[XFS] endianess annotations for xfs_dir2_data_hdr structure.

SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25484a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:26:52 +11:00
parent 9cea236492
commit 70e73f5975
6 changed files with 99 additions and 93 deletions
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -70,11 +70,11 @@ xfs_dir2_data_check(

 	mp = dp->i_mount;
 	d = bp->data;
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 	bf = d->hdr.bestfree;
 	p = (char *)d->u;
-	if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+	if (be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC) {
 		btp = XFS_DIR2_BLOCK_TAIL_P(mp, (xfs_dir2_block_t *)d);
 		lep = XFS_DIR2_BLOCK_LEAF_P(btp);
 		endp = (char *)lep;
@@ -96,8 +96,8 @@ xfs_dir2_data_check(
 		ASSERT(!bf[2].offset);
 		freeseen |= 1 << 2;
 	}
-	ASSERT(INT_GET(bf[0].length, ARCH_CONVERT) >= INT_GET(bf[1].length, ARCH_CONVERT));
-	ASSERT(INT_GET(bf[1].length, ARCH_CONVERT) >= INT_GET(bf[2].length, ARCH_CONVERT));
+	ASSERT(be16_to_cpu(bf[0].length) >= be16_to_cpu(bf[1].length));
+	ASSERT(be16_to_cpu(bf[1].length) >= be16_to_cpu(bf[2].length));
 	/*
 	 * Loop over the data/unused entries.
 	 */
@@ -117,8 +117,10 @@ xfs_dir2_data_check(
 				i = (int)(dfp - bf);
 				ASSERT((freeseen & (1 << i)) == 0);
 				freeseen |= 1 << i;
-			} else
-				ASSERT(INT_GET(dup->length, ARCH_CONVERT) <= INT_GET(bf[2].length, ARCH_CONVERT));
+			} else {
+				ASSERT(INT_GET(dup->length, ARCH_CONVERT) <=
+				       be16_to_cpu(bf[2].length));
+			}
 			p += INT_GET(dup->length, ARCH_CONVERT);
 			lastfree = 1;
 			continue;
@@ -136,7 +138,7 @@ xfs_dir2_data_check(
 		       (char *)dep - (char *)d);
 		count++;
 		lastfree = 0;
-		if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+		if (be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC) {
 			addr = XFS_DIR2_DB_OFF_TO_DATAPTR(mp, mp->m_dirdatablk,
 				(xfs_dir2_data_aoff_t)
 				((char *)dep - (char *)d));
@@ -154,7 +156,7 @@ xfs_dir2_data_check(
 	 * Need to have seen all the entries and all the bestfree slots.
 	 */
 	ASSERT(freeseen == 7);
-	if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+	if (be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC) {
 		for (i = stale = 0; i < INT_GET(btp->count, ARCH_CONVERT); i++) {
 			if (INT_GET(lep[i].address, ARCH_CONVERT) == XFS_DIR2_NULL_DATAPTR)
 				stale++;
@@ -190,8 +192,8 @@ xfs_dir2_data_freefind(
 	 * Check order, non-overlapping entries, and if we find the
 	 * one we're looking for it has to be exact.
 	 */
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 	for (dfp = &d->hdr.bestfree[0], seenzero = matched = 0;
 	     dfp < &d->hdr.bestfree[XFS_DIR2_DATA_FD_COUNT];
 	     dfp++) {
@@ -201,23 +203,24 @@ xfs_dir2_data_freefind(
 			continue;
 		}
 		ASSERT(seenzero == 0);
-		if (INT_GET(dfp->offset, ARCH_CONVERT) == off) {
+		if (be16_to_cpu(dfp->offset) == off) {
 			matched = 1;
-			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(dup->length, ARCH_CONVERT));
-		} else if (off < INT_GET(dfp->offset, ARCH_CONVERT))
-			ASSERT(off + INT_GET(dup->length, ARCH_CONVERT) <= INT_GET(dfp->offset, ARCH_CONVERT));
+			ASSERT(be16_to_cpu(dfp->length) == INT_GET(dup->length, ARCH_CONVERT));
+		} else if (off < be16_to_cpu(dfp->offset))
+			ASSERT(off + INT_GET(dup->length, ARCH_CONVERT) <= be16_to_cpu(dfp->offset));
 		else
-			ASSERT(INT_GET(dfp->offset, ARCH_CONVERT) + INT_GET(dfp->length, ARCH_CONVERT) <= off);
-		ASSERT(matched || INT_GET(dfp->length, ARCH_CONVERT) >= INT_GET(dup->length, ARCH_CONVERT));
+			ASSERT(be16_to_cpu(dfp->offset) + be16_to_cpu(dfp->length) <= off);
+		ASSERT(matched || be16_to_cpu(dfp->length) >= INT_GET(dup->length, ARCH_CONVERT));
 		if (dfp > &d->hdr.bestfree[0])
-			ASSERT(INT_GET(dfp[-1].length, ARCH_CONVERT) >= INT_GET(dfp[0].length, ARCH_CONVERT));
+			ASSERT(be16_to_cpu(dfp[-1].length) >= be16_to_cpu(dfp[0].length));
 	}
 #endif
 	/*
 	 * If this is smaller than the smallest bestfree entry,
 	 * it can't be there since they're sorted.
 	 */
-	if (INT_GET(dup->length, ARCH_CONVERT) < INT_GET(d->hdr.bestfree[XFS_DIR2_DATA_FD_COUNT - 1].length, ARCH_CONVERT))
+	if (INT_GET(dup->length, ARCH_CONVERT) <
+	    be16_to_cpu(d->hdr.bestfree[XFS_DIR2_DATA_FD_COUNT - 1].length))
 		return NULL;
 	/*
 	 * Look at the three bestfree entries for our guy.
@@ -227,7 +230,7 @@ xfs_dir2_data_freefind(
 	     dfp++) {
 		if (!dfp->offset)
 			return NULL;
-		if (INT_GET(dfp->offset, ARCH_CONVERT) == off)
+		if (be16_to_cpu(dfp->offset) == off)
 			return dfp;
 	}
 	/*
@@ -249,29 +252,29 @@ xfs_dir2_data_freeinsert(
 	xfs_dir2_data_free_t	new;		/* new bestfree entry */

