616 	inode_set_mtime(inode, fs64_to_cpu(sb, ufs2_inode->ui_mtime),  in ufs2_read_inode()
618 	inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);  in ufs2_read_inode()
619 	inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen);  in ufs2_read_inode()
626 	if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {  in ufs2_read_inode()
637 struct inode *ufs_iget(struct super_block *sb, unsigned long ino)  in ufs_iget()
642 	struct inode *inode;  in ufs_iget()  local
653 	inode = iget_locked(sb, ino);  in ufs_iget()
654 	if (!inode)  in ufs_iget()
656 	if (!(inode->i_state & I_NEW))  in ufs_iget()
657 		return inode;  in ufs_iget()
659 	ufsi = UFS_I(inode);  in ufs_iget()
661 	bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));  in ufs_iget()
664 			    inode->i_ino);  in ufs_iget()
670 		err = ufs2_read_inode(inode,  in ufs_iget()
671 				      ufs2_inode + ufs_inotofsbo(inode->i_ino));  in ufs_iget()
675 		err = ufs1_read_inode(inode,  in ufs_iget()
676 				      ufs_inode + ufs_inotofsbo(inode->i_ino));  in ufs_iget()
682 	inode_inc_iversion(inode);  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()
691 	unlock_new_inode(inode);  in ufs_iget()
692 	return inode;  in ufs_iget()
695 	iget_failed(inode);  in ufs_iget()
699 static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)  in ufs1_update_inode()  argument
701 	struct super_block *sb = inode->i_sb;  in ufs1_update_inode()
702  	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs1_update_inode()
704 	ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);  in ufs1_update_inode()
705 	ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);  in ufs1_update_inode()
707 	ufs_set_inode_uid(sb, ufs_inode, i_uid_read(inode));  in ufs1_update_inode()
708 	ufs_set_inode_gid(sb, ufs_inode, i_gid_read(inode));  in ufs1_update_inode()
710 	ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);  in ufs1_update_inode()
712 						 inode_get_atime_sec(inode));  in ufs1_update_inode()
715 						 inode_get_ctime_sec(inode));  in ufs1_update_inode()
718 						 inode_get_mtime_sec(inode));  in ufs1_update_inode()
720 	ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);  in ufs1_update_inode()
722 	ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);  in ufs1_update_inode()
729 	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {  in ufs1_update_inode()
732 	} else if (inode->i_blocks) {  in ufs1_update_inode()
741 	if (!inode->i_nlink)  in ufs1_update_inode()
745 static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)  in ufs2_update_inode()  argument
747 	struct super_block *sb = inode->i_sb;  in ufs2_update_inode()
748  	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs2_update_inode()
751 	ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);  in ufs2_update_inode()
752 	ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);  in ufs2_update_inode()
754 	ufs_inode->ui_uid = cpu_to_fs32(sb, i_uid_read(inode));  in ufs2_update_inode()
755 	ufs_inode->ui_gid = cpu_to_fs32(sb, i_gid_read(inode));  in ufs2_update_inode()
757 	ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);  in ufs2_update_inode()
758 	ufs_inode->ui_atime = cpu_to_fs64(sb, inode_get_atime_sec(inode));  in ufs2_update_inode()
760 					      inode_get_atime_nsec(inode));  in ufs2_update_inode()
761 	ufs_inode->ui_ctime = cpu_to_fs64(sb, inode_get_ctime_sec(inode));  in ufs2_update_inode()
763 					      inode_get_ctime_nsec(inode));  in ufs2_update_inode()
764 	ufs_inode->ui_mtime = cpu_to_fs64(sb, inode_get_mtime_sec(inode));  in ufs2_update_inode()
766 					      inode_get_mtime_nsec(inode));  in ufs2_update_inode()
768 	ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks);  in ufs2_update_inode()
770 	ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);  in ufs2_update_inode()
772 	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {  in ufs2_update_inode()
775 	} else if (inode->i_blocks) {  in ufs2_update_inode()
783 	if (!inode->i_nlink)  in ufs2_update_inode()
788 static int ufs_update_inode(struct inode * inode, int do_sync)  in ufs_update_inode()  argument
790 	struct super_block *sb = inode->i_sb;  in ufs_update_inode()
794 	UFSD("ENTER, ino %lu\n", inode->i_ino);  in ufs_update_inode()
796 	if (inode->i_ino < UFS_ROOTINO ||  in ufs_update_inode()
797 	    inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {  in ufs_update_inode()
798 		ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);  in ufs_update_inode()
802 	bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));  in ufs_update_inode()
804 		ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);  in ufs_update_inode()
810 		ufs2_update_inode(inode,  in ufs_update_inode()
811 				  ufs2_inode + ufs_inotofsbo(inode->i_ino));  in ufs_update_inode()
815 		ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));  in ufs_update_inode()
827 int ufs_write_inode(struct inode *inode, struct writeback_control *wbc)  in ufs_write_inode()  argument
829 	return ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);  in ufs_write_inode()
832 int ufs_sync_inode (struct inode *inode)  in ufs_sync_inode()  argument
834 	return ufs_update_inode (inode, 1);  in ufs_sync_inode()
