1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (c) 2000-2006 Silicon Graphics, Inc.
58 	int		maxrootrecs;	/* max records in root block */  in xfs_bmap_compute_maxlevels()
59 	int		minleafrecs;	/* min records in leaf block */  in xfs_bmap_compute_maxlevels()
60 	int		minnoderecs;	/* min records in node block */  in xfs_bmap_compute_maxlevels()
61 	int		sz;		/* root block size */  in xfs_bmap_compute_maxlevels()
65 	 * leaf entries, is controlled by the size of the on-disk extent count,  in xfs_bmap_compute_maxlevels()
66 	 * either a signed 32-bit number for the data fork, or a signed 16-bit  in xfs_bmap_compute_maxlevels()
71 	 * (xfs_default_attroffset(ip) >> 3) because we could have mounted  in xfs_bmap_compute_maxlevels()
85 	minleafrecs = mp->m_bmap_dmnr[0];  in xfs_bmap_compute_maxlevels()
86 	minnoderecs = mp->m_bmap_dmnr[1];  in xfs_bmap_compute_maxlevels()
87 	maxblocks = (maxleafents + minleafrecs - 1) / minleafrecs;  in xfs_bmap_compute_maxlevels()
92 			maxblocks = (maxblocks + minnoderecs - 1) / minnoderecs;  in xfs_bmap_compute_maxlevels()
94 	mp->m_bm_maxlevels[whichfork] = level;  in xfs_bmap_compute_maxlevels()
103 	cur->bc_rec.b = *irec;  in xfs_bmbt_lookup_eq()
112 	cur->bc_rec.b.br_startoff = 0;  in xfs_bmbt_lookup_first()
113 	cur->bc_rec.b.br_startblock = 0;  in xfs_bmbt_lookup_first()
114 	cur->bc_rec.b.br_blockcount = 0;  in xfs_bmbt_lookup_first()
121 static inline bool xfs_bmap_needs_btree(struct xfs_inode *ip, int whichfork)  in xfs_bmap_needs_btree()  argument
123 	struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_needs_btree()
126 		ifp->if_format == XFS_DINODE_FMT_EXTENTS &&  in xfs_bmap_needs_btree()
127 		ifp->if_nextents > XFS_IFORK_MAXEXT(ip, whichfork);  in xfs_bmap_needs_btree()
133 static inline bool xfs_bmap_wants_extents(struct xfs_inode *ip, int whichfork)  in xfs_bmap_wants_extents()  argument
135 	struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_wants_extents()
138 		ifp->if_format == XFS_DINODE_FMT_BTREE &&  in xfs_bmap_wants_extents()
139 		ifp->if_nextents <= XFS_IFORK_MAXEXT(ip, whichfork);  in xfs_bmap_wants_extents()
158  * Compute the worst-case number of indirect blocks that will be used
159  * for ip's delayed extent of length "len".
163 	xfs_inode_t	*ip,		/* incore inode pointer */  in xfs_bmap_worst_indlen()  argument
171 	mp = ip->i_mount;  in xfs_bmap_worst_indlen()
172 	maxrecs = mp->m_bmap_dmxr[0];  in xfs_bmap_worst_indlen()
176 		len += maxrecs - 1;  in xfs_bmap_worst_indlen()
180 			return rval + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -  in xfs_bmap_worst_indlen()
181 				level - 1;  in xfs_bmap_worst_indlen()
183 			maxrecs = mp->m_bmap_dmxr[1];  in xfs_bmap_worst_indlen()
193 	struct xfs_inode	*ip)  in xfs_default_attroffset()  argument
195 	struct xfs_mount	*mp = ip->i_mount;  in xfs_default_attroffset()
198 	if (mp->m_sb.sb_inodesize == 256)  in xfs_default_attroffset()
199 		offset = XFS_LITINO(mp) - XFS_BMDR_SPACE_CALC(MINABTPTRS);  in xfs_default_attroffset()
209  * attribute fork from local to extent format - we reset it where
214 	xfs_inode_t	*ip,  in xfs_bmap_forkoff_reset()  argument
218 	    ip->i_df.if_format != XFS_DINODE_FMT_DEV &&  in xfs_bmap_forkoff_reset()
219 	    ip->i_df.if_format != XFS_DINODE_FMT_BTREE) {  in xfs_bmap_forkoff_reset()
220 		uint	dfl_forkoff = xfs_default_attroffset(ip) >> 3;  in xfs_bmap_forkoff_reset()
222 		if (dfl_forkoff > ip->i_d.di_forkoff)  in xfs_bmap_forkoff_reset()
223 			ip->i_d.di_forkoff = dfl_forkoff;  in xfs_bmap_forkoff_reset()
240 		if (!cur->bc_bufs[i])  in xfs_bmap_get_bp()
242 		if (XFS_BUF_ADDR(cur->bc_bufs[i]) == bno)  in xfs_bmap_get_bp()
243 			return cur->bc_bufs[i];  in xfs_bmap_get_bp()
247 	list_for_each_entry(lip, &cur->bc_tp->t_items, li_trans) {  in xfs_bmap_get_bp()
250 		if (bip->bli_item.li_type == XFS_LI_BUF &&  in xfs_bmap_get_bp()
251 		    XFS_BUF_ADDR(bip->bli_buf) == bno)  in xfs_bmap_get_bp()
252 			return bip->bli_buf;  in xfs_bmap_get_bp()
260 	struct xfs_btree_block	*block,  in xfs_check_block()  argument
266 	__be64			*pp, *thispa;	/* pointer to block address */  in xfs_check_block()
269 	ASSERT(be16_to_cpu(block->bb_level) > 0);  in xfs_check_block()
272 	for( i = 1; i <= xfs_btree_get_numrecs(block); i++) {  in xfs_check_block()
273 		dmxr = mp->m_bmap_dmxr[0];  in xfs_check_block()
274 		keyp = XFS_BMBT_KEY_ADDR(mp, block, i);  in xfs_check_block()
277 			ASSERT(be64_to_cpu(prevp->br_startoff) <  in xfs_check_block()
278 			       be64_to_cpu(keyp->br_startoff));  in xfs_check_block()
283 		 * Compare the block numbers to see if there are dups.  in xfs_check_block()
286 			pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, i, sz);  in xfs_check_block()
288 			pp = XFS_BMBT_PTR_ADDR(mp, block, i, dmxr);  in xfs_check_block()
290 		for (j = i+1; j <= be16_to_cpu(block->bb_numrecs); j++) {  in xfs_check_block()
292 				thispa = XFS_BMAP_BROOT_PTR_ADDR(mp, block, j, sz);  in xfs_check_block()
294 				thispa = XFS_BMBT_PTR_ADDR(mp, block, j, dmxr);  in xfs_check_block()
308  * Check that the extents for the inode ip are in the right order in all
317 	xfs_inode_t		*ip,		/* incore inode pointer */  in xfs_bmap_check_leaf_extents()  argument
320 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_check_leaf_extents()
321 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_check_leaf_extents()
322 	struct xfs_btree_block	*block;	/* current btree block */  in xfs_bmap_check_leaf_extents()  local
323 	xfs_fsblock_t		bno;	/* block # of "block" */  in xfs_bmap_check_leaf_extents()
324 	xfs_buf_t		*bp;	/* buffer for "block" */  in xfs_bmap_check_leaf_extents()
328 	__be64			*pp;	/* pointer to block address */  in xfs_bmap_check_leaf_extents()
330 	xfs_bmbt_rec_t		last = {0, 0}; /* last extent in prev block */  in xfs_bmap_check_leaf_extents()
334 	if (ifp->if_format != XFS_DINODE_FMT_BTREE)  in xfs_bmap_check_leaf_extents()
338 	if (ip->i_df.if_nextents > 10000)  in xfs_bmap_check_leaf_extents()
342 	block = ifp->if_broot;  in xfs_bmap_check_leaf_extents()
346 	level = be16_to_cpu(block->bb_level);  in xfs_bmap_check_leaf_extents()
348 	xfs_check_block(block, mp, 1, ifp->if_broot_bytes);  in xfs_bmap_check_leaf_extents()
349 	pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);  in xfs_bmap_check_leaf_extents()
353 	ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);  in xfs_bmap_check_leaf_extents()
354 	ASSERT(XFS_FSB_TO_AGBNO(mp, bno) < mp->m_sb.sb_agblocks);  in xfs_bmap_check_leaf_extents()
360 	while (level-- > 0) {  in xfs_bmap_check_leaf_extents()
372 		block = XFS_BUF_TO_BLOCK(bp);  in xfs_bmap_check_leaf_extents()
377 		 * Check this block for basic sanity (increasing keys and  in xfs_bmap_check_leaf_extents()
381 		xfs_check_block(block, mp, 0, 0);  in xfs_bmap_check_leaf_extents()
382 		pp = XFS_BMBT_PTR_ADDR(mp, block, 1, mp->m_bmap_dmxr[1]);  in xfs_bmap_check_leaf_extents()
385 			error = -EFSCORRUPTED;  in xfs_bmap_check_leaf_extents()
395 	 * Here with bp and block set to the leftmost leaf node in the tree.  in xfs_bmap_check_leaf_extents()
407 		num_recs = xfs_btree_get_numrecs(block);  in xfs_bmap_check_leaf_extents()
410 		 * Read-ahead the next leaf block, if any.  in xfs_bmap_check_leaf_extents()
413 		nextbno = be64_to_cpu(block->bb_u.l.bb_rightsib);  in xfs_bmap_check_leaf_extents()
417 		 * If we had a previous block, the last entry should  in xfs_bmap_check_leaf_extents()
421 		ep = XFS_BMBT_REC_ADDR(mp, block, 1);  in xfs_bmap_check_leaf_extents()
428 			nextp = XFS_BMBT_REC_ADDR(mp, block, j + 1);  in xfs_bmap_check_leaf_extents()
458 		block = XFS_BUF_TO_BLOCK(bp);  in xfs_bmap_check_leaf_extents()
507 		       mval[i - 1].br_startoff + mval[i - 1].br_blockcount ==  in xfs_bmap_validate_ret()
517 #define xfs_bmap_check_leaf_extents(cur, ip, whichfork)		do { } while (0)  argument
527  * The list is maintained sorted (by block number).
539 	struct xfs_mount		*mp = tp->t_mountp;  in __xfs_bmap_add_free()
549 	ASSERT(agno < mp->m_sb.sb_agcount);  in __xfs_bmap_add_free()
550 	ASSERT(agbno < mp->m_sb.sb_agblocks);  in __xfs_bmap_add_free()
551 	ASSERT(len < mp->m_sb.sb_agblocks);  in __xfs_bmap_add_free()
552 	ASSERT(agbno + len <= mp->m_sb.sb_agblocks);  in __xfs_bmap_add_free()
558 	new->xefi_startblock = bno;  in __xfs_bmap_add_free()
559 	new->xefi_blockcount = (xfs_extlen_t)len;  in __xfs_bmap_add_free()
561 		new->xefi_oinfo = *oinfo;  in __xfs_bmap_add_free()
563 		new->xefi_oinfo = XFS_RMAP_OINFO_SKIP_UPDATE;  in __xfs_bmap_add_free()
564 	new->xefi_skip_discard = skip_discard;  in __xfs_bmap_add_free()
565 	trace_xfs_bmap_free_defer(tp->t_mountp,  in __xfs_bmap_add_free()
566 			XFS_FSB_TO_AGNO(tp->t_mountp, bno), 0,  in __xfs_bmap_add_free()
567 			XFS_FSB_TO_AGBNO(tp->t_mountp, bno), len);  in __xfs_bmap_add_free()
568 	xfs_defer_add(tp, XFS_DEFER_OPS_TYPE_FREE, &new->xefi_list);  in __xfs_bmap_add_free()
579  * Since the extents are already in-core, all we have to do is give up the space
580  * for the btree root and pitch the leaf block.
585 	struct xfs_inode	*ip,	/* incore inode pointer */  in xfs_bmap_btree_to_extents()  argument
590 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_btree_to_extents()
591 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_btree_to_extents()
592 	struct xfs_btree_block	*rblock = ifp->if_broot;  in xfs_bmap_btree_to_extents()
593 	struct xfs_btree_block	*cblock;/* child btree block */  in xfs_bmap_btree_to_extents()
594 	xfs_fsblock_t		cbno;	/* child block number */  in xfs_bmap_btree_to_extents()
595 	xfs_buf_t		*cbp;	/* child block's buffer */  in xfs_bmap_btree_to_extents()
597 	__be64			*pp;	/* ptr to block address */  in xfs_bmap_btree_to_extents()
601 	if (!xfs_bmap_wants_extents(ip, whichfork))  in xfs_bmap_btree_to_extents()
606 	ASSERT(ifp->if_flags & XFS_IFEXTENTS);  in xfs_bmap_btree_to_extents()
607 	ASSERT(ifp->if_format == XFS_DINODE_FMT_BTREE);  in xfs_bmap_btree_to_extents()
608 	ASSERT(be16_to_cpu(rblock->bb_level) == 1);  in xfs_bmap_btree_to_extents()
609 	ASSERT(be16_to_cpu(rblock->bb_numrecs) == 1);  in xfs_bmap_btree_to_extents()
610 	ASSERT(xfs_bmbt_maxrecs(mp, ifp->if_broot_bytes, 0) == 1);  in xfs_bmap_btree_to_extents()
612 	pp = XFS_BMAP_BROOT_PTR_ADDR(mp, rblock, 1, ifp->if_broot_bytes);  in xfs_bmap_btree_to_extents()
615 	if (XFS_IS_CORRUPT(cur->bc_mp, !xfs_btree_check_lptr(cur, cbno, 1)))  in xfs_bmap_btree_to_extents()
616 		return -EFSCORRUPTED;  in xfs_bmap_btree_to_extents()
625 	xfs_rmap_ino_bmbt_owner(&oinfo, ip->i_ino, whichfork);  in xfs_bmap_btree_to_extents()
626 	xfs_bmap_add_free(cur->bc_tp, cbno, 1, &oinfo);  in xfs_bmap_btree_to_extents()
627 	ip->i_d.di_nblocks--;  in xfs_bmap_btree_to_extents()
628 	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, -1L);  in xfs_bmap_btree_to_extents()
630 	if (cur->bc_bufs[0] == cbp)  in xfs_bmap_btree_to_extents()
631 		cur->bc_bufs[0] = NULL;  in xfs_bmap_btree_to_extents()
632 	xfs_iroot_realloc(ip, -1, whichfork);  in xfs_bmap_btree_to_extents()
633 	ASSERT(ifp->if_broot == NULL);  in xfs_bmap_btree_to_extents()
634 	ASSERT((ifp->if_flags & XFS_IFBROOT) == 0);  in xfs_bmap_btree_to_extents()
635 	ifp->if_format = XFS_DINODE_FMT_EXTENTS;  in xfs_bmap_btree_to_extents()
641  * Convert an extents-format file into a btree-format file.
642  * The new file will have a root block (in the inode) and a single child block.
647 	struct xfs_inode	*ip,		/* incore inode pointer */  in xfs_bmap_extents_to_btree()  argument
653 	struct xfs_btree_block	*ablock;	/* allocated (child) bt block */  in xfs_bmap_extents_to_btree()
657 	struct xfs_btree_block	*block;		/* btree root block */  in xfs_bmap_extents_to_btree()  local
661 	struct xfs_bmbt_key	*kp;		/* root block key pointer */  in xfs_bmap_extents_to_btree()
663 	xfs_bmbt_ptr_t		*pp;		/* root block address pointer */  in xfs_bmap_extents_to_btree()
668 	mp = ip->i_mount;  in xfs_bmap_extents_to_btree()
670 	ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_extents_to_btree()
671 	ASSERT(ifp->if_format == XFS_DINODE_FMT_EXTENTS);  in xfs_bmap_extents_to_btree()
677 	xfs_iroot_realloc(ip, 1, whichfork);  in xfs_bmap_extents_to_btree()
678 	ifp->if_flags |= XFS_IFBROOT;  in xfs_bmap_extents_to_btree()
683 	block = ifp->if_broot;  in xfs_bmap_extents_to_btree()
684 	xfs_btree_init_block_int(mp, block, XFS_BUF_DADDR_NULL,  in xfs_bmap_extents_to_btree()
685 				 XFS_BTNUM_BMAP, 1, 1, ip->i_ino,  in xfs_bmap_extents_to_btree()
690 	cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);  in xfs_bmap_extents_to_btree()
691 	cur->bc_ino.flags = wasdel ? XFS_BTCUR_BMBT_WASDEL : 0;  in xfs_bmap_extents_to_btree()
695 	ifp->if_format = XFS_DINODE_FMT_BTREE;  in xfs_bmap_extents_to_btree()
699 	xfs_rmap_ino_bmbt_owner(&args.oinfo, ip->i_ino, whichfork);  in xfs_bmap_extents_to_btree()
700 	if (tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmap_extents_to_btree()
702 		args.fsbno = XFS_INO_TO_FSB(mp, ip->i_ino);  in xfs_bmap_extents_to_btree()
703 	} else if (tp->t_flags & XFS_TRANS_LOWMODE) {  in xfs_bmap_extents_to_btree()
705 		args.fsbno = tp->t_firstblock;  in xfs_bmap_extents_to_btree()
708 		args.fsbno = tp->t_firstblock;  in xfs_bmap_extents_to_btree()
718 		error = -ENOSPC;  in xfs_bmap_extents_to_btree()
725 	ASSERT(tp->t_firstblock == NULLFSBLOCK ||  in xfs_bmap_extents_to_btree()
726 	       args.agno >= XFS_FSB_TO_AGNO(mp, tp->t_firstblock));  in xfs_bmap_extents_to_btree()
727 	tp->t_firstblock = args.fsbno;  in xfs_bmap_extents_to_btree()
728 	cur->bc_ino.allocated++;  in xfs_bmap_extents_to_btree()
729 	ip->i_d.di_nblocks++;  in xfs_bmap_extents_to_btree()
730 	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, 1L);  in xfs_bmap_extents_to_btree()
731 	error = xfs_trans_get_buf(tp, mp->m_ddev_targp,  in xfs_bmap_extents_to_btree()
733 			mp->m_bsize, 0, &abp);  in xfs_bmap_extents_to_btree()
738 	 * Fill in the child block.  in xfs_bmap_extents_to_btree()
740 	abp->b_ops = &xfs_bmbt_buf_ops;  in xfs_bmap_extents_to_btree()
742 	xfs_btree_init_block_int(mp, ablock, abp->b_bn,  in xfs_bmap_extents_to_btree()
743 				XFS_BTNUM_BMAP, 0, 0, ip->i_ino,  in xfs_bmap_extents_to_btree()
753 	ASSERT(cnt == ifp->if_nextents);  in xfs_bmap_extents_to_btree()
759 	kp = XFS_BMBT_KEY_ADDR(mp, block, 1);  in xfs_bmap_extents_to_btree()
761 	kp->br_startoff = cpu_to_be64(xfs_bmbt_disk_get_startoff(arp));  in xfs_bmap_extents_to_btree()
762 	pp = XFS_BMBT_PTR_ADDR(mp, block, 1, xfs_bmbt_get_maxrecs(cur,  in xfs_bmap_extents_to_btree()
763 						be16_to_cpu(block->bb_level)));  in xfs_bmap_extents_to_btree()
771 	xfs_btree_log_recs(cur, abp, 1, be16_to_cpu(ablock->bb_numrecs));  in xfs_bmap_extents_to_btree()
778 	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT, -1L);  in xfs_bmap_extents_to_btree()
780 	xfs_iroot_realloc(ip, -1, whichfork);  in xfs_bmap_extents_to_btree()
781 	ifp->if_format = XFS_DINODE_FMT_EXTENTS;  in xfs_bmap_extents_to_btree()
782 	ASSERT(ifp->if_broot == NULL);  in xfs_bmap_extents_to_btree()
792  * (The bmap-level manipulations are ok, though).
