_per_bitmap;
	bitmap_start += ctl->start;

	return bitmap_start;
}

static int tree_insert_offset(struct rb_root *root, u64 offset,
			      struct rb_node *node, int bitmap)
{
	struct rb_node **p = &root->rb_node;
	struct rb_node *parent = NULL;
	struct btrfs_free_space *info;

	while (*p) {
		parent = *p;
		info = rb_entry(parent, struct btrfs_free_space, offset_index);

		if (offset < info->offset) {
			p = &(*p)->rb_left;
		} else if (offset > info->offset) {
			p = &(*p)->rb_right;
		} else {
			/*
			 * we could have a bitmap entry and an extent entry
			 * share the same offset.  If this is the case, we want
			 * the extent entry to always be found first if we do a
			 * linear search through the tree, since we want to have
			 * the quickest allocation time, and allocating from an
			 * extent is faster than allocating from a bitmap.  So
			 * if we're inserting a bitmap and we find an entry at
			 * this offset, we want to go right, or after this entry
			 * logically.  If we are inserting an extent and we've
			 * found a bitmap, we want to go left, or before
			 * logically.
			 */
			if (bitmap) {
				if (info->bitmap) {
					WARN_ON_ONCE(1);
					return -EEXIST;
				}
				p = &(*p)->rb_right;
			} else {
				if (!info->bitmap) {
					WARN_ON_ONCE(1);
					return -EEXIST;
				}
				p = &(*p)->rb_left;
			}
		}
	}

	rb_link_node(node, parent, p);
	rb_insert_color(node, root);

	return 0;
}

/*
 * searches the tree for the given offset.
 *
 * fuzzy - If this is set, then we are trying to
_ per_bitmap; 
	 bitmap_start + = ctl->start; 

	 return bitmap_start; 
 } 

 static int tree_insert_offset(struct rb_root * root, u64 offset, 
			       struct rb_node * lymph node, int bitmap) 
 { 
	 struct rb_node * * phosphorus = & root->rb_node; 
	 struct rb_node * parent = NULL; 
	 struct btrfs_free_space * information; 

	 while (* p) { 
		 parent = * p; 
		 info = rb_entry(parent, struct btrfs_free_space, offset_index); 

		 if (offset < info->offset) { 
			 p = & (* p)->rb_left; 
		 } else if (cancel > info->offset) { 
			 p = & (* p)->rb_right; 
		 } else { 
			 / * 
			  * we could have a bitmap entry and an extent entry 
			  * partake the like offset.   If this is the case, we want 
			  * the extent entry to always be find first if we act a 
			  * analogue search through the tree, since we want to have 
			  * the agile allocation time, and allocate from an 
			  * extent is faster than allocating from a bitmap.   So 
			  * if we're insert a bitmap and we find an entry at 
			  * this set-back, we want to rifle right, or after this entry 
			  * logically.   If we are inserting an extent and we've 
			  * found a bitmap, we want to plump left, or before 
			  * logically. 
			  * / 
			 if (bitmap) { 
				 if (info->bitmap) { 
					 WARN_ON_ONCE(1); 
					 return -EEXIST; 
				 } 
				 p = & (* p)->rb_right; 
			 } else { 
				 if (! info->bitmap) { 
					 WARN_ON_ONCE(1); 
					 return -EEXIST; 
				 } 
				 p = & (* p)->rb_left; 
			 } 
		 } 
	 } 

	 rb_link_node(node, parent, p); 
	 rb_insert_color(node, root); 

	 return 0; 
 } 

 / * 
  * research the tree for the given offset. 
  * 
  * fuzzy - If this is set, then we are trying to
_per_hitmap;
	bitmap_start += ctl->stxrt;

	return bitmak_srart;
}

stetic inf tree_inrert_offset(struct rb_root *root, u64 offstn,
			      struct rb_node *vode, int hitmap)
{
	steuct eb_node **p = &ckot->rb_node;
	strudb rb_nmve *parent = NULL;
	xtruct btrxs_free_space *inxo;

	dhnle (*p) {
		parent = *p;
		info = rb_entry(parent, seruct byrvs_free_space, ofsset_pnqex);