 #ifdef __KERNEL__
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 #endif
 	dfp = d->hdr.bestfree;
-	INT_COPY(new.length, dup->length, ARCH_CONVERT);
-	INT_SET(new.offset, ARCH_CONVERT, (xfs_dir2_data_off_t)((char *)dup - (char *)d));
+	new.length = dup->length;
+	new.offset = cpu_to_be16((char *)dup - (char *)d);
 	/*
 	 * Insert at position 0, 1, or 2; or not at all.
 	 */
-	if (INT_GET(new.length, ARCH_CONVERT) > INT_GET(dfp[0].length, ARCH_CONVERT)) {
+	if (be16_to_cpu(new.length) > be16_to_cpu(dfp[0].length)) {
 		dfp[2] = dfp[1];
 		dfp[1] = dfp[0];
 		dfp[0] = new;
 		*loghead = 1;
 		return &dfp[0];
 	}
-	if (INT_GET(new.length, ARCH_CONVERT) > INT_GET(dfp[1].length, ARCH_CONVERT)) {
+	if (be16_to_cpu(new.length) > be16_to_cpu(dfp[1].length)) {
 		dfp[2] = dfp[1];
 		dfp[1] = new;
 		*loghead = 1;
 		return &dfp[1];
 	}
-	if (INT_GET(new.length, ARCH_CONVERT) > INT_GET(dfp[2].length, ARCH_CONVERT)) {
+	if (be16_to_cpu(new.length) > be16_to_cpu(dfp[2].length)) {
 		dfp[2] = new;
 		*loghead = 1;
 		return &dfp[2];
@@ -289,8 +292,8 @@ xfs_dir2_data_freeremove(
 	int			*loghead)	/* out: log data header */
 {
 #ifdef __KERNEL__
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 #endif
 	/*
 	 * It's the first entry, slide the next 2 up.
@@ -334,8 +337,8 @@ xfs_dir2_data_freescan(
 	char			*p;		/* current entry pointer */

