GFS2: remove vestigial al_alloced

This patch removes the vestigial variable al_alloced from
the gfs2_alloc structure. This is another baby step toward
multi-block reservations.

My next planned step is to decouple the quota variables
from the gfs2_alloc structure so we can use a different
method for allocations.

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

fs/gfs2/incore.h

@@ -251,7 +251,6 @@ struct gfs2_alloc {
 	unsigned int al_qd_num;
 
 	u32 al_requested; /* Filled in by caller of gfs2_inplace_reserve() */
-	u32 al_alloced; /* Filled in by gfs2_alloc_*() */
 
 	/* Filled in by gfs2_inplace_reserve() */
 	struct gfs2_holder al_rgd_gh;

fs/gfs2/rgrp.c

@@ -1372,8 +1372,6 @@ int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
 	gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
 	gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
 
-	al->al_alloced += *n;
-
 	gfs2_statfs_change(sdp, 0, -(s64)*n, dinode ? 1 : 0);
 	if (dinode)
 		gfs2_trans_add_unrevoke(sdp, block, 1);