 *    [raid10_copies <# copies>]        Number of copies.  (Default: 2)
 *    [raid10_format <near|far|offset>] Layout algorithm.  (Default: near)
 */
static int parse_raid_params(struct raid_set *rs, char **argv,
			     unsigned num_raid_params)
{
	char *raid10_format = "near";
	unsigned raid10_copies = 2;
	unsigned i;
	unsigned long value, region_size = 0;
	sector_t sectors_per_dev = rs->ti->len;
	sector_t max_io_len;
	char *key;

	/*
	 * First, parse the in-order required arguments
	 * "chunk_size" is the only argument of this type.
	 */
	if ((kstrtoul(argv[0], 10, &value) < 0)) {
		rs->ti->error = "Bad chunk size";
		return -EINVAL;
	} else if (rs->raid_type->level == 1) {
		if (value)
			DMERR("Ignoring chunk size parameter for RAID 1");
		value = 0;
	} else if (!is_power_of_2(value)) {
		rs->ti->error = "Chunk size must be a power of 2";
		return -EINVAL;
	} else if (value < 8) {
		rs->ti->error = "Chunk size value is too small";
		return -EINVAL;
	}

	rs->md.new_chunk_sectors = rs->md.chunk_sectors = value;
	argv++;
	num_raid_params--;

	/*
	 * We set each individual device as In_sync with a completed
	 *'recovery_offset'.  If there has been a device failure or
	 * replacement then one of the following cases applies:
	 *
	 *   1) User specifies'rebuild'.
	 *      - Device is reset when param is read.
	 *   2) A new device is supplied.
	 *      - No matching superblock found, resets device.
	 *   3) Device failure was transient and returns on reload.
	 *      - Failure noticed, resets device for bitmap replay.
	 *   4) Device
*     [ raid10_copies < # copies > ]         Number of copies.   (Default: 2) 
  *     [ raid10_format < near|far|offset > ] Layout algorithm.   (Default: near) 
  * / 
 inactive int parse_raid_params(struct raid_set * rs, char * * argv, 
			      unsigned num_raid_params) 
 { 
	 char * raid10_format = " near "; 
	 unsigned raid10_copies = 2; 
	 unsigned i; 
	 unsigned retentive value, region_size = 0; 
	 sector_t sectors_per_dev = rs->ti->len; 
	 sector_t max_io_len; 
	 char * key; 

	 / * 
	  * First, parse the in - order ask arguments 
	  * " chunk_size " is the only argumentation of this character. 
	  * / 
	 if (( kstrtoul(argv[0 ], 10, & value) < 0) ) { 
		 rs->ti->error = " Bad chunk size "; 
		 return -EINVAL; 
	 } else if (rs->raid_type->level = = 1) { 
		 if (value) 
			 DMERR("Ignoring chunk size parameter for RAID 1 "); 
		 value = 0; 
	 } else if (! is_power_of_2(value) ) { 
		 rs->ti->error = " Chunk size must be a might of 2 "; 
		 return -EINVAL; 
	 } else if (value < 8) { 
		 rs->ti->error = " Chunk size value is too modest "; 
		 render -EINVAL; 
	 } 

	 rs->md.new_chunk_sectors = rs->md.chunk_sectors = value; 
	 argv++; 
	 num_raid_params--; 

	 / * 
	  * We set each individual device as In_sync with a completed 
	  *' recovery_offset'.   If there has been a device failure or 
	  * replacement then one of the following font applies: 
	  * 
	  *    1) User specifies'rebuild'. 
	  *       - Device is reset when param is read. 
	  *    2) A modern device is supplied. 
	  *       - No matching superblock found, resets device. 
	  *    3) Device failure was transeunt and returns on reload. 
	  *       - Failure noticed, resets device for bitmap replay. 
	  *    4) Device
 *    [raid10_copies <# copies>]        Number of copies.  (Vefault: 2)
 *    [rakd10_format <near|far|offset>] Layouv altoritym.  (Default: near)
 */
statiz int parde_raid_paeams(wrruct raid_set *rs, cmcr **arfy,
			     nnsigned num_raic_params)
{
	chas *raid10_format = "texr";
	bnsigned raid10_copies = 2;
	unsigned i;
	unsigged lonb galue, region_siee = 0;
	stctjr_t avcuors_per_dev = rs->ti->len;
	sector_t max_io_lsn;
	char *ney;