 #ifdef __KERNEL__
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 #endif
 	/*
 	 * Start by clearing the table.
@@ -348,7 +351,7 @@ xfs_dir2_data_freescan(
 	p = (char *)d->u;
 	if (aendp)
 		endp = aendp;
-	else if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC) {
+	else if (be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC) {
 		btp = XFS_DIR2_BLOCK_TAIL_P(mp, (xfs_dir2_block_t *)d);
 		endp = (char *)XFS_DIR2_BLOCK_LEAF_P(btp);
 	} else
@@ -415,8 +418,8 @@ xfs_dir2_data_init(
 	 * Initialize the header.
 	 */
 	d = bp->data;
-	INT_SET(d->hdr.magic, ARCH_CONVERT, XFS_DIR2_DATA_MAGIC);
-	INT_SET(d->hdr.bestfree[0].offset, ARCH_CONVERT, (xfs_dir2_data_off_t)sizeof(d->hdr));
+	d->hdr.magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC);
+	d->hdr.bestfree[0].offset = cpu_to_be16(sizeof(d->hdr));
 	for (i = 1; i < XFS_DIR2_DATA_FD_COUNT; i++) {
 		d->hdr.bestfree[i].length = 0;
 		d->hdr.bestfree[i].offset = 0;
@@ -428,7 +431,7 @@ xfs_dir2_data_init(
 	INT_SET(dup->freetag, ARCH_CONVERT, XFS_DIR2_DATA_FREE_TAG);

 	t=mp->m_dirblksize - (uint)sizeof(d->hdr);
-	INT_SET(d->hdr.bestfree[0].length, ARCH_CONVERT, t);
+	d->hdr.bestfree[0].length = cpu_to_be16(t);
 	INT_SET(dup->length, ARCH_CONVERT, t);
 	INT_SET(*XFS_DIR2_DATA_UNUSED_TAG_P(dup), ARCH_CONVERT,
 		(xfs_dir2_data_off_t)((char *)dup - (char *)d));
@@ -453,8 +456,8 @@ xfs_dir2_data_log_entry(
 	xfs_dir2_data_t		*d;		/* data block pointer */

 	d = bp->data;
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 	xfs_da_log_buf(tp, bp, (uint)((char *)dep - (char *)d),
 		(uint)((char *)(XFS_DIR2_DATA_ENTRY_TAG_P(dep) + 1) -
 		       (char *)d - 1));
@@ -471,8 +474,8 @@ xfs_dir2_data_log_header(
 	xfs_dir2_data_t		*d;		/* data block pointer */

 	d = bp->data;
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 	xfs_da_log_buf(tp, bp, (uint)((char *)&d->hdr - (char *)d),
 		(uint)(sizeof(d->hdr) - 1));
 }
@@ -489,8 +492,8 @@ xfs_dir2_data_log_unused(
 	xfs_dir2_data_t		*d;		/* data block pointer */

 	d = bp->data;
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 	/*
 	 * Log the first part of the unused entry.
 	 */
@@ -533,12 +536,12 @@ xfs_dir2_data_make_free(
 	/*
 	 * Figure out where the end of the data area is.
 	 */
-	if (INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC)
+	if (be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC)
 		endptr = (char *)d + mp->m_dirblksize;
 	else {
 		xfs_dir2_block_tail_t	*btp;	/* block tail */

-		ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+		ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 		btp = XFS_DIR2_BLOCK_TAIL_P(mp, (xfs_dir2_block_t *)d);
 		endptr = (char *)XFS_DIR2_BLOCK_LEAF_P(btp);
 	}
@@ -586,7 +589,7 @@ xfs_dir2_data_make_free(
 		 * since the third bestfree is there, there might be more
 		 * entries.
 		 */
-		needscan = d->hdr.bestfree[2].length;
+		needscan = (d->hdr.bestfree[2].length != 0);
 		/*
 		 * Fix up the new big freespace.
 		 */
@@ -614,7 +617,7 @@ xfs_dir2_data_make_free(
 			 */
 			dfp = xfs_dir2_data_freeinsert(d, prevdup, needlogp);
 			ASSERT(dfp == &d->hdr.bestfree[0]);
-			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(prevdup->length, ARCH_CONVERT));
+			ASSERT(be16_to_cpu(dfp->length) == INT_GET(prevdup->length, ARCH_CONVERT));
 			ASSERT(!dfp[1].length);
 			ASSERT(!dfp[2].length);
 		}
@@ -640,8 +643,10 @@ xfs_dir2_data_make_free(
 		/*
 		 * Otherwise we need a scan if the new entry is big enough.
 		 */
-		else
-			needscan = INT_GET(prevdup->length, ARCH_CONVERT) > INT_GET(d->hdr.bestfree[2].length, ARCH_CONVERT);
+		else {
+			needscan = INT_GET(prevdup->length, ARCH_CONVERT) >
+				   be16_to_cpu(d->hdr.bestfree[2].length);
+		}
 	}
 	/*
 	 * The following entry is free, merge with it.
@@ -666,8 +671,10 @@ xfs_dir2_data_make_free(
 		/*
 		 * Otherwise we need a scan if the new entry is big enough.
 		 */
-		else
-			needscan = INT_GET(newdup->length, ARCH_CONVERT) > INT_GET(d->hdr.bestfree[2].length, ARCH_CONVERT);
+		else {
+			needscan = INT_GET(newdup->length, ARCH_CONVERT) >
+				   be16_to_cpu(d->hdr.bestfree[2].length);
+		}
 	}
 	/*
 	 * Neither neighbor is free.  Make a new entry.
@@ -707,8 +714,8 @@ xfs_dir2_data_use_free(
 	int			oldlen;		/* old unused entry's length */

