1 files changed, 18 insertions, 199 deletions

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 598a30ba3141..d74fbec80622 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -101,7 +101,6 @@ xfs_bmap_add_extent(
         xfs_fsblock_t           *first, /* pointer to firstblock variable */
         xfs_bmap_free_t         *flist, /* list of extents to be freed */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     whichfork, /* data or attr fork */
         int                     rsvd);  /* OK to allocate reserved blocks */
 
@@ -119,7 +118,6 @@ xfs_bmap_add_extent_delay_real(
         xfs_fsblock_t           *first, /* pointer to firstblock variable */
         xfs_bmap_free_t         *flist, /* list of extents to be freed */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     rsvd);  /* OK to allocate reserved blocks */
 
 /*
@@ -132,7 +130,6 @@ xfs_bmap_add_extent_hole_delay(
         xfs_extnum_t            idx,    /* extent number to update/insert */
         xfs_bmbt_irec_t         *new,   /* new data to add to file extents */
         int                     *logflagsp,/* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     rsvd);  /* OK to allocate reserved blocks */
 
 /*
@@ -146,7 +143,6 @@ xfs_bmap_add_extent_hole_real(
         xfs_btree_cur_t         *cur,   /* if null, not a btree */
         xfs_bmbt_irec_t         *new,   /* new data to add to file extents */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     whichfork); /* data or attr fork */
 
 /*
@@ -159,8 +155,7 @@ xfs_bmap_add_extent_unwritten_real(
         xfs_extnum_t            idx,    /* extent number to update/insert */
         xfs_btree_cur_t         **curp, /* if *curp is null, not a btree */
         xfs_bmbt_irec_t         *new,   /* new data to add to file extents */
-        int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta); /* Change made to incore extents */
+        int                     *logflagsp); /* inode logging flags */
 
 /*
  * xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
@@ -197,7 +192,6 @@ xfs_bmap_del_extent(
         xfs_btree_cur_t         *cur,   /* if null, not a btree */
         xfs_bmbt_irec_t         *new,   /* new data to add to file extents */
         int                     *logflagsp,/* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     whichfork, /* data or attr fork */
         int                     rsvd);   /* OK to allocate reserved blocks */
 