797 	struct xfs_inode	*ip,  in xfs_bmap_local_to_extents_empty()  argument
800 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_local_to_extents_empty()
803 	ASSERT(ifp->if_format == XFS_DINODE_FMT_LOCAL);  in xfs_bmap_local_to_extents_empty()
804 	ASSERT(ifp->if_bytes == 0);  in xfs_bmap_local_to_extents_empty()
805 	ASSERT(ifp->if_nextents == 0);  in xfs_bmap_local_to_extents_empty()
807 	xfs_bmap_forkoff_reset(ip, whichfork);  in xfs_bmap_local_to_extents_empty()
808 	ifp->if_flags &= ~XFS_IFINLINE;  in xfs_bmap_local_to_extents_empty()
809 	ifp->if_flags |= XFS_IFEXTENTS;  in xfs_bmap_local_to_extents_empty()
810 	ifp->if_u1.if_root = NULL;  in xfs_bmap_local_to_extents_empty()
811 	ifp->if_height = 0;  in xfs_bmap_local_to_extents_empty()
812 	ifp->if_format = XFS_DINODE_FMT_EXTENTS;  in xfs_bmap_local_to_extents_empty()
813 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);  in xfs_bmap_local_to_extents_empty()
820 	xfs_inode_t	*ip,		/* incore inode pointer */  in xfs_bmap_local_to_extents()  argument
826 				   struct xfs_inode *ip,  in xfs_bmap_local_to_extents()  argument
833 	xfs_buf_t	*bp;		/* buffer for extent block */  in xfs_bmap_local_to_extents()
841 	ASSERT(!(S_ISREG(VFS_I(ip)->i_mode) && whichfork == XFS_DATA_FORK));  in xfs_bmap_local_to_extents()
842 	ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_local_to_extents()
843 	ASSERT(ifp->if_format == XFS_DINODE_FMT_LOCAL);  in xfs_bmap_local_to_extents()
845 	if (!ifp->if_bytes) {  in xfs_bmap_local_to_extents()
846 		xfs_bmap_local_to_extents_empty(tp, ip, whichfork);  in xfs_bmap_local_to_extents()
853 	ASSERT((ifp->if_flags & (XFS_IFINLINE|XFS_IFEXTENTS)) == XFS_IFINLINE);  in xfs_bmap_local_to_extents()
856 	args.mp = ip->i_mount;  in xfs_bmap_local_to_extents()
857 	xfs_rmap_ino_owner(&args.oinfo, ip->i_ino, whichfork, 0);  in xfs_bmap_local_to_extents()
859 	 * Allocate a block.  We know we need only one, since the  in xfs_bmap_local_to_extents()
862 	if (tp->t_firstblock == NULLFSBLOCK) {  in xfs_bmap_local_to_extents()
863 		args.fsbno = XFS_INO_TO_FSB(args.mp, ip->i_ino);  in xfs_bmap_local_to_extents()
866 		args.fsbno = tp->t_firstblock;  in xfs_bmap_local_to_extents()
878 	tp->t_firstblock = args.fsbno;  in xfs_bmap_local_to_extents()
879 	error = xfs_trans_get_buf(tp, args.mp->m_ddev_targp,  in xfs_bmap_local_to_extents()
881 			args.mp->m_bsize, 0, &bp);  in xfs_bmap_local_to_extents()
886 	 * Initialize the block, copy the data and log the remote buffer.  in xfs_bmap_local_to_extents()
893 	init_fn(tp, bp, ip, ifp);  in xfs_bmap_local_to_extents()
896 	xfs_idata_realloc(ip, -ifp->if_bytes, whichfork);  in xfs_bmap_local_to_extents()
897 	xfs_bmap_local_to_extents_empty(tp, ip, whichfork);  in xfs_bmap_local_to_extents()
900 	ifp->if_u1.if_root = NULL;  in xfs_bmap_local_to_extents()
901 	ifp->if_height = 0;  in xfs_bmap_local_to_extents()
908 	xfs_iext_insert(ip, &icur, &rec, 0);  in xfs_bmap_local_to_extents()
910 	ifp->if_nextents = 1;  in xfs_bmap_local_to_extents()
911 	ip->i_d.di_nblocks = 1;  in xfs_bmap_local_to_extents()
912 	xfs_trans_mod_dquot_byino(tp, ip,  in xfs_bmap_local_to_extents()
927 	xfs_inode_t		*ip,		/* incore inode pointer */  in xfs_bmap_add_attrfork_btree()  argument
935 	mp = ip->i_mount;  in xfs_bmap_add_attrfork_btree()
936 	if (ip->i_df.if_broot_bytes <= XFS_IFORK_DSIZE(ip))  in xfs_bmap_add_attrfork_btree()
939 		cur = xfs_bmbt_init_cursor(mp, tp, ip, XFS_DATA_FORK);  in xfs_bmap_add_attrfork_btree()
945 			error = -EFSCORRUPTED;  in xfs_bmap_add_attrfork_btree()
952 			return -ENOSPC;  in xfs_bmap_add_attrfork_btree()
954 		cur->bc_ino.allocated = 0;  in xfs_bmap_add_attrfork_btree()
969 	struct xfs_inode	*ip,		/* incore inode pointer */  in xfs_bmap_add_attrfork_extents()  argument
975 	if (ip->i_df.if_nextents * sizeof(struct xfs_bmbt_rec) <=  in xfs_bmap_add_attrfork_extents()
976 	    XFS_IFORK_DSIZE(ip))  in xfs_bmap_add_attrfork_extents()
979 	error = xfs_bmap_extents_to_btree(tp, ip, &cur, 0, flags,  in xfs_bmap_add_attrfork_extents()
982 		cur->bc_ino.allocated = 0;  in xfs_bmap_add_attrfork_extents()
991  * conversion. Some are basic and only require special block initialisation
996  * formatting callout. It should be possible - it's just a very complex
1002 	struct xfs_inode	*ip,		/* incore inode pointer */  in xfs_bmap_add_attrfork_local()  argument
1007 	if (ip->i_df.if_bytes <= XFS_IFORK_DSIZE(ip))  in xfs_bmap_add_attrfork_local()
1010 	if (S_ISDIR(VFS_I(ip)->i_mode)) {  in xfs_bmap_add_attrfork_local()
1012 		dargs.geo = ip->i_mount->m_dir_geo;  in xfs_bmap_add_attrfork_local()
1013 		dargs.dp = ip;  in xfs_bmap_add_attrfork_local()
1014 		dargs.total = dargs.geo->fsbcount;  in xfs_bmap_add_attrfork_local()
1020 	if (S_ISLNK(VFS_I(ip)->i_mode))  in xfs_bmap_add_attrfork_local()
1021 		return xfs_bmap_local_to_extents(tp, ip, 1, flags,  in xfs_bmap_add_attrfork_local()
1027 	return -EFSCORRUPTED;  in xfs_bmap_add_attrfork_local()
1033 	struct xfs_inode	*ip,  in xfs_bmap_set_attrforkoff()  argument
1037 	switch (ip->i_df.if_format) {  in xfs_bmap_set_attrforkoff()
1039 		ip->i_d.di_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;  in xfs_bmap_set_attrforkoff()
1044 		ip->i_d.di_forkoff = xfs_attr_shortform_bytesfit(ip, size);  in xfs_bmap_set_attrforkoff()
1045 		if (!ip->i_d.di_forkoff)  in xfs_bmap_set_attrforkoff()
1046 			ip->i_d.di_forkoff = xfs_default_attroffset(ip) >> 3;  in xfs_bmap_set_attrforkoff()
1047 		else if ((ip->i_mount->m_flags & XFS_MOUNT_ATTR2) && version)  in xfs_bmap_set_attrforkoff()
1052 		return -EINVAL;  in xfs_bmap_set_attrforkoff()
1059  * Convert inode from non-attributed to attributed.
1060  * Must not be in a transaction, ip must not be locked.
1064 	xfs_inode_t		*ip,		/* incore inode pointer */  in xfs_bmap_add_attrfork()  argument
1075 	ASSERT(XFS_IFORK_Q(ip) == 0);  in xfs_bmap_add_attrfork()
1077 	mp = ip->i_mount;  in xfs_bmap_add_attrfork()
1078 	ASSERT(!XFS_NOT_DQATTACHED(mp, ip));  in xfs_bmap_add_attrfork()
1082 	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_addafork, blks, 0,  in xfs_bmap_add_attrfork()
1087 	xfs_ilock(ip, XFS_ILOCK_EXCL);  in xfs_bmap_add_attrfork()
1088 	error = xfs_trans_reserve_quota_nblks(tp, ip, blks, 0, rsvd ?  in xfs_bmap_add_attrfork()
1093 	if (XFS_IFORK_Q(ip))  in xfs_bmap_add_attrfork()
1096 	xfs_trans_ijoin(tp, ip, 0);  in xfs_bmap_add_attrfork()
1097 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);  in xfs_bmap_add_attrfork()
1098 	error = xfs_bmap_set_attrforkoff(ip, size, &version);  in xfs_bmap_add_attrfork()
1101 	ASSERT(ip->i_afp == NULL);  in xfs_bmap_add_attrfork()
1103 	ip->i_afp = kmem_cache_zalloc(xfs_ifork_zone,  in xfs_bmap_add_attrfork()
1106 	ip->i_afp->if_format = XFS_DINODE_FMT_EXTENTS;  in xfs_bmap_add_attrfork()
1107 	ip->i_afp->if_flags = XFS_IFEXTENTS;  in xfs_bmap_add_attrfork()
1109 	switch (ip->i_df.if_format) {  in xfs_bmap_add_attrfork()
1111 		error = xfs_bmap_add_attrfork_local(tp, ip, &logflags);  in xfs_bmap_add_attrfork()
1114 		error = xfs_bmap_add_attrfork_extents(tp, ip, &logflags);  in xfs_bmap_add_attrfork()
1117 		error = xfs_bmap_add_attrfork_btree(tp, ip, &logflags);  in xfs_bmap_add_attrfork()
1124 		xfs_trans_log_inode(tp, ip, logflags);  in xfs_bmap_add_attrfork()
1127 	if (!xfs_sb_version_hasattr(&mp->m_sb) ||  in xfs_bmap_add_attrfork()
1128 	   (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {  in xfs_bmap_add_attrfork()
1131 		spin_lock(&mp->m_sb_lock);  in xfs_bmap_add_attrfork()
1132 		if (!xfs_sb_version_hasattr(&mp->m_sb)) {  in xfs_bmap_add_attrfork()
1133 			xfs_sb_version_addattr(&mp->m_sb);  in xfs_bmap_add_attrfork()
1136 		if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) {  in xfs_bmap_add_attrfork()
1137 			xfs_sb_version_addattr2(&mp->m_sb);  in xfs_bmap_add_attrfork()
1140 		spin_unlock(&mp->m_sb_lock);  in xfs_bmap_add_attrfork()
1146 	xfs_iunlock(ip, XFS_ILOCK_EXCL);  in xfs_bmap_add_attrfork()
1151 	xfs_iunlock(ip, XFS_ILOCK_EXCL);  in xfs_bmap_add_attrfork()
1164 /* Stuff every bmbt record from this block into the incore extent map. */
1172 	struct xfs_mount	*mp = cur->bc_mp;  in xfs_iread_bmbt_block()
1173 	struct xfs_inode	*ip = cur->bc_ino.ip;  in xfs_iread_bmbt_block()  local
1174 	struct xfs_btree_block	*block;  in xfs_iread_bmbt_block()  local
1179 	int			whichfork = cur->bc_ino.whichfork;  in xfs_iread_bmbt_block()
1180 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_iread_bmbt_block()
1182 	block = xfs_btree_get_block(cur, level, &bp);  in xfs_iread_bmbt_block()
1185 	num_recs = xfs_btree_get_numrecs(block);  in xfs_iread_bmbt_block()
1186 	if (unlikely(ir->loaded + num_recs > ifp->if_nextents)) {  in xfs_iread_bmbt_block()
1187 		xfs_warn(ip->i_mount, "corrupt dinode %llu, (btree extents).",  in xfs_iread_bmbt_block()
1188 				(unsigned long long)ip->i_ino);  in xfs_iread_bmbt_block()
1189 		xfs_inode_verifier_error(ip, -EFSCORRUPTED, __func__, block,  in xfs_iread_bmbt_block()
1190 				sizeof(*block), __this_address);  in xfs_iread_bmbt_block()
1191 		return -EFSCORRUPTED;  in xfs_iread_bmbt_block()
1195 	frp = XFS_BMBT_REC_ADDR(mp, block, 1);  in xfs_iread_bmbt_block()
1196 	for (j = 0; j < num_recs; j++, frp++, ir->loaded++) {  in xfs_iread_bmbt_block()
1201 		fa = xfs_bmap_validate_extent(ip, whichfork, &new);  in xfs_iread_bmbt_block()
1203 			xfs_inode_verifier_error(ip, -EFSCORRUPTED,  in xfs_iread_bmbt_block()
1206 			return -EFSCORRUPTED;  in xfs_iread_bmbt_block()
1208 		xfs_iext_insert(ip, &ir->icur, &new,  in xfs_iread_bmbt_block()
1210 		trace_xfs_read_extent(ip, &ir->icur,  in xfs_iread_bmbt_block()
1212 		xfs_iext_next(ifp, &ir->icur);  in xfs_iread_bmbt_block()
1219  * Read in extents from a btree-format inode.
1224 	struct xfs_inode	*ip,  in xfs_iread_extents()  argument
1228 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_iread_extents()
1229 	struct xfs_mount	*mp = ip->i_mount;  in xfs_iread_extents()
1233 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));  in xfs_iread_extents()
1235 	if (XFS_IS_CORRUPT(mp, ifp->if_format != XFS_DINODE_FMT_BTREE)) {  in xfs_iread_extents()
1236 		error = -EFSCORRUPTED;  in xfs_iread_extents()
1242 	cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);  in xfs_iread_extents()
1249 	if (XFS_IS_CORRUPT(mp, ir.loaded != ifp->if_nextents)) {  in xfs_iread_extents()
1250 		error = -EFSCORRUPTED;  in xfs_iread_extents()
1255 	ifp->if_flags |= XFS_IFEXTENTS;  in xfs_iread_extents()
1263  * Returns the relative block number of the first unused block(s) in the given
1265  * lowest-address hole if the fork has holes, else the first block past the end
1266  * of fork.  Return 0 if the fork is currently local (in-inode).
