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Commit 013fb339 authored by Jens Axboe's avatar Jens Axboe Committed by Jens Axboe
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SG: Make sg_init_one() use general table init functions 



Don't open code sg_init_one(), make it reuse sg_init_table().

Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 54866f03

include/linux/scatterlist.h

+18 −22
Original line number Original line Diff line number Diff line
@@ -205,28 +205,6 @@ static inline void __sg_mark_end(struct scatterlist *sg) 
	sg->page_link |= 0x02;

	sg->page_link |= 0x02;

}

}





/**

 * sg_init_one - Initialize a single entry sg list

 * @sg:		 SG entry

 * @buf:	 Virtual address for IO

 * @buflen:	 IO length

 *

 * Notes:

 *   This should not be used on a single entry that is part of a larger

 *   table. Use sg_init_table() for that.

 *

 **/

static inline void sg_init_one(struct scatterlist *sg, const void *buf,

			       unsigned int buflen)

{

	memset(sg, 0, sizeof(*sg));

#ifdef CONFIG_DEBUG_SG

	sg->sg_magic = SG_MAGIC;

#endif

	sg_mark_end(sg, 1);

	sg_set_buf(sg, buf, buflen);

}



/**

/**

 * sg_init_table - Initialize SG table

 * sg_init_table - Initialize SG table

 * @sgl:	   The SG table

 * @sgl:	   The SG table
@@ -250,6 +228,24 @@ static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents) 
#endif

#endif

}

}





/**

 * sg_init_one - Initialize a single entry sg list

 * @sg:		 SG entry

 * @buf:	 Virtual address for IO

 * @buflen:	 IO length

 *

 * Notes:

 *   This should not be used on a single entry that is part of a larger

 *   table. Use sg_init_table() for that.

 *

 **/

static inline void sg_init_one(struct scatterlist *sg, const void *buf,

			       unsigned int buflen)

{

	sg_init_table(sg, 1);

	sg_set_buf(sg, buf, buflen);

}



/**

/**

 * sg_phys - Return physical address of an sg entry

 * sg_phys - Return physical address of an sg entry

 * @sg:	     SG entry

 * @sg:	     SG entry