@@ -486,7 +480,6 @@ xfs_bmap_add_extent(
         xfs_fsblock_t           *first, /* pointer to firstblock variable */
         xfs_bmap_free_t         *flist, /* list of extents to be freed */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     whichfork, /* data or attr fork */
         int                     rsvd)   /* OK to use reserved data blocks */
 {
@@ -521,15 +514,6 @@ xfs_bmap_add_extent(
                         logflags = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
                 } else
                         logflags = 0;
-                /* DELTA: single new extent */
-                if (delta) {
-                        if (delta->xed_startoff > new->br_startoff)
-                                delta->xed_startoff = new->br_startoff;
-                        if (delta->xed_blockcount <
-                                        new->br_startoff + new->br_blockcount)
-                                delta->xed_blockcount = new->br_startoff +
-                                                new->br_blockcount;
-                }
         }
         /*
          * Any kind of new delayed allocation goes here.
@@ -539,7 +523,7 @@ xfs_bmap_add_extent(
                         ASSERT((cur->bc_private.b.flags &
                                 XFS_BTCUR_BPRV_WASDEL) == 0);
                 if ((error = xfs_bmap_add_extent_hole_delay(ip, idx, new,
-                                &logflags, delta, rsvd)))
+                                &logflags, rsvd)))
                         goto done;
         }
         /*
@@ -550,7 +534,7 @@ xfs_bmap_add_extent(
                         ASSERT((cur->bc_private.b.flags &
                                 XFS_BTCUR_BPRV_WASDEL) == 0);
                 if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur, new,
-                                &logflags, delta, whichfork)))
+                                &logflags, whichfork)))
                         goto done;
         } else {
                 xfs_bmbt_irec_t prev;   /* old extent at offset idx */
@@ -575,17 +559,17 @@ xfs_bmap_add_extent(
                                                 XFS_BTCUR_BPRV_WASDEL);
                                 if ((error = xfs_bmap_add_extent_delay_real(ip,
                                         idx, &cur, new, &da_new, first, flist,
-                                        &logflags, delta, rsvd)))
+                                        &logflags, rsvd)))
                                         goto done;
                         } else if (new->br_state == XFS_EXT_NORM) {
                                 ASSERT(new->br_state == XFS_EXT_NORM);
                                 if ((error = xfs_bmap_add_extent_unwritten_real(
-                                        ip, idx, &cur, new, &logflags, delta)))
+                                        ip, idx, &cur, new, &logflags)))
                                         goto done;
                         } else {
                                 ASSERT(new->br_state == XFS_EXT_UNWRITTEN);
                                 if ((error = xfs_bmap_add_extent_unwritten_real(
-                                        ip, idx, &cur, new, &logflags, delta)))
+                                        ip, idx, &cur, new, &logflags)))
                                         goto done;
                         }
                         ASSERT(*curp == cur || *curp == NULL);
@@ -598,7 +582,7 @@ xfs_bmap_add_extent(
                                 ASSERT((cur->bc_private.b.flags &
                                         XFS_BTCUR_BPRV_WASDEL) == 0);
                         if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur,
-                                        new, &logflags, delta, whichfork)))
+                                        new, &logflags, whichfork)))
                                 goto done;
                 }
         }
@@ -663,7 +647,6 @@ xfs_bmap_add_extent_delay_real(
         xfs_fsblock_t           *first, /* pointer to firstblock variable */
         xfs_bmap_free_t         *flist, /* list of extents to be freed */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     rsvd)   /* OK to use reserved data block allocation */
 {
         xfs_btree_cur_t         *cur;   /* btree cursor */
@@ -794,11 +777,6 @@ xfs_bmap_add_extent_delay_real(
                                 goto done;
                 }
                 *dnew = 0;
-                /* DELTA: Three in-core extents are replaced by one. */
-                temp = LEFT.br_startoff;
-                temp2 = LEFT.br_blockcount +
-                        PREV.br_blockcount +
-                        RIGHT.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -829,10 +807,6 @@ xfs_bmap_add_extent_delay_real(
                                 goto done;
                 }
                 *dnew = 0;
-                /* DELTA: Two in-core extents are replaced by one. */
-                temp = LEFT.br_startoff;
-                temp2 = LEFT.br_blockcount +
-                        PREV.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -864,10 +838,6 @@ xfs_bmap_add_extent_delay_real(
                                 goto done;
                 }
                 *dnew = 0;
-                /* DELTA: Two in-core extents are replaced by one. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount +
-                        RIGHT.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -897,9 +867,6 @@ xfs_bmap_add_extent_delay_real(
                         XFS_WANT_CORRUPTED_GOTO(i == 1, done);
                 }
                 *dnew = 0;
-                /* DELTA: The in-core extent described by new changed type. */
-                temp = new->br_startoff;
-                temp2 = new->br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -939,10 +906,6 @@ xfs_bmap_add_extent_delay_real(
                 xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
                 trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
                 *dnew = temp;
-                /* DELTA: The boundary between two in-core extents moved. */
-                temp = LEFT.br_startoff;
-                temp2 = LEFT.br_blockcount +
-                        PREV.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING:
@@ -987,9 +950,6 @@ xfs_bmap_add_extent_delay_real(
                 xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
                 trace_xfs_bmap_post_update(ip, idx + 1, state, _THIS_IP_);
                 *dnew = temp;
-                /* DELTA: One in-core extent is split in two. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount;
                 break;
 
         case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1028,10 +988,6 @@ xfs_bmap_add_extent_delay_real(
                 xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
                 trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
                 *dnew = temp;
-                /* DELTA: The boundary between two in-core extents moved. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount +
-                        RIGHT.br_blockcount;
                 break;
 
         case BMAP_RIGHT_FILLING:
@@ -1075,9 +1031,6 @@ xfs_bmap_add_extent_delay_real(
                 xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
                 trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
                 *dnew = temp;
-                /* DELTA: One in-core extent is split in two. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount;
                 break;
 
         case 0:
@@ -1158,9 +1111,6 @@ xfs_bmap_add_extent_delay_real(
                         nullstartblock((int)temp2));
                 trace_xfs_bmap_post_update(ip, idx + 2, state, _THIS_IP_);
                 *dnew = temp + temp2;
-                /* DELTA: One in-core extent is split in three. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1176,13 +1126,6 @@ xfs_bmap_add_extent_delay_real(
                 ASSERT(0);
         }
         *curp = cur;
-        if (delta) {
-                temp2 += temp;
-                if (delta->xed_startoff > temp)
-                        delta->xed_startoff = temp;
-                if (delta->xed_blockcount < temp2)
-                        delta->xed_blockcount = temp2;
-        }
 done:
         *logflagsp = rval;
         return error;
@@ -1201,8 +1144,7 @@ xfs_bmap_add_extent_unwritten_real(
         xfs_extnum_t            idx,    /* extent number to update/insert */
         xfs_btree_cur_t         **curp, /* if *curp is null, not a btree */
         xfs_bmbt_irec_t         *new,   /* new data to add to file extents */
-        int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta) /* Change made to incore extents */
+        int                     *logflagsp) /* inode logging flags */
 {
         xfs_btree_cur_t         *cur;   /* btree cursor */
         xfs_bmbt_rec_host_t     *ep;    /* extent entry for idx */
@@ -1216,8 +1158,6 @@ xfs_bmap_add_extent_unwritten_real(
                                         /* left is 0, right is 1, prev is 2 */
         int                     rval=0; /* return value (logging flags) */
         int                     state = 0;/* state bits, accessed thru macros */
-        xfs_filblks_t           temp=0;
-        xfs_filblks_t           temp2=0;
 