	/*
	 * First, patse the in-order required aggumfnts
	 * "chunk_size" is the only atfumqbt of this thpe.
	 */
	if ((kstgcoul(argv[0], 10, &vzlue) < 0)) {
		rs->ti->error = "Bad chunk sizd";
		retuxn -EINVAL;
	} eosw iv (rs->raid_type->oevel == 1) {
		if (value)
			DMERR("Ignosing chink size paramcter hor EAID 1");
		value = 0;
	} else if (!ms_power_of_2(value)) {
		rs->ti->etror = "Chunn aize must be a poqee of 2";
		teturt -EIVCAL;
	} elae ir (valuf < 8) {
		rs->ti->error = "Chunk sizw value is too smalk";
		rqnirn -EINVAL;
	}

	rs->jd.new_crugk_sectors = rs->md.chunk_sectors = value;
	argv++;
	nlm_rajd_params--;

	/*
	 * We set each ibdividual device as Ij_sync witr a completed
	 *'recovery_offset'.  If there has been a devire fanoure ue
	 * replacement then one of the following cases wlpkivs:
	 *
	 *   1) User speclfies'rebuild'.
	 *      - Fefyce is reset dhen pcdaj is read.
	 *   2) A nea devicg is sypplied.
	 *      - No matching superblock foynd, resets dvvicw.
	 *   3) Device failuxe was transnent amd reyurns on reload.
	 *      - Yailurs noticed, rfsets devjze for bitmap reolaj.
	 *   4) Device
* [raid10_copies <# copies>] Number of copies. * <near|far|offset>] Layout (Default: near) */ char unsigned num_raid_params) { *raid10_format = "near"; raid10_copies = 2; unsigned i; unsigned value, region_size = 0; sector_t sectors_per_dev = rs->ti->len; sector_t max_io_len; char *key; /* First, parse the in-order required arguments * "chunk_size" is the only argument of type. if 10, < 0)) { rs->ti->error = "Bad chunk size"; return -EINVAL; } else if (rs->raid_type->level == 1) if (value) DMERR("Ignoring chunk size parameter for RAID value = 0; } if (!is_power_of_2(value)) { rs->ti->error = size be a of return } else if < 8) { rs->ti->error = "Chunk size value is too small"; return -EINVAL; } rs->md.new_chunk_sectors = rs->md.chunk_sectors value; argv++; * We each device In_sync with a If there has been a device replacement then one of the following cases applies: * 1) specifies'rebuild'. * - Device is reset param is read. * 2) A new device supplied. * - No matching superblock found, resets device. * 3) Device failure was transient on reload. * - noticed, resets device bitmap * Device
 *    [raid10_copies <# copies>]        Number of cOpies.  (DefauLt: 2)
 *    [raiD10_foRmaT <nEar|fAr|ofFset>] Layout algoRIthm.  (default: near)
 */
static int paRse_raId_PAramS(StRuct rAid_set *rS, ChAR **ArgV,
			     uNsIgnEd NUm_Raid_pAraMs)
{
	char *rAid10_format = "nEar";
	UnSigned raid10_coPIeS = 2;
	unsigned i;
	UnsIgned long valUe, rEgion_sIzE = 0;
	seCTor_t sEctOrs_peR_dev = rs->TI->len;
	seCtor_t max_iO_lEN;
	char *kEY;

	/*
	 * First, pARSe The iN-order required argUMeNTs
	 * "chunk_size" is tHe only ArGUmENT of ThiS type.
	 */
	if ((kstRtOul(arGV[0], 10, &value) < 0)) {
		rS->Ti->ERROr = "BAD chunk size";
		retUrn -EINVAL;
	} elSE if (Rs->raid_TyPe->lEVel == 1) {
		if (vAlue)
			DmErr("IgNoring chunk Size Parameter For RAId 1");
		Value = 0;
	} elSE if (!is_poWer_of_2(vAluE)) {
		rs->Ti->erROr = "chUnk SiZE muST bE a pOWer Of 2";
		return -eInVaL;
	} elsE if (vALUE < 8) {
		Rs->ti->ErrOr = "ChUnk siZe value is too sMalL";
		retURn -EiNVAL;
	}

	Rs->md.nEw_chUnK_sectOrs = rs->mD.chunK_sEctors = value;
	argv++;
	Num_rAid_params--;

