Re: [PATCH 4/6] mkfs: merge tables for opts parsing into one table

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On Fri, Aug 11, 2017 at 02:30:35PM +0200, Jan Tulak wrote:
> Merge separate instances of opt_params into one indexable table. Git
> makes this patch looks a bit more complicated, but it does not change
> values or structure of anything else. It only moves all the "struct
> opt_params dopts = {...}", changes indentation for these substructures
> and replaces their usage (dopts -> opts[OPT_D]).
> 
> The reason for this is to be able to address all options from any single
> one, even across OPT_X. Right now, we can do automated conflict checks
> only within one OPT_X, but after this, it is possible to extend the
> conflict declaration to other options as well.
> 
> Signed-off-by: Jan Tulak <jtulak@xxxxxxxxxx>
> ---
> Change:
>  * expand bounds check to newly added opt parameter in get/set functions
>  * updated description
> ---
>  mkfs/xfs_mkfs.c | 1341 +++++++++++++++++++++++++++++--------------------------
>  1 file changed, 696 insertions(+), 645 deletions(-)
> 
> diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
> index 78e27498..e3f7d345 100644
> --- a/mkfs/xfs_mkfs.c
> +++ b/mkfs/xfs_mkfs.c
> @@ -39,6 +39,7 @@ static int  ispow2(unsigned int i);
>  unsigned int		blocksize;
>  unsigned int		sectorsize;
>  
> +#define MAX_OPTS	16
>  #define MAX_SUBOPTS	16
>  #define SUBOPT_NEEDS_VAL	(-1LL)
>  #define MAX_CONFLICTS	8
> @@ -49,6 +50,10 @@ unsigned int		sectorsize;
>   *
>   * Description of the structure members follows:
>   *
> + * index MANDATORY
> + *   An integer denoting the position of the specific option in opts array,
> + *   counting from 0 up to MAX_OPTS.
> + *
>   * name MANDATORY
>   *   Name is a single char, e.g., for '-d file', name is 'd'.
>   *
> @@ -114,6 +119,7 @@ unsigned int		sectorsize;
>   *
>   */
>  struct opt_params {
> +	int		index;
>  	const char	name;
>  	const char	*subopts[MAX_SUBOPTS];
>  
> @@ -129,584 +135,592 @@ struct opt_params {
>  		long long	flagval;
>  		char		*raw_input;
>  	}		subopt_params[MAX_SUBOPTS];
> -};
> -
> -struct opt_params bopts = {
> -	.name = 'b',
> -	.subopts = {
> +} opts[MAX_OPTS] = {
> +#define OPT_B	0
> +	{
> +		.index = OPT_B,
> +		.name = 'b',
> +		.subopts = {
>  #define	B_LOG		0
> -		"log",
> +			"log",
>  #define	B_SIZE		1
> -		"size",
> -		NULL
> -	},
> -	.subopt_params = {
> -		{ .index = B_LOG,

I /really/ wish there was a way calculate these automatically, but I
don't think I know of any such way, at least not without using horrid
macros.

> -		  .conflicts = { B_SIZE,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_MIN_BLOCKSIZE_LOG,
> -		  .maxval = XFS_MAX_BLOCKSIZE_LOG,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +			"size",
> +			NULL
>  		},
> -		{ .index = B_SIZE,
> -		  .convert = true,
> -		  .is_power_2 = true,
> -		  .conflicts = { B_LOG,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_MIN_BLOCKSIZE,
> -		  .maxval = XFS_MAX_BLOCKSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +		.subopt_params = {
> +			{ .index = B_LOG,
> +			  .conflicts = { B_SIZE,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_MIN_BLOCKSIZE_LOG,
> +			  .maxval = XFS_MAX_BLOCKSIZE_LOG,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = B_SIZE,
> +			  .convert = true,
> +			  .is_power_2 = true,
> +			  .conflicts = { B_LOG,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_MIN_BLOCKSIZE,
> +			  .maxval = XFS_MAX_BLOCKSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
>  		},
>  	},
> -};
> -
> -struct opt_params dopts = {
> -	.name = 'd',
> -	.subopts = {
> -#define	D_AGCOUNT	0
> -		"agcount",
> -#define	D_FILE		1
> -		"file",
> -#define	D_NAME		2
> -		"name",
> -#define	D_SIZE		3
> -		"size",
> -#define D_SUNIT		4
> -		"sunit",
> -#define D_SWIDTH	5
> -		"swidth",
> -#define D_AGSIZE	6
> -		"agsize",
> -#define D_SU		7
> -		"su",
> -#define D_SW		8
> -		"sw",
> -#define D_SECTLOG	9
> -		"sectlog",
> -#define D_SECTSIZE	10
> -		"sectsize",
> -#define D_NOALIGN	11
> -		"noalign",
> -#define D_RTINHERIT	12
> -		"rtinherit",
> -#define D_PROJINHERIT	13
> -		"projinherit",
> -#define D_EXTSZINHERIT	14
> -		"extszinherit",
> -		NULL
> -	},
> -	.subopt_params = {
> -		{ .index = D_AGCOUNT,
> -		  .conflicts = { D_AGSIZE,
> -				 LAST_CONFLICT },
> -		  .minval = 1,
> -		  .maxval = XFS_MAX_AGNUMBER,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_FILE,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = D_NAME,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_SIZE,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .convert = true,
> -		  .minval = XFS_AG_MIN_BYTES,
> -		  .maxval = LLONG_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_SUNIT,
> -		  .conflicts = { D_NOALIGN,
> -				 D_SU,
> -				 D_SW,
> -				 LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = UINT_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_SWIDTH,
> -		  .conflicts = { D_NOALIGN,
> -				 D_SU,
> -				 D_SW,
> -				 LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = UINT_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_AGSIZE,
> -		  .conflicts = { D_AGCOUNT,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .minval = XFS_AG_MIN_BYTES,
> -		  .maxval = XFS_AG_MAX_BYTES,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_SU,
> -		  .conflicts = { D_NOALIGN,
> -				 D_SUNIT,
> -				 D_SWIDTH,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .minval = 0,
> -		  .maxval = UINT_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_SW,
> -		  .conflicts = { D_NOALIGN,
