[XFS] split ondisk vs incore versions of xfs_bmbt_rec_t

currently xfs_bmbt_rec_t is used both for ondisk extents as well as
host-endian ones. This patch adds a new xfs_bmbt_rec_host_t for the native
endian ones and cleans up the fallout. There have been various endianess
issues in the tracing / debug printf code that are fixed by this patch.

SGI-PV: 968563
SGI-Modid: xfs-linux-melb:xfs-kern:29318a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 29 insertions, 46 deletions

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index aa19e1fee11f..bbef39432be2 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -248,7 +248,7 @@ xfs_bmap_local_to_extents(
  * Else, *lastxp will be set to the index of the found
  * entry; *gotp will contain the entry.
  */
-STATIC xfs_bmbt_rec_t *			/* pointer to found extent entry */
+STATIC xfs_bmbt_rec_host_t *		/* pointer to found extent entry */
 xfs_bmap_search_extents(
 	xfs_inode_t	*ip,		/* incore inode pointer */
 	xfs_fileoff_t	bno,		/* block number searched for */
@@ -273,21 +273,6 @@ xfs_bmap_isaeof(
 
 #ifdef XFS_BMAP_TRACE
 /*
- * Add a bmap trace buffer entry.  Base routine for the others.
- */
-STATIC void
-xfs_bmap_trace_addentry(
-	int		opcode,		/* operation */
-	const char	*fname,		/* function name */
-	char		*desc,		/* operation description */
-	xfs_inode_t	*ip,		/* incore inode pointer */
-	xfs_extnum_t	idx,		/* index of entry(ies) */
-	xfs_extnum_t	cnt,		/* count of entries, 1 or 2 */
-	xfs_bmbt_rec_t	*r1,		/* first record */
-	xfs_bmbt_rec_t	*r2,		/* second record or null */
-	int		whichfork);	/* data or attr fork */
-
-/*
  * Add bmap trace entry prior to a call to xfs_iext_remove.
  */
 STATIC void
@@ -714,7 +699,7 @@ xfs_bmap_add_extent_delay_real(
 {
 	xfs_btree_cur_t		*cur;	/* btree cursor */
 	int			diff;	/* temp value */
-	xfs_bmbt_rec_t		*ep;	/* extent entry for idx */
+	xfs_bmbt_rec_host_t	*ep;	/* extent entry for idx */
 	int			error;	/* error return value */
 	int			i;	/* temp state */
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
@@ -1270,7 +1255,7 @@ xfs_bmap_add_extent_unwritten_real(
 	xfs_extdelta_t		*delta) /* Change made to incore extents */
 {
 	xfs_btree_cur_t		*cur;	/* btree cursor */
-	xfs_bmbt_rec_t		*ep;	/* extent entry for idx */
+	xfs_bmbt_rec_host_t	*ep;	/* extent entry for idx */
 	int			error;	/* error return value */
 	int			i;	/* temp state */
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
@@ -1823,7 +1808,7 @@ xfs_bmap_add_extent_hole_delay(
 	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			rsvd)		/* OK to allocate reserved blocks */
 {
-	xfs_bmbt_rec_t		*ep;	/* extent record for idx */
+	xfs_bmbt_rec_host_t	*ep;	/* extent record for idx */
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
 	xfs_bmbt_irec_t		left;	/* left neighbor extent entry */
 	xfs_filblks_t		newlen=0;	/* new indirect size */
@@ -2012,7 +1997,7 @@ xfs_bmap_add_extent_hole_real(
 	xfs_extdelta_t		*delta, /* Change made to incore extents */
 	int			whichfork) /* data or attr fork */
 {
-	xfs_bmbt_rec_t		*ep;	/* pointer to extent entry ins. point */
+	xfs_bmbt_rec_host_t	*ep;	/* pointer to extent entry ins. point */
 	int			error;	/* error return value */
 	int			i;	/* temp state */
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
@@ -3070,7 +3055,7 @@ xfs_bmap_del_extent(
 	xfs_fileoff_t		del_endoff;	/* first offset past del */
 	int			delay;	/* current block is delayed allocated */
 	int			do_fx;	/* free extent at end of routine */
-	xfs_bmbt_rec_t		*ep;	/* current extent entry pointer */
+	xfs_bmbt_rec_host_t	*ep;	/* current extent entry pointer */
 	int			error;	/* error return value */
 	int			flags;	/* inode logging flags */
 	xfs_bmbt_irec_t		got;	/* current extent entry */
@@ -3418,7 +3403,7 @@ xfs_bmap_extents_to_btree(
 	xfs_bmbt_rec_t		*arp;		/* child record pointer */
 	xfs_bmbt_block_t	*block;		/* btree root block */
 	xfs_btree_cur_t		*cur;		/* bmap btree cursor */
-	xfs_bmbt_rec_t		*ep;		/* extent record pointer */
+	xfs_bmbt_rec_host_t	*ep;		/* extent record pointer */
 	int			error;		/* error return value */
 	xfs_extnum_t		i, cnt;		/* extent record index */
 	xfs_ifork_t		*ifp;		/* inode fork pointer */
@@ -3590,7 +3575,7 @@ xfs_bmap_local_to_extents(
 	if (ifp->if_bytes) {
 		xfs_alloc_arg_t	args;	/* allocation arguments */
 		xfs_buf_t	*bp;	/* buffer for extent block */
-		xfs_bmbt_rec_t	*ep;	/* extent record pointer */
+		xfs_bmbt_rec_host_t *ep;/* extent record pointer */
 
