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Commit 3d693c6e authored by Nathan Scott's avatar Nathan Scott
Browse files

[XFS] endianess annotations for XFS_DIR2_DATA_ENTRY_TAG_P 



SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25494a

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarNathan Scott <nathans@sgi.com>
parent 3c1f9c15

fs/xfs/xfs_dir2_block.c

+13 −13
Original line number Diff line number Diff line
@@ -81,7 +81,7 @@ xfs_dir2_block_addname( 
	xfs_mount_t		*mp;		/* filesystem mount point */

	int			needlog;	/* need to log header */

	int			needscan;	/* need to rescan freespace */

	xfs_dir2_data_off_t	*tagp;		/* pointer to tag value */

	__be16			*tagp;		/* pointer to tag value */

	xfs_trans_t		*tp;		/* transaction structure */



	xfs_dir2_trace_args("block_addname", args);
@@ -120,11 +120,11 @@ xfs_dir2_block_addname( 
		/*

		 * Tag just before the first leaf entry.

		 */

		tagp = (xfs_dir2_data_off_t *)blp - 1;

		tagp = (__be16 *)blp - 1;

		/*

		 * Data object just before the first leaf entry.

		 */

		enddup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));

		enddup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp));

		/*

		 * If it's not free then can't do this add without cleaning up:

		 * the space before the first leaf entry needs to be free so it
@@ -183,11 +183,11 @@ xfs_dir2_block_addname( 
		/*

		 * Tag just before the first leaf entry.

		 */

		tagp = (xfs_dir2_data_off_t *)blp - 1;

		tagp = (__be16 *)blp - 1;

		/*

		 * Data object just before the first leaf entry.

		 */

		dup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));

		dup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp));

		/*

		 * If it's not free then the data will go where the

		 * leaf data starts now, if it works at all.
@@ -404,7 +404,7 @@ xfs_dir2_block_addname( 
	dep->namelen = args->namelen;

	memcpy(dep->name, args->name, args->namelen);

	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);

	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));

	*tagp = cpu_to_be16((char *)dep - (char *)block);

	/*

	 * Clean up the bestfree array and log the header, tail, and entry.

	 */
@@ -896,7 +896,7 @@ xfs_dir2_leaf_to_block( 
	int			needscan;	/* need to scan for bestfree */

	xfs_dir2_sf_hdr_t	sfh;		/* shortform header */

	int			size;		/* bytes used */

	xfs_dir2_data_off_t	*tagp;		/* end of entry (tag) */

	__be16			*tagp;		/* end of entry (tag) */

	int			to;		/* block/leaf to index */

	xfs_trans_t		*tp;		/* transaction pointer */
@@ -944,8 +944,8 @@ xfs_dir2_leaf_to_block( 
	/*

	 * Look at the last data entry.

	 */

	tagp = (xfs_dir2_data_off_t *)((char *)block + mp->m_dirblksize) - 1;

	dup = (xfs_dir2_data_unused_t *)((char *)block + INT_GET(*tagp, ARCH_CONVERT));

	tagp = (__be16 *)((char *)block + mp->m_dirblksize) - 1;

	dup = (xfs_dir2_data_unused_t *)((char *)block + be16_to_cpu(*tagp));

	/*

	 * If it's not free or is too short we can't do it.

	 */
@@ -1044,7 +1044,7 @@ xfs_dir2_sf_to_block( 
	int			offset;		/* target block offset */

	xfs_dir2_sf_entry_t	*sfep;		/* sf entry pointer */

	xfs_dir2_sf_t		*sfp;		/* shortform structure */

	xfs_dir2_data_off_t	*tagp;		/* end of data entry */

	__be16			*tagp;		/* end of data entry */

	xfs_trans_t		*tp;		/* transaction pointer */



	xfs_dir2_trace_args("sf_to_block", args);
@@ -1134,7 +1134,7 @@ xfs_dir2_sf_to_block( 
	dep->namelen = 1;

	dep->name[0] = '.';

	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);

	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));

	*tagp = cpu_to_be16((char *)dep - (char *)block);

	xfs_dir2_data_log_entry(tp, bp, dep);

	blp[0].hashval = cpu_to_be32(xfs_dir_hash_dot);

	blp[0].address = cpu_to_be32(XFS_DIR2_BYTE_TO_DATAPTR(mp,
@@ -1148,7 +1148,7 @@ xfs_dir2_sf_to_block( 
	dep->namelen = 2;

	dep->name[0] = dep->name[1] = '.';

	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);

	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));

	*tagp = cpu_to_be16((char *)dep - (char *)block);

	xfs_dir2_data_log_entry(tp, bp, dep);

	blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot);

	blp[1].address = cpu_to_be32(XFS_DIR2_BYTE_TO_DATAPTR(mp,
@@ -1198,7 +1198,7 @@ xfs_dir2_sf_to_block( 
		dep->namelen = sfep->namelen;

		memcpy(dep->name, sfep->name, dep->namelen);

		tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);

		INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)block));

		*tagp = cpu_to_be16((char *)dep - (char *)block);

		xfs_dir2_data_log_entry(tp, bp, dep);

		blp[2 + i].hashval = cpu_to_be32(xfs_da_hashname(

					(char *)sfep->name, sfep->namelen));

fs/xfs/xfs_dir2_data.c

+5 −5
Original line number Diff line number Diff line
@@ -134,7 +134,7 @@ xfs_dir2_data_check( 
		dep = (xfs_dir2_data_entry_t *)p;

		ASSERT(dep->namelen != 0);