837 void ufs_evict_inode(struct inode * inode)  in ufs_evict_inode()  argument
841 	if (!inode->i_nlink && !is_bad_inode(inode))  in ufs_evict_inode()
844 	truncate_inode_pages_final(&inode->i_data);  in ufs_evict_inode()
846 		inode->i_size = 0;  in ufs_evict_inode()
847 		if (inode->i_blocks &&  in ufs_evict_inode()
848 		    (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||  in ufs_evict_inode()
849 		     S_ISLNK(inode->i_mode)))  in ufs_evict_inode()
850 			ufs_truncate_blocks(inode);  in ufs_evict_inode()
851 		ufs_update_inode(inode, inode_needs_sync(inode));  in ufs_evict_inode()
854 	invalidate_inode_buffers(inode);  in ufs_evict_inode()
855 	clear_inode(inode);  in ufs_evict_inode()
858 		ufs_free_inode(inode);  in ufs_evict_inode()
862 	struct inode *inode;  member
870 		ufs_free_blocks(ctx->inode, ctx->to - ctx->count, ctx->count);  in free_data()
877 #define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
882 static void ufs_trunc_direct(struct inode *inode)  in ufs_trunc_direct()  argument
884 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_trunc_direct()
885 	struct super_block *sb = inode->i_sb;  in ufs_trunc_direct()
890 	struct to_free ctx = {.inode = inode};  in ufs_trunc_direct()
892 	UFSD("ENTER: ino %lu\n", inode->i_ino);  in ufs_trunc_direct()
917 		ufs_free_fragments(inode, tmp + new_tail, old_tail - new_tail);  in ufs_trunc_direct()
927 			ufs_free_fragments(inode, tmp + new_tail,  in ufs_trunc_direct()
953 			ufs_free_fragments(inode, tmp, old_tail);  in ufs_trunc_direct()
957 	UFSD("EXIT: ino %lu\n", inode->i_ino);  in ufs_trunc_direct()
960 static void free_full_branch(struct inode *inode, u64 ind_block, int depth)  in free_full_branch()  argument
962 	struct super_block *sb = inode->i_sb;  in free_full_branch()
975 				free_full_branch(inode, block, depth);  in free_full_branch()
978 		struct to_free ctx = {.inode = inode};  in free_full_branch()
990 	ufs_free_blocks(inode, ind_block, uspi->s_fpb);  in free_full_branch()
993 static void free_branch_tail(struct inode *inode, unsigned from, struct ufs_buffer_head *ubh, int d…  in free_branch_tail()  argument
995 	struct super_block *sb = inode->i_sb;  in free_branch_tail()
1004 				write_seqlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1006 				write_sequnlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1008 				free_full_branch(inode, block, depth);  in free_branch_tail()
1012 		struct to_free ctx = {.inode = inode};  in free_branch_tail()
1018 				write_seqlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1020 				write_sequnlock(&UFS_I(inode)->meta_lock);  in free_branch_tail()
1027 	if (IS_SYNC(inode) && ubh_buffer_dirty(ubh))  in free_branch_tail()
1032 static int ufs_alloc_lastblock(struct inode *inode, loff_t size)  in ufs_alloc_lastblock()  argument
1035 	struct super_block *sb = inode->i_sb;  in ufs_alloc_lastblock()
1036 	struct address_space *mapping = inode->i_mapping;  in ufs_alloc_lastblock()
1052 				       (PAGE_SHIFT - inode->i_blkbits));  in ufs_alloc_lastblock()
1058 	end = lastfrag & ((1 << (PAGE_SHIFT - inode->i_blkbits)) - 1);  in ufs_alloc_lastblock()
1063        err = ufs_getfrag_block(inode, lastfrag, bh, 1);  in ufs_alloc_lastblock()
1100 static void ufs_truncate_blocks(struct inode *inode)  in ufs_truncate_blocks()  argument
1102 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_truncate_blocks()
1103 	struct super_block *sb = inode->i_sb;  in ufs_truncate_blocks()
1113 	if (inode->i_size) {  in ufs_truncate_blocks()
1114 		sector_t last = (inode->i_size - 1) >> uspi->s_bshift;  in ufs_truncate_blocks()
1115 		depth = ufs_block_to_path(inode, last, offsets);  in ufs_truncate_blocks()
1128 		ufs_trunc_direct(inode);  in ufs_truncate_blocks()
1147 			free_branch_tail(inode, offsets[i + 1], ubh[i], depth - i - 1);  in ufs_truncate_blocks()
1156 			free_full_branch(inode, block, i - UFS_IND_BLOCK + 1);  in ufs_truncate_blocks()
1162 	mark_inode_dirty(inode);  in ufs_truncate_blocks()
1166 static int ufs_truncate(struct inode *inode, loff_t size)  in ufs_truncate()  argument
1171 	     inode->i_ino, (unsigned long long)size,  in ufs_truncate()
1172 	     (unsigned long long)i_size_read(inode));  in ufs_truncate()
1174 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||  in ufs_truncate()
1175 	      S_ISLNK(inode->i_mode)))  in ufs_truncate()
1177 	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))  in ufs_truncate()
1180 	err = ufs_alloc_lastblock(inode, size);  in ufs_truncate()
1185 	block_truncate_page(inode->i_mapping, size, ufs_getfrag_block);  in ufs_truncate()
1187 	truncate_setsize(inode, size);  in ufs_truncate()
1189 	ufs_truncate_blocks(inode);  in ufs_truncate()
1190 	inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));  in ufs_truncate()
1191 	mark_inode_dirty(inode);  in ufs_truncate()
1200 	struct inode *inode = d_inode(dentry);  in ufs_setattr()  local
1208 	if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {  in ufs_setattr()
1209 		error = ufs_truncate(inode, attr->ia_size);  in ufs_setattr()
1214 	setattr_copy(&nop_mnt_idmap, inode, attr);  in ufs_setattr()
1215 	mark_inode_dirty(inode);  in ufs_setattr()