 		args.tp = tp;
 		args.mp = ip->i_mount;
@@ -3655,7 +3640,7 @@ done:
  * entry (null if none).  Else, *lastxp will be set to the index
  * of the found entry; *gotp will contain the entry.
  */
-xfs_bmbt_rec_t *			/* pointer to found extent entry */
+xfs_bmbt_rec_host_t *			/* pointer to found extent entry */
 xfs_bmap_search_multi_extents(
 	xfs_ifork_t	*ifp,		/* inode fork pointer */
 	xfs_fileoff_t	bno,		/* block number searched for */
@@ -3664,7 +3649,7 @@ xfs_bmap_search_multi_extents(
 	xfs_bmbt_irec_t	*gotp,		/* out: extent entry found */
 	xfs_bmbt_irec_t	*prevp)		/* out: previous extent entry found */
 {
-	xfs_bmbt_rec_t	*ep;		/* extent record pointer */
+	xfs_bmbt_rec_host_t *ep;		/* extent record pointer */
 	xfs_extnum_t	lastx;		/* last extent index */
 
 	/*
@@ -3706,7 +3691,7 @@ xfs_bmap_search_multi_extents(
  * Else, *lastxp will be set to the index of the found
  * entry; *gotp will contain the entry.
  */
-STATIC xfs_bmbt_rec_t *                 /* pointer to found extent entry */
+STATIC xfs_bmbt_rec_host_t *                 /* pointer to found extent entry */
 xfs_bmap_search_extents(
 	xfs_inode_t     *ip,            /* incore inode pointer */
 	xfs_fileoff_t   bno,            /* block number searched for */
@@ -3717,7 +3702,7 @@ xfs_bmap_search_extents(
 	xfs_bmbt_irec_t *prevp)         /* out: previous extent entry found */
 {
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
-	xfs_bmbt_rec_t  *ep;            /* extent record pointer */
+	xfs_bmbt_rec_host_t  *ep;            /* extent record pointer */
 