		ASSERT(xfs_dir_ino_validate(mp, INT_GET(dep->inumber, ARCH_CONVERT)) == 0);

		ASSERT(INT_GET(*XFS_DIR2_DATA_ENTRY_TAG_P(dep), ARCH_CONVERT) ==

		ASSERT(be16_to_cpu(*XFS_DIR2_DATA_ENTRY_TAG_P(dep)) ==

		       (char *)dep - (char *)d);

		count++;

		lastfree = 0;
@@ -376,7 +376,7 @@ xfs_dir2_data_freescan( 
		else {

			dep = (xfs_dir2_data_entry_t *)p;

			ASSERT((char *)dep - (char *)d ==

			       INT_GET(*XFS_DIR2_DATA_ENTRY_TAG_P(dep), ARCH_CONVERT));

			       be16_to_cpu(*XFS_DIR2_DATA_ENTRY_TAG_P(dep)));

			p += XFS_DIR2_DATA_ENTSIZE(dep->namelen);

		}

	}
@@ -549,10 +549,10 @@ xfs_dir2_data_make_free( 
	 * the previous entry and see if it's free.

	 */

	if (offset > sizeof(d->hdr)) {

		xfs_dir2_data_off_t	*tagp;	/* tag just before us */

		__be16			*tagp;	/* tag just before us */



		tagp = (xfs_dir2_data_off_t *)((char *)d + offset) - 1;

		prevdup = (xfs_dir2_data_unused_t *)((char *)d + INT_GET(*tagp, ARCH_CONVERT));

		tagp = (__be16 *)((char *)d + offset) - 1;

		prevdup = (xfs_dir2_data_unused_t *)((char *)d + be16_to_cpu(*tagp));

		if (be16_to_cpu(prevdup->freetag) != XFS_DIR2_DATA_FREE_TAG)

			prevdup = NULL;

	} else

fs/xfs/xfs_dir2_data.h

+3 −4
Original line number Diff line number Diff line
@@ -134,12 +134,11 @@ static inline int xfs_dir2_data_entsize(int n) 
 * Pointer to an entry's tag word.

 */

#define	XFS_DIR2_DATA_ENTRY_TAG_P(dep)	xfs_dir2_data_entry_tag_p(dep)

static inline xfs_dir2_data_off_t *

static inline __be16 *

xfs_dir2_data_entry_tag_p(xfs_dir2_data_entry_t *dep)

{

	return (xfs_dir2_data_off_t *) \

		 ((char *)(dep) + XFS_DIR2_DATA_ENTSIZE((dep)->namelen) - \

		  (uint)sizeof(xfs_dir2_data_off_t));

	return (__be16 *)((char *)dep +

		XFS_DIR2_DATA_ENTSIZE(dep->namelen) - sizeof(__be16));

}



/*

fs/xfs/xfs_dir2_leaf.c

+3 −3
Original line number Diff line number Diff line
@@ -187,7 +187,7 @@ xfs_dir2_leaf_addname( 
	int			needbytes;	/* leaf block bytes needed */

	int			needlog;	/* need to log data header */

	int			needscan;	/* need to rescan data free */

	xfs_dir2_data_off_t	*tagp;		/* end of data entry */

	__be16			*tagp;		/* end of data entry */

	xfs_trans_t		*tp;		/* transaction pointer */

	xfs_dir2_db_t		use_block;	/* data block number */
@@ -411,7 +411,7 @@ xfs_dir2_leaf_addname( 
	dep->namelen = args->namelen;

	memcpy(dep->name, args->name, dep->namelen);

	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);

	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)data));

	*tagp = cpu_to_be16((char *)dep - (char *)data);

	/*

	 * Need to scan fix up the bestfree table.

	 */
@@ -533,7 +533,7 @@ xfs_dir2_leaf_addname( 
	 */

	lep->hashval = cpu_to_be32(args->hashval);

	lep->address = cpu_to_be32(XFS_DIR2_DB_OFF_TO_DATAPTR(mp, use_block,

				INT_GET(*tagp, ARCH_CONVERT)));

				be16_to_cpu(*tagp)));

	/*

	 * Log the leaf fields and give up the buffers.

	 */

fs/xfs/xfs_dir2_node.c

+3 −3
Original line number Diff line number Diff line
@@ -1379,7 +1379,7 @@ xfs_dir2_node_addname_int( 
	xfs_mount_t		*mp;		/* filesystem mount point */

	int			needlog;	/* need to log data header */

	int			needscan;	/* need to rescan data frees */

	xfs_dir2_data_off_t	*tagp;		/* data entry tag pointer */

	__be16			*tagp;		/* data entry tag pointer */

	xfs_trans_t		*tp;		/* transaction pointer */



	dp = args->dp;
@@ -1699,7 +1699,7 @@ xfs_dir2_node_addname_int( 
	dep->namelen = args->namelen;

	memcpy(dep->name, args->name, dep->namelen);

	tagp = XFS_DIR2_DATA_ENTRY_TAG_P(dep);

	INT_SET(*tagp, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dep - (char *)data));

	*tagp = cpu_to_be16((char *)dep - (char *)data);

	xfs_dir2_data_log_entry(tp, dbp, dep);

	/*

	 * Rescan the block for bestfree if needed.
@@ -1732,7 +1732,7 @@ xfs_dir2_node_addname_int( 
	 * Return the data block and offset in args, then drop the data block.

	 */

	args->blkno = (xfs_dablk_t)dbno;

	args->index = INT_GET(*tagp, ARCH_CONVERT);

	args->index = be16_to_cpu(*tagp);

	xfs_da_buf_done(dbp);

	return 0;

}