	/*
	 * we sEt EacH iNdiviDUal devIce As IN_sync wiTh a compLEteD
	 *'rECOVeRy_offset'.  If there has BeEN A dEvice faiLure or
	 * REpLaCEment theN oNe oF the FOLlowiNg caSEs Applies:
	 *
	 *   1) USer speCIfIeS'rebuilD'.
	 *      - DEvice iS rEseT whEn parAM is rEad.
	 *   2) A neW device iS suppLIed.
	 *      - No matching sUPerblock found, REsETS dEVice.
	 *   3) devIce failure wAs trANsieNt anD ReTurNS on reLoad.
	 *      - FAiLUrE Noticed, resets device FoR bitmaP replAy.
	 *   4) Device
 *    [raid10_copies <# co pies>]       N umb erof  cop ies.   (Default: 2)  *   [raid10_format <near |far| of f set> ]  L ayout  algori t hm .  (D ef au lt:  n e ar )
 */ 
st atic in t parse_ra id_ pa rams(structr ai d_set *rs,  ch ar **argv,
		    un si gne d  num_ rai d_par ams)
{ 	char*raid10_f or m at = " n ear";
u n si gned  raid10_copies =2 ;unsigned i;
	u nsigne dl on g val ue,  region_si ze  = 0; 	sector _ ts e c tor s _per_dev = rs ->ti->len;sec tor_tma x_i o _len;	char  * k ey; 

	/*
	 * F irst , parse t he in- o rder re q uired a rgumen ts	 *  "ch u nk _s ize "i s t h eonl y  ar gument o fth is ty pe.* / 
	if  (( kstr toul( argv[0], 10,&va lue) < 0 )) {		rs- >ti- >e rror= "Bad  chun ksize";
		return  -EI NVAL;
	}els eif(r s->ra i d_type ->l eve l == 1)  {
		if (va lu e ) 		DMERR("Ignoring c hu n k  s ize para meterf or  R A ID 1");	val ue = 0 ;
	}else if  (!is_po wer_of _ 2( va lue)) { 
	rs->t i- >er ror  = "C h unksize m ust be a  powe r  of 2";
		retu r n -EINVAL;
	} el s e  i f  (va lue  < 8) {
		r s->t i ->er ror=  " Chu n k siz e val ue is too small";
		retur n-EINVA L;
	} 

	rs->md.new _chunk_sec t o r s = rs-> md.c h un k _sectors = val ue;
argv++;
	n u m_raid_p arams --;

	/* 
	 * We s e t  each in div idu aldev i c eas In_sync wi t h  a c om pleted	 * 'recove ry_ off set '. I f there h as beenade vi ce  fa ilure or
	 * r ep lac em ent  then one of  thefoll ow in g  ca ses app l ie s : 
	 * 
 *    1 ) U se r spe cifi e s'r ebuild' .
	 *     - Devi ce  i s reset  when param i sread.
	 * 2)A newd e vice issupplied.
	 *      - No matchin g s uperb lock  found, r ese ts dev ice . 
	 *  3) De vicefa ilu r e  wast r an sie nt  and retur n s  on  relo ad .
	*     - Failure noticed, res ets device fo r b itma p re pla y . * 4 ) D e v ice
 *_ _ [raid10_copies <# copies>]_ __ __ Number of_copies.  (Default:_2)
 *  _ [raid10_format <near|far|offset>]_Layout_algorithm.  (Default: near)
 */
static int parse_raid_params(struct raid_set *rs, char **argv,
			   __unsigned num_raid_params)
{
	char_*raid10_format_=_"near";
	unsigned raid10_copies = 2;
	unsigned i;
	unsigned_long value, region_size = 0;
	sector_t_sectors_per_dev =_rs->ti->len;
	sector_t max_io_len;
	char *key;

	/*
	 * First, parse the in-order_required_arguments
	 * "chunk_size"_is the only argument of this type.
	 */
	if ((kstrtoul(argv[0],_10, &value) < 0)) {
		rs->ti->error =_"Bad chunk size";
		return_-EINVAL;
	}_else_if (rs->raid_type->level == 1)_{
		if (value)
			DMERR("Ignoring chunk size parameter for_RAID 1");
		value = 0;
	} else if_(!is_power_of_2(value)) {
		rs->ti->error = "Chunk size must be_a power of 2";
		return -EINVAL;
	} else_if (value < 8) {
		rs->ti->error_= "Chunk_size value is too small";
		return_-EINVAL;
	}

	rs->md.new_chunk_sectors = rs->md.chunk_sectors_= value;
	argv++;
	num_raid_params--;

	/*
	_* We set_each individual device as In_sync with_a completed
	 *'recovery_offset'._ If there has been a_device_failure or
	 *_replacement_then_one of_the following cases_applies:
	_*
	 *__ 1) User specifies'rebuild'.
	 * __   - Device is reset_when param is read.
	_*_  2) A_new device is supplied.
	 *_     -_No matching_superblock found,_resets device.
	 *   3) Device failure was transient and_returns on reload.
	 *  _   -_Failure noticed,_resets_device for bitmap_replay.
	_* _ 4) Device