 	XFS_STATS_INC(xs_look_exlist);
 	ifp = XFS_IFORK_PTR(ip, fork);
@@ -3757,11 +3742,11 @@ xfs_bmap_trace_addentry(
 	xfs_inode_t	*ip,		/* incore inode pointer */
 	xfs_extnum_t	idx,		/* index of entry(ies) */
 	xfs_extnum_t	cnt,		/* count of entries, 1 or 2 */
-	xfs_bmbt_rec_t	*r1,		/* first record */
-	xfs_bmbt_rec_t	*r2,		/* second record or null */
+	xfs_bmbt_rec_host_t *r1,	/* first record */
+	xfs_bmbt_rec_host_t *r2,	/* second record or null */
 	int		whichfork)	/* data or attr fork */
 {
-	xfs_bmbt_rec_t	tr2;
+	xfs_bmbt_rec_host_t tr2;
 
 	ASSERT(cnt == 1 || cnt == 2);
 	ASSERT(r1 != NULL);
@@ -3842,8 +3827,8 @@ xfs_bmap_trace_insert(
 	xfs_bmbt_irec_t	*r2,		/* inserted record 2 or null */
 	int		whichfork)	/* data or attr fork */
 {
-	xfs_bmbt_rec_t	tr1;		/* compressed record 1 */
-	xfs_bmbt_rec_t	tr2;		/* compressed record 2 if needed */
+	xfs_bmbt_rec_host_t tr1;	/* compressed record 1 */
+	xfs_bmbt_rec_host_t tr2;	/* compressed record 2 if needed */
 