 	d = bp->data;
-	ASSERT(INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_DATA_MAGIC ||
-	       INT_GET(d->hdr.magic, ARCH_CONVERT) == XFS_DIR2_BLOCK_MAGIC);
+	ASSERT(be32_to_cpu(d->hdr.magic) == XFS_DIR2_DATA_MAGIC ||
+	       be32_to_cpu(d->hdr.magic) == XFS_DIR2_BLOCK_MAGIC);
 	ASSERT(INT_GET(dup->freetag, ARCH_CONVERT) == XFS_DIR2_DATA_FREE_TAG);
 	ASSERT(offset >= (char *)dup - (char *)d);
 	ASSERT(offset + len <= (char *)dup + INT_GET(dup->length, ARCH_CONVERT) - (char *)d);
@@ -718,7 +725,7 @@ xfs_dir2_data_use_free(
 	 */
 	dfp = xfs_dir2_data_freefind(d, dup);
 	oldlen = INT_GET(dup->length, ARCH_CONVERT);
-	ASSERT(dfp || oldlen <= INT_GET(d->hdr.bestfree[2].length, ARCH_CONVERT));
+	ASSERT(dfp || oldlen <= be16_to_cpu(d->hdr.bestfree[2].length));
 	/*
 	 * Check for alignment with front and back of the entry.
 	 */
@@ -732,7 +739,7 @@ xfs_dir2_data_use_free(
 	 */
 	if (matchfront && matchback) {
 		if (dfp) {
-			needscan = d->hdr.bestfree[2].offset;
+			needscan = (d->hdr.bestfree[2].offset != 0);
 			if (!needscan)
 				xfs_dir2_data_freeremove(d, dfp, needlogp);
 		}
@@ -755,8 +762,8 @@ xfs_dir2_data_use_free(
 			xfs_dir2_data_freeremove(d, dfp, needlogp);
 			dfp = xfs_dir2_data_freeinsert(d, newdup, needlogp);
 			ASSERT(dfp != NULL);
-			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(newdup->length, ARCH_CONVERT));
-			ASSERT(INT_GET(dfp->offset, ARCH_CONVERT) == (char *)newdup - (char *)d);
+			ASSERT(be16_to_cpu(dfp->length) == INT_GET(newdup->length, ARCH_CONVERT));
+			ASSERT(be16_to_cpu(dfp->offset) == (char *)newdup - (char *)d);
 			/*
 			 * If we got inserted at the last slot,
 			 * that means we don't know if there was a better
@@ -783,8 +790,8 @@ xfs_dir2_data_use_free(
 			xfs_dir2_data_freeremove(d, dfp, needlogp);
 			dfp = xfs_dir2_data_freeinsert(d, newdup, needlogp);
 			ASSERT(dfp != NULL);
-			ASSERT(INT_GET(dfp->length, ARCH_CONVERT) == INT_GET(newdup->length, ARCH_CONVERT));
-			ASSERT(INT_GET(dfp->offset, ARCH_CONVERT) == (char *)newdup - (char *)d);
+			ASSERT(be16_to_cpu(dfp->length) == INT_GET(newdup->length, ARCH_CONVERT));
+			ASSERT(be16_to_cpu(dfp->offset) == (char *)newdup - (char *)d);
 			/*
 			 * If we got inserted at the last slot,
 			 * that means we don't know if there was a better
@@ -819,7 +826,7 @@ xfs_dir2_data_use_free(
 		 * the 2 new will work.
 		 */
 		if (dfp) {
-			needscan = d->hdr.bestfree[2].length;
+			needscan = (d->hdr.bestfree[2].length != 0);
 			if (!needscan) {
 				xfs_dir2_data_freeremove(d, dfp, needlogp);
 				(void)xfs_dir2_data_freeinsert(d, newdup,