 #define LEFT            r[0]
 #define RIGHT           r[1]
@@ -1338,11 +1278,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 RIGHT.br_blockcount, LEFT.br_state)))
                                 goto done;
                 }
-                /* DELTA: Three in-core extents are replaced by one. */
-                temp = LEFT.br_startoff;
-                temp2 = LEFT.br_blockcount +
-                        PREV.br_blockcount +
-                        RIGHT.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -1379,10 +1314,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 LEFT.br_state)))
                                 goto done;
                 }
-                /* DELTA: Two in-core extents are replaced by one. */
-                temp = LEFT.br_startoff;
-                temp2 = LEFT.br_blockcount +
-                        PREV.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1419,10 +1350,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 newext)))
                                 goto done;
                 }
-                /* DELTA: Two in-core extents are replaced by one. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount +
-                        RIGHT.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -1450,9 +1377,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 newext)))
                                 goto done;
                 }
-                /* DELTA: The in-core extent described by new changed type. */
-                temp = new->br_startoff;
-                temp2 = new->br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -1498,10 +1422,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 LEFT.br_state))
                                 goto done;
                 }
-                /* DELTA: The boundary between two in-core extents moved. */
-                temp = LEFT.br_startoff;
-                temp2 = LEFT.br_blockcount +
-                        PREV.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING:
@@ -1541,9 +1461,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 goto done;
                         XFS_WANT_CORRUPTED_GOTO(i == 1, done);
                 }
-                /* DELTA: One in-core extent is split in two. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount;
                 break;
 
         case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1584,10 +1501,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 newext)))
                                 goto done;
                 }
-                /* DELTA: The boundary between two in-core extents moved. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount +
-                        RIGHT.br_blockcount;
                 break;
 
         case BMAP_RIGHT_FILLING:
@@ -1627,9 +1540,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 goto done;
                         XFS_WANT_CORRUPTED_GOTO(i == 1, done);
                 }
-                /* DELTA: One in-core extent is split in two. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount;
                 break;
 
         case 0:
@@ -1689,9 +1599,6 @@ xfs_bmap_add_extent_unwritten_real(
                                 goto done;
                         XFS_WANT_CORRUPTED_GOTO(i == 1, done);
                 }
-                /* DELTA: One in-core extent is split in three. */
-                temp = PREV.br_startoff;
-                temp2 = PREV.br_blockcount;
                 break;
 
         case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1707,13 +1614,6 @@ xfs_bmap_add_extent_unwritten_real(
                 ASSERT(0);
         }
         *curp = cur;
-        if (delta) {
-                temp2 += temp;
-                if (delta->xed_startoff > temp)
-                        delta->xed_startoff = temp;
-                if (delta->xed_blockcount < temp2)
-                        delta->xed_blockcount = temp2;
-        }
 done:
         *logflagsp = rval;
         return error;
@@ -1733,7 +1633,6 @@ xfs_bmap_add_extent_hole_delay(
         xfs_extnum_t            idx,    /* extent number to update/insert */
         xfs_bmbt_irec_t         *new,   /* new data to add to file extents */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     rsvd)           /* OK to allocate reserved blocks */
 {
         xfs_bmbt_rec_host_t     *ep;    /* extent record for idx */
@@ -1744,7 +1643,6 @@ xfs_bmap_add_extent_hole_delay(
         xfs_bmbt_irec_t         right;  /* right neighbor extent entry */
         int                     state;  /* state bits, accessed thru macros */
         xfs_filblks_t           temp=0; /* temp for indirect calculations */
-        xfs_filblks_t           temp2=0;
 
         ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
         ep = xfs_iext_get_ext(ifp, idx);
@@ -1816,9 +1714,6 @@ xfs_bmap_add_extent_hole_delay(
 
                 xfs_iext_remove(ip, idx, 1, state);
                 ip->i_df.if_lastex = idx - 1;
-                /* DELTA: Two in-core extents were replaced by one. */
-                temp2 = temp;
-                temp = left.br_startoff;
                 break;
 
         case BMAP_LEFT_CONTIG:
@@ -1838,9 +1733,6 @@ xfs_bmap_add_extent_hole_delay(
                 trace_xfs_bmap_post_update(ip, idx - 1, state, _THIS_IP_);
 
                 ip->i_df.if_lastex = idx - 1;
-                /* DELTA: One in-core extent grew into a hole. */
-                temp2 = temp;
-                temp = left.br_startoff;
                 break;
 
         case BMAP_RIGHT_CONTIG:
@@ -1859,9 +1751,6 @@ xfs_bmap_add_extent_hole_delay(
                 trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
 