> -				 D_SUNIT,
> -				 D_SWIDTH,
> -				 LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = UINT_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_SECTLOG,
> -		  .conflicts = { D_SECTSIZE,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_MIN_SECTORSIZE_LOG,
> -		  .maxval = XFS_MAX_SECTORSIZE_LOG,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_SECTSIZE,
> -		  .conflicts = { D_SECTLOG,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .is_power_2 = true,
> -		  .minval = XFS_MIN_SECTORSIZE,
> -		  .maxval = XFS_MAX_SECTORSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +#define OPT_D	1
> +	{
> +		.index = OPT_D,
> +		.name = 'd',
> +		.subopts = {
> +	#define	D_AGCOUNT	0
> +			"agcount",
> +	#define	D_FILE		1
> +			"file",
> +	#define	D_NAME		2
> +			"name",
> +	#define	D_SIZE		3
> +			"size",
> +	#define D_SUNIT		4
> +			"sunit",
> +	#define D_SWIDTH	5
> +			"swidth",
> +	#define D_AGSIZE	6
> +			"agsize",
> +	#define D_SU		7
> +			"su",
> +	#define D_SW		8
> +			"sw",
> +	#define D_SECTLOG	9
> +			"sectlog",
> +	#define D_SECTSIZE	10
> +			"sectsize",
> +	#define D_NOALIGN	11
> +			"noalign",
> +	#define D_RTINHERIT	12
> +			"rtinherit",
> +	#define D_PROJINHERIT	13
> +			"projinherit",
> +	#define D_EXTSZINHERIT	14
> +			"extszinherit",
> +			NULL
>  		},
> -		{ .index = D_NOALIGN,
> -		  .conflicts = { D_SU,
> -				 D_SW,
> -				 D_SUNIT,
> -				 D_SWIDTH,
> -				 LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = D_RTINHERIT,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 1,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = D_PROJINHERIT,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = UINT_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = D_EXTSZINHERIT,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = UINT_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +		.subopt_params = {
> +			{ .index = D_AGCOUNT,
> +			  .conflicts = { D_AGSIZE,
> +					 LAST_CONFLICT },
> +			  .minval = 1,
> +			  .maxval = XFS_MAX_AGNUMBER,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_FILE,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = D_NAME,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_SIZE,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .convert = true,
> +			  .minval = XFS_AG_MIN_BYTES,
> +			  .maxval = LLONG_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_SUNIT,
> +			  .conflicts = { D_NOALIGN,
> +					 D_SU,
> +					 D_SW,
> +					 LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = UINT_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_SWIDTH,
> +			  .conflicts = { D_NOALIGN,
> +					 D_SU,
> +					 D_SW,
> +					 LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = UINT_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_AGSIZE,
> +			  .conflicts = { D_AGCOUNT,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .minval = XFS_AG_MIN_BYTES,
> +			  .maxval = XFS_AG_MAX_BYTES,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_SU,
> +			  .conflicts = { D_NOALIGN,
> +					 D_SUNIT,
> +					 D_SWIDTH,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .minval = 0,
> +			  .maxval = UINT_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_SW,
> +			  .conflicts = { D_NOALIGN,
> +					 D_SUNIT,
> +					 D_SWIDTH,
> +					 LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = UINT_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_SECTLOG,
> +			  .conflicts = { D_SECTSIZE,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_MIN_SECTORSIZE_LOG,
> +			  .maxval = XFS_MAX_SECTORSIZE_LOG,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_SECTSIZE,
> +			  .conflicts = { D_SECTLOG,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .is_power_2 = true,
> +			  .minval = XFS_MIN_SECTORSIZE,
> +			  .maxval = XFS_MAX_SECTORSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_NOALIGN,
> +			  .conflicts = { D_SU,
> +					 D_SW,
> +					 D_SUNIT,
> +					 D_SWIDTH,
> +					 LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = D_RTINHERIT,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = D_PROJINHERIT,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = UINT_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = D_EXTSZINHERIT,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = UINT_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
>  		},
>  	},
> -};
> -
> -
> -struct opt_params iopts = {
> -	.name = 'i',
> -	.subopts = {
> +#define OPT_I	2
> +	{
> +		.index = OPT_I,
> +		.name = 'i',
> +		.subopts = {
>  #define	I_ALIGN		0
> -		"align",
> +			"align",
>  #define	I_LOG		1
> -		"log",
> +			"log",
>  #define	I_MAXPCT	2
> -		"maxpct",
> +			"maxpct",
>  #define	I_PERBLOCK	3
> -		"perblock",
> +			"perblock",
>  #define	I_SIZE		4
> -		"size",
> +			"size",
>  #define	I_ATTR		5
> -		"attr",
> +			"attr",
>  #define	I_PROJID32BIT	6
> -		"projid32bit",
> +			"projid32bit",
>  #define I_SPINODES	7
> -		"sparse",
> -		NULL
> -	},
> -	.subopt_params = {
> -		{ .index = I_ALIGN,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = I_LOG,
> -		  .conflicts = { I_PERBLOCK,
> -				 I_SIZE,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_DINODE_MIN_LOG,
> -		  .maxval = XFS_DINODE_MAX_LOG,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = I_MAXPCT,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 100,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +			"sparse",
> +			NULL
>  		},
> -		{ .index = I_PERBLOCK,
> -		  .conflicts = { I_LOG,
> -				 I_SIZE,
> -				 LAST_CONFLICT },
> -		  .is_power_2 = true,
> -		  .minval = XFS_MIN_INODE_PERBLOCK,