1271 	struct xfs_inode	*ip,		/* incore inode */  in xfs_bmap_first_unused()  argument
1273 	xfs_fileoff_t		*first_unused,	/* unused block */  in xfs_bmap_first_unused()
1276 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_first_unused()
1283 	if (ifp->if_format == XFS_DINODE_FMT_LOCAL) {  in xfs_bmap_first_unused()
1290 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmap_first_unused()
1291 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmap_first_unused()
1302 		    got.br_startoff - max >= len)  in xfs_bmap_first_unused()
1313  * Returns the file-relative block number of the last block - 1 before
1321 	struct xfs_inode	*ip,		/* incore inode */  in xfs_bmap_last_before()  argument
1322 	xfs_fileoff_t		*last_block,	/* last block */  in xfs_bmap_last_before()
1325 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_last_before()
1330 	switch (ifp->if_format) {  in xfs_bmap_last_before()
1339 		return -EFSCORRUPTED;  in xfs_bmap_last_before()
1342 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmap_last_before()
1343 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmap_last_before()
1348 	if (!xfs_iext_lookup_extent_before(ip, ifp, last_block, &icur, &got))  in xfs_bmap_last_before()
1356 	struct xfs_inode	*ip,  in xfs_bmap_last_extent()  argument
1361 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_last_extent()
1365 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmap_last_extent()
1366 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmap_last_extent()
1382  * blocks at the end of the file which do not start at the previous data block,
1385  * Returns 1 in bma->aeof if the file (fork) is empty as any new write will be
1397 	bma->aeof = false;  in xfs_bmap_isaeof()
1398 	error = xfs_bmap_last_extent(NULL, bma->ip, whichfork, &rec,  in xfs_bmap_isaeof()
1404 		bma->aeof = true;  in xfs_bmap_isaeof()
1412 	bma->aeof = bma->offset >= rec.br_startoff + rec.br_blockcount ||  in xfs_bmap_isaeof()
1413 		(bma->offset >= rec.br_startoff &&  in xfs_bmap_isaeof()
1419  * Returns the file-relative block number of the first block past eof in
1425 	struct xfs_inode	*ip,  in xfs_bmap_last_offset()  argument
1429 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_last_offset()
1436 	if (ifp->if_format == XFS_DINODE_FMT_LOCAL)  in xfs_bmap_last_offset()
1439 	if (XFS_IS_CORRUPT(ip->i_mount, !xfs_ifork_has_extents(ifp)))  in xfs_bmap_last_offset()
1440 		return -EFSCORRUPTED;  in xfs_bmap_last_offset()
1442 	error = xfs_bmap_last_extent(NULL, ip, whichfork, &rec, &is_empty);  in xfs_bmap_last_offset()
1452  * block or not.  For the data fork we check this matches di_size,
1453  * implying the file's range is 0..bsize-1.
1455 int					/* 1=>1 block, 0=>otherwise */
1457 	struct xfs_inode	*ip,		/* incore inode */  in xfs_bmap_one_block()  argument
1460 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_one_block()
1467 		return XFS_ISIZE(ip) == ip->i_mount->m_sb.sb_blocksize;  in xfs_bmap_one_block()
1469 	if (ifp->if_nextents != 1)  in xfs_bmap_one_block()
1471 	if (ifp->if_format != XFS_DINODE_FMT_EXTENTS)  in xfs_bmap_one_block()
1473 	ASSERT(ifp->if_flags & XFS_IFEXTENTS);  in xfs_bmap_one_block()
1478 		ASSERT(XFS_ISIZE(ip) == ip->i_mount->m_sb.sb_blocksize);  in xfs_bmap_one_block()
1494 	struct xfs_mount	*mp = bma->ip->i_mount;  in xfs_bmap_add_extent_delay_real()
1495 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(bma->ip, whichfork);  in xfs_bmap_add_extent_delay_real()
1496 	struct xfs_bmbt_irec	*new = &bma->got;  in xfs_bmap_add_extent_delay_real()
1511 	ASSERT(!isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_delay_real()
1512 	ASSERT(!bma->cur ||  in xfs_bmap_add_extent_delay_real()
1513 	       (bma->cur->bc_ino.flags & XFS_BTCUR_BMBT_WASDEL));  in xfs_bmap_add_extent_delay_real()
1524 	xfs_iext_get_extent(ifp, &bma->icur, &PREV);  in xfs_bmap_add_extent_delay_real()
1525 	new_endoff = new->br_startoff + new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1527 	ASSERT(PREV.br_startoff <= new->br_startoff);  in xfs_bmap_add_extent_delay_real()
1537 	if (PREV.br_startoff == new->br_startoff)  in xfs_bmap_add_extent_delay_real()
1546 	if (xfs_iext_peek_prev_extent(ifp, &bma->icur, &LEFT)) {  in xfs_bmap_add_extent_delay_real()
1553 	    LEFT.br_startoff + LEFT.br_blockcount == new->br_startoff &&  in xfs_bmap_add_extent_delay_real()
1554 	    LEFT.br_startblock + LEFT.br_blockcount == new->br_startblock &&  in xfs_bmap_add_extent_delay_real()
1555 	    LEFT.br_state == new->br_state &&  in xfs_bmap_add_extent_delay_real()
1556 	    LEFT.br_blockcount + new->br_blockcount <= MAXEXTLEN)  in xfs_bmap_add_extent_delay_real()
1562 	 * Also check for all-three-contiguous being too large.  in xfs_bmap_add_extent_delay_real()
1564 	if (xfs_iext_peek_next_extent(ifp, &bma->icur, &RIGHT)) {  in xfs_bmap_add_extent_delay_real()
1572 	    new->br_startblock + new->br_blockcount == RIGHT.br_startblock &&  in xfs_bmap_add_extent_delay_real()
1573 	    new->br_state == RIGHT.br_state &&  in xfs_bmap_add_extent_delay_real()
1574 	    new->br_blockcount + RIGHT.br_blockcount <= MAXEXTLEN &&  in xfs_bmap_add_extent_delay_real()
1579 	     LEFT.br_blockcount + new->br_blockcount + RIGHT.br_blockcount  in xfs_bmap_add_extent_delay_real()
1597 		xfs_iext_remove(bma->ip, &bma->icur, state);  in xfs_bmap_add_extent_delay_real()
1598 		xfs_iext_remove(bma->ip, &bma->icur, state);  in xfs_bmap_add_extent_delay_real()
1599 		xfs_iext_prev(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1600 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);  in xfs_bmap_add_extent_delay_real()
1601 		ifp->if_nextents--;  in xfs_bmap_add_extent_delay_real()
1603 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1607 			error = xfs_bmbt_lookup_eq(bma->cur, &RIGHT, &i);  in xfs_bmap_add_extent_delay_real()
1611 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1614 			error = xfs_btree_delete(bma->cur, &i);  in xfs_bmap_add_extent_delay_real()
1618 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1621 			error = xfs_btree_decrement(bma->cur, 0, &i);  in xfs_bmap_add_extent_delay_real()
1625 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1628 			error = xfs_bmbt_update(bma->cur, &LEFT);  in xfs_bmap_add_extent_delay_real()
1642 		xfs_iext_remove(bma->ip, &bma->icur, state);  in xfs_bmap_add_extent_delay_real()
1643 		xfs_iext_prev(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1644 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);  in xfs_bmap_add_extent_delay_real()
1646 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1650 			error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);  in xfs_bmap_add_extent_delay_real()
1654 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1657 			error = xfs_bmbt_update(bma->cur, &LEFT);  in xfs_bmap_add_extent_delay_real()
1667 		 * with delay -> unwritten extent allocation here because the  in xfs_bmap_add_extent_delay_real()
1670 		PREV.br_startblock = new->br_startblock;  in xfs_bmap_add_extent_delay_real()
1672 		PREV.br_state = new->br_state;  in xfs_bmap_add_extent_delay_real()
1674 		xfs_iext_next(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1675 		xfs_iext_remove(bma->ip, &bma->icur, state);  in xfs_bmap_add_extent_delay_real()
1676 		xfs_iext_prev(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1677 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);  in xfs_bmap_add_extent_delay_real()
1679 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1683 			error = xfs_bmbt_lookup_eq(bma->cur, &RIGHT, &i);  in xfs_bmap_add_extent_delay_real()
1687 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1690 			error = xfs_bmbt_update(bma->cur, &PREV);  in xfs_bmap_add_extent_delay_real()
1702 		PREV.br_startblock = new->br_startblock;  in xfs_bmap_add_extent_delay_real()
1703 		PREV.br_state = new->br_state;  in xfs_bmap_add_extent_delay_real()
1704 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);  in xfs_bmap_add_extent_delay_real()
1705 		ifp->if_nextents++;  in xfs_bmap_add_extent_delay_real()
1707 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1711 			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);  in xfs_bmap_add_extent_delay_real()
1715 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1718 			error = xfs_btree_insert(bma->cur, &i);  in xfs_bmap_add_extent_delay_real()
1722 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1734 		temp = PREV.br_blockcount - new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1735 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),  in xfs_bmap_add_extent_delay_real()
1738 		LEFT.br_blockcount += new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1741 		PREV.br_startoff += new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1744 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);  in xfs_bmap_add_extent_delay_real()
1745 		xfs_iext_prev(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1746 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);  in xfs_bmap_add_extent_delay_real()
1748 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1752 			error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);  in xfs_bmap_add_extent_delay_real()
1756 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1759 			error = xfs_bmbt_update(bma->cur, &LEFT);  in xfs_bmap_add_extent_delay_real()
1770 		xfs_iext_update_extent(bma->ip, state, &bma->icur, new);  in xfs_bmap_add_extent_delay_real()
1771 		ifp->if_nextents++;  in xfs_bmap_add_extent_delay_real()
1773 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1777 			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);  in xfs_bmap_add_extent_delay_real()
1781 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1784 			error = xfs_btree_insert(bma->cur, &i);  in xfs_bmap_add_extent_delay_real()
1788 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1793 		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {  in xfs_bmap_add_extent_delay_real()
1794 			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,  in xfs_bmap_add_extent_delay_real()
1795 					&bma->cur, 1, &tmp_rval, whichfork);  in xfs_bmap_add_extent_delay_real()
1801 		temp = PREV.br_blockcount - new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1802 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),  in xfs_bmap_add_extent_delay_real()
1803 			startblockval(PREV.br_startblock) -  in xfs_bmap_add_extent_delay_real()
1804 			(bma->cur ? bma->cur->bc_ino.allocated : 0));  in xfs_bmap_add_extent_delay_real()
1809 		xfs_iext_next(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1810 		xfs_iext_insert(bma->ip, &bma->icur, &PREV, state);  in xfs_bmap_add_extent_delay_real()
1811 		xfs_iext_prev(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1820 		RIGHT.br_startoff = new->br_startoff;  in xfs_bmap_add_extent_delay_real()
1821 		RIGHT.br_startblock = new->br_startblock;  in xfs_bmap_add_extent_delay_real()
1822 		RIGHT.br_blockcount += new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1824 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1828 			error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);  in xfs_bmap_add_extent_delay_real()
1832 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1835 			error = xfs_bmbt_update(bma->cur, &RIGHT);  in xfs_bmap_add_extent_delay_real()
1840 		temp = PREV.br_blockcount - new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1841 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),  in xfs_bmap_add_extent_delay_real()
1847 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);  in xfs_bmap_add_extent_delay_real()
1848 		xfs_iext_next(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1849 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &RIGHT);  in xfs_bmap_add_extent_delay_real()
1857 		xfs_iext_update_extent(bma->ip, state, &bma->icur, new);  in xfs_bmap_add_extent_delay_real()
1858 		ifp->if_nextents++;  in xfs_bmap_add_extent_delay_real()
1860 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1864 			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);  in xfs_bmap_add_extent_delay_real()
1868 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1871 			error = xfs_btree_insert(bma->cur, &i);  in xfs_bmap_add_extent_delay_real()
1875 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1880 		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {  in xfs_bmap_add_extent_delay_real()
1881 			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,  in xfs_bmap_add_extent_delay_real()
1882 				&bma->cur, 1, &tmp_rval, whichfork);  in xfs_bmap_add_extent_delay_real()
1888 		temp = PREV.br_blockcount - new->br_blockcount;  in xfs_bmap_add_extent_delay_real()
1889 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),  in xfs_bmap_add_extent_delay_real()
1890 			startblockval(PREV.br_startblock) -  in xfs_bmap_add_extent_delay_real()
1891 			(bma->cur ? bma->cur->bc_ino.allocated : 0));  in xfs_bmap_add_extent_delay_real()
1895 		xfs_iext_insert(bma->ip, &bma->icur, &PREV, state);  in xfs_bmap_add_extent_delay_real()
1896 		xfs_iext_next(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1929 			PREV.br_startoff + PREV.br_blockcount - new_endoff;  in xfs_bmap_add_extent_delay_real()
1931 			nullstartblock(xfs_bmap_worst_indlen(bma->ip,  in xfs_bmap_add_extent_delay_real()
1935 		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;  in xfs_bmap_add_extent_delay_real()
1937 			nullstartblock(xfs_bmap_worst_indlen(bma->ip,  in xfs_bmap_add_extent_delay_real()
1939 		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);  in xfs_bmap_add_extent_delay_real()
1941 		xfs_iext_next(ifp, &bma->icur);  in xfs_bmap_add_extent_delay_real()
1942 		xfs_iext_insert(bma->ip, &bma->icur, &RIGHT, state);  in xfs_bmap_add_extent_delay_real()
1943 		xfs_iext_insert(bma->ip, &bma->icur, &LEFT, state);  in xfs_bmap_add_extent_delay_real()
1944 		ifp->if_nextents++;  in xfs_bmap_add_extent_delay_real()
1946 		if (bma->cur == NULL)  in xfs_bmap_add_extent_delay_real()
1950 			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);  in xfs_bmap_add_extent_delay_real()
1954 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1957 			error = xfs_btree_insert(bma->cur, &i);  in xfs_bmap_add_extent_delay_real()
1961 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_delay_real()
1966 		if (xfs_bmap_needs_btree(bma->ip, whichfork)) {  in xfs_bmap_add_extent_delay_real()
1967 			error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,  in xfs_bmap_add_extent_delay_real()
1968 					&bma->cur, 1, &tmp_rval, whichfork);  in xfs_bmap_add_extent_delay_real()
1992 	if (!(bma->flags & XFS_BMAPI_NORMAP))  in xfs_bmap_add_extent_delay_real()
1993 		xfs_rmap_map_extent(bma->tp, bma->ip, whichfork, new);  in xfs_bmap_add_extent_delay_real()
1996 	if (xfs_bmap_needs_btree(bma->ip, whichfork)) {  in xfs_bmap_add_extent_delay_real()
1999 		ASSERT(bma->cur == NULL);  in xfs_bmap_add_extent_delay_real()
2000 		error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,  in xfs_bmap_add_extent_delay_real()
2001 				&bma->cur, da_old > 0, &tmp_logflags,  in xfs_bmap_add_extent_delay_real()
2003 		bma->logflags |= tmp_logflags;  in xfs_bmap_add_extent_delay_real()
2009 		xfs_mod_delalloc(mp, (int64_t)da_new - da_old);  in xfs_bmap_add_extent_delay_real()
2011 	if (bma->cur) {  in xfs_bmap_add_extent_delay_real()
2012 		da_new += bma->cur->bc_ino.allocated;  in xfs_bmap_add_extent_delay_real()
2013 		bma->cur->bc_ino.allocated = 0;  in xfs_bmap_add_extent_delay_real()
2019 		error = xfs_mod_fdblocks(mp, (int64_t)(da_old - da_new),  in xfs_bmap_add_extent_delay_real()
2023 	xfs_bmap_check_leaf_extents(bma->cur, bma->ip, whichfork);  in xfs_bmap_add_extent_delay_real()
2026 		bma->logflags |= rval;  in xfs_bmap_add_extent_delay_real()
2039 	xfs_inode_t		*ip,	/* incore inode pointer */  in xfs_bmap_add_extent_unwritten_real()  argument
2055 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_add_extent_unwritten_real()
2061 	ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_add_extent_unwritten_real()
2063 	ASSERT(!isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_unwritten_real()
2076 	ASSERT(new->br_state != PREV.br_state);  in xfs_bmap_add_extent_unwritten_real()
2077 	new_endoff = new->br_startoff + new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2078 	ASSERT(PREV.br_startoff <= new->br_startoff);  in xfs_bmap_add_extent_unwritten_real()
2085 	if (PREV.br_startoff == new->br_startoff)  in xfs_bmap_add_extent_unwritten_real()
