GFS2: Move i_size from gfs2_dinode_host and rename it to i_disksize

This patch moved the i_size field from the gfs2_dinode_host and
following the ext3 convention renames it i_disksize.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 830cf48..d8d8232 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -128,8 +128,8 @@
 
 	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
 	memcpy(dibh->b_data + offset + sizeof(struct gfs2_dinode), buf, size);
-	if (ip->i_di.di_size < offset + size)
-		ip->i_di.di_size = offset + size;
+	if (ip->i_disksize < offset + size)
+		ip->i_disksize = offset + size;
 	ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 	gfs2_dinode_out(ip, dibh->b_data);
 
@@ -226,8 +226,8 @@
 	if (error)
 		return error;
 
-	if (ip->i_di.di_size < offset + copied)
-		ip->i_di.di_size = offset + copied;
+	if (ip->i_disksize < offset + copied)
+		ip->i_disksize = offset + copied;
 	ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 
 	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
@@ -277,11 +277,11 @@
 	int copied = 0;
 	int error = 0;
 
-	if (offset >= ip->i_di.di_size)
+	if (offset >= ip->i_disksize)
 		return 0;
 
-	if (offset + size > ip->i_di.di_size)
-		size = ip->i_di.di_size - offset;
+	if (offset + size > ip->i_disksize)
+		size = ip->i_disksize - offset;
 
 	if (!size)
 		return 0;
@@ -760,7 +760,7 @@
 		unsigned hsize = 1 << ip->i_depth;
 		unsigned index;
 		u64 ln;
-		if (hsize * sizeof(u64) != ip->i_di.di_size) {
+		if (hsize * sizeof(u64) != ip->i_disksize) {
 			gfs2_consist_inode(ip);
 			return ERR_PTR(-EIO);
 		}
@@ -905,7 +905,7 @@
 	for (x = sdp->sd_hash_ptrs; x--; lp++)
 		*lp = cpu_to_be64(bn);
 
-	dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
+	dip->i_disksize = sdp->sd_sb.sb_bsize / 2;
 	gfs2_add_inode_blocks(&dip->i_inode, 1);
 	dip->i_di.di_flags |= GFS2_DIF_EXHASH;
 
@@ -1082,7 +1082,7 @@
 	int error = 0;
 
 	hsize = 1 << dip->i_depth;
-	if (hsize * sizeof(u64) != dip->i_di.di_size) {
+	if (hsize * sizeof(u64) != dip->i_disksize) {
 		gfs2_consist_inode(dip);
 		return -EIO;
 	}
@@ -1091,7 +1091,7 @@
 
 	buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS | __GFP_NOFAIL);
 
-	for (block = dip->i_di.di_size >> sdp->sd_hash_bsize_shift; block--;) {
+	for (block = dip->i_disksize >> sdp->sd_hash_bsize_shift; block--;) {
 		error = gfs2_dir_read_data(dip, (char *)buf,
 					    block * sdp->sd_hash_bsize,
 					    sdp->sd_hash_bsize, 1);
@@ -1370,7 +1370,7 @@
 	unsigned depth = 0;
 
 	hsize = 1 << dip->i_depth;
-	if (hsize * sizeof(u64) != dip->i_di.di_size) {
+	if (hsize * sizeof(u64) != dip->i_disksize) {
 		gfs2_consist_inode(dip);
 		return -EIO;
 	}
@@ -1784,7 +1784,7 @@
 	int error = 0;
 
 	hsize = 1 << dip->i_depth;
-	if (hsize * sizeof(u64) != dip->i_di.di_size) {
+	if (hsize * sizeof(u64) != dip->i_disksize) {
 		gfs2_consist_inode(dip);
 		return -EIO;
 	}