GFS2: Update rgblk_free() to use rbm

Replace open coded version with a call to gfs2_rbm_from_block()

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

1 files changed, 14 insertions, 30 deletions

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 0c1be38f837..06476b34a1b 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1890,46 +1890,30 @@ static u64 gfs2_alloc_extent(const struct gfs2_rbm *rbm, bool dinode,
 static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
                                      u32 blen, unsigned char new_state)
 {
-        struct gfs2_rgrpd *rgd;
-        struct gfs2_bitmap *bi = NULL;
-        u32 length, rgrp_blk, buf_blk;
-        unsigned int buf;
+        struct gfs2_rbm rbm;
 
-        rgd = gfs2_blk2rgrpd(sdp, bstart, 1);
-        if (!rgd) {
+        rbm.rgd = gfs2_blk2rgrpd(sdp, bstart, 1);
+        if (!rbm.rgd) {
                 if (gfs2_consist(sdp))
                         fs_err(sdp, "block = %llu\n", (unsigned long long)bstart);
                 return NULL;
         }
 
-        length = rgd->rd_length;
-
-        rgrp_blk = bstart - rgd->rd_data0;
-
         while (blen--) {
-                for (buf = 0; buf < length; buf++) {
-                        bi = rgd->rd_bits + buf;
-                        if (rgrp_blk < (bi->bi_start + bi->bi_len) * GFS2_NBBY)
-                                break;
+                gfs2_rbm_from_block(&rbm, bstart);
+                bstart++;
+                if (!rbm.bi->bi_clone) {
+                        rbm.bi->bi_clone = kmalloc(rbm.bi->bi_bh->b_size,
+                                                   GFP_NOFS | __GFP_NOFAIL);
+                        memcpy(rbm.bi->bi_clone + rbm.bi->bi_offset,
+                               rbm.bi->bi_bh->b_data + rbm.bi->bi_offset,
+                               rbm.bi->bi_len);
                 }
-
-                gfs2_assert(rgd->rd_sbd, buf < length);
-
-                buf_blk = rgrp_blk - bi->bi_start * GFS2_NBBY;
-                rgrp_blk++;
-
-                if (!bi->bi_clone) {
-                        bi->bi_clone = kmalloc(bi->bi_bh->b_size,
-                                               GFP_NOFS | __GFP_NOFAIL);
-                        memcpy(bi->bi_clone + bi->bi_offset,
-                               bi->bi_bh->b_data + bi->bi_offset,
-                               bi->bi_len);
-                }
-                gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
-                gfs2_setbit(rgd, NULL, bi, buf_blk, new_state);
+                gfs2_trans_add_bh(rbm.rgd->rd_gl, rbm.bi->bi_bh, 1);
+                gfs2_setbit(rbm.rgd, NULL, rbm.bi, rbm.offset, new_state);
         }
 
-        return rgd;
+        return rbm.rgd;
 }
 
 /**