2101 	    LEFT.br_startoff + LEFT.br_blockcount == new->br_startoff &&  in xfs_bmap_add_extent_unwritten_real()
2102 	    LEFT.br_startblock + LEFT.br_blockcount == new->br_startblock &&  in xfs_bmap_add_extent_unwritten_real()
2103 	    LEFT.br_state == new->br_state &&  in xfs_bmap_add_extent_unwritten_real()
2104 	    LEFT.br_blockcount + new->br_blockcount <= MAXEXTLEN)  in xfs_bmap_add_extent_unwritten_real()
2110 	 * Also check for all-three-contiguous being too large.  in xfs_bmap_add_extent_unwritten_real()
2120 	    new->br_startblock + new->br_blockcount == RIGHT.br_startblock &&  in xfs_bmap_add_extent_unwritten_real()
2121 	    new->br_state == RIGHT.br_state &&  in xfs_bmap_add_extent_unwritten_real()
2122 	    new->br_blockcount + RIGHT.br_blockcount <= MAXEXTLEN &&  in xfs_bmap_add_extent_unwritten_real()
2127 	     LEFT.br_blockcount + new->br_blockcount + RIGHT.br_blockcount  in xfs_bmap_add_extent_unwritten_real()
2144 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_add_extent_unwritten_real()
2145 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_add_extent_unwritten_real()
2147 		xfs_iext_update_extent(ip, state, icur, &LEFT);  in xfs_bmap_add_extent_unwritten_real()
2148 		ifp->if_nextents -= 2;  in xfs_bmap_add_extent_unwritten_real()
2157 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2163 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2169 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2175 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2181 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2197 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_add_extent_unwritten_real()
2199 		xfs_iext_update_extent(ip, state, icur, &LEFT);  in xfs_bmap_add_extent_unwritten_real()
2200 		ifp->if_nextents--;  in xfs_bmap_add_extent_unwritten_real()
2209 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2215 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2221 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2236 		PREV.br_state = new->br_state;  in xfs_bmap_add_extent_unwritten_real()
2239 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_add_extent_unwritten_real()
2241 		xfs_iext_update_extent(ip, state, icur, &PREV);  in xfs_bmap_add_extent_unwritten_real()
2242 		ifp->if_nextents--;  in xfs_bmap_add_extent_unwritten_real()
2252 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2258 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2264 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2279 		PREV.br_state = new->br_state;  in xfs_bmap_add_extent_unwritten_real()
2280 		xfs_iext_update_extent(ip, state, icur, &PREV);  in xfs_bmap_add_extent_unwritten_real()
2290 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2304 		LEFT.br_blockcount += new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2307 		PREV.br_startoff += new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2308 		PREV.br_startblock += new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2309 		PREV.br_blockcount -= new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2311 		xfs_iext_update_extent(ip, state, icur, &PREV);  in xfs_bmap_add_extent_unwritten_real()
2313 		xfs_iext_update_extent(ip, state, icur, &LEFT);  in xfs_bmap_add_extent_unwritten_real()
2323 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2344 		PREV.br_startoff += new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2345 		PREV.br_startblock += new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2346 		PREV.br_blockcount -= new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2348 		xfs_iext_update_extent(ip, state, icur, &PREV);  in xfs_bmap_add_extent_unwritten_real()
2349 		xfs_iext_insert(ip, icur, new, state);  in xfs_bmap_add_extent_unwritten_real()
2350 		ifp->if_nextents++;  in xfs_bmap_add_extent_unwritten_real()
2360 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2366 			cur->bc_rec.b = *new;  in xfs_bmap_add_extent_unwritten_real()
2370 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2382 		PREV.br_blockcount -= new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2384 		RIGHT.br_startoff = new->br_startoff;  in xfs_bmap_add_extent_unwritten_real()
2385 		RIGHT.br_startblock = new->br_startblock;  in xfs_bmap_add_extent_unwritten_real()
2386 		RIGHT.br_blockcount += new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2388 		xfs_iext_update_extent(ip, state, icur, &PREV);  in xfs_bmap_add_extent_unwritten_real()
2390 		xfs_iext_update_extent(ip, state, icur, &RIGHT);  in xfs_bmap_add_extent_unwritten_real()
2400 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2421 		PREV.br_blockcount -= new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2423 		xfs_iext_update_extent(ip, state, icur, &PREV);  in xfs_bmap_add_extent_unwritten_real()
2425 		xfs_iext_insert(ip, icur, new, state);  in xfs_bmap_add_extent_unwritten_real()
2426 		ifp->if_nextents++;  in xfs_bmap_add_extent_unwritten_real()
2436 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2446 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2452 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2465 		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;  in xfs_bmap_add_extent_unwritten_real()
2470 			old.br_startoff + old.br_blockcount - new_endoff;  in xfs_bmap_add_extent_unwritten_real()
2471 		r[1].br_startblock = new->br_startblock + new->br_blockcount;  in xfs_bmap_add_extent_unwritten_real()
2474 		xfs_iext_update_extent(ip, state, icur, &PREV);  in xfs_bmap_add_extent_unwritten_real()
2476 		xfs_iext_insert(ip, icur, &r[1], state);  in xfs_bmap_add_extent_unwritten_real()
2477 		xfs_iext_insert(ip, icur, &r[0], state);  in xfs_bmap_add_extent_unwritten_real()
2478 		ifp->if_nextents += 2;  in xfs_bmap_add_extent_unwritten_real()
2488 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2491 			/* new right extent - oldext */  in xfs_bmap_add_extent_unwritten_real()
2495 			/* new left extent - oldext */  in xfs_bmap_add_extent_unwritten_real()
2496 			cur->bc_rec.b = PREV;  in xfs_bmap_add_extent_unwritten_real()
2500 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2512 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2515 			/* new middle extent - newext */  in xfs_bmap_add_extent_unwritten_real()
2519 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_unwritten_real()
2539 	xfs_rmap_convert_extent(mp, tp, ip, whichfork, new);  in xfs_bmap_add_extent_unwritten_real()
2542 	if (xfs_bmap_needs_btree(ip, whichfork)) {  in xfs_bmap_add_extent_unwritten_real()
2546 		error = xfs_bmap_extents_to_btree(tp, ip, &cur, 0,  in xfs_bmap_add_extent_unwritten_real()
2555 		cur->bc_ino.allocated = 0;  in xfs_bmap_add_extent_unwritten_real()
2559 	xfs_bmap_check_leaf_extents(*curp, ip, whichfork);  in xfs_bmap_add_extent_unwritten_real()
2573 	xfs_inode_t		*ip,	/* incore inode pointer */  in xfs_bmap_add_extent_hole_delay()  argument
2586 	ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_add_extent_hole_delay()
2587 	ASSERT(isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_hole_delay()
2600 	 * If it doesn't exist, we're converting the hole at end-of-file.  in xfs_bmap_add_extent_hole_delay()
2613 	    left.br_startoff + left.br_blockcount == new->br_startoff &&  in xfs_bmap_add_extent_hole_delay()
2614 	    left.br_blockcount + new->br_blockcount <= MAXEXTLEN)  in xfs_bmap_add_extent_hole_delay()
2618 	    new->br_startoff + new->br_blockcount == right.br_startoff &&  in xfs_bmap_add_extent_hole_delay()
2619 	    new->br_blockcount + right.br_blockcount <= MAXEXTLEN &&  in xfs_bmap_add_extent_hole_delay()
2621 	     (left.br_blockcount + new->br_blockcount +  in xfs_bmap_add_extent_hole_delay()
2635 		temp = left.br_blockcount + new->br_blockcount +  in xfs_bmap_add_extent_hole_delay()
2639 			startblockval(new->br_startblock) +  in xfs_bmap_add_extent_hole_delay()
2641 		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),  in xfs_bmap_add_extent_hole_delay()
2646 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_add_extent_hole_delay()
2648 		xfs_iext_update_extent(ip, state, icur, &left);  in xfs_bmap_add_extent_hole_delay()
2657 		temp = left.br_blockcount + new->br_blockcount;  in xfs_bmap_add_extent_hole_delay()
2660 			startblockval(new->br_startblock);  in xfs_bmap_add_extent_hole_delay()
2661 		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),  in xfs_bmap_add_extent_hole_delay()
2667 		xfs_iext_update_extent(ip, state, icur, &left);  in xfs_bmap_add_extent_hole_delay()
2676 		temp = new->br_blockcount + right.br_blockcount;  in xfs_bmap_add_extent_hole_delay()
2677 		oldlen = startblockval(new->br_startblock) +  in xfs_bmap_add_extent_hole_delay()
2679 		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),  in xfs_bmap_add_extent_hole_delay()
2681 		right.br_startoff = new->br_startoff;  in xfs_bmap_add_extent_hole_delay()
2684 		xfs_iext_update_extent(ip, state, icur, &right);  in xfs_bmap_add_extent_hole_delay()
2694 		xfs_iext_insert(ip, icur, new, state);  in xfs_bmap_add_extent_hole_delay()
2699 		xfs_mod_fdblocks(ip->i_mount, (int64_t)(oldlen - newlen),  in xfs_bmap_add_extent_hole_delay()
2704 		xfs_mod_delalloc(ip->i_mount, (int64_t)newlen - oldlen);  in xfs_bmap_add_extent_hole_delay()
2714 	struct xfs_inode	*ip,  in xfs_bmap_add_extent_hole_real()  argument
2722 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_add_extent_hole_real()
2723 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_add_extent_hole_real()
2733 	ASSERT(!isnullstartblock(new->br_startblock));  in xfs_bmap_add_extent_hole_real()
2734 	ASSERT(!cur || !(cur->bc_ino.flags & XFS_BTCUR_BMBT_WASDEL));  in xfs_bmap_add_extent_hole_real()
2762 	    left.br_startoff + left.br_blockcount == new->br_startoff &&  in xfs_bmap_add_extent_hole_real()
2763 	    left.br_startblock + left.br_blockcount == new->br_startblock &&  in xfs_bmap_add_extent_hole_real()
2764 	    left.br_state == new->br_state &&  in xfs_bmap_add_extent_hole_real()
2765 	    left.br_blockcount + new->br_blockcount <= MAXEXTLEN)  in xfs_bmap_add_extent_hole_real()
2769 	    new->br_startoff + new->br_blockcount == right.br_startoff &&  in xfs_bmap_add_extent_hole_real()
2770 	    new->br_startblock + new->br_blockcount == right.br_startblock &&  in xfs_bmap_add_extent_hole_real()
2771 	    new->br_state == right.br_state &&  in xfs_bmap_add_extent_hole_real()
2772 	    new->br_blockcount + right.br_blockcount <= MAXEXTLEN &&  in xfs_bmap_add_extent_hole_real()
2774 	     left.br_blockcount + new->br_blockcount +  in xfs_bmap_add_extent_hole_real()
2789 		left.br_blockcount += new->br_blockcount + right.br_blockcount;  in xfs_bmap_add_extent_hole_real()
2791 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_add_extent_hole_real()
2793 		xfs_iext_update_extent(ip, state, icur, &left);  in xfs_bmap_add_extent_hole_real()
2794 		ifp->if_nextents--;  in xfs_bmap_add_extent_hole_real()
2804 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_hole_real()
2811 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_hole_real()
2818 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_hole_real()
2834 		left.br_blockcount += new->br_blockcount;  in xfs_bmap_add_extent_hole_real()
2837 		xfs_iext_update_extent(ip, state, icur, &left);  in xfs_bmap_add_extent_hole_real()
2847 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_hole_real()
2864 		right.br_startoff = new->br_startoff;  in xfs_bmap_add_extent_hole_real()
2865 		right.br_startblock = new->br_startblock;  in xfs_bmap_add_extent_hole_real()
2866 		right.br_blockcount += new->br_blockcount;  in xfs_bmap_add_extent_hole_real()
2867 		xfs_iext_update_extent(ip, state, icur, &right);  in xfs_bmap_add_extent_hole_real()
2877 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_hole_real()
2892 		xfs_iext_insert(ip, icur, new, state);  in xfs_bmap_add_extent_hole_real()
2893 		ifp->if_nextents++;  in xfs_bmap_add_extent_hole_real()
2903 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_hole_real()
2910 				error = -EFSCORRUPTED;  in xfs_bmap_add_extent_hole_real()
2919 		xfs_rmap_map_extent(tp, ip, whichfork, new);  in xfs_bmap_add_extent_hole_real()
2922 	if (xfs_bmap_needs_btree(ip, whichfork)) {  in xfs_bmap_add_extent_hole_real()
2926 		error = xfs_bmap_extents_to_btree(tp, ip, curp, 0,  in xfs_bmap_add_extent_hole_real()
2936 		cur->bc_ino.allocated = 0;  in xfs_bmap_add_extent_hole_real()
2938 	xfs_bmap_check_leaf_extents(cur, ip, whichfork);  in xfs_bmap_add_extent_hole_real()
2958 	int		eof,		/* is extent at end-of-file? */  in xfs_bmap_extsize_align()
2985 	    (orig_off >= gotp->br_startoff) &&  in xfs_bmap_extsize_align()
2986 	    (orig_end <= gotp->br_startoff + gotp->br_blockcount)) {  in xfs_bmap_extsize_align()
3000 		align_off -= temp;  in xfs_bmap_extsize_align()
3006 		align_alen += extsz - temp;  in xfs_bmap_extsize_align()
3017 		align_alen -= extsz;  in xfs_bmap_extsize_align()
3021 	 * If the previous block overlaps with this proposed allocation  in xfs_bmap_extsize_align()
3024 	if (prevp->br_startoff != NULLFILEOFF) {  in xfs_bmap_extsize_align()
3025 		if (prevp->br_startblock == HOLESTARTBLOCK)  in xfs_bmap_extsize_align()
3026 			prevo = prevp->br_startoff;  in xfs_bmap_extsize_align()
3028 			prevo = prevp->br_startoff + prevp->br_blockcount;  in xfs_bmap_extsize_align()
3034 	 * If the next block overlaps with this proposed allocation  in xfs_bmap_extsize_align()
3037 	 * This may of course make the start overlap previous block,  in xfs_bmap_extsize_align()
3038 	 * and if we hit the offset 0 limit then the next block  in xfs_bmap_extsize_align()
3041 	if (!eof && gotp->br_startoff != NULLFILEOFF) {  in xfs_bmap_extsize_align()
3042 		if ((delay && gotp->br_startblock == HOLESTARTBLOCK) ||  in xfs_bmap_extsize_align()
3043 		    (!delay && gotp->br_startblock == DELAYSTARTBLOCK))  in xfs_bmap_extsize_align()
3044 			nexto = gotp->br_startoff + gotp->br_blockcount;  in xfs_bmap_extsize_align()
3046 			nexto = gotp->br_startoff;  in xfs_bmap_extsize_align()
3052 		align_off = nexto > align_alen ? nexto - align_alen : 0;  in xfs_bmap_extsize_align()
3065 		align_alen = nexto - align_off;  in xfs_bmap_extsize_align()
3072 	if (rt && (temp = (align_alen % mp->m_sb.sb_rextsize))) {  in xfs_bmap_extsize_align()
3079 		    align_alen - temp < orig_alen)  in xfs_bmap_extsize_align()
3080 			return -EINVAL;  in xfs_bmap_extsize_align()
3085 			align_alen -= temp;  in xfs_bmap_extsize_align()
3091 		else if (align_off + align_alen - temp >= orig_end)  in xfs_bmap_extsize_align()
3092 			align_alen -= temp;  in xfs_bmap_extsize_align()
3097 			align_alen -= orig_off - align_off;  in xfs_bmap_extsize_align()
3099 			align_alen -= align_alen % mp->m_sb.sb_rextsize;  in xfs_bmap_extsize_align()
3105 			return -EINVAL;  in xfs_bmap_extsize_align()
3114 	if (!eof && gotp->br_startoff != NULLFILEOFF)  in xfs_bmap_extsize_align()
3115 		ASSERT(align_off + align_alen <= gotp->br_startoff);  in xfs_bmap_extsize_align()
3116 	if (prevp->br_startoff != NULLFILEOFF)  in xfs_bmap_extsize_align()
3117 		ASSERT(align_off >= prevp->br_startoff + prevp->br_blockcount);  in xfs_bmap_extsize_align()
3131 	xfs_fsblock_t	adjust;		/* adjustment to block numbers */  in xfs_bmap_adjacent()
3132 	xfs_agnumber_t	fb_agno;	/* ag number of ap->firstblock */  in xfs_bmap_adjacent()
3134 	int		nullfb;		/* true if ap->firstblock isn't set */  in xfs_bmap_adjacent()
3139 		(x) < mp->m_sb.sb_rblocks : \  in xfs_bmap_adjacent()
3141 		XFS_FSB_TO_AGNO(mp, x) < mp->m_sb.sb_agcount && \  in xfs_bmap_adjacent()
3142 		XFS_FSB_TO_AGBNO(mp, x) < mp->m_sb.sb_agblocks)  in xfs_bmap_adjacent()
3144 	mp = ap->ip->i_mount;  in xfs_bmap_adjacent()
3145 	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;  in xfs_bmap_adjacent()
3146 	rt = XFS_IS_REALTIME_INODE(ap->ip) &&  in xfs_bmap_adjacent()
3147 		(ap->datatype & XFS_ALLOC_USERDATA);  in xfs_bmap_adjacent()
3149 							ap->tp->t_firstblock);  in xfs_bmap_adjacent()
3151 	 * If allocating at eof, and there's a previous real block,  in xfs_bmap_adjacent()
3152 	 * try to use its last block as our starting point.  in xfs_bmap_adjacent()
3154 	if (ap->eof && ap->prev.br_startoff != NULLFILEOFF &&  in xfs_bmap_adjacent()
3155 	    !isnullstartblock(ap->prev.br_startblock) &&  in xfs_bmap_adjacent()
3156 	    ISVALID(ap->prev.br_startblock + ap->prev.br_blockcount,  in xfs_bmap_adjacent()
3157 		    ap->prev.br_startblock)) {  in xfs_bmap_adjacent()
3158 		ap->blkno = ap->prev.br_startblock + ap->prev.br_blockcount;  in xfs_bmap_adjacent()
3162 		adjust = ap->offset -  in xfs_bmap_adjacent()