> -		  .maxval = XFS_MAX_BLOCKSIZE / XFS_DINODE_MIN_SIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = I_SIZE,
> -		  .conflicts = { I_PERBLOCK,
> -				 I_LOG,
> -				 LAST_CONFLICT },
> -		  .is_power_2 = true,
> -		  .minval = XFS_DINODE_MIN_SIZE,
> -		  .maxval = XFS_DINODE_MAX_SIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = I_ATTR,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 2,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = I_PROJID32BIT,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = I_SPINODES,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> +		.subopt_params = {
> +			{ .index = I_ALIGN,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = I_LOG,
> +			  .conflicts = { I_PERBLOCK,
> +					 I_SIZE,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_DINODE_MIN_LOG,
> +			  .maxval = XFS_DINODE_MAX_LOG,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = I_MAXPCT,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 100,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = I_PERBLOCK,
> +			  .conflicts = { I_LOG,
> +					 I_SIZE,
> +					 LAST_CONFLICT },
> +			  .is_power_2 = true,
> +			  .minval = XFS_MIN_INODE_PERBLOCK,
> +			  .maxval = XFS_MAX_BLOCKSIZE / XFS_DINODE_MIN_SIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = I_SIZE,
> +			  .conflicts = { I_PERBLOCK,
> +					 I_LOG,
> +					 LAST_CONFLICT },
> +			  .is_power_2 = true,
> +			  .minval = XFS_DINODE_MIN_SIZE,
> +			  .maxval = XFS_DINODE_MAX_SIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = I_ATTR,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 2,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = I_PROJID32BIT,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = I_SPINODES,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
>  		},
>  	},
> -};
> -
> -struct opt_params lopts = {
> -	.name = 'l',
> -	.subopts = {
> -#define	L_AGNUM		0
> -		"agnum",
> -#define	L_INTERNAL	1
> -		"internal",
> -#define	L_SIZE		2
> -		"size",
> -#define L_VERSION	3
> -		"version",
> -#define L_SUNIT		4
> -		"sunit",
> -#define L_SU		5
> -		"su",
> -#define L_DEV		6
> -		"logdev",
> -#define	L_SECTLOG	7
> -		"sectlog",
> -#define	L_SECTSIZE	8
> -		"sectsize",
> -#define	L_FILE		9
> -		"file",
> -#define	L_NAME		10
> -		"name",
> -#define	L_LAZYSBCNTR	11
> -		"lazy-count",
> -		NULL
> -	},
> -	.subopt_params = {
> -		{ .index = L_AGNUM,
> -		  .conflicts = { L_DEV,
> -				 LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = UINT_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_INTERNAL,
> -		  .conflicts = { L_FILE,
> -				 L_DEV,
> -				 LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> +#define OPT_L	3
> +	{
> +		.index = OPT_L,
> +		.name = 'l',
> +		.subopts = {
> +	#define	L_AGNUM		0
> +			"agnum",
> +	#define	L_INTERNAL	1
> +			"internal",
> +	#define	L_SIZE		2
> +			"size",
> +	#define L_VERSION	3
> +			"version",
> +	#define L_SUNIT		4
> +			"sunit",
> +	#define L_SU		5
> +			"su",
> +	#define L_DEV		6
> +			"logdev",
> +	#define	L_SECTLOG	7
> +			"sectlog",
> +	#define	L_SECTSIZE	8
> +			"sectsize",
> +	#define	L_FILE		9
> +			"file",
> +	#define	L_NAME		10
> +			"name",
> +	#define	L_LAZYSBCNTR	11
> +			"lazy-count",
> +			NULL
>  		},
> -		{ .index = L_SIZE,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .convert = true,
> -		  .minval = 2 * 1024 * 1024LL,	/* XXX: XFS_MIN_LOG_BYTES */
> -		  .maxval = XFS_MAX_LOG_BYTES,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_VERSION,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 1,
> -		  .maxval = 2,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_SUNIT,
> -		  .conflicts = { L_SU,
> -				 LAST_CONFLICT },
> -		  .minval = 1,
> -		  .maxval = BTOBB(XLOG_MAX_RECORD_BSIZE),
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_SU,
> -		  .conflicts = { L_SUNIT,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .minval = BBTOB(1),
> -		  .maxval = XLOG_MAX_RECORD_BSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_DEV,
> -		  .conflicts = { L_AGNUM,
> -				 L_INTERNAL,
> -				 LAST_CONFLICT },
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_SECTLOG,
> -		  .conflicts = { L_SECTSIZE,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_MIN_SECTORSIZE_LOG,
> -		  .maxval = XFS_MAX_SECTORSIZE_LOG,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_SECTSIZE,
> -		  .conflicts = { L_SECTLOG,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .is_power_2 = true,
> -		  .minval = XFS_MIN_SECTORSIZE,
> -		  .maxval = XFS_MAX_SECTORSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_FILE,
> -		  .conflicts = { L_INTERNAL,
> -				 LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = L_NAME,
> -		  .conflicts = { L_AGNUM,
> -				 L_INTERNAL,
> -				 LAST_CONFLICT },
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = L_LAZYSBCNTR,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> +		.subopt_params = {
> +			{ .index = L_AGNUM,
> +			  .conflicts = { L_DEV,
> +					 LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = UINT_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_INTERNAL,
> +			  .conflicts = { L_FILE,
> +					 L_DEV,
> +					 LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = L_SIZE,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .convert = true,
> +			  .minval = 2 * 1024 * 1024LL,	/* XXX: XFS_MIN_LOG_BYTES */

I recognize that this is a mechanical translation patch, but why does
this setter have an XXX comment for a #define that actually exists?  And
why does the value used differ??

If this needs fixing, please do it as a separate patch.

