[GFS2] Remove gfs2_inode_attr_in

This function wasn't really doing the right thing. There was no need
to update the inode size at this point and the updating of the
i_blocks field has now been moved to the places where di_blocks is
updated. A result of this patch and some those preceeding it is that
unlocking a glock is now a much more efficient process, since there
is no longer any requirement to copy data from the gfs2 inode into
the vfs inode at this point.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/dir.c

@@ -901,6 +901,7 @@ static int dir_make_exhash(struct inode *inode)
 
 	dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
 	dip->i_di.di_blocks++;
+	gfs2_set_inode_blocks(&dip->i_inode);
 	dip->i_di.di_flags |= GFS2_DIF_EXHASH;
 
 	for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
@@ -1038,6 +1039,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
 	error = gfs2_meta_inode_buffer(dip, &dibh);
 	if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) {
 		dip->i_di.di_blocks++;
+		gfs2_set_inode_blocks(&dip->i_inode);
 		gfs2_dinode_out(dip, dibh->b_data);
 		brelse(dibh);
 	}
@@ -1516,6 +1518,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
 		return error;
 	gfs2_trans_add_bh(ip->i_gl, bh, 1);
 	ip->i_di.di_blocks++;
+	gfs2_set_inode_blocks(&ip->i_inode);
 	gfs2_dinode_out(ip, bh->b_data);
 	brelse(bh);
 	return 0;
@@ -1860,6 +1863,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
 		if (!dip->i_di.di_blocks)
 			gfs2_consist_inode(dip);
 		dip->i_di.di_blocks--;
+		gfs2_set_inode_blocks(&dip->i_inode);
 	}
 
 	error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size);