38 	struct xfs_ifork	*ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_init_local_fork()  local
53 		ifp->if_u1.if_data = kmem_alloc(mem_size, KM_NOFS);  in xfs_init_local_fork()
54 		memcpy(ifp->if_u1.if_data, data, size);  in xfs_init_local_fork()
56 			ifp->if_u1.if_data[size] = '\0';  in xfs_init_local_fork()
58 		ifp->if_u1.if_data = NULL;  in xfs_init_local_fork()
61 	ifp->if_bytes = size;  in xfs_init_local_fork()
105 	struct xfs_ifork	*ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_iformat_extents()  local
127 	ifp->if_bytes = 0;  in xfs_iformat_extents()
128 	ifp->if_u1.if_root = NULL;  in xfs_iformat_extents()
129 	ifp->if_height = 0;  in xfs_iformat_extents()
133 		xfs_iext_first(ifp, &icur);  in xfs_iformat_extents()
149 			xfs_iext_next(ifp, &icur);  in xfs_iformat_extents()
171 	struct xfs_ifork	*ifp;  in xfs_iformat_btree()  local
177 	ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_iformat_btree()
190 	if (unlikely(ifp->if_nextents <= XFS_IFORK_MAXEXT(ip, whichfork) ||  in xfs_iformat_btree()
194 		     ifp->if_nextents > ip->i_nblocks) ||  in xfs_iformat_btree()
204 	ifp->if_broot_bytes = size;  in xfs_iformat_btree()
205 	ifp->if_broot = kmem_alloc(size, KM_NOFS);  in xfs_iformat_btree()
206 	ASSERT(ifp->if_broot != NULL);  in xfs_iformat_btree()
212 			 ifp->if_broot, size);  in xfs_iformat_btree()
214 	ifp->if_bytes = 0;  in xfs_iformat_btree()
215 	ifp->if_u1.if_root = NULL;  in xfs_iformat_btree()
216 	ifp->if_height = 0;  in xfs_iformat_btree()
378 	struct xfs_ifork	*ifp;  in xfs_iroot_realloc()  local
392 	ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_iroot_realloc()
398 		if (ifp->if_broot_bytes == 0) {  in xfs_iroot_realloc()
400 			ifp->if_broot = kmem_alloc(new_size, KM_NOFS);  in xfs_iroot_realloc()
401 			ifp->if_broot_bytes = (int)new_size;  in xfs_iroot_realloc()
411 		cur_max = xfs_bmbt_maxrecs(mp, ifp->if_broot_bytes, 0);  in xfs_iroot_realloc()
414 		ifp->if_broot = krealloc(ifp->if_broot, new_size,  in xfs_iroot_realloc()
416 		op = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,  in xfs_iroot_realloc()
417 						     ifp->if_broot_bytes);  in xfs_iroot_realloc()
418 		np = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,  in xfs_iroot_realloc()
420 		ifp->if_broot_bytes = (int)new_size;  in xfs_iroot_realloc()
421 		ASSERT(XFS_BMAP_BMDR_SPACE(ifp->if_broot) <=  in xfs_iroot_realloc()
432 	ASSERT((ifp->if_broot != NULL) && (ifp->if_broot_bytes > 0));  in xfs_iroot_realloc()
433 	cur_max = xfs_bmbt_maxrecs(mp, ifp->if_broot_bytes, 0);  in xfs_iroot_realloc()
445 		memcpy(new_broot, ifp->if_broot,  in xfs_iroot_realloc()
458 		op = (char *)XFS_BMBT_KEY_ADDR(mp, ifp->if_broot, 1);  in xfs_iroot_realloc()
465 		op = (char *)XFS_BMAP_BROOT_PTR_ADDR(mp, ifp->if_broot, 1,  in xfs_iroot_realloc()
466 						     ifp->if_broot_bytes);  in xfs_iroot_realloc()