As far as this one goes,
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

> +			  .maxval = XFS_MAX_LOG_BYTES,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_VERSION,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 1,
> +			  .maxval = 2,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_SUNIT,
> +			  .conflicts = { L_SU,
> +					 LAST_CONFLICT },
> +			  .minval = 1,
> +			  .maxval = BTOBB(XLOG_MAX_RECORD_BSIZE),
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_SU,
> +			  .conflicts = { L_SUNIT,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .minval = BBTOB(1),
> +			  .maxval = XLOG_MAX_RECORD_BSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_DEV,
> +			  .conflicts = { L_AGNUM,
> +					 L_INTERNAL,
> +					 LAST_CONFLICT },
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_SECTLOG,
> +			  .conflicts = { L_SECTSIZE,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_MIN_SECTORSIZE_LOG,
> +			  .maxval = XFS_MAX_SECTORSIZE_LOG,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_SECTSIZE,
> +			  .conflicts = { L_SECTLOG,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .is_power_2 = true,
> +			  .minval = XFS_MIN_SECTORSIZE,
> +			  .maxval = XFS_MAX_SECTORSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_FILE,
> +			  .conflicts = { L_INTERNAL,
> +					 LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = L_NAME,
> +			  .conflicts = { L_AGNUM,
> +					 L_INTERNAL,
> +					 LAST_CONFLICT },
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = L_LAZYSBCNTR,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
>  		},
>  	},
> -};
> -
> -struct opt_params nopts = {
> -	.name = 'n',
> -	.subopts = {
> -#define	N_LOG		0
> -		"log",
> -#define	N_SIZE		1
> -		"size",
> -#define	N_VERSION	2
> -		"version",
> -#define	N_FTYPE		3
> -		"ftype",
> -	NULL,
> -	},
> -	.subopt_params = {
> -		{ .index = N_LOG,
> -		  .conflicts = { N_SIZE,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_MIN_REC_DIRSIZE,
> -		  .maxval = XFS_MAX_BLOCKSIZE_LOG,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = N_SIZE,
> -		  .conflicts = { N_LOG,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .is_power_2 = true,
> -		  .minval = 1 << XFS_MIN_REC_DIRSIZE,
> -		  .maxval = XFS_MAX_BLOCKSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +#define OPT_N	4
> +	{
> +		.index = OPT_N,
> +		.name = 'n',
> +		.subopts = {
> +	#define	N_LOG		0
> +			"log",
> +	#define	N_SIZE		1
> +			"size",
> +	#define	N_VERSION	2
> +			"version",
> +	#define	N_FTYPE		3
> +			"ftype",
> +		NULL,
>  		},
> -		{ .index = N_VERSION,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 2,
> -		  .maxval = 2,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +		.subopt_params = {
> +			{ .index = N_LOG,
> +			  .conflicts = { N_SIZE,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_MIN_REC_DIRSIZE,
> +			  .maxval = XFS_MAX_BLOCKSIZE_LOG,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = N_SIZE,
> +			  .conflicts = { N_LOG,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .is_power_2 = true,
> +			  .minval = 1 << XFS_MIN_REC_DIRSIZE,
> +			  .maxval = XFS_MAX_BLOCKSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = N_VERSION,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 2,
> +			  .maxval = 2,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = N_FTYPE,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
>  		},
> -		{ .index = N_FTYPE,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -	},
> -};
> -
> -struct opt_params ropts = {
> -	.name = 'r',
> -	.subopts = {
> -#define	R_EXTSIZE	0
> -		"extsize",
> -#define	R_SIZE		1
> -		"size",
> -#define	R_DEV		2
> -		"rtdev",
> -#define	R_FILE		3
> -		"file",
> -#define	R_NAME		4
> -		"name",
> -#define R_NOALIGN	5
> -		"noalign",
> -		NULL
>  	},
> -	.subopt_params = {
> -		{ .index = R_EXTSIZE,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .convert = true,
> -		  .minval = XFS_MIN_RTEXTSIZE,
> -		  .maxval = XFS_MAX_RTEXTSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +#define OPT_R	5
> +	{
> +		.index = OPT_R,
> +		.name = 'r',
> +		.subopts = {
> +	#define	R_EXTSIZE	0
> +			"extsize",
> +	#define	R_SIZE		1
> +			"size",
> +	#define	R_DEV		2
> +			"rtdev",
> +	#define	R_FILE		3
> +			"file",
> +	#define	R_NAME		4
> +			"name",
> +	#define R_NOALIGN	5
> +			"noalign",
> +			NULL
>  		},
> -		{ .index = R_SIZE,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .convert = true,
> -		  .minval = 0,
> -		  .maxval = LLONG_MAX,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = R_DEV,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = R_FILE,
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		  .conflicts = { LAST_CONFLICT },
> -		},
> -		{ .index = R_NAME,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = R_NOALIGN,
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		  .conflicts = { LAST_CONFLICT },
> +		.subopt_params = {
> +			{ .index = R_EXTSIZE,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .convert = true,
> +			  .minval = XFS_MIN_RTEXTSIZE,
> +			  .maxval = XFS_MAX_RTEXTSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = R_SIZE,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .convert = true,
> +			  .minval = 0,
> +			  .maxval = LLONG_MAX,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = R_DEV,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = R_FILE,
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			  .conflicts = { LAST_CONFLICT },
> +			},
> +			{ .index = R_NAME,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = R_NOALIGN,
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			  .conflicts = { LAST_CONFLICT },
> +			},
>  		},
>  	},
> -};
> -
> -struct opt_params sopts = {
> -	.name = 's',
> -	.subopts = {
> -#define	S_LOG		0
> -		"log",
> -#define	S_SECTLOG	1
> -		"sectlog",
> -#define	S_SIZE		2
> -		"size",
> -#define	S_SECTSIZE	3
> -		"sectsize",
> -		NULL
> -	},
> -	.subopt_params = {
> -		{ .index = S_LOG,
> -		  .conflicts = { S_SIZE,
> -				 S_SECTSIZE,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_MIN_SECTORSIZE_LOG,