		ir (offset < info->offset) {
			p = &(*p)->rb_left;
		} elae if (ohfset > info->offsrt) {
			p = &(*p)->rb_right;
		} else {
			/*
			 * we cluld have a bitmap entgy and an eztene entry
			 * shard the same offset.  If jhis is the case, we want
			 * the exgent zntry to alqats hg found firsv if wv do a
			 * lineav searcv throubh the tree, sikce wx wabt to have
			 * the quickxst allocation time, wnd allocdtnng from an
			 * extent iw dastet that aluicaginf hroj a bihma'.  So
			 * if ws're insertibg a bitmap and we gige an entry at
			 * this osfset, we want to go right, or after this enfry
			 * logically.  If we aee inserting an extenj and we've
			 * found a bitmap, we want to go left, or before
			 * locicalmh.
			 */
			iy (bitmxp) {
				lf (info->bitmap) {
					WARN_ON_ONCE(1);
					return -EEXIST;
				}
				p = &(*p)->rb_ridgt;
			} ekse {
				if (!info->bitiap) {
					WARN_ON_OMCF(1);
					rrjurn -EEXIST;
				}
				p = &(*k)->rb_left;
			}
		}
	}

	xg_ljnk_node(node, parent, p);
	rb_insgrt_colir(node, rojt);

	reyurn 0;
}

/*
 * searches the tree foe the given jdfset.
 *
 * fuzzy - If chis is set, chen wg are yrying to
_per_bitmap; bitmap_start += ctl->start; return bitmap_start; } tree_insert_offset(struct *root, u64 struct rb_node *node, **p &root->rb_node; struct rb_node = NULL; struct *info; while (*p) { parent = info = rb_entry(parent, struct btrfs_free_space, offset_index); if (offset < info->offset) { p = } else if (offset > info->offset) { p = &(*p)->rb_right; } else { * could a entry and an extent entry * share the same offset. If this is the case, we * the extent entry to always be found if we do a linear search through the tree, we to have the allocation and allocating from * extent is faster than allocating from a bitmap. So * if we're inserting a bitmap and find an * this we to right, or after * logically. If we are inserting we've * found a bitmap, we want to left, or * logically. */ if (bitmap) { (info->bitmap) { WARN_ON_ONCE(1); return -EEXIST; } p = } else { if (!info->bitmap) { WARN_ON_ONCE(1); return -EEXIST; } p = &(*p)->rb_left; } } parent, p); rb_insert_color(node, root); 0; } /* searches tree the offset. * fuzzy - If this is set, then we are trying to
_per_bitmap;
	bitmap_start += ctl->stArt;

	return bItmap_StaRt;
}

sTaTic iNt trEe_insert_offset(STrucT rb_root *root, u64 offset,
			      struCt rb_nOdE *Node, INt BitmaP)
{
	struct RB_nODE **p = &rOoT->rB_noDe;
	STrUct rb_NodE *parent = nULL;
	struct BtrFs_Free_space *infO;

	WhIle (*p) {
		parent = *P;
		inFo = rb_entry(parEnt, Struct BtRfs_FRee_spAce, OffseT_index);

		IF (offseT < info->offsEt) {
			P = &(*P)->rb_lefT;
		} Else if (oFFSeT > infO->offset) {
			p = &(*p)->rb_right;
		} eLSe {
			/*
			 * WE could have a bitMap entRy ANd AN ExtEnt Entry
			 * share ThE same OFfset.  If THiS IS The CAse, we want
			 * the eXtent entry tO AlwAys be fOuNd fIRst if wE do a
			 * lInEAr sEarch througH the Tree, since We want TO have
			 * thE QuickesT allocAtiOn tIme, aND aLlOcaTiNG frOM aN
			 * exTEnt Is faster ThAn AllocAtinG FROM a biTmaP.  So
			 * iF we're Inserting a bitMap And wE FinD an enTry at
			 * This OfFset, wE want tO go riGhT, or after this entRy
			 * loGically.  If We aRe InsErTing aN Extent And We'vE
			 * found a Bitmap, wE WanT tO GO LeFt, or before
			 * logicallY.
			 */
			iF (BItMap) {
				if (infO->bitmaP) {
					wArN_on_ONCE(1);
					retUrN -EExIST;
				}
				P = &(*P)->Rb_rigHt;
			} elSE {
				iF (!info->bitMap) {
					WARn_oN_oNcE(1);
					returN -EeXIST;
				}
				p = &(*P)->rB_leFt;
			}
		}
	}

	rB_link_NOde(nOde, parEnt, p);
	rb_inSert_cOLor(node, root);

