fs/adfs: dir: rename bh_fplus to bhs

Rename bh_fplus to bhs in preparation to make some of the directory
handling code sharable between implementations.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/adfs/adfs.h

@@ -93,9 +93,7 @@ struct adfs_dir {
 
 	int			nr_buffers;
 	struct buffer_head	*bh[4];
-
-	/* big directories need allocated buffers */
-	struct buffer_head	**bh_fplus;
+	struct buffer_head	**bhs;
 
 	unsigned int		pos;
 	__u32			parent_id;

fs/adfs/dir_fplus.c

@@ -20,7 +20,7 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 	dir->nr_buffers = 0;
 
 	/* start off using fixed bh set - only alloc for big dirs */
-	dir->bh_fplus = &dir->bh[0];
+	dir->bhs = &dir->bh[0];
 
 	block = __adfs_block_map(sb, id, 0);
 	if (!block) {
@@ -28,12 +28,12 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 		goto out;
 	}
 
-	dir->bh_fplus[0] = sb_bread(sb, block);
-	if (!dir->bh_fplus[0])
+	dir->bhs[0] = sb_bread(sb, block);
+	if (!dir->bhs[0])
 		goto out;
 	dir->nr_buffers += 1;
 
-	h = (struct adfs_bigdirheader *)dir->bh_fplus[0]->b_data;
+	h = (struct adfs_bigdirheader *)dir->bhs[0]->b_data;
 	size = le32_to_cpu(h->bigdirsize);
 	if (size != sz) {
 		adfs_msg(sb, KERN_WARNING,
@@ -51,19 +51,19 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 	size >>= sb->s_blocksize_bits;
 	if (size > ARRAY_SIZE(dir->bh)) {
 		/* this directory is too big for fixed bh set, must allocate */
-		struct buffer_head **bh_fplus =
+		struct buffer_head **bhs =
 			kcalloc(size, sizeof(struct buffer_head *),
 				GFP_KERNEL);
-		if (!bh_fplus) {
+		if (!bhs) {
 			adfs_msg(sb, KERN_ERR,
 				 "not enough memory for dir object %X (%d blocks)",
 				 id, size);
 			ret = -ENOMEM;
 			goto out;
 		}
-		dir->bh_fplus = bh_fplus;
+		dir->bhs = bhs;
 		/* copy over the pointer to the block that we've already read */
-		dir->bh_fplus[0] = dir->bh[0];
+		dir->bhs[0] = dir->bh[0];
 	}
 
 	for (blk = 1; blk < size; blk++) {
@@ -73,8 +73,8 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 			goto out;
 		}
 
-		dir->bh_fplus[blk] = sb_bread(sb, block);
-		if (!dir->bh_fplus[blk]) {
+		dir->bhs[blk] = sb_bread(sb, block);
+		if (!dir->bhs[blk]) {
 			adfs_error(sb,	"dir object %x failed read for offset %d, mapped block %lX",
 				   id, blk, block);
 			goto out;
@@ -84,7 +84,7 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 	}
 
 	t = (struct adfs_bigdirtail *)
-		(dir->bh_fplus[size - 1]->b_data + (sb->s_blocksize - 8));
+		(dir->bhs[size - 1]->b_data + (sb->s_blocksize - 8));
 
 	if (t->bigdirendname != cpu_to_le32(BIGDIRENDNAME) ||
 	    t->bigdirendmasseq != h->startmasseq ||
@@ -98,14 +98,14 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 	return 0;
 
 out:
-	if (dir->bh_fplus) {
+	if (dir->bhs) {
 		for (i = 0; i < dir->nr_buffers; i++)
-			brelse(dir->bh_fplus[i]);
+			brelse(dir->bhs[i]);
 
-		if (&dir->bh[0] != dir->bh_fplus)
-			kfree(dir->bh_fplus);
+		if (&dir->bh[0] != dir->bhs)
+			kfree(dir->bhs);
 
-		dir->bh_fplus = NULL;
+		dir->bhs = NULL;
 	}
 
 	dir->nr_buffers = 0;
@@ -117,7 +117,7 @@ static int
 adfs_fplus_setpos(struct adfs_dir *dir, unsigned int fpos)
 {
 	struct adfs_bigdirheader *h =
-		(struct adfs_bigdirheader *) dir->bh_fplus[0]->b_data;
+		(struct adfs_bigdirheader *) dir->bhs[0]->b_data;
 	int ret = -ENOENT;
 
 	if (fpos <= le32_to_cpu(h->bigdirentries)) {
@@ -140,18 +140,18 @@ dir_memcpy(struct adfs_dir *dir, unsigned int offset, void *to, int len)
 	partial = sb->s_blocksize - offset;
 
 	if (partial >= len)
-		memcpy(to, dir->bh_fplus[buffer]->b_data + offset, len);
+		memcpy(to, dir->bhs[buffer]->b_data + offset, len);
 	else {
 		char *c = (char *)to;
 
 		remainder = len - partial;
 
 		memcpy(c,
-			dir->bh_fplus[buffer]->b_data + offset,
+			dir->bhs[buffer]->b_data + offset,
 			partial);
 
 		memcpy(c + partial,
-			dir->bh_fplus[buffer + 1]->b_data,
+			dir->bhs[buffer + 1]->b_data,
 			remainder);
 	}
 }
@@ -160,7 +160,7 @@ static int
 adfs_fplus_getnext(struct adfs_dir *dir, struct object_info *obj)
 {
 	struct adfs_bigdirheader *h =
-		(struct adfs_bigdirheader *) dir->bh_fplus[0]->b_data;
+		(struct adfs_bigdirheader *) dir->bhs[0]->b_data;
 	struct adfs_bigdirentry bde;
 	unsigned int offset;
 	int ret = -ENOENT;
@@ -202,7 +202,7 @@ adfs_fplus_sync(struct adfs_dir *dir)
 	int i;
 
 	for (i = dir->nr_buffers - 1; i >= 0; i--) {
-		struct buffer_head *bh = dir->bh_fplus[i];
+		struct buffer_head *bh = dir->bhs[i];
 		sync_dirty_buffer(bh);
 		if (buffer_req(bh) && !buffer_uptodate(bh))
 			err = -EIO;
@@ -216,14 +216,14 @@ adfs_fplus_free(struct adfs_dir *dir)
 {
 	int i;
 
-	if (dir->bh_fplus) {
+	if (dir->bhs) {
 		for (i = 0; i < dir->nr_buffers; i++)
-			brelse(dir->bh_fplus[i]);
+			brelse(dir->bhs[i]);
 
-		if (&dir->bh[0] != dir->bh_fplus)
-			kfree(dir->bh_fplus);
+		if (&dir->bh[0] != dir->bhs)
+			kfree(dir->bhs);
 
-		dir->bh_fplus = NULL;
+		dir->bhs = NULL;
 	}
 
 	dir->nr_buffers = 0;