> -		  .maxval = XFS_MAX_SECTORSIZE_LOG,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = S_SECTLOG,
> -		  .conflicts = { S_SIZE,
> -				 S_SECTSIZE,
> -				 LAST_CONFLICT },
> -		  .minval = XFS_MIN_SECTORSIZE_LOG,
> -		  .maxval = XFS_MAX_SECTORSIZE_LOG,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = S_SIZE,
> -		  .conflicts = { S_LOG,
> -				 S_SECTLOG,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .is_power_2 = true,
> -		  .minval = XFS_MIN_SECTORSIZE,
> -		  .maxval = XFS_MAX_SECTORSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +#define OPT_S	6
> +	{
> +		.index = OPT_S,
> +		.name = 's',
> +		.subopts = {
> +	#define	S_LOG		0
> +			"log",
> +	#define	S_SECTLOG	1
> +			"sectlog",
> +	#define	S_SIZE		2
> +			"size",
> +	#define	S_SECTSIZE	3
> +			"sectsize",
> +			NULL
>  		},
> -		{ .index = S_SECTSIZE,
> -		  .conflicts = { S_LOG,
> -				 S_SECTLOG,
> -				 LAST_CONFLICT },
> -		  .convert = true,
> -		  .is_power_2 = true,
> -		  .minval = XFS_MIN_SECTORSIZE,
> -		  .maxval = XFS_MAX_SECTORSIZE,
> -		  .flagval = SUBOPT_NEEDS_VAL,
> +		.subopt_params = {
> +			{ .index = S_LOG,
> +			  .conflicts = { S_SIZE,
> +					 S_SECTSIZE,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_MIN_SECTORSIZE_LOG,
> +			  .maxval = XFS_MAX_SECTORSIZE_LOG,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = S_SECTLOG,
> +			  .conflicts = { S_SIZE,
> +					 S_SECTSIZE,
> +					 LAST_CONFLICT },
> +			  .minval = XFS_MIN_SECTORSIZE_LOG,
> +			  .maxval = XFS_MAX_SECTORSIZE_LOG,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = S_SIZE,
> +			  .conflicts = { S_LOG,
> +					 S_SECTLOG,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .is_power_2 = true,
> +			  .minval = XFS_MIN_SECTORSIZE,
> +			  .maxval = XFS_MAX_SECTORSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = S_SECTSIZE,
> +			  .conflicts = { S_LOG,
> +					 S_SECTLOG,
> +					 LAST_CONFLICT },
> +			  .convert = true,
> +			  .is_power_2 = true,
> +			  .minval = XFS_MIN_SECTORSIZE,
> +			  .maxval = XFS_MAX_SECTORSIZE,
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
>  		},
>  	},
> -};
> -
> -struct opt_params mopts = {
> -	.name = 'm',
> -	.subopts = {
> -#define	M_CRC		0
> -		"crc",
> -#define M_FINOBT	1
> -		"finobt",
> -#define M_UUID		2
> -		"uuid",
> -#define M_RMAPBT	3
> -		"rmapbt",
> -#define M_REFLINK	4
> -		"reflink",
> -		NULL
> -	},
> -	.subopt_params = {
> -		{ .index = M_CRC,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = M_FINOBT,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> +#define OPT_M	7
> +	{
> +		.index = OPT_M,
> +		.name = 'm',
> +		.subopts = {
> +	#define	M_CRC		0
> +			"crc",
> +	#define M_FINOBT	1
> +			"finobt",
> +	#define M_UUID		2
> +			"uuid",
> +	#define M_RMAPBT	3
> +			"rmapbt",
> +	#define M_REFLINK	4
> +			"reflink",
> +			NULL
>  		},
> -		{ .index = M_UUID,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .flagval = SUBOPT_NEEDS_VAL,
> -		},
> -		{ .index = M_RMAPBT,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> -		},
> -		{ .index = M_REFLINK,
> -		  .conflicts = { LAST_CONFLICT },
> -		  .minval = 0,
> -		  .maxval = 1,
> -		  .flagval = 1,
> +		.subopt_params = {
> +			{ .index = M_CRC,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = M_FINOBT,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
> +			{ .index = M_UUID,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .flagval = SUBOPT_NEEDS_VAL,
> +			},
> +			{ .index = M_RMAPBT,
> +			.conflicts = { LAST_CONFLICT },
> +			.minval = 0,
> +			.maxval = 1,
> +			.flagval = 1,
> +			},
> +			{ .index = M_REFLINK,
> +			  .conflicts = { LAST_CONFLICT },
> +			  .minval = 0,
> +			  .maxval = 1,
> +			  .flagval = 1,
> +			},
>  		},
>  	},
>  };
> @@ -740,21 +754,22 @@ struct opt_params mopts = {
>   * the string to be saved.
>   */
>  static int
> -set_conf_raw(struct opt_params *opt, const int subopt, const char *value)
> +set_conf_raw(const int opt, const int subopt, const char *value)
>  {
> -	if (subopt < 0 || subopt >= MAX_SUBOPTS) {
> +	if (subopt < 0 || subopt >= MAX_SUBOPTS ||
> +	    opt < 0 || opt >= MAX_OPTS) {
>  		fprintf(stderr,
> -		"This is a bug: set_conf_raw called with invalid opt/subopt: %c/%d\n",
> -		opt->name, subopt);
> +		"This is a bug: set_conf_raw called with invalid opt/subopt: %d/%d\n",
> +		opt, subopt);
>  		return -EINVAL;
>  	}
>  	if (value == NULL) {
> -		if (opt->subopt_params[subopt].raw_input != NULL)
> -			free(opt->subopt_params[subopt].raw_input);
> -		opt->subopt_params[subopt].raw_input = NULL;
> +		if (opts[opt].subopt_params[subopt].raw_input != NULL)
> +			free(opts[opt].subopt_params[subopt].raw_input);
> +		opts[opt].subopt_params[subopt].raw_input = NULL;
>  	} else {
> -		opt->subopt_params[subopt].raw_input = strdup(value);
> -		if (opt->subopt_params[subopt].raw_input == NULL)
> +		opts[opt].subopt_params[subopt].raw_input = strdup(value);
> +		if (opts[opt].subopt_params[subopt].raw_input == NULL)
>  			return -ENOMEM;
>  	}
>  	return 0;
> @@ -765,19 +780,19 @@ set_conf_raw(struct opt_params *opt, const int subopt, const char *value)
>   * the string to be saved into the out pointer.
>   */
>  static int
> -get_conf_raw(const struct opt_params *opt, const int subopt, char **out)
> +get_conf_raw(const int opt, const int subopt, char **out)
>  {
> -	if (subopt < 0 || subopt >= MAX_SUBOPTS) {
> +	if (subopt < 0 || subopt >= MAX_SUBOPTS ||
> +	    opt < 0 || opt >= MAX_OPTS) {
>  		fprintf(stderr,
> -		"This is a bug: get_conf_raw called with invalid opt/subopt: %c/%d\n",
> -		opt->name, subopt);
> +		"This is a bug: get_conf_raw called with invalid opt/subopt: %d/%d\n",
> +		opt, subopt);
>  		return -EINVAL;
>  	}
> -	*out = strdup(opt->subopt_params[subopt].raw_input);
> +	*out = strdup(opts[opt].subopt_params[subopt].raw_input);
>  	if (*out == NULL)
>  		return -ENOMEM;
>  	return 0;
> -
>  }
>  
>  /*
> @@ -785,7 +800,7 @@ get_conf_raw(const struct opt_params *opt, const int subopt, char **out)
>   * If any error occurs, return NULL.
