62 #define DIRECT_BLOCK ((inode->i_size + uspi->s_bsize - 1) >> uspi->s_bshift)
63 #define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
66 static int ufs_trunc_direct(struct inode *inode)  in ufs_trunc_direct()  argument
68 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_trunc_direct()
77 	UFSD("ENTER: ino %lu\n", inode->i_ino);  in ufs_trunc_direct()
79 	sb = inode->i_sb;  in ufs_trunc_direct()
100 	     " frag3 %llu, frag4 %llu\n", inode->i_ino,  in ufs_trunc_direct()
118 	ufs_free_fragments(inode, tmp + frag1, frag2);  in ufs_trunc_direct()
119 	mark_inode_dirty(inode);  in ufs_trunc_direct()
139 			ufs_free_blocks (inode, frag_to_free, free_count);  in ufs_trunc_direct()
143 		mark_inode_dirty(inode);  in ufs_trunc_direct()
147 		ufs_free_blocks (inode, frag_to_free, free_count);  in ufs_trunc_direct()
162 	ufs_free_fragments (inode, tmp, frag4);  in ufs_trunc_direct()
163 	mark_inode_dirty(inode);  in ufs_trunc_direct()
166 	UFSD("EXIT: ino %lu\n", inode->i_ino);  in ufs_trunc_direct()
171 static int ufs_trunc_indirect(struct inode *inode, u64 offset, void *p)  in ufs_trunc_indirect()  argument
182 	     inode->i_ino, (unsigned long long)offset, p);  in ufs_trunc_indirect()
186 	sb = inode->i_sb;  in ufs_trunc_indirect()
221 			ufs_free_blocks (inode, frag_to_free, free_count);  in ufs_trunc_indirect()
226 		mark_inode_dirty(inode);  in ufs_trunc_indirect()
230 		ufs_free_blocks (inode, frag_to_free, free_count);  in ufs_trunc_indirect()
240 		ufs_free_blocks (inode, tmp, uspi->s_fpb);  in ufs_trunc_indirect()
241 		mark_inode_dirty(inode);  in ufs_trunc_indirect()
245 	if (IS_SYNC(inode) && ind_ubh && ubh_buffer_dirty(ind_ubh))  in ufs_trunc_indirect()
249 	UFSD("EXIT: ino %lu\n", inode->i_ino);  in ufs_trunc_indirect()
254 static int ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p)  in ufs_trunc_dindirect()  argument
263 	UFSD("ENTER: ino %lu\n", inode->i_ino);  in ufs_trunc_dindirect()
265 	sb = inode->i_sb;  in ufs_trunc_dindirect()
290 		retry |= ufs_trunc_indirect (inode, offset + (i << uspi->s_apbshift), dind);  in ufs_trunc_dindirect()
302 		ufs_free_blocks(inode, tmp, uspi->s_fpb);  in ufs_trunc_dindirect()
303 		mark_inode_dirty(inode);  in ufs_trunc_dindirect()
307 	if (IS_SYNC(inode) && dind_bh && ubh_buffer_dirty(dind_bh))  in ufs_trunc_dindirect()
311 	UFSD("EXIT: ino %lu\n", inode->i_ino);  in ufs_trunc_dindirect()
316 static int ufs_trunc_tindirect(struct inode *inode)  in ufs_trunc_tindirect()  argument
318 	struct super_block *sb = inode->i_sb;  in ufs_trunc_tindirect()
320 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_trunc_tindirect()
326 	UFSD("ENTER: ino %lu\n", inode->i_ino);  in ufs_trunc_tindirect()
348 		retry |= ufs_trunc_dindirect(inode, UFS_NDADDR +   in ufs_trunc_tindirect()
360 		ufs_free_blocks(inode, tmp, uspi->s_fpb);  in ufs_trunc_tindirect()
361 		mark_inode_dirty(inode);  in ufs_trunc_tindirect()
365 	if (IS_SYNC(inode) && tind_bh && ubh_buffer_dirty(tind_bh))  in ufs_trunc_tindirect()
369 	UFSD("EXIT: ino %lu\n", inode->i_ino);  in ufs_trunc_tindirect()
373 static int ufs_alloc_lastblock(struct inode *inode)  in ufs_alloc_lastblock()  argument
376 	struct super_block *sb = inode->i_sb;  in ufs_alloc_lastblock()
377 	struct address_space *mapping = inode->i_mapping;  in ufs_alloc_lastblock()
385 	lastfrag = (i_size_read(inode) + uspi->s_fsize - 1) >> uspi->s_fshift;  in ufs_alloc_lastblock()
393 				       (PAGE_CACHE_SHIFT - inode->i_blkbits));  in ufs_alloc_lastblock()
399        end = lastfrag & ((1 << (PAGE_CACHE_SHIFT - inode->i_blkbits)) - 1);  in ufs_alloc_lastblock()
405        err = ufs_getfrag_block(inode, lastfrag, bh, 1);  in ufs_alloc_lastblock()
443 int ufs_truncate(struct inode *inode, loff_t old_i_size)  in ufs_truncate()  argument
445 	struct ufs_inode_info *ufsi = UFS_I(inode);  in ufs_truncate()
446 	struct super_block *sb = inode->i_sb;  in ufs_truncate()
451 	     inode->i_ino, (unsigned long long)i_size_read(inode),  in ufs_truncate()
454 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||  in ufs_truncate()
455 	      S_ISLNK(inode->i_mode)))  in ufs_truncate()
457 	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))  in ufs_truncate()
460 	err = ufs_alloc_lastblock(inode);  in ufs_truncate()
463 		i_size_write(inode, old_i_size);  in ufs_truncate()
467 	block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block);  in ufs_truncate()
470 		retry = ufs_trunc_direct(inode);  in ufs_truncate()
471 		retry |= ufs_trunc_indirect(inode, UFS_IND_BLOCK,  in ufs_truncate()
474 		retry |= ufs_trunc_dindirect(inode, UFS_IND_BLOCK + uspi->s_apb,  in ufs_truncate()
477 		retry |= ufs_trunc_tindirect (inode);  in ufs_truncate()
480 		if (IS_SYNC(inode) && (inode->i_state & I_DIRTY))  in ufs_truncate()
481 			ufs_sync_inode (inode);  in ufs_truncate()
485 	inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;  in ufs_truncate()
487 	mark_inode_dirty(inode);  in ufs_truncate()
495 	struct inode *inode = d_inode(dentry);  in ufs_setattr()  local
499 	error = inode_change_ok(inode, attr);  in ufs_setattr()
503 	if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {  in ufs_setattr()
504 		loff_t old_i_size = inode->i_size;  in ufs_setattr()
507 		truncate_setsize(inode, attr->ia_size);  in ufs_setattr()
509 		lock_ufs(inode->i_sb);  in ufs_setattr()
510 		error = ufs_truncate(inode, old_i_size);  in ufs_setattr()
511 		unlock_ufs(inode->i_sb);  in ufs_setattr()
516 	setattr_copy(inode, attr);  in ufs_setattr()
517 	mark_inode_dirty(inode);  in ufs_setattr()