471 	kmem_free(ifp->if_broot);  in xfs_iroot_realloc()
472 	ifp->if_broot = new_broot;  in xfs_iroot_realloc()
473 	ifp->if_broot_bytes = (int)new_size;  in xfs_iroot_realloc()
474 	if (ifp->if_broot)  in xfs_iroot_realloc()
475 		ASSERT(XFS_BMAP_BMDR_SPACE(ifp->if_broot) <=  in xfs_iroot_realloc()
502 	struct xfs_ifork	*ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_idata_realloc()  local
503 	int64_t			new_size = ifp->if_bytes + byte_diff;  in xfs_idata_realloc()
512 		kmem_free(ifp->if_u1.if_data);  in xfs_idata_realloc()
513 		ifp->if_u1.if_data = NULL;  in xfs_idata_realloc()
514 		ifp->if_bytes = 0;  in xfs_idata_realloc()
518 	ifp->if_u1.if_data = krealloc(ifp->if_u1.if_data, new_size,  in xfs_idata_realloc()
520 	ifp->if_bytes = new_size;  in xfs_idata_realloc()
525 	struct xfs_ifork	*ifp)  in xfs_idestroy_fork()  argument
527 	if (ifp->if_broot != NULL) {  in xfs_idestroy_fork()
528 		kmem_free(ifp->if_broot);  in xfs_idestroy_fork()
529 		ifp->if_broot = NULL;  in xfs_idestroy_fork()
532 	switch (ifp->if_format) {  in xfs_idestroy_fork()
534 		kmem_free(ifp->if_u1.if_data);  in xfs_idestroy_fork()
535 		ifp->if_u1.if_data = NULL;  in xfs_idestroy_fork()
539 		if (ifp->if_height)  in xfs_idestroy_fork()
540 			xfs_iext_destroy(ifp);  in xfs_idestroy_fork()
561 	struct xfs_ifork	*ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_iextents_copy()  local
567 	ASSERT(ifp->if_bytes > 0);  in xfs_iextents_copy()
569 	for_each_xfs_iext(ifp, &icur, &rec) {  in xfs_iextents_copy()
580 	ASSERT(copied <= ifp->if_bytes);  in xfs_iextents_copy()
602 	struct xfs_ifork	*ifp;  in xfs_iflush_fork()  local
613 	ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_iflush_fork()
618 	if (!ifp) {  in xfs_iflush_fork()
624 	switch (ifp->if_format) {  in xfs_iflush_fork()
627 		    (ifp->if_bytes > 0)) {  in xfs_iflush_fork()
628 			ASSERT(ifp->if_u1.if_data != NULL);  in xfs_iflush_fork()
629 			ASSERT(ifp->if_bytes <= xfs_inode_fork_size(ip, whichfork));  in xfs_iflush_fork()
630 			memcpy(cp, ifp->if_u1.if_data, ifp->if_bytes);  in xfs_iflush_fork()
636 		    (ifp->if_bytes > 0)) {  in xfs_iflush_fork()
637 			ASSERT(ifp->if_nextents > 0);  in xfs_iflush_fork()
645 		    (ifp->if_broot_bytes > 0)) {  in xfs_iflush_fork()
646 			ASSERT(ifp->if_broot != NULL);  in xfs_iflush_fork()
647 			ASSERT(XFS_BMAP_BMDR_SPACE(ifp->if_broot) <=  in xfs_iflush_fork()
649 			xfs_bmbt_to_bmdr(mp, ifp->if_broot, ifp->if_broot_bytes,  in xfs_iflush_fork()
729 	struct xfs_ifork	*ifp = &ip->i_af;  in xfs_ifork_verify_local_attr()  local
739 				ifp->if_u1.if_data, ifp->if_bytes, fa);  in xfs_ifork_verify_local_attr()
752 	struct xfs_ifork	*ifp = xfs_ifork_ptr(ip, whichfork);  in xfs_iext_count_may_overflow()  local
765 	nr_exts = ifp->if_nextents + nr_to_add;  in xfs_iext_count_may_overflow()
766 	if (nr_exts < ifp->if_nextents || nr_exts > max_exts)  in xfs_iext_count_may_overflow()