3163 			(ap->prev.br_startoff + ap->prev.br_blockcount);  in xfs_bmap_adjacent()
3165 		    ISVALID(ap->blkno + adjust, ap->prev.br_startblock))  in xfs_bmap_adjacent()
3166 			ap->blkno += adjust;  in xfs_bmap_adjacent()
3173 	else if (!ap->eof) {  in xfs_bmap_adjacent()
3174 		xfs_fsblock_t	gotbno;		/* right side block number */  in xfs_bmap_adjacent()
3176 		xfs_fsblock_t	prevbno;	/* left side block number */  in xfs_bmap_adjacent()
3180 		 * If there's a previous (left) block, select a requested  in xfs_bmap_adjacent()
3181 		 * start block based on it.  in xfs_bmap_adjacent()
3183 		if (ap->prev.br_startoff != NULLFILEOFF &&  in xfs_bmap_adjacent()
3184 		    !isnullstartblock(ap->prev.br_startblock) &&  in xfs_bmap_adjacent()
3185 		    (prevbno = ap->prev.br_startblock +  in xfs_bmap_adjacent()
3186 			       ap->prev.br_blockcount) &&  in xfs_bmap_adjacent()
3187 		    ISVALID(prevbno, ap->prev.br_startblock)) {  in xfs_bmap_adjacent()
3189 			 * Calculate gap to end of previous block.  in xfs_bmap_adjacent()
3191 			adjust = prevdiff = ap->offset -  in xfs_bmap_adjacent()
3192 				(ap->prev.br_startoff +  in xfs_bmap_adjacent()
3193 				 ap->prev.br_blockcount);  in xfs_bmap_adjacent()
3195 			 * Figure the startblock based on the previous block's  in xfs_bmap_adjacent()
3199 			 * allocating, or using it gives us an invalid block  in xfs_bmap_adjacent()
3200 			 * number, then just use the end of the previous block.  in xfs_bmap_adjacent()
3202 			if (prevdiff <= XFS_ALLOC_GAP_UNITS * ap->length &&  in xfs_bmap_adjacent()
3204 				    ap->prev.br_startblock))  in xfs_bmap_adjacent()
3217 		 * No previous block or can't follow it, just default.  in xfs_bmap_adjacent()
3222 		 * If there's a following (right) block, select a requested  in xfs_bmap_adjacent()
3223 		 * start block based on it.  in xfs_bmap_adjacent()
3225 		if (!isnullstartblock(ap->got.br_startblock)) {  in xfs_bmap_adjacent()
3227 			 * Calculate gap to start of next block.  in xfs_bmap_adjacent()
3229 			adjust = gotdiff = ap->got.br_startoff - ap->offset;  in xfs_bmap_adjacent()
3231 			 * Figure the startblock based on the next block's  in xfs_bmap_adjacent()
3234 			gotbno = ap->got.br_startblock;  in xfs_bmap_adjacent()
3238 			 * allocating, or using it gives us an invalid block  in xfs_bmap_adjacent()
3239 			 * number, then just use the start of the next block  in xfs_bmap_adjacent()
3242 			if (gotdiff <= XFS_ALLOC_GAP_UNITS * ap->length &&  in xfs_bmap_adjacent()
3243 			    ISVALID(gotbno - gotdiff, gotbno))  in xfs_bmap_adjacent()
3244 				gotbno -= adjust;  in xfs_bmap_adjacent()
3245 			else if (ISVALID(gotbno - ap->length, gotbno)) {  in xfs_bmap_adjacent()
3246 				gotbno -= ap->length;  in xfs_bmap_adjacent()
3247 				gotdiff += adjust - ap->length;  in xfs_bmap_adjacent()
3259 		 * No next block, just default.  in xfs_bmap_adjacent()
3265 		 * one, else ap->blkno is already set (to 0 or the inode block).  in xfs_bmap_adjacent()
3268 			ap->blkno = prevdiff <= gotdiff ? prevbno : gotbno;  in xfs_bmap_adjacent()
3270 			ap->blkno = prevbno;  in xfs_bmap_adjacent()
3272 			ap->blkno = gotbno;  in xfs_bmap_adjacent()
3284 	struct xfs_mount	*mp = tp->t_mountp;  in xfs_bmap_longest_free_extent()
3290 	if (!pag->pagf_init) {  in xfs_bmap_longest_free_extent()
3294 			if (error == -EAGAIN) {  in xfs_bmap_longest_free_extent()
3320 	if (notinit || *blen < ap->minlen) {  in xfs_bmap_select_minlen()
3325 		args->minlen = ap->minlen;  in xfs_bmap_select_minlen()
3326 	} else if (*blen < args->maxlen) {  in xfs_bmap_select_minlen()
3331 		args->minlen = *blen;  in xfs_bmap_select_minlen()
3337 		args->minlen = args->maxlen;  in xfs_bmap_select_minlen()
3347 	struct xfs_mount	*mp = ap->ip->i_mount;  in xfs_bmap_btalloc_nullfb()
3352 	args->type = XFS_ALLOCTYPE_START_BNO;  in xfs_bmap_btalloc_nullfb()
3353 	args->total = ap->total;  in xfs_bmap_btalloc_nullfb()
3355 	startag = ag = XFS_FSB_TO_AGNO(mp, args->fsbno);  in xfs_bmap_btalloc_nullfb()
3359 	while (*blen < args->maxlen) {  in xfs_bmap_btalloc_nullfb()
3360 		error = xfs_bmap_longest_free_extent(args->tp, ag, blen,  in xfs_bmap_btalloc_nullfb()
3365 		if (++ag == mp->m_sb.sb_agcount)  in xfs_bmap_btalloc_nullfb()
3381 	struct xfs_mount	*mp = ap->ip->i_mount;  in xfs_bmap_btalloc_filestreams()
3386 	args->type = XFS_ALLOCTYPE_NEAR_BNO;  in xfs_bmap_btalloc_filestreams()
3387 	args->total = ap->total;  in xfs_bmap_btalloc_filestreams()
3389 	ag = XFS_FSB_TO_AGNO(mp, args->fsbno);  in xfs_bmap_btalloc_filestreams()
3393 	error = xfs_bmap_longest_free_extent(args->tp, ag, blen, &notinit);  in xfs_bmap_btalloc_filestreams()
3397 	if (*blen < args->maxlen) {  in xfs_bmap_btalloc_filestreams()
3402 		error = xfs_bmap_longest_free_extent(args->tp, ag, blen,  in xfs_bmap_btalloc_filestreams()
3415 	ap->blkno = args->fsbno = XFS_AGB_TO_FSB(mp, ag, 0);  in xfs_bmap_btalloc_filestreams()
3425 	if (ap->flags & XFS_BMAPI_COWFORK) {  in xfs_bmap_btalloc_accounting()
3427 		 * COW fork blocks are in-core only and thus are treated as  in xfs_bmap_btalloc_accounting()
3428 		 * in-core quota reservation (like delalloc blocks) even when  in xfs_bmap_btalloc_accounting()
3435 		if (ap->wasdel) {  in xfs_bmap_btalloc_accounting()
3436 			xfs_mod_delalloc(ap->ip->i_mount, -(int64_t)args->len);  in xfs_bmap_btalloc_accounting()
3442 		 * has acquired in-core quota reservation for this extent.  in xfs_bmap_btalloc_accounting()
3448 		ap->ip->i_delayed_blks += args->len;  in xfs_bmap_btalloc_accounting()
3449 		xfs_trans_mod_dquot_byino(ap->tp, ap->ip, XFS_TRANS_DQ_RES_BLKS,  in xfs_bmap_btalloc_accounting()
3450 				-(long)args->len);  in xfs_bmap_btalloc_accounting()
3455 	ap->ip->i_d.di_nblocks += args->len;  in xfs_bmap_btalloc_accounting()
3456 	xfs_trans_log_inode(ap->tp, ap->ip, XFS_ILOG_CORE);  in xfs_bmap_btalloc_accounting()
3457 	if (ap->wasdel) {  in xfs_bmap_btalloc_accounting()
3458 		ap->ip->i_delayed_blks -= args->len;  in xfs_bmap_btalloc_accounting()
3459 		xfs_mod_delalloc(ap->ip->i_mount, -(int64_t)args->len);  in xfs_bmap_btalloc_accounting()
3461 	xfs_trans_mod_dquot_byino(ap->tp, ap->ip,  in xfs_bmap_btalloc_accounting()
3462 		ap->wasdel ? XFS_TRANS_DQ_DELBCOUNT : XFS_TRANS_DQ_BCOUNT,  in xfs_bmap_btalloc_accounting()
3463 		args->len);  in xfs_bmap_btalloc_accounting()
3473 	xfs_agnumber_t	fb_agno;	/* ag number of ap->firstblock */  in xfs_bmap_btalloc()
3480 	int		nullfb;		/* true if ap->firstblock isn't set */  in xfs_bmap_btalloc()
3486 	ASSERT(ap->length);  in xfs_bmap_btalloc()
3487 	orig_offset = ap->offset;  in xfs_bmap_btalloc()
3488 	orig_length = ap->length;  in xfs_bmap_btalloc()
3490 	mp = ap->ip->i_mount;  in xfs_bmap_btalloc()
3494 	if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC))  in xfs_bmap_btalloc()
3495 		stripe_align = mp->m_swidth;  in xfs_bmap_btalloc()
3496 	else if (mp->m_dalign)  in xfs_bmap_btalloc()
3497 		stripe_align = mp->m_dalign;  in xfs_bmap_btalloc()
3499 	if (ap->flags & XFS_BMAPI_COWFORK)  in xfs_bmap_btalloc()
3500 		align = xfs_get_cowextsz_hint(ap->ip);  in xfs_bmap_btalloc()
3501 	else if (ap->datatype & XFS_ALLOC_USERDATA)  in xfs_bmap_btalloc()
3502 		align = xfs_get_extsz_hint(ap->ip);  in xfs_bmap_btalloc()
3504 		error = xfs_bmap_extsize_align(mp, &ap->got, &ap->prev,  in xfs_bmap_btalloc()
3505 						align, 0, ap->eof, 0, ap->conv,  in xfs_bmap_btalloc()
3506 						&ap->offset, &ap->length);  in xfs_bmap_btalloc()
3508 		ASSERT(ap->length);  in xfs_bmap_btalloc()
3512 	nullfb = ap->tp->t_firstblock == NULLFSBLOCK;  in xfs_bmap_btalloc()
3514 							ap->tp->t_firstblock);  in xfs_bmap_btalloc()
3516 		if ((ap->datatype & XFS_ALLOC_USERDATA) &&  in xfs_bmap_btalloc()
3517 		    xfs_inode_is_filestream(ap->ip)) {  in xfs_bmap_btalloc()
3518 			ag = xfs_filestream_lookup_ag(ap->ip);  in xfs_bmap_btalloc()
3520 			ap->blkno = XFS_AGB_TO_FSB(mp, ag, 0);  in xfs_bmap_btalloc()
3522 			ap->blkno = XFS_INO_TO_FSB(mp, ap->ip->i_ino);  in xfs_bmap_btalloc()
3525 		ap->blkno = ap->tp->t_firstblock;  in xfs_bmap_btalloc()
3530 	 * If allowed, use ap->blkno; otherwise must use firstblock since  in xfs_bmap_btalloc()
3533 	if (nullfb || XFS_FSB_TO_AGNO(mp, ap->blkno) == fb_agno)  in xfs_bmap_btalloc()
3536 		ap->blkno = ap->tp->t_firstblock;  in xfs_bmap_btalloc()
3542 	args.tp = ap->tp;  in xfs_bmap_btalloc()
3544 	args.fsbno = ap->blkno;  in xfs_bmap_btalloc()
3548 	args.maxlen = min(ap->length, mp->m_ag_max_usable);  in xfs_bmap_btalloc()
3556 		if ((ap->datatype & XFS_ALLOC_USERDATA) &&  in xfs_bmap_btalloc()
3557 		    xfs_inode_is_filestream(ap->ip))  in xfs_bmap_btalloc()
3563 	} else if (ap->tp->t_flags & XFS_TRANS_LOWMODE) {  in xfs_bmap_btalloc()
3564 		if (xfs_inode_is_filestream(ap->ip))  in xfs_bmap_btalloc()
3568 		args.total = args.minlen = ap->minlen;  in xfs_bmap_btalloc()
3571 		args.total = ap->total;  in xfs_bmap_btalloc()
3572 		args.minlen = ap->minlen;  in xfs_bmap_btalloc()
3577 		div_u64_rem(ap->offset, args.prod, &args.mod);  in xfs_bmap_btalloc()
3579 			args.mod = args.prod - args.mod;  in xfs_bmap_btalloc()
3580 	} else if (mp->m_sb.sb_blocksize >= PAGE_SIZE) {  in xfs_bmap_btalloc()
3584 		args.prod = PAGE_SIZE >> mp->m_sb.sb_blocklog;  in xfs_bmap_btalloc()
3585 		div_u64_rem(ap->offset, args.prod, &args.mod);  in xfs_bmap_btalloc()
3587 			args.mod = args.prod - args.mod;  in xfs_bmap_btalloc()
3592 	 * try to allocate data blocks on stripe unit boundary. NOTE: ap->aeof  in xfs_bmap_btalloc()
3596 	if (!(ap->tp->t_flags & XFS_TRANS_LOWMODE) && ap->aeof) {  in xfs_bmap_btalloc()
3597 		if (!ap->offset) {  in xfs_bmap_btalloc()
3607 				args.minlen = blen - args.alignment;  in xfs_bmap_btalloc()
3626 				nextminlen = blen - stripe_align;  in xfs_bmap_btalloc()
3631 					nextminlen + stripe_align -  in xfs_bmap_btalloc()
3632 					args.minlen - 1;  in xfs_bmap_btalloc()
3640 	args.minleft = ap->minleft;  in xfs_bmap_btalloc()
3641 	args.wasdel = ap->wasdel;  in xfs_bmap_btalloc()
3643 	args.datatype = ap->datatype;  in xfs_bmap_btalloc()
3655 		args.fsbno = ap->blkno;  in xfs_bmap_btalloc()
3669 		args.fsbno = ap->blkno;  in xfs_bmap_btalloc()
3675 	    args.minlen > ap->minlen) {  in xfs_bmap_btalloc()
3676 		args.minlen = ap->minlen;  in xfs_bmap_btalloc()
3678 		args.fsbno = ap->blkno;  in xfs_bmap_btalloc()
3685 		args.total = ap->minlen;  in xfs_bmap_btalloc()
3688 		ap->tp->t_flags |= XFS_TRANS_LOWMODE;  in xfs_bmap_btalloc()
3693 		 * the first block that was allocated.  in xfs_bmap_btalloc()
3695 		ASSERT(ap->tp->t_firstblock == NULLFSBLOCK ||  in xfs_bmap_btalloc()
3696 		       XFS_FSB_TO_AGNO(mp, ap->tp->t_firstblock) <=  in xfs_bmap_btalloc()
3699 		ap->blkno = args.fsbno;  in xfs_bmap_btalloc()
3700 		if (ap->tp->t_firstblock == NULLFSBLOCK)  in xfs_bmap_btalloc()
3701 			ap->tp->t_firstblock = args.fsbno;  in xfs_bmap_btalloc()
3703 		ap->length = args.len;  in xfs_bmap_btalloc()
3716 		if (ap->length <= orig_length)  in xfs_bmap_btalloc()
3717 			ap->offset = orig_offset;  in xfs_bmap_btalloc()
3718 		else if (ap->offset + ap->length < orig_offset + orig_length)  in xfs_bmap_btalloc()
3719 			ap->offset = orig_offset + orig_length - ap->length;  in xfs_bmap_btalloc()
3722 		ap->blkno = NULLFSBLOCK;  in xfs_bmap_btalloc()
3723 		ap->length = 0;  in xfs_bmap_btalloc()
3728 /* Trim extent to fit a logical block range. */
3738 	if (irec->br_startoff + irec->br_blockcount <= bno ||  in xfs_trim_extent()
3739 	    irec->br_startoff >= end) {  in xfs_trim_extent()
3740 		irec->br_blockcount = 0;  in xfs_trim_extent()
3744 	if (irec->br_startoff < bno) {  in xfs_trim_extent()
3745 		distance = bno - irec->br_startoff;  in xfs_trim_extent()
3746 		if (isnullstartblock(irec->br_startblock))  in xfs_trim_extent()
3747 			irec->br_startblock = DELAYSTARTBLOCK;  in xfs_trim_extent()
3748 		if (irec->br_startblock != DELAYSTARTBLOCK &&  in xfs_trim_extent()
3749 		    irec->br_startblock != HOLESTARTBLOCK)  in xfs_trim_extent()
3750 			irec->br_startblock += distance;  in xfs_trim_extent()
3751 		irec->br_startoff += distance;  in xfs_trim_extent()
3752 		irec->br_blockcount -= distance;  in xfs_trim_extent()
3755 	if (end < irec->br_startoff + irec->br_blockcount) {  in xfs_trim_extent()
3756 		distance = irec->br_startoff + irec->br_blockcount - end;  in xfs_trim_extent()
3757 		irec->br_blockcount -= distance;  in xfs_trim_extent()
3776 	    got->br_startoff + got->br_blockcount <= obno) {  in xfs_bmapi_trim_map()
3778 		if (isnullstartblock(got->br_startblock))  in xfs_bmapi_trim_map()
3779 			mval->br_startblock = DELAYSTARTBLOCK;  in xfs_bmapi_trim_map()
3787 	mval->br_startoff = *bno;  in xfs_bmapi_trim_map()
3788 	if (isnullstartblock(got->br_startblock))  in xfs_bmapi_trim_map()
3789 		mval->br_startblock = DELAYSTARTBLOCK;  in xfs_bmapi_trim_map()
3791 		mval->br_startblock = got->br_startblock +  in xfs_bmapi_trim_map()
3792 					(*bno - got->br_startoff);  in xfs_bmapi_trim_map()
3800 	mval->br_blockcount = XFS_FILBLKS_MIN(end - *bno,  in xfs_bmapi_trim_map()
3801 			got->br_blockcount - (*bno - got->br_startoff));  in xfs_bmapi_trim_map()
3802 	mval->br_state = got->br_state;  in xfs_bmapi_trim_map()
3803 	ASSERT(mval->br_blockcount <= len);  in xfs_bmapi_trim_map()
3823 	       ((mval->br_startoff + mval->br_blockcount) <= end));  in xfs_bmapi_update_map()
3824 	ASSERT((flags & XFS_BMAPI_ENTIRE) || (mval->br_blockcount <= *len) ||  in xfs_bmapi_update_map()
3825 	       (mval->br_startoff < obno));  in xfs_bmapi_update_map()
3827 	*bno = mval->br_startoff + mval->br_blockcount;  in xfs_bmapi_update_map()
3828 	*len = end - *bno;  in xfs_bmapi_update_map()
3829 	if (*n > 0 && mval->br_startoff == mval[-1].br_startoff) {  in xfs_bmapi_update_map()
3831 		ASSERT(mval->br_startblock == mval[-1].br_startblock);  in xfs_bmapi_update_map()
3832 		ASSERT(mval->br_blockcount > mval[-1].br_blockcount);  in xfs_bmapi_update_map()
3833 		ASSERT(mval->br_state == mval[-1].br_state);  in xfs_bmapi_update_map()
3834 		mval[-1].br_blockcount = mval->br_blockcount;  in xfs_bmapi_update_map()
3835 		mval[-1].br_state = mval->br_state;  in xfs_bmapi_update_map()
3836 	} else if (*n > 0 && mval->br_startblock != DELAYSTARTBLOCK &&  in xfs_bmapi_update_map()
3837 		   mval[-1].br_startblock != DELAYSTARTBLOCK &&  in xfs_bmapi_update_map()
3838 		   mval[-1].br_startblock != HOLESTARTBLOCK &&  in xfs_bmapi_update_map()
3839 		   mval->br_startblock == mval[-1].br_startblock +  in xfs_bmapi_update_map()
3840 					  mval[-1].br_blockcount &&  in xfs_bmapi_update_map()
3841 		   mval[-1].br_state == mval->br_state) {  in xfs_bmapi_update_map()
3842 		ASSERT(mval->br_startoff ==  in xfs_bmapi_update_map()
3843 		       mval[-1].br_startoff + mval[-1].br_blockcount);  in xfs_bmapi_update_map()
3844 		mval[-1].br_blockcount += mval->br_blockcount;  in xfs_bmapi_update_map()
3846 		   mval->br_startblock == DELAYSTARTBLOCK &&  in xfs_bmapi_update_map()
3847 		   mval[-1].br_startblock == DELAYSTARTBLOCK &&  in xfs_bmapi_update_map()
3848 		   mval->br_startoff ==  in xfs_bmapi_update_map()
3849 		   mval[-1].br_startoff + mval[-1].br_blockcount) {  in xfs_bmapi_update_map()
3850 		mval[-1].br_blockcount += mval->br_blockcount;  in xfs_bmapi_update_map()
3851 		mval[-1].br_state = mval->br_state;  in xfs_bmapi_update_map()
3853 		     ((mval->br_startoff + mval->br_blockcount) <=  in xfs_bmapi_update_map()
3866 	struct xfs_inode	*ip,  in xfs_bmapi_read()  argument
3873 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmapi_read()
3875 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmapi_read()
3886 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED|XFS_ILOCK_EXCL));  in xfs_bmapi_read()
3889 		return -EFSCORRUPTED;  in xfs_bmapi_read()
3893 		return -EFSCORRUPTED;  in xfs_bmapi_read()
3896 		return -EIO;  in xfs_bmapi_read()
3900 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmapi_read()
3901 		error = xfs_iread_extents(NULL, ip, whichfork);  in xfs_bmapi_read()
3906 	if (!xfs_iext_lookup_extent(ip, ifp, bno, &icur, &got))  in xfs_bmapi_read()
3917 			mval->br_startoff = bno;  in xfs_bmapi_read()
3918 			mval->br_startblock = HOLESTARTBLOCK;  in xfs_bmapi_read()
3919 			mval->br_blockcount =  in xfs_bmapi_read()
3920 				XFS_FILBLKS_MIN(len, got.br_startoff - bno);  in xfs_bmapi_read()
3921 			mval->br_state = XFS_EXT_NORM;  in xfs_bmapi_read()
3922 			bno += mval->br_blockcount;  in xfs_bmapi_read()
3923 			len -= mval->br_blockcount;  in xfs_bmapi_read()
3947  * global pool and the extent inserted into the inode in-core extent tree.