>   */
>  static char *
> -get_conf_raw_safe(const struct opt_params *opt, const int subopt)
> +get_conf_raw_safe(const int opt, const int subopt)
>  {
>  	char *str;
>  
> @@ -1396,7 +1411,7 @@ getnum(
>  	long long		c;
>  
>  	check_opt(opts, index, false);
> -	set_conf_raw(opts, index, str);
> +	set_conf_raw(opts->index, index, str);
>  	/* empty strings might just return a default value */
>  	if (!str || *str == '\0') {
>  		if (sp->flagval == SUBOPT_NEEDS_VAL)
> @@ -1611,17 +1626,19 @@ main(
>  		case 'b':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)bopts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_B].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
>  				case B_LOG:
> -					blocklog = getnum(value, &bopts, B_LOG);
> +					blocklog = getnum(value, &opts[OPT_B],
> +								B_LOG);

I was thinking that these should get moved to separate functions to
handle each option category (-b, -d, -m, etc.) to reduce the indenting
here, but that's a job for a subsequent patch (or maybe you do it later
already?)

--D

>  					blocksize = 1 << blocklog;
>  					blflag = 1;
>  					break;
>  				case B_SIZE:
> -					blocksize = getnum(value, &bopts,
> +					blocksize = getnum(value, &opts[OPT_B],
>  							   B_SIZE);
>  					blocklog = libxfs_highbit32(blocksize);
>  					bsflag = 1;
> @@ -1634,78 +1651,86 @@ main(
>  		case 'd':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)dopts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_D].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
>  				case D_AGCOUNT:
> -					agcount = getnum(value, &dopts,
> +					agcount = getnum(value, &opts[OPT_D],
>  							 D_AGCOUNT);
>  					daflag = 1;
>  					break;
>  				case D_AGSIZE:
> -					agsize = getnum(value, &dopts, D_AGSIZE);
> +					agsize = getnum(value, &opts[OPT_D],
> +								D_AGSIZE);
>  					dasize = 1;
>  					break;
>  				case D_FILE:
> -					xi.disfile = getnum(value, &dopts,
> -							    D_FILE);
> +					xi.disfile = getnum(value,
> +						&opts[OPT_D], D_FILE);
>  					break;
>  				case D_NAME:
> -					xi.dname = getstr(value, &dopts, D_NAME);
> +					xi.dname = getstr(value, &opts[OPT_D],
> +								D_NAME);
>  					break;
>  				case D_SIZE:
> -					dbytes = getnum(value, &dopts, D_SIZE);
> +					dbytes = getnum(value, &opts[OPT_D],
> +								D_SIZE);
>  					break;
>  				case D_SUNIT:
> -					dsunit = getnum(value, &dopts, D_SUNIT);
> +					dsunit = getnum(value, &opts[OPT_D],
> +								D_SUNIT);
>  					dsflag = 1;
>  					break;
>  				case D_SWIDTH:
> -					dswidth = getnum(value, &dopts,
> +					dswidth = getnum(value, &opts[OPT_D],
>  							 D_SWIDTH);
>  					dsflag = 1;
>  					break;
>  				case D_SU:
> -					dsu = getnum(value, &dopts, D_SU);
> +					dsu = getnum(value, &opts[OPT_D],
> +								D_SU);
>  					dsflag = 1;
>  					break;
>  				case D_SW:
> -					dsw = getnum(value, &dopts, D_SW);
> +					dsw = getnum(value, &opts[OPT_D],
> +								D_SW);
>  					dsflag = 1;
>  					break;
>  				case D_NOALIGN:
> -					nodsflag = getnum(value, &dopts,
> +					nodsflag = getnum(value, &opts[OPT_D],
>  								D_NOALIGN);
>  					break;
>  				case D_SECTLOG:
> -					sectorlog = getnum(value, &dopts,
> +					sectorlog = getnum(value, &opts[OPT_D],
>  							   D_SECTLOG);
>  					sectorsize = 1 << sectorlog;
>  					slflag = 1;
>  					break;
>  				case D_SECTSIZE:
> -					sectorsize = getnum(value, &dopts,
> -							    D_SECTSIZE);
> +					sectorsize = getnum(value,
> +						&opts[OPT_D], D_SECTSIZE);
>  					sectorlog =
>  						libxfs_highbit32(sectorsize);
>  					ssflag = 1;
>  					break;
>  				case D_RTINHERIT:
> -					c = getnum(value, &dopts, D_RTINHERIT);
> +					c = getnum(value, &opts[OPT_D],
> +								D_RTINHERIT);
>  					if (c)
>  						fsx.fsx_xflags |=
>  							XFS_DIFLAG_RTINHERIT;
>  					break;
>  				case D_PROJINHERIT:
> -					fsx.fsx_projid = getnum(value, &dopts,
> -								D_PROJINHERIT);
> +					fsx.fsx_projid = getnum(value,
> +						&opts[OPT_D], D_PROJINHERIT);
>  					fsx.fsx_xflags |=
>  						XFS_DIFLAG_PROJINHERIT;
>  					break;
>  				case D_EXTSZINHERIT:
> -					fsx.fsx_extsize = getnum(value, &dopts,
> -								 D_EXTSZINHERIT);
> +					fsx.fsx_extsize = getnum(value,
> +						&opts[OPT_D], D_EXTSZINHERIT);
>  					fsx.fsx_xflags |=
>  						XFS_DIFLAG_EXTSZINHERIT;
>  					break;
> @@ -1717,46 +1742,51 @@ main(
>  		case 'i':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)iopts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_I].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
>  				case I_ALIGN:
>  					sb_feat.inode_align = getnum(value,
> -								&iopts, I_ALIGN);
> +						&opts[OPT_I], I_ALIGN);
>  					break;
>  				case I_LOG:
> -					inodelog = getnum(value, &iopts, I_LOG);
> +					inodelog = getnum(value, &opts[OPT_I],
> +								I_LOG);
>  					isize = 1 << inodelog;
>  					ilflag = 1;
>  					break;
>  				case I_MAXPCT:
> -					imaxpct = getnum(value, &iopts,