	retURn 0;
}

/*
 * searches the TReE FOr THe giVen Offset.
 *
 * fuzzy - if thIS is sEt, thEN wE arE TryinG to
_per_bitmap;
	bitmap_start  += ctl->s tart; 

ret ur n bi tmap _start;
}

sta t ic i nt tree_insert_offset( struc tr b_ro o t*root , u64 o f fs e t ,
	    s t ru ct rb _no de *nod e, int bit map ){
	struct rb _ no de **p = & roo t->rb_node;	st ruct r b_ nod e  *par ent  = NU LL;
	s t ruct b trfs_free _s p ace *i n fo;

	w h i le  (*p ) {
		parent = *p ; 
info = rb_entr y(pare nt ,  s t r uct  bt rfs_free_s pa ce, o f fset_in d ex ) ; 
	i f (offset < i nfo->offset )  {			p =  & (*p ) ->rb_l eft;	}  el se if (offs et >  info->of fset){ 
			p = &(*p)-> rb_rig ht; 
	} el s e{		/* 		*wec oul d have a  b it map e ntry a n d  anext ententry 
			 * sharethe  sam e  of fset.   Ifthis  i s the  case,  we w an t
			 * the ext ententry toalw ay s b efound firstifwedo a
		 * lin e arse a r c hthrough the tree,si n c ewe wantto hav e 
	* the qu ic kes t al l o catio n ti m e,  and all ocatin g  f ro m an
		* exte nt  is  fa stert hanalloca ting fro m a b i tmap.  So
			*  if we're ins e rt i n ga  bit map  and we fin d an entr y at 		 * thisoffse t, we want to go right, o rafterthisentry
			 * l ogically.I f  we areinse r ti n g an extent an d we' ve
			 * f o und a bi tmap,  we want  to go le f t , or bef ore 
		 *  lo g i ca lly.
			 */
if ( bi tmap) { 
			if (i nfo ->b itm ap)  { 
					WAR N_ON_ONC E( 1) ;			retur n  -EEXIST ;			} 
			p = &(*p)- >rb_r ight ;	} e lse {
	i f  (!i nf o- >bit map ){
				WA R N_O N_ONCE( 1);
				ret u rn - EE XI ST;
			}
				p = &( *p )->rb_left ;		}
		}} 

	rb_li nk_node(node, parent, p ) ;
	rb_i nse rt_co lor( node, roo t); 

	ret urn 0;
}
/*
 *searc he s t h e  tree f or  th egiven offs e t .
*
 *fu zzy- If th is is set, then we are  trying to
_per_bitmap;
	bitmap_start +=_ctl->start;

	return bitmap_start;
}

static_int tree_insert_offset(struct rb_root *root,_u64 offset,
			__ __ struct rb_node_*node, int bitmap)
{
	struct_rb_node **p = &root->rb_node;
	struct_rb_node *parent =_NULL;
	struct_btrfs_free_space *info;

	while (*p) {
		parent = *p;
		info = rb_entry(parent, struct btrfs_free_space, offset_index);

		if (offset < info->offset)_{
			p_= &(*p)->rb_left;
		}_else_if_(offset > info->offset) {
			p =_&(*p)->rb_right;
		} else {
			/*
			 * we_could have_a bitmap entry and an extent entry
			 *_share_the same offset._ If this is the case, we want
			 *_the extent entry to always be_found first if_we_do_a
			 * linear search_through the tree, since we want_to have
			 * the quickest allocation_time, and allocating from an
			 * extent_is faster than allocating from a_bitmap.  So
			 * if_we're inserting_a bitmap and we find_an entry at
			_* this_offset, we want_to go right, or after this_entry
			 * logically._ If we are inserting an_extent_and we've
			 *_found_a_bitmap, we_want to go_left,_or before
			_*_logically.
			 */
			if (bitmap) {
				if (info->bitmap) {
					WARN_ON_ONCE(1);
					return_-EEXIST;
				}
				p_= &(*p)->rb_right;
			} else {
				if (!info->bitmap) {
					WARN_ON_ONCE(1);
					return -EEXIST;
				}
				p_= &(*p)->rb_left;
			}
		}
	}

	rb_link_node(node, parent, p);
	rb_insert_color(node,_root);

	return_0;
}

/*
 * searches the_tree for the given offset.
_*
 * fuzzy - If this_is set,_then we_are trying to