3960 	struct xfs_inode	*ip,  in xfs_bmapi_reserve_delalloc()  argument
3969 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmapi_reserve_delalloc()
3970 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmapi_reserve_delalloc()
3982 		alen = XFS_FILBLKS_MIN(alen, got->br_startoff - aoff);  in xfs_bmapi_reserve_delalloc()
3984 		prealloc = alen - len;  in xfs_bmapi_reserve_delalloc()
3989 		xfs_extlen_t		extsz = xfs_get_cowextsz_hint(ip);  in xfs_bmapi_reserve_delalloc()
4000 	 * Make a transaction-less quota reservation for delayed allocation  in xfs_bmapi_reserve_delalloc()
4004 	error = xfs_trans_reserve_quota_nblks(NULL, ip, (long)alen, 0,  in xfs_bmapi_reserve_delalloc()
4013 	indlen = (xfs_extlen_t)xfs_bmap_worst_indlen(ip, alen);  in xfs_bmapi_reserve_delalloc()
4016 	error = xfs_mod_fdblocks(mp, -((int64_t)alen), false);  in xfs_bmapi_reserve_delalloc()
4020 	error = xfs_mod_fdblocks(mp, -((int64_t)indlen), false);  in xfs_bmapi_reserve_delalloc()
4025 	ip->i_delayed_blks += alen;  in xfs_bmapi_reserve_delalloc()
4026 	xfs_mod_delalloc(ip->i_mount, alen + indlen);  in xfs_bmapi_reserve_delalloc()
4028 	got->br_startoff = aoff;  in xfs_bmapi_reserve_delalloc()
4029 	got->br_startblock = nullstartblock(indlen);  in xfs_bmapi_reserve_delalloc()
4030 	got->br_blockcount = alen;  in xfs_bmapi_reserve_delalloc()
4031 	got->br_state = XFS_EXT_NORM;  in xfs_bmapi_reserve_delalloc()
4033 	xfs_bmap_add_extent_hole_delay(ip, whichfork, icur, got);  in xfs_bmapi_reserve_delalloc()
4041 		xfs_inode_set_eofblocks_tag(ip);  in xfs_bmapi_reserve_delalloc()
4043 		xfs_inode_set_cowblocks_tag(ip);  in xfs_bmapi_reserve_delalloc()
4051 		xfs_trans_unreserve_quota_nblks(NULL, ip, (long)alen, 0,  in xfs_bmapi_reserve_delalloc()
4060 	struct xfs_mount	*mp = bma->ip->i_mount;  in xfs_bmap_alloc_userdata()
4061 	int			whichfork = xfs_bmapi_whichfork(bma->flags);  in xfs_bmap_alloc_userdata()
4070 	bma->datatype = XFS_ALLOC_NOBUSY;  in xfs_bmap_alloc_userdata()
4072 		bma->datatype |= XFS_ALLOC_USERDATA;  in xfs_bmap_alloc_userdata()
4073 		if (bma->offset == 0)  in xfs_bmap_alloc_userdata()
4074 			bma->datatype |= XFS_ALLOC_INITIAL_USER_DATA;  in xfs_bmap_alloc_userdata()
4076 		if (mp->m_dalign && bma->length >= mp->m_dalign) {  in xfs_bmap_alloc_userdata()
4082 		if (XFS_IS_REALTIME_INODE(bma->ip))  in xfs_bmap_alloc_userdata()
4093 	struct xfs_mount	*mp = bma->ip->i_mount;  in xfs_bmapi_allocate()
4094 	int			whichfork = xfs_bmapi_whichfork(bma->flags);  in xfs_bmapi_allocate()
4095 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(bma->ip, whichfork);  in xfs_bmapi_allocate()
4099 	ASSERT(bma->length > 0);  in xfs_bmapi_allocate()
4105 	if (bma->wasdel) {  in xfs_bmapi_allocate()
4106 		bma->length = (xfs_extlen_t)bma->got.br_blockcount;  in xfs_bmapi_allocate()
4107 		bma->offset = bma->got.br_startoff;  in xfs_bmapi_allocate()
4108 		if (!xfs_iext_peek_prev_extent(ifp, &bma->icur, &bma->prev))  in xfs_bmapi_allocate()
4109 			bma->prev.br_startoff = NULLFILEOFF;  in xfs_bmapi_allocate()
4111 		bma->length = XFS_FILBLKS_MIN(bma->length, MAXEXTLEN);  in xfs_bmapi_allocate()
4112 		if (!bma->eof)  in xfs_bmapi_allocate()
4113 			bma->length = XFS_FILBLKS_MIN(bma->length,  in xfs_bmapi_allocate()
4114 					bma->got.br_startoff - bma->offset);  in xfs_bmapi_allocate()
4117 	if (bma->flags & XFS_BMAPI_CONTIG)  in xfs_bmapi_allocate()
4118 		bma->minlen = bma->length;  in xfs_bmapi_allocate()
4120 		bma->minlen = 1;  in xfs_bmapi_allocate()
4122 	if (bma->flags & XFS_BMAPI_METADATA)  in xfs_bmapi_allocate()
4126 	if (error || bma->blkno == NULLFSBLOCK)  in xfs_bmapi_allocate()
4129 	if (bma->flags & XFS_BMAPI_ZERO) {  in xfs_bmapi_allocate()
4130 		error = xfs_zero_extent(bma->ip, bma->blkno, bma->length);  in xfs_bmapi_allocate()
4135 	if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur)  in xfs_bmapi_allocate()
4136 		bma->cur = xfs_bmbt_init_cursor(mp, bma->tp, bma->ip, whichfork);  in xfs_bmapi_allocate()
4141 	bma->nallocs++;  in xfs_bmapi_allocate()
4143 	if (bma->cur)  in xfs_bmapi_allocate()
4144 		bma->cur->bc_ino.flags =  in xfs_bmapi_allocate()
4145 			bma->wasdel ? XFS_BTCUR_BMBT_WASDEL : 0;  in xfs_bmapi_allocate()
4147 	bma->got.br_startoff = bma->offset;  in xfs_bmapi_allocate()
4148 	bma->got.br_startblock = bma->blkno;  in xfs_bmapi_allocate()
4149 	bma->got.br_blockcount = bma->length;  in xfs_bmapi_allocate()
4150 	bma->got.br_state = XFS_EXT_NORM;  in xfs_bmapi_allocate()
4152 	if (bma->flags & XFS_BMAPI_PREALLOC)  in xfs_bmapi_allocate()
4153 		bma->got.br_state = XFS_EXT_UNWRITTEN;  in xfs_bmapi_allocate()
4155 	if (bma->wasdel)  in xfs_bmapi_allocate()
4158 		error = xfs_bmap_add_extent_hole_real(bma->tp, bma->ip,  in xfs_bmapi_allocate()
4159 				whichfork, &bma->icur, &bma->cur, &bma->got,  in xfs_bmapi_allocate()
4160 				&bma->logflags, bma->flags);  in xfs_bmapi_allocate()
4162 	bma->logflags |= tmp_logflags;  in xfs_bmapi_allocate()
4171 	xfs_iext_get_extent(ifp, &bma->icur, &bma->got);  in xfs_bmapi_allocate()
4173 	ASSERT(bma->got.br_startoff <= bma->offset);  in xfs_bmapi_allocate()
4174 	ASSERT(bma->got.br_startoff + bma->got.br_blockcount >=  in xfs_bmapi_allocate()
4175 	       bma->offset + bma->length);  in xfs_bmapi_allocate()
4176 	ASSERT(bma->got.br_state == XFS_EXT_NORM ||  in xfs_bmapi_allocate()
4177 	       bma->got.br_state == XFS_EXT_UNWRITTEN);  in xfs_bmapi_allocate()
4189 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(bma->ip, whichfork);  in xfs_bmapi_convert_unwritten()
4193 	/* check if we need to do unwritten->real conversion */  in xfs_bmapi_convert_unwritten()
4194 	if (mval->br_state == XFS_EXT_UNWRITTEN &&  in xfs_bmapi_convert_unwritten()
4198 	/* check if we need to do real->unwritten conversion */  in xfs_bmapi_convert_unwritten()
4199 	if (mval->br_state == XFS_EXT_NORM &&  in xfs_bmapi_convert_unwritten()
4207 	ASSERT(mval->br_blockcount <= len);  in xfs_bmapi_convert_unwritten()
4208 	if ((ifp->if_flags & XFS_IFBROOT) && !bma->cur) {  in xfs_bmapi_convert_unwritten()
4209 		bma->cur = xfs_bmbt_init_cursor(bma->ip->i_mount, bma->tp,  in xfs_bmapi_convert_unwritten()
4210 					bma->ip, whichfork);  in xfs_bmapi_convert_unwritten()
4212 	mval->br_state = (mval->br_state == XFS_EXT_UNWRITTEN)  in xfs_bmapi_convert_unwritten()
4220 		error = xfs_zero_extent(bma->ip, mval->br_startblock,  in xfs_bmapi_convert_unwritten()
4221 					mval->br_blockcount);  in xfs_bmapi_convert_unwritten()
4226 	error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, whichfork,  in xfs_bmapi_convert_unwritten()
4227 			&bma->icur, &bma->cur, mval, &tmp_logflags);  in xfs_bmapi_convert_unwritten()
4237 	 * any on-disk updates to make, so we don't need to log anything.  in xfs_bmapi_convert_unwritten()
4240 		bma->logflags |= tmp_logflags | XFS_ILOG_CORE;  in xfs_bmapi_convert_unwritten()
4249 	xfs_iext_get_extent(ifp, &bma->icur, &bma->got);  in xfs_bmapi_convert_unwritten()
4255 	if (mval->br_blockcount < len)  in xfs_bmapi_convert_unwritten()
4256 		return -EAGAIN;  in xfs_bmapi_convert_unwritten()
4263 	struct xfs_inode	*ip,  in xfs_bmapi_minleft()  argument
4266 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, fork);  in xfs_bmapi_minleft()
4268 	if (tp && tp->t_firstblock != NULLFSBLOCK)  in xfs_bmapi_minleft()
4270 	if (ifp->if_format != XFS_DINODE_FMT_BTREE)  in xfs_bmapi_minleft()
4272 	return be16_to_cpu(ifp->if_broot->bb_level) + 1;  in xfs_bmapi_minleft()
4287 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(bma->ip, whichfork);  in xfs_bmapi_finish()
4289 	if ((bma->logflags & xfs_ilog_fext(whichfork)) &&  in xfs_bmapi_finish()
4290 	    ifp->if_format != XFS_DINODE_FMT_EXTENTS)  in xfs_bmapi_finish()
4291 		bma->logflags &= ~xfs_ilog_fext(whichfork);  in xfs_bmapi_finish()
4292 	else if ((bma->logflags & xfs_ilog_fbroot(whichfork)) &&  in xfs_bmapi_finish()
4293 		 ifp->if_format != XFS_DINODE_FMT_BTREE)  in xfs_bmapi_finish()
4294 		bma->logflags &= ~xfs_ilog_fbroot(whichfork);  in xfs_bmapi_finish()
4296 	if (bma->logflags)  in xfs_bmapi_finish()
4297 		xfs_trans_log_inode(bma->tp, bma->ip, bma->logflags);  in xfs_bmapi_finish()
4298 	if (bma->cur)  in xfs_bmapi_finish()
4299 		xfs_btree_del_cursor(bma->cur, error);  in xfs_bmapi_finish()
4311 	struct xfs_inode	*ip,		/* incore inode */  in xfs_bmapi_write()  argument
4321 		.ip		= ip,  in xfs_bmapi_write()
4324 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmapi_write()
4326 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmapi_write()
4331 	xfs_fileoff_t		obno;		/* old block number (offset) */  in xfs_bmapi_write()
4334 	xfs_fileoff_t		orig_bno;	/* original block number value */  in xfs_bmapi_write()
4351 	ASSERT(ifp->if_format != XFS_DINODE_FMT_LOCAL);  in xfs_bmapi_write()
4352 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));  in xfs_bmapi_write()
4359 	 * we can allocate unwritten extents or pre-zero allocated blocks,  in xfs_bmapi_write()
4369 		return -EFSCORRUPTED;  in xfs_bmapi_write()
4373 		return -EIO;  in xfs_bmapi_write()
4377 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmapi_write()
4378 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmapi_write()
4383 	if (!xfs_iext_lookup_extent(ip, ifp, bno, &bma.icur, &bma.got))  in xfs_bmapi_write()
4387 	bma.minleft = xfs_bmapi_minleft(tp, ip, whichfork);  in xfs_bmapi_write()
4426 			 * check for 32-bit overflows and handle them here.  in xfs_bmapi_write()
4456 		if (error == -EAGAIN)  in xfs_bmapi_write()
4479 	error = xfs_bmap_btree_to_extents(tp, ip, bma.cur, &bma.logflags,  in xfs_bmapi_write()
4484 	ASSERT(ifp->if_format != XFS_DINODE_FMT_BTREE ||  in xfs_bmapi_write()
4485 	       ifp->if_nextents > XFS_IFORK_MAXEXT(ip, whichfork));  in xfs_bmapi_write()
4503 	struct xfs_inode	*ip,  in xfs_bmapi_convert_delalloc()  argument
4509 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmapi_convert_delalloc()
4510 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmapi_convert_delalloc()
4524 	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, 0, 0,  in xfs_bmapi_convert_delalloc()
4529 	xfs_ilock(ip, XFS_ILOCK_EXCL);  in xfs_bmapi_convert_delalloc()
4530 	xfs_trans_ijoin(tp, ip, 0);  in xfs_bmapi_convert_delalloc()
4532 	if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &bma.icur, &bma.got) ||  in xfs_bmapi_convert_delalloc()
4540 		error = -EAGAIN;  in xfs_bmapi_convert_delalloc()
4549 		xfs_bmbt_to_iomap(ip, iomap, &bma.got, flags);  in xfs_bmapi_convert_delalloc()
4550 		*seq = READ_ONCE(ifp->if_seq);  in xfs_bmapi_convert_delalloc()
4555 	bma.ip = ip;  in xfs_bmapi_convert_delalloc()
4559 	bma.minleft = xfs_bmapi_minleft(tp, ip, whichfork);  in xfs_bmapi_convert_delalloc()
4585 	error = -ENOSPC;  in xfs_bmapi_convert_delalloc()
4588 	error = -EFSCORRUPTED;  in xfs_bmapi_convert_delalloc()
4589 	if (WARN_ON_ONCE(!xfs_valid_startblock(ip, bma.got.br_startblock)))  in xfs_bmapi_convert_delalloc()
4596 	xfs_bmbt_to_iomap(ip, iomap, &bma.got, flags);  in xfs_bmapi_convert_delalloc()
4597 	*seq = READ_ONCE(ifp->if_seq);  in xfs_bmapi_convert_delalloc()
4602 	error = xfs_bmap_btree_to_extents(tp, ip, bma.cur, &bma.logflags,  in xfs_bmapi_convert_delalloc()
4609 	xfs_iunlock(ip, XFS_ILOCK_EXCL);  in xfs_bmapi_convert_delalloc()
4616 	xfs_iunlock(ip, XFS_ILOCK_EXCL);  in xfs_bmapi_convert_delalloc()
4623 	struct xfs_inode	*ip,  in xfs_bmapi_remap()  argument
4629 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmapi_remap()
4637 	ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmapi_remap()
4640 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));  in xfs_bmapi_remap()
4648 		return -EFSCORRUPTED;  in xfs_bmapi_remap()
4652 		return -EIO;  in xfs_bmapi_remap()
4654 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmapi_remap()
4655 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmapi_remap()
4660 	if (xfs_iext_lookup_extent(ip, ifp, bno, &icur, &got)) {  in xfs_bmapi_remap()
4663 		ASSERT(got.br_startoff - bno >= len);  in xfs_bmapi_remap()
4666 	ip->i_d.di_nblocks += len;  in xfs_bmapi_remap()
4667 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);  in xfs_bmapi_remap()
4669 	if (ifp->if_flags & XFS_IFBROOT) {  in xfs_bmapi_remap()
4670 		cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);  in xfs_bmapi_remap()
4671 		cur->bc_ino.flags = 0;  in xfs_bmapi_remap()
4682 	error = xfs_bmap_add_extent_hole_real(tp, ip, whichfork, &icur,  in xfs_bmapi_remap()
4687 	error = xfs_bmap_btree_to_extents(tp, ip, cur, &logflags, whichfork);  in xfs_bmapi_remap()
4690 	if (ip->i_df.if_format != XFS_DINODE_FMT_EXTENTS)  in xfs_bmapi_remap()
4692 	else if (ip->i_df.if_format != XFS_DINODE_FMT_BTREE)  in xfs_bmapi_remap()