> +					imaxpct = getnum(value, &opts[OPT_I],
>  							 I_MAXPCT);
>  					imflag = 1;
>  					break;
>  				case I_PERBLOCK:
> -					inopblock = getnum(value, &iopts,
> +					inopblock = getnum(value, &opts[OPT_I],
>  							   I_PERBLOCK);
>  					ipflag = 1;
>  					break;
>  				case I_SIZE:
> -					isize = getnum(value, &iopts, I_SIZE);
> +					isize = getnum(value, &opts[OPT_I],
> +								I_SIZE);
>  					inodelog = libxfs_highbit32(isize);
>  					isflag = 1;
>  					break;
>  				case I_ATTR:
>  					sb_feat.attr_version =
> -						getnum(value, &iopts, I_ATTR);
> +						getnum(value, &opts[OPT_I],
> +								I_ATTR);
>  					break;
>  				case I_PROJID32BIT:
>  					sb_feat.projid16bit =
> -						!getnum(value, &iopts,
> +						!getnum(value, &opts[OPT_I],
>  							I_PROJID32BIT);
>  					break;
>  				case I_SPINODES:
>  					sb_feat.spinodes = getnum(value,
> -							&iopts, I_SPINODES);
> +								&opts[OPT_I],
> +								I_SPINODES);
>  					break;
>  				default:
>  					unknown('i', value);
> @@ -1766,63 +1796,70 @@ main(
>  		case 'l':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)lopts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_L].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
>  				case L_AGNUM:
> -					logagno = getnum(value, &lopts, L_AGNUM);
> +					logagno = getnum(value, &opts[OPT_L],
> +								L_AGNUM);
>  					laflag = 1;
>  					break;
>  				case L_FILE:
> -					xi.lisfile = getnum(value, &lopts,
> -							    L_FILE);
> +					xi.lisfile = getnum(value,
> +						&opts[OPT_L], L_FILE);
>  					break;
>  				case L_INTERNAL:
> -					loginternal = getnum(value, &lopts,
> -							     L_INTERNAL);
> +					loginternal = getnum(value,
> +						&opts[OPT_L], L_INTERNAL);
>  					liflag = 1;
>  					break;
>  				case L_SU:
> -					lsu = getnum(value, &lopts, L_SU);
> +					lsu = getnum(value, &opts[OPT_L],
> +								L_SU);
>  					lsuflag = 1;
>  					break;
>  				case L_SUNIT:
> -					lsunit = getnum(value, &lopts, L_SUNIT);
> +					lsunit = getnum(value, &opts[OPT_L],
> +								L_SUNIT);
>  					lsunitflag = 1;
>  					break;
>  				case L_NAME:
>  				case L_DEV:
> -					logfile = getstr(value, &lopts, L_NAME);
> +					logfile = getstr(value, &opts[OPT_L],
> +								L_NAME);
>  					xi.logname = logfile;
>  					ldflag = 1;
>  					loginternal = 0;
>  					break;
>  				case L_VERSION:
>  					sb_feat.log_version =
> -						getnum(value, &lopts, L_VERSION);
> +						getnum(value, &opts[OPT_L],
> +								L_VERSION);
>  					lvflag = 1;
>  					break;
>  				case L_SIZE:
> -					logbytes = getnum(value, &lopts, L_SIZE);
> +					logbytes = getnum(value,
> +						&opts[OPT_L], L_SIZE);
>  					break;
>  				case L_SECTLOG:
> -					lsectorlog = getnum(value, &lopts,
> -							    L_SECTLOG);
> +					lsectorlog = getnum(value,
> +						&opts[OPT_L], L_SECTLOG);
>  					lsectorsize = 1 << lsectorlog;
>  					lslflag = 1;
>  					break;
>  				case L_SECTSIZE:
> -					lsectorsize = getnum(value, &lopts,
> -							     L_SECTSIZE);
> +					lsectorsize = getnum(value,
> +						&opts[OPT_L], L_SECTSIZE);
>  					lsectorlog =
>  						libxfs_highbit32(lsectorsize);
>  					lssflag = 1;
>  					break;
>  				case L_LAZYSBCNTR:
>  					sb_feat.lazy_sb_counters =
> -							getnum(value, &lopts,
> -							       L_LAZYSBCNTR);
> +						getnum(value, &opts[OPT_L],
> +							L_LAZYSBCNTR);
>  					break;
>  				default:
>  					unknown('l', value);
> @@ -1837,19 +1874,21 @@ main(
>  		case 'm':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)mopts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_M].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
>  				case M_CRC:
>  					sb_feat.crcs_enabled =
> -						getnum(value, &mopts, M_CRC);
> +						getnum(value, &opts[OPT_M],
> +								M_CRC);
>  					if (sb_feat.crcs_enabled)
>  						sb_feat.dirftype = true;
>  					break;
>  				case M_FINOBT:
>  					sb_feat.finobt = getnum(
> -						value, &mopts, M_FINOBT);
> +						value, &opts[OPT_M], M_FINOBT);
>  					break;
>  				case M_UUID:
>  					if (!value || *value == '\0')
> @@ -1859,11 +1898,12 @@ main(
>  					break;
>  				case M_RMAPBT:
>  					sb_feat.rmapbt = getnum(
> -						value, &mopts, M_RMAPBT);
> +						value, &opts[OPT_M], M_RMAPBT);
>  					break;
>  				case M_REFLINK:
> -					sb_feat.reflink = getnum(
> -						value, &mopts, M_REFLINK);
> +					sb_feat.reflink =
> +						getnum(value, &opts[OPT_M],
> +							M_REFLINK);
>  					break;
>  				default:
>  					unknown('m', value);
> @@ -1873,38 +1913,41 @@ main(
>  		case 'n':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)nopts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_N].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
>  				case N_LOG:
> -					dirblocklog = getnum(value, &nopts,
> -							     N_LOG);
> +					dirblocklog = getnum(value,
> +						&opts[OPT_N], N_LOG);
>  					dirblocksize = 1 << dirblocklog;
>  					nlflag = 1;
>  					break;
>  				case N_SIZE:
> -					dirblocksize = getnum(value, &nopts,
> -							      N_SIZE);
> +					dirblocksize = getnum(value,
> +						&opts[OPT_N], N_SIZE);
>  					dirblocklog =
>  						libxfs_highbit32(dirblocksize);
>  					nsflag = 1;
>  					break;
>  				case N_VERSION:
> -					value = getstr(value, &nopts, N_VERSION);
> +					value = getstr(value, &opts[OPT_N],
> +								N_VERSION);
>  					if (!strcasecmp(value, "ci")) {
>  						/* ASCII CI mode */
>  						sb_feat.nci = true;
>  					} else {
>  						sb_feat.dir_version =
> -							getnum(value, &nopts,
> +							getnum(value,
> +							       &opts[OPT_N],
>  							       N_VERSION);
>  					}
>  					nvflag = 1;
>  					break;
>  				case N_FTYPE:
> -					sb_feat.dirftype = getnum(value, &nopts,
> -								  N_FTYPE);
> +					sb_feat.dirftype = getnum(value,
> +						&opts[OPT_N], N_FTYPE);
>  					break;
>  				default:
>  					unknown('n', value);
> @@ -1928,27 +1971,30 @@ main(
>  		case 'r':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)ropts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_R].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
>  				case R_EXTSIZE:
> -					rtextbytes = getnum(value, &ropts, R_EXTSIZE);
> +					rtextbytes = getnum(value,
> +						&opts[OPT_R], R_EXTSIZE);
>  					break;
>  				case R_FILE:
> -					xi.risfile = getnum(value, &ropts,
> -							    R_FILE);
> +					xi.risfile = getnum(value,
> +						&opts[OPT_R], R_FILE);
>  					break;
>  				case R_NAME:
>  				case R_DEV:
> -					xi.rtname = getstr(value, &ropts,
> +					xi.rtname = getstr(value, &opts[OPT_R],
>  							   R_NAME);
>  					break;
>  				case R_SIZE:
> -					rtbytes = getnum(value, &ropts, R_SIZE);
> +					rtbytes = getnum(value, &opts[OPT_R],
> +								R_SIZE);
>  					break;
>  				case R_NOALIGN:
> -					norsflag = getnum(value, &ropts,
> +					norsflag = getnum(value, &opts[OPT_R],
>  								R_NOALIGN);
>  					break;
>  				default:
> @@ -1959,7 +2005,8 @@ main(
>  		case 's':
>  			p = optarg;
>  			while (*p != '\0') {
> -				char	**subopts = (char **)sopts.subopts;
> +				char	**subopts =
> +						(char **)opts[OPT_S].subopts;
>  				char	*value;
>  
>  				switch (getsubopt(&p, subopts, &value)) {
> @@ -1967,8 +2014,9 @@ main(
>  				case S_SECTLOG:
>  					if (lssflag)
>  						conflict('s', subopts,
> -							 S_SECTSIZE, S_SECTLOG);
> -					sectorlog = getnum(value, &sopts,
> +							 S_SECTSIZE,
> +							 S_SECTLOG);
> +					sectorlog = getnum(value, &opts[OPT_S],
>  							   S_SECTLOG);
>  					lsectorlog = sectorlog;
>  					sectorsize = 1 << sectorlog;
> @@ -1978,10 +2026,11 @@ main(
>  				case S_SIZE:
>  				case S_SECTSIZE:
>  					if (lslflag)
> -						conflict('s', subopts, S_SECTLOG,
> +						conflict('s', subopts,
> +							 S_SECTLOG,
>  							 S_SECTSIZE);
> -					sectorsize = getnum(value, &sopts,
> -							    S_SECTSIZE);
> +					sectorsize = getnum(value,
> +						&opts[OPT_S], S_SECTSIZE);
>  					lsectorsize = sectorsize;
>  					sectorlog =
>  						libxfs_highbit32(sectorsize);
> @@ -2004,7 +2053,8 @@ main(
>  		fprintf(stderr, _("extra arguments\n"));
>  		usage();
>  	} else if (argc - optind == 1) {
> -		dfile = xi.volname = getstr(argv[optind], &dopts, D_NAME);
> +		dfile = xi.volname = getstr(argv[optind],
> +					&opts[OPT_D], D_NAME);
>  	} else
>  		dfile = xi.dname;
>  
> @@ -2183,7 +2233,8 @@ _("32 bit Project IDs always enabled on CRC enabled filesytems\n"));
>  		 * then issue an error.
>  		 * The same is also for sparse inodes.
>  		 */
> -		if (sb_feat.finobt && mopts.subopt_params[M_FINOBT].seen) {
> +		if (sb_feat.finobt &&
> +		    opts[OPT_M].subopt_params[M_FINOBT].seen) {
>  			fprintf(stderr,
>  _("finobt not supported without CRC support\n"));
>  			usage();
> @@ -2432,7 +2483,7 @@ _("rmapbt not supported with realtime devices\n"));
>  		fprintf(stderr,
>  			_("size %s specified for data subvolume is too large, "
>  			"maximum is %lld blocks\n"),
> -			get_conf_raw_safe(&dopts, D_SIZE),
> +			get_conf_raw_safe(OPT_D, D_SIZE),
>  			(long long)DTOBT(xi.dsize));
>  		usage();
>  	} else if (!dbytes && xi.dsize > 0)
> @@ -2481,7 +2532,7 @@ reported by the device (%u).\n"),
>  		fprintf(stderr,
>  			_("size %s specified for rt subvolume is too large, "
>  			"maximum is %lld blocks\n"),
> -			get_conf_raw_safe(&ropts, R_SIZE),
> +			get_conf_raw_safe(OPT_R, R_SIZE),
>  			(long long)DTOBT(xi.rtsize));
>  		usage();
>  	} else if (!rtbytes && xi.rtsize > 0)
> @@ -2697,7 +2748,7 @@ an AG size that is one stripe unit smaller, for example %llu.\n"),
>  	if (logbytes && xi.logBBsize > 0 && logblocks > DTOBT(xi.logBBsize)) {
>  		fprintf(stderr,
>  _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"),
> -			get_conf_raw_safe(&lopts, L_SIZE),
> +			get_conf_raw_safe(OPT_L, L_SIZE),
>  			(long long)DTOBT(xi.logBBsize));
>  		usage();
>  	} else if (!logbytes && xi.logBBsize > 0) {
> -- 
> 2.13.3
> 
> --
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