 	xfs_bmbt_set_all(&tr1, r1);
 	if (cnt == 2) {
@@ -4316,7 +4301,6 @@ xfs_bmap_first_unused(
 	xfs_fileoff_t	*first_unused,		/* unused block */
 	int		whichfork)		/* data or attr fork */
 {
-	xfs_bmbt_rec_t	*ep;			/* pointer to an extent entry */
 	int		error;			/* error return value */
 	int		idx;			/* extent record index */
 	xfs_ifork_t	*ifp;			/* inode fork pointer */
@@ -4340,7 +4324,7 @@ xfs_bmap_first_unused(
 	lowest = *first_unused;
 	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
 	for (idx = 0, lastaddr = 0, max = lowest; idx < nextents; idx++) {
-		ep = xfs_iext_get_ext(ifp, idx);
+		xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, idx);
 		off = xfs_bmbt_get_startoff(ep);
 		/*
 		 * See if the hole before this extent will work.
@@ -4371,7 +4355,7 @@ xfs_bmap_last_before(
 {
 	xfs_fileoff_t	bno;			/* input file offset */
 	int		eof;			/* hit end of file */
-	xfs_bmbt_rec_t	*ep;			/* pointer to last extent */
+	xfs_bmbt_rec_host_t *ep;		/* pointer to last extent */
 	int		error;			/* error return value */
 	xfs_bmbt_irec_t	got;			/* current extent value */
 	xfs_ifork_t	*ifp;			/* inode fork pointer */
@@ -4417,7 +4401,7 @@ xfs_bmap_last_offset(
 	xfs_fileoff_t	*last_block,		/* last block */
 	int		whichfork)		/* data or attr fork */
 {
-	xfs_bmbt_rec_t	*ep;			/* pointer to last extent */
+	xfs_bmbt_rec_host_t *ep;		/* pointer to last extent */
 	int		error;			/* error return value */
 	xfs_ifork_t	*ifp;			/* inode fork pointer */
 	xfs_extnum_t	nextents;		/* number of extent entries */
@@ -4454,7 +4438,7 @@ xfs_bmap_one_block(
 	xfs_inode_t	*ip,		/* incore inode */
 	int		whichfork)	/* data or attr fork */
 {
-	xfs_bmbt_rec_t	*ep;		/* ptr to fork's extent */
+	xfs_bmbt_rec_host_t *ep;	/* ptr to fork's extent */
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
 	int		rval;		/* return value */
 	xfs_bmbt_irec_t	s;		/* internal version of extent */
@@ -4549,7 +4533,7 @@ xfs_bmap_read_extents(
 	 * Loop over all leaf nodes.  Copy information to the extent records.
 	 */
 	for (;;) {
-		xfs_bmbt_rec_t	*frp, *trp;
+		xfs_bmbt_rec_t	*frp;
 		xfs_fsblock_t	nextbno;
 		xfs_extnum_t	num_recs;
 		xfs_extnum_t	start;
@@ -4581,7 +4565,7 @@ xfs_bmap_read_extents(
 		frp = XFS_BTREE_REC_ADDR(xfs_bmbt, block, 1);
 		start = i;
 		for (j = 0; j < num_recs; j++, i++, frp++) {
-			trp = xfs_iext_get_ext(ifp, i);
+			xfs_bmbt_rec_host_t *trp = xfs_iext_get_ext(ifp, i);
 			trp->l0 = INT_GET(frp->l0, ARCH_CONVERT);
 			trp->l1 = INT_GET(frp->l1, ARCH_CONVERT);
 		}
@@ -4631,7 +4615,7 @@ xfs_bmap_trace_exlist(
 	xfs_extnum_t	cnt,		/* count of entries in the list */
 	int		whichfork)	/* data or attr fork */
 {
-	xfs_bmbt_rec_t	*ep;		/* current extent record */
+	xfs_bmbt_rec_host_t *ep;	/* current extent record */
 	xfs_extnum_t	idx;		/* extent record index */
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
 	xfs_bmbt_irec_t	s;		/* file extent record */
@@ -4727,7 +4711,7 @@ xfs_bmapi(
 	xfs_btree_cur_t	*cur;		/* bmap btree cursor */
 	xfs_fileoff_t	end;		/* end of mapped file region */
 	int		eof;		/* we've hit the end of extents */
-	xfs_bmbt_rec_t	*ep;		/* extent record pointer */
+	xfs_bmbt_rec_host_t *ep;	/* extent record pointer */
 	int		error;		/* error return */
 	xfs_bmbt_irec_t	got;		/* current file extent record */
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
@@ -5378,7 +5362,7 @@ xfs_bunmapi(
 	xfs_btree_cur_t		*cur;		/* bmap btree cursor */
 	xfs_bmbt_irec_t		del;		/* extent being deleted */
 	int			eof;		/* is deleting at eof */
-	xfs_bmbt_rec_t		*ep;		/* extent record pointer */
+	xfs_bmbt_rec_host_t	*ep;		/* extent record pointer */
 	int			error;		/* error return value */
 	xfs_extnum_t		extno;		/* extent number in list */
 	xfs_bmbt_irec_t		got;		/* current extent record */
@@ -6004,7 +5988,7 @@ xfs_bmap_isaeof(
 {
 	int		error;		/* error return value */
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
-	xfs_bmbt_rec_t	*lastrec;	/* extent record pointer */
+	xfs_bmbt_rec_host_t *lastrec;	/* extent record pointer */
 	xfs_extnum_t	nextents;	/* number of file extents */
 	xfs_bmbt_irec_t	s;		/* expanded extent record */
 
@@ -6048,7 +6032,7 @@ xfs_bmap_eof(
 	xfs_fsblock_t	blockcount;	/* extent block count */
 	int		error;		/* error return value */
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
-	xfs_bmbt_rec_t	*lastrec;	/* extent record pointer */
+	xfs_bmbt_rec_host_t *lastrec;	/* extent record pointer */
 	xfs_extnum_t	nextents;	/* number of file extents */
 	xfs_fileoff_t	startoff;	/* extent starting file offset */
 
@@ -6495,10 +6479,9 @@ xfs_bmap_count_leaves(
 	int			*count)
 {
 	int		b;
-	xfs_bmbt_rec_t	*frp;
 
 	for (b = 0; b < numrecs; b++) {
-		frp = xfs_iext_get_ext(ifp, idx + b);
+		xfs_bmbt_rec_host_t *frp = xfs_iext_get_ext(ifp, idx + b);
 		*count += xfs_bmbt_get_blockcount(frp);
 	}
 	return 0;