4696 		xfs_trans_log_inode(tp, ip, logflags);  in xfs_bmapi_remap()
4732 		stolen = XFS_FILBLKS_MIN(nres - ores, avail);  in xfs_bmap_split_indlen()
4758 	 * is zero, we want to make sure that one gets a block first. The loop  in xfs_bmap_split_indlen()
4759 	 * below starts with len1, so hand len2 a block right off the bat if it  in xfs_bmap_split_indlen()
4762 	ores -= (len1 + len2);  in xfs_bmap_split_indlen()
4763 	ASSERT((*indlen1 - len1) + (*indlen2 - len2) >= ores);  in xfs_bmap_split_indlen()
4766 		ores--;  in xfs_bmap_split_indlen()
4771 			ores--;  in xfs_bmap_split_indlen()
4777 			ores--;  in xfs_bmap_split_indlen()
4789 	struct xfs_inode	*ip,  in xfs_bmap_del_extent_delay()  argument
4795 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_del_extent_delay()
4796 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_del_extent_delay()
4807 	isrt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip);  in xfs_bmap_del_extent_delay()
4808 	del_endoff = del->br_startoff + del->br_blockcount;  in xfs_bmap_del_extent_delay()
4809 	got_endoff = got->br_startoff + got->br_blockcount;  in xfs_bmap_del_extent_delay()
4810 	da_old = startblockval(got->br_startblock);  in xfs_bmap_del_extent_delay()
4813 	ASSERT(del->br_blockcount > 0);  in xfs_bmap_del_extent_delay()
4814 	ASSERT(got->br_startoff <= del->br_startoff);  in xfs_bmap_del_extent_delay()
4818 		uint64_t rtexts = XFS_FSB_TO_B(mp, del->br_blockcount);  in xfs_bmap_del_extent_delay()
4820 		do_div(rtexts, mp->m_sb.sb_rextsize);  in xfs_bmap_del_extent_delay()
4827 	 * indirect block accounting.  in xfs_bmap_del_extent_delay()
4829 	error = xfs_trans_reserve_quota_nblks(NULL, ip,  in xfs_bmap_del_extent_delay()
4830 			-((long)del->br_blockcount), 0,  in xfs_bmap_del_extent_delay()
4834 	ip->i_delayed_blks -= del->br_blockcount;  in xfs_bmap_del_extent_delay()
4836 	if (got->br_startoff == del->br_startoff)  in xfs_bmap_del_extent_delay()
4846 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_del_extent_delay()
4853 		got->br_startoff = del_endoff;  in xfs_bmap_del_extent_delay()
4854 		got->br_blockcount -= del->br_blockcount;  in xfs_bmap_del_extent_delay()
4855 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip,  in xfs_bmap_del_extent_delay()
4856 				got->br_blockcount), da_old);  in xfs_bmap_del_extent_delay()
4857 		got->br_startblock = nullstartblock((int)da_new);  in xfs_bmap_del_extent_delay()
4858 		xfs_iext_update_extent(ip, state, icur, got);  in xfs_bmap_del_extent_delay()
4864 		got->br_blockcount = got->br_blockcount - del->br_blockcount;  in xfs_bmap_del_extent_delay()
4865 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip,  in xfs_bmap_del_extent_delay()
4866 				got->br_blockcount), da_old);  in xfs_bmap_del_extent_delay()
4867 		got->br_startblock = nullstartblock((int)da_new);  in xfs_bmap_del_extent_delay()
4868 		xfs_iext_update_extent(ip, state, icur, got);  in xfs_bmap_del_extent_delay()
4880 		got->br_blockcount = del->br_startoff - got->br_startoff;  in xfs_bmap_del_extent_delay()
4881 		got_indlen = xfs_bmap_worst_indlen(ip, got->br_blockcount);  in xfs_bmap_del_extent_delay()
4883 		new.br_blockcount = got_endoff - del_endoff;  in xfs_bmap_del_extent_delay()
4884 		new_indlen = xfs_bmap_worst_indlen(ip, new.br_blockcount);  in xfs_bmap_del_extent_delay()
4888 						       del->br_blockcount);  in xfs_bmap_del_extent_delay()
4890 		got->br_startblock = nullstartblock((int)got_indlen);  in xfs_bmap_del_extent_delay()
4893 		new.br_state = got->br_state;  in xfs_bmap_del_extent_delay()
4896 		xfs_iext_update_extent(ip, state, icur, got);  in xfs_bmap_del_extent_delay()
4898 		xfs_iext_insert(ip, icur, &new, state);  in xfs_bmap_del_extent_delay()
4900 		da_new = got_indlen + new_indlen - stolen;  in xfs_bmap_del_extent_delay()
4901 		del->br_blockcount -= stolen;  in xfs_bmap_del_extent_delay()
4906 	da_diff = da_old - da_new;  in xfs_bmap_del_extent_delay()
4908 		da_diff += del->br_blockcount;  in xfs_bmap_del_extent_delay()
4911 		xfs_mod_delalloc(mp, -da_diff);  in xfs_bmap_del_extent_delay()
4918 	struct xfs_inode	*ip,  in xfs_bmap_del_extent_cow()  argument
4923 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_del_extent_cow()
4924 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);  in xfs_bmap_del_extent_cow()
4931 	del_endoff = del->br_startoff + del->br_blockcount;  in xfs_bmap_del_extent_cow()
4932 	got_endoff = got->br_startoff + got->br_blockcount;  in xfs_bmap_del_extent_cow()
4934 	ASSERT(del->br_blockcount > 0);  in xfs_bmap_del_extent_cow()
4935 	ASSERT(got->br_startoff <= del->br_startoff);  in xfs_bmap_del_extent_cow()
4937 	ASSERT(!isnullstartblock(got->br_startblock));  in xfs_bmap_del_extent_cow()
4939 	if (got->br_startoff == del->br_startoff)  in xfs_bmap_del_extent_cow()
4949 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_del_extent_cow()
4956 		got->br_startoff = del_endoff;  in xfs_bmap_del_extent_cow()
4957 		got->br_blockcount -= del->br_blockcount;  in xfs_bmap_del_extent_cow()
4958 		got->br_startblock = del->br_startblock + del->br_blockcount;  in xfs_bmap_del_extent_cow()
4959 		xfs_iext_update_extent(ip, state, icur, got);  in xfs_bmap_del_extent_cow()
4965 		got->br_blockcount -= del->br_blockcount;  in xfs_bmap_del_extent_cow()
4966 		xfs_iext_update_extent(ip, state, icur, got);  in xfs_bmap_del_extent_cow()
4972 		got->br_blockcount = del->br_startoff - got->br_startoff;  in xfs_bmap_del_extent_cow()
4975 		new.br_blockcount = got_endoff - del_endoff;  in xfs_bmap_del_extent_cow()
4976 		new.br_state = got->br_state;  in xfs_bmap_del_extent_cow()
4977 		new.br_startblock = del->br_startblock + del->br_blockcount;  in xfs_bmap_del_extent_cow()
4979 		xfs_iext_update_extent(ip, state, icur, got);  in xfs_bmap_del_extent_cow()
4981 		xfs_iext_insert(ip, icur, &new, state);  in xfs_bmap_del_extent_cow()
4984 	ip->i_delayed_blks -= del->br_blockcount;  in xfs_bmap_del_extent_cow()
4993 	xfs_inode_t		*ip,	/* incore inode pointer */  in xfs_bmap_del_extent_real()  argument
5002 	xfs_fsblock_t		del_endblock=0;	/* first block past del */  in xfs_bmap_del_extent_real()
5012 	xfs_filblks_t		nblks;	/* quota/sb block count */  in xfs_bmap_del_extent_real()
5019 	mp = ip->i_mount;  in xfs_bmap_del_extent_real()
5022 	ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_del_extent_real()
5023 	ASSERT(del->br_blockcount > 0);  in xfs_bmap_del_extent_real()
5025 	ASSERT(got.br_startoff <= del->br_startoff);  in xfs_bmap_del_extent_real()
5026 	del_endoff = del->br_startoff + del->br_blockcount;  in xfs_bmap_del_extent_real()
5034 	 * If it's the case where the directory code is running with no block  in xfs_bmap_del_extent_real()
5035 	 * reservation, and the deleted block is in the middle of its extent,  in xfs_bmap_del_extent_real()
5041 	if (tp->t_blk_res == 0 &&  in xfs_bmap_del_extent_real()
5042 	    ifp->if_format == XFS_DINODE_FMT_EXTENTS &&  in xfs_bmap_del_extent_real()
5043 	    ifp->if_nextents >= XFS_IFORK_MAXEXT(ip, whichfork) &&  in xfs_bmap_del_extent_real()
5044 	    del->br_startoff > got.br_startoff && del_endoff < got_endoff)  in xfs_bmap_del_extent_real()
5045 		return -ENOSPC;  in xfs_bmap_del_extent_real()
5048 	if (whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip)) {  in xfs_bmap_del_extent_real()
5052 		len = div_u64_rem(del->br_blockcount, mp->m_sb.sb_rextsize,  in xfs_bmap_del_extent_real()
5059 			bno = div_u64_rem(del->br_startblock,  in xfs_bmap_del_extent_real()
5060 					mp->m_sb.sb_rextsize, &mod);  in xfs_bmap_del_extent_real()
5069 		nblks = len * mp->m_sb.sb_rextsize;  in xfs_bmap_del_extent_real()
5073 		nblks = del->br_blockcount;  in xfs_bmap_del_extent_real()
5077 	del_endblock = del->br_startblock + del->br_blockcount;  in xfs_bmap_del_extent_real()
5083 			error = -EFSCORRUPTED;  in xfs_bmap_del_extent_real()
5088 	if (got.br_startoff == del->br_startoff)  in xfs_bmap_del_extent_real()
5098 		xfs_iext_remove(ip, icur, state);  in xfs_bmap_del_extent_real()
5100 		ifp->if_nextents--;  in xfs_bmap_del_extent_real()
5110 			error = -EFSCORRUPTED;  in xfs_bmap_del_extent_real()
5120 		got.br_blockcount -= del->br_blockcount;  in xfs_bmap_del_extent_real()
5121 		xfs_iext_update_extent(ip, state, icur, &got);  in xfs_bmap_del_extent_real()
5134 		got.br_blockcount -= del->br_blockcount;  in xfs_bmap_del_extent_real()
5135 		xfs_iext_update_extent(ip, state, icur, &got);  in xfs_bmap_del_extent_real()
5150 		got.br_blockcount = del->br_startoff - got.br_startoff;  in xfs_bmap_del_extent_real()
5151 		xfs_iext_update_extent(ip, state, icur, &got);  in xfs_bmap_del_extent_real()
5154 		new.br_blockcount = got_endoff - del_endoff;  in xfs_bmap_del_extent_real()
5166 			cur->bc_rec.b = new;  in xfs_bmap_del_extent_real()
5168 			if (error && error != -ENOSPC)  in xfs_bmap_del_extent_real()
5171 			 * If get no-space back from btree insert, it tried a  in xfs_bmap_del_extent_real()
5172 			 * split, and we have a zero block reservation.  Fix up  in xfs_bmap_del_extent_real()
5175 			if (error == -ENOSPC) {  in xfs_bmap_del_extent_real()
5184 					error = -EFSCORRUPTED;  in xfs_bmap_del_extent_real()
5198 				xfs_iext_update_extent(ip, state, icur, &old);  in xfs_bmap_del_extent_real()
5200 				error = -ENOSPC;  in xfs_bmap_del_extent_real()
5204 				error = -EFSCORRUPTED;  in xfs_bmap_del_extent_real()
5210 		ifp->if_nextents++;  in xfs_bmap_del_extent_real()
5212 		xfs_iext_insert(ip, icur, &new, state);  in xfs_bmap_del_extent_real()
5217 	xfs_rmap_unmap_extent(tp, ip, whichfork, del);  in xfs_bmap_del_extent_real()
5223 		if (xfs_is_reflink_inode(ip) && whichfork == XFS_DATA_FORK) {  in xfs_bmap_del_extent_real()
5226 			__xfs_bmap_add_free(tp, del->br_startblock,  in xfs_bmap_del_extent_real()
5227 					del->br_blockcount, NULL,  in xfs_bmap_del_extent_real()
5229 					del->br_state == XFS_EXT_UNWRITTEN);  in xfs_bmap_del_extent_real()
5237 		ip->i_d.di_nblocks -= nblks;  in xfs_bmap_del_extent_real()
5242 		xfs_trans_mod_dquot_byino(tp, ip, qfield, (long)-nblks);  in xfs_bmap_del_extent_real()
5252  * that value.  If not all extents in the block range can be removed then
5258 	struct xfs_inode	*ip,		/* incore inode */  in __xfs_bunmapi()  argument
5273 	struct xfs_mount	*mp = ip->i_mount;  in __xfs_bunmapi()
5285 	trace_xfs_bunmap(ip, start, len, flags, _RET_IP_);  in __xfs_bunmapi()
5289 	ifp = XFS_IFORK_PTR(ip, whichfork);  in __xfs_bunmapi()
5291 		return -EFSCORRUPTED;  in __xfs_bunmapi()
5293 		return -EIO;  in __xfs_bunmapi()
5295 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));  in __xfs_bunmapi()
5304 	if (tp && xfs_is_reflink_inode(ip) && whichfork == XFS_DATA_FORK)  in __xfs_bunmapi()
5305 		max_len = min(len, xfs_refcount_max_unmap(tp->t_log_res));  in __xfs_bunmapi()
5309 	if (!(ifp->if_flags & XFS_IFEXTENTS) &&  in __xfs_bunmapi()
5310 	    (error = xfs_iread_extents(tp, ip, whichfork)))  in __xfs_bunmapi()
5317 	isrt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip);  in __xfs_bunmapi()
5320 	if (!xfs_iext_lookup_extent_before(ip, ifp, &end, &icur, &got)) {  in __xfs_bunmapi()
5324 	end--;  in __xfs_bunmapi()
5327 	if (ifp->if_flags & XFS_IFBROOT) {  in __xfs_bunmapi()
5328 		ASSERT(ifp->if_format == XFS_DINODE_FMT_BTREE);  in __xfs_bunmapi()
5329 		cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);  in __xfs_bunmapi()
5330 		cur->bc_ino.flags = 0;  in __xfs_bunmapi()
5338 		xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL|XFS_ILOCK_RTBITMAP);  in __xfs_bunmapi()
5339 		xfs_trans_ijoin(tp, mp->m_rbmip, XFS_ILOCK_EXCL);  in __xfs_bunmapi()
5340 		xfs_ilock(mp->m_rsumip, XFS_ILOCK_EXCL|XFS_ILOCK_RTSUM);  in __xfs_bunmapi()
5341 		xfs_trans_ijoin(tp, mp->m_rsumip, XFS_ILOCK_EXCL);  in __xfs_bunmapi()
5345 	while (end != (xfs_fileoff_t)-1 && end >= start &&  in __xfs_bunmapi()
5357 		 * Is the last block of this extent before the range  in __xfs_bunmapi()
5361 			got.br_startoff + got.br_blockcount - 1);  in __xfs_bunmapi()
5373 		 * in a single transaction, as that could cause AB-BA deadlocks.  in __xfs_bunmapi()
5383 			del.br_blockcount -= start - got.br_startoff;  in __xfs_bunmapi()
5385 				del.br_startblock += start - got.br_startoff;  in __xfs_bunmapi()
5388 			del.br_blockcount = end + 1 - del.br_startoff;  in __xfs_bunmapi()
5392 			del.br_startoff += del.br_blockcount - max_len;  in __xfs_bunmapi()
5394 				del.br_startblock += del.br_blockcount - max_len;  in __xfs_bunmapi()
5402 		div_u64_rem(sum, mp->m_sb.sb_rextsize, &mod);  in __xfs_bunmapi()
5417 				end -= mod > del.br_blockcount ?  in __xfs_bunmapi()
5431 			ASSERT(tp->t_blk_res > 0);  in __xfs_bunmapi()
5437 				del.br_startoff += del.br_blockcount - mod;  in __xfs_bunmapi()
5438 				del.br_startblock += del.br_blockcount - mod;  in __xfs_bunmapi()
5442 			error = xfs_bmap_add_extent_unwritten_real(tp, ip,  in __xfs_bunmapi()
5449 		div_u64_rem(del.br_startblock, mp->m_sb.sb_rextsize, &mod);  in __xfs_bunmapi()
5451 			xfs_extlen_t off = mp->m_sb.sb_rextsize - mod;  in __xfs_bunmapi()
5459 				del.br_blockcount -= off;  in __xfs_bunmapi()
5464 				    tp->t_blk_res == 0)) {  in __xfs_bunmapi()
5470 				end -= del.br_blockcount;  in __xfs_bunmapi()
5494 						     del.br_startoff - mod,  in __xfs_bunmapi()
5496 				mod = unwrite_start - prev.br_startoff;  in __xfs_bunmapi()
5499 				prev.br_blockcount -= mod;  in __xfs_bunmapi()
5502 						ip, whichfork, &icur, &cur,  in __xfs_bunmapi()
5511 						ip, whichfork, &icur, &cur,  in __xfs_bunmapi()
5521 			error = xfs_bmap_del_extent_delay(ip, whichfork, &icur,  in __xfs_bunmapi()
5524 			error = xfs_bmap_del_extent_real(ip, tp, &icur, cur,  in __xfs_bunmapi()
5533 		max_len -= del.br_blockcount;  in __xfs_bunmapi()
5534 		end = del.br_startoff - 1;  in __xfs_bunmapi()
5539 		if (end != (xfs_fileoff_t)-1 && end >= start) {  in __xfs_bunmapi()
5549 	if (done || end == (xfs_fileoff_t)-1 || end < start)  in __xfs_bunmapi()
5552 		*rlen = end - start + 1;  in __xfs_bunmapi()
5557 	if (xfs_bmap_needs_btree(ip, whichfork)) {  in __xfs_bunmapi()
5559 		error = xfs_bmap_extents_to_btree(tp, ip, &cur, 0,  in __xfs_bunmapi()
5563 		error = xfs_bmap_btree_to_extents(tp, ip, cur, &logflags,  in __xfs_bunmapi()
5573 	    ifp->if_format != XFS_DINODE_FMT_EXTENTS)  in __xfs_bunmapi()
5576 		 ifp->if_format != XFS_DINODE_FMT_BTREE)  in __xfs_bunmapi()
5583 		xfs_trans_log_inode(tp, ip, logflags);  in __xfs_bunmapi()
5586 			cur->bc_ino.allocated = 0;  in __xfs_bunmapi()
5596 	struct xfs_inode	*ip,  in xfs_bunmapi()  argument
5605 	error = __xfs_bunmapi(tp, ip, bno, &len, flags, nexts);  in xfs_bunmapi()
5622 	startoff = got->br_startoff - shift;  in xfs_bmse_can_merge()
5625 	 * The extent, once shifted, must be adjacent in-file and on-disk with  in xfs_bmse_can_merge()
5628 	if ((left->br_startoff + left->br_blockcount != startoff) ||  in xfs_bmse_can_merge()
5629 	    (left->br_startblock + left->br_blockcount != got->br_startblock) ||  in xfs_bmse_can_merge()
5630 	    (left->br_state != got->br_state) ||  in xfs_bmse_can_merge()
5631 	    (left->br_blockcount + got->br_blockcount > MAXEXTLEN))  in xfs_bmse_can_merge()
5643  * This function assumes the caller has verified a shift-by-merge is possible
5649 	struct xfs_inode		*ip,  in xfs_bmse_merge()  argument
5658 	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmse_merge()
5662 	struct xfs_mount		*mp = ip->i_mount;  in xfs_bmse_merge()
5664 	blockcount = left->br_blockcount + got->br_blockcount;  in xfs_bmse_merge()
5666 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));  in xfs_bmse_merge()
5667 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));  in xfs_bmse_merge()
5674 	 * Update the on-disk extent count, the btree if necessary and log the  in xfs_bmse_merge()
5677 	ifp->if_nextents--;  in xfs_bmse_merge()
5689 		return -EFSCORRUPTED;  in xfs_bmse_merge()
5695 		return -EFSCORRUPTED;  in xfs_bmse_merge()
5702 		return -EFSCORRUPTED;  in xfs_bmse_merge()
5709 	error = xfs_bmap_btree_to_extents(tp, ip, cur, logflags, whichfork);  in xfs_bmse_merge()
5714 	xfs_iext_remove(ip, icur, 0);  in xfs_bmse_merge()
5716 	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork), icur,  in xfs_bmse_merge()
5720 	xfs_rmap_unmap_extent(tp, ip, whichfork, got);  in xfs_bmse_merge()
5722 	new.br_startoff = left->br_startoff + left->br_blockcount;  in xfs_bmse_merge()
5723 	xfs_rmap_map_extent(tp, ip, whichfork, &new);  in xfs_bmse_merge()
5730 	struct xfs_inode	*ip,  in xfs_bmap_shift_update_extent()  argument
5738 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_shift_update_extent()
5744 	got->br_startoff = startoff;  in xfs_bmap_shift_update_extent()
5751 			return -EFSCORRUPTED;  in xfs_bmap_shift_update_extent()
5760 	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork), icur,  in xfs_bmap_shift_update_extent()
5764 	xfs_rmap_unmap_extent(tp, ip, whichfork, &prev);  in xfs_bmap_shift_update_extent()
5765 	xfs_rmap_map_extent(tp, ip, whichfork, got);  in xfs_bmap_shift_update_extent()
5772 	struct xfs_inode	*ip,  in xfs_bmap_collapse_extents()  argument
5778 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_collapse_extents()
5779 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_collapse_extents()
5789 		return -EFSCORRUPTED;  in xfs_bmap_collapse_extents()
5793 		return -EIO;  in xfs_bmap_collapse_extents()
5795 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));  in xfs_bmap_collapse_extents()
5797 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmap_collapse_extents()
5798 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmap_collapse_extents()
5803 	if (ifp->if_flags & XFS_IFBROOT) {  in xfs_bmap_collapse_extents()
5804 		cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);  in xfs_bmap_collapse_extents()
5805 		cur->bc_ino.flags = 0;  in xfs_bmap_collapse_extents()
5808 	if (!xfs_iext_lookup_extent(ip, ifp, *next_fsb, &icur, &got)) {  in xfs_bmap_collapse_extents()
5813 		error = -EFSCORRUPTED;  in xfs_bmap_collapse_extents()
5817 	new_startoff = got.br_startoff - offset_shift_fsb;  in xfs_bmap_collapse_extents()
5820 			error = -EINVAL;  in xfs_bmap_collapse_extents()
5825 			error = xfs_bmse_merge(tp, ip, whichfork,  in xfs_bmap_collapse_extents()
5834 			error = -EINVAL;  in xfs_bmap_collapse_extents()
5839 	error = xfs_bmap_shift_update_extent(tp, ip, whichfork, &icur, &got,  in xfs_bmap_collapse_extents()
5855 		xfs_trans_log_inode(tp, ip, logflags);  in xfs_bmap_collapse_extents()
5859 /* Make sure we won't be right-shifting an extent past the maximum bound. */
5862 	struct xfs_inode	*ip,  in xfs_bmap_can_insert_extents()  argument
5870 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));  in xfs_bmap_can_insert_extents()
5872 	if (XFS_FORCED_SHUTDOWN(ip->i_mount))  in xfs_bmap_can_insert_extents()
5873 		return -EIO;  in xfs_bmap_can_insert_extents()
5875 	xfs_ilock(ip, XFS_ILOCK_EXCL);  in xfs_bmap_can_insert_extents()
5876 	error = xfs_bmap_last_extent(NULL, ip, XFS_DATA_FORK, &got, &is_empty);  in xfs_bmap_can_insert_extents()
5879 		error = -EINVAL;  in xfs_bmap_can_insert_extents()
5880 	xfs_iunlock(ip, XFS_ILOCK_EXCL);  in xfs_bmap_can_insert_extents()
5888 	struct xfs_inode	*ip,  in xfs_bmap_insert_extents()  argument
5895 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_insert_extents()
5896 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_insert_extents()
5906 		return -EFSCORRUPTED;  in xfs_bmap_insert_extents()
5910 		return -EIO;  in xfs_bmap_insert_extents()
5912 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));  in xfs_bmap_insert_extents()
5914 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmap_insert_extents()
5915 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmap_insert_extents()
5920 	if (ifp->if_flags & XFS_IFBROOT) {  in xfs_bmap_insert_extents()
5921 		cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);  in xfs_bmap_insert_extents()
5922 		cur->bc_ino.flags = 0;  in xfs_bmap_insert_extents()
5933 		if (!xfs_iext_lookup_extent(ip, ifp, *next_fsb, &icur, &got)) {  in xfs_bmap_insert_extents()
5939 		error = -EFSCORRUPTED;  in xfs_bmap_insert_extents()
5944 		error = -EFSCORRUPTED;  in xfs_bmap_insert_extents()
5951 			error = -EINVAL;  in xfs_bmap_insert_extents()
5965 	error = xfs_bmap_shift_update_extent(tp, ip, whichfork, &icur, &got,  in xfs_bmap_insert_extents()
5981 		xfs_trans_log_inode(tp, ip, logflags);  in xfs_bmap_insert_extents()
5986  * Splits an extent into two extents at split_fsb block such that it is the
5987  * first block of the current_ext. @ext is a target extent to be split.
5988  * @split_fsb is a block where the extents is split.  If split_fsb lies in a
5989  * hole or the first block of extents, just return 0.
5994 	struct xfs_inode	*ip,  in xfs_bmap_split_extent()  argument
5998 	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, whichfork);  in xfs_bmap_split_extent()
6002 	struct xfs_mount		*mp = ip->i_mount;  in xfs_bmap_split_extent()
6003 	xfs_fsblock_t			gotblkcnt; /* new block count for got */  in xfs_bmap_split_extent()
6011 		return -EFSCORRUPTED;  in xfs_bmap_split_extent()
6015 		return -EIO;  in xfs_bmap_split_extent()
6017 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {  in xfs_bmap_split_extent()
6019 		error = xfs_iread_extents(tp, ip, whichfork);  in xfs_bmap_split_extent()
6027 	if (!xfs_iext_lookup_extent(ip, ifp, split_fsb, &icur, &got) ||  in xfs_bmap_split_extent()
6031 	gotblkcnt = split_fsb - got.br_startoff;  in xfs_bmap_split_extent()
6034 	new.br_blockcount = got.br_blockcount - gotblkcnt;  in xfs_bmap_split_extent()
6037 	if (ifp->if_flags & XFS_IFBROOT) {  in xfs_bmap_split_extent()
6038 		cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);  in xfs_bmap_split_extent()
6039 		cur->bc_ino.flags = 0;  in xfs_bmap_split_extent()
6044 			error = -EFSCORRUPTED;  in xfs_bmap_split_extent()
6050 	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork), &icur,  in xfs_bmap_split_extent()
6063 	xfs_iext_insert(ip, &icur, &new, 0);  in xfs_bmap_split_extent()
6064 	ifp->if_nextents++;  in xfs_bmap_split_extent()
6071 			error = -EFSCORRUPTED;  in xfs_bmap_split_extent()
6078 			error = -EFSCORRUPTED;  in xfs_bmap_split_extent()
6086 	if (xfs_bmap_needs_btree(ip, whichfork)) {  in xfs_bmap_split_extent()
6090 		error = xfs_bmap_extents_to_btree(tp, ip, &cur, 0,  in xfs_bmap_split_extent()
6097 		cur->bc_ino.allocated = 0;  in xfs_bmap_split_extent()
6102 		xfs_trans_log_inode(tp, ip, logflags);  in xfs_bmap_split_extent()
6111 	return  bmap->br_startblock != HOLESTARTBLOCK &&  in xfs_bmap_is_update_needed()
6112 		bmap->br_startblock != DELAYSTARTBLOCK;  in xfs_bmap_is_update_needed()
6120 	struct xfs_inode		*ip,  in __xfs_bmap_add()  argument
6126 	trace_xfs_bmap_defer(tp->t_mountp,  in __xfs_bmap_add()
6127 			XFS_FSB_TO_AGNO(tp->t_mountp, bmap->br_startblock),  in __xfs_bmap_add()
6129 			XFS_FSB_TO_AGBNO(tp->t_mountp, bmap->br_startblock),  in __xfs_bmap_add()
6130 			ip->i_ino, whichfork,  in __xfs_bmap_add()
6131 			bmap->br_startoff,  in __xfs_bmap_add()
6132 			bmap->br_blockcount,  in __xfs_bmap_add()
6133 			bmap->br_state);  in __xfs_bmap_add()
6136 	INIT_LIST_HEAD(&bi->bi_list);  in __xfs_bmap_add()
6137 	bi->bi_type = type;  in __xfs_bmap_add()
6138 	bi->bi_owner = ip;  in __xfs_bmap_add()
6139 	bi->bi_whichfork = whichfork;  in __xfs_bmap_add()
6140 	bi->bi_bmap = *bmap;  in __xfs_bmap_add()
6142 	xfs_defer_add(tp, XFS_DEFER_OPS_TYPE_BMAP, &bi->bi_list);  in __xfs_bmap_add()
6150 	struct xfs_inode	*ip,  in xfs_bmap_map_extent()  argument
6156 	__xfs_bmap_add(tp, XFS_BMAP_MAP, ip, XFS_DATA_FORK, PREV);  in xfs_bmap_map_extent()
6163 	struct xfs_inode	*ip,  in xfs_bmap_unmap_extent()  argument
6169 	__xfs_bmap_add(tp, XFS_BMAP_UNMAP, ip, XFS_DATA_FORK, PREV);  in xfs_bmap_unmap_extent()
6179 	struct xfs_inode		*ip,  in xfs_bmap_finish_one()  argument
6189 	ASSERT(tp->t_firstblock == NULLFSBLOCK);  in xfs_bmap_finish_one()
6191 	trace_xfs_bmap_deferred(tp->t_mountp,  in xfs_bmap_finish_one()
6192 			XFS_FSB_TO_AGNO(tp->t_mountp, startblock), type,  in xfs_bmap_finish_one()
6193 			XFS_FSB_TO_AGBNO(tp->t_mountp, startblock),  in xfs_bmap_finish_one()
6194 			ip->i_ino, whichfork, startoff, *blockcount, state);  in xfs_bmap_finish_one()
6197 		return -EFSCORRUPTED;  in xfs_bmap_finish_one()
6199 	if (XFS_TEST_ERROR(false, tp->t_mountp,  in xfs_bmap_finish_one()
6201 		return -EIO;  in xfs_bmap_finish_one()
6205 		error = xfs_bmapi_remap(tp, ip, startoff, *blockcount,  in xfs_bmap_finish_one()
6210 		error = __xfs_bunmapi(tp, ip, startoff, blockcount,  in xfs_bmap_finish_one()
6215 		error = -EFSCORRUPTED;  in xfs_bmap_finish_one()
6224 	struct xfs_inode	*ip,  in xfs_bmap_validate_extent()  argument
6228 	struct xfs_mount	*mp = ip->i_mount;  in xfs_bmap_validate_extent()
6232 	isrt = XFS_IS_REALTIME_INODE(ip);  in xfs_bmap_validate_extent()
6233 	endfsb = irec->br_startblock + irec->br_blockcount - 1;  in xfs_bmap_validate_extent()
6235 		if (!xfs_verify_rtbno(mp, irec->br_startblock))  in xfs_bmap_validate_extent()
6240 		if (!xfs_verify_fsbno(mp, irec->br_startblock))  in xfs_bmap_validate_extent()
6244 		if (XFS_FSB_TO_AGNO(mp, irec->br_startblock) !=  in xfs_bmap_validate_extent()
6248 	if (irec->br_state != XFS_EXT_NORM && whichfork != XFS_DATA_FORK)  in xfs_bmap_validate_extent()