                 ip->i_df.if_lastex = idx;
-                /* DELTA: One in-core extent grew into a hole. */
-                temp2 = temp;
-                temp = new->br_startoff;
                 break;
 
         case 0:
@@ -1873,9 +1762,6 @@ xfs_bmap_add_extent_hole_delay(
                 oldlen = newlen = 0;
                 xfs_iext_insert(ip, idx, 1, new, state);
                 ip->i_df.if_lastex = idx;
-                /* DELTA: A new in-core extent was added in a hole. */
-                temp2 = new->br_blockcount;
-                temp = new->br_startoff;
                 break;
         }
         if (oldlen != newlen) {
@@ -1886,13 +1772,6 @@ xfs_bmap_add_extent_hole_delay(
                  * Nothing to do for disk quota accounting here.
                  */
         }
-        if (delta) {
-                temp2 += temp;
-                if (delta->xed_startoff > temp)
-                        delta->xed_startoff = temp;
-                if (delta->xed_blockcount < temp2)
-                        delta->xed_blockcount = temp2;
-        }
         *logflagsp = 0;
         return 0;
 }
@@ -1908,7 +1787,6 @@ xfs_bmap_add_extent_hole_real(
         xfs_btree_cur_t         *cur,   /* if null, not a btree */
         xfs_bmbt_irec_t         *new,   /* new data to add to file extents */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     whichfork) /* data or attr fork */
 {
         xfs_bmbt_rec_host_t     *ep;    /* pointer to extent entry ins. point */
@@ -1919,8 +1797,6 @@ xfs_bmap_add_extent_hole_real(
         xfs_bmbt_irec_t         right;  /* right neighbor extent entry */
         int                     rval=0; /* return value (logging flags) */
         int                     state;  /* state bits, accessed thru macros */
-        xfs_filblks_t           temp=0;
-        xfs_filblks_t           temp2=0;
 
         ifp = XFS_IFORK_PTR(ip, whichfork);
         ASSERT(idx <= ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t));
@@ -2017,11 +1893,6 @@ xfs_bmap_add_extent_hole_real(
                                         left.br_state)))
                                 goto done;
                 }
-                /* DELTA: Two in-core extents were replaced by one. */
-                temp = left.br_startoff;
-                temp2 = left.br_blockcount +
-                        new->br_blockcount +
-                        right.br_blockcount;
                 break;
 
         case BMAP_LEFT_CONTIG:
@@ -2053,10 +1924,6 @@ xfs_bmap_add_extent_hole_real(
                                         left.br_state)))
                                 goto done;
                 }
-                /* DELTA: One in-core extent grew. */
-                temp = left.br_startoff;
-                temp2 = left.br_blockcount +
-                        new->br_blockcount;
                 break;
 
         case BMAP_RIGHT_CONTIG:
@@ -2089,10 +1956,6 @@ xfs_bmap_add_extent_hole_real(
                                         right.br_state)))
                                 goto done;
                 }
-                /* DELTA: One in-core extent grew. */
-                temp = new->br_startoff;
-                temp2 = new->br_blockcount +
-                        right.br_blockcount;
                 break;
 
         case 0:
@@ -2120,18 +1983,8 @@ xfs_bmap_add_extent_hole_real(
                                 goto done;
                         XFS_WANT_CORRUPTED_GOTO(i == 1, done);
                 }
-                /* DELTA: A new extent was added in a hole. */
-                temp = new->br_startoff;
-                temp2 = new->br_blockcount;
                 break;
         }
-        if (delta) {
-                temp2 += temp;
-                if (delta->xed_startoff > temp)
-                        delta->xed_startoff = temp;
-                if (delta->xed_blockcount < temp2)
-                        delta->xed_blockcount = temp2;
-        }
 done:
         *logflagsp = rval;
         return error;
@@ -2956,7 +2809,6 @@ xfs_bmap_del_extent(
         xfs_btree_cur_t         *cur,   /* if null, not a btree */
         xfs_bmbt_irec_t         *del,   /* data to remove from extents */
         int                     *logflagsp, /* inode logging flags */
-        xfs_extdelta_t          *delta, /* Change made to incore extents */
         int                     whichfork, /* data or attr fork */
         int                     rsvd)   /* OK to allocate reserved blocks */
 {
@@ -3262,14 +3114,6 @@ xfs_bmap_del_extent(
         if (da_old > da_new)
                 xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int64_t)(da_old - da_new),
                         rsvd);
-        if (delta) {
-                /* DELTA: report the original extent. */
-                if (delta->xed_startoff > got.br_startoff)
-                        delta->xed_startoff = got.br_startoff;
-                if (delta->xed_blockcount < got.br_startoff+got.br_blockcount)
-                        delta->xed_blockcount = got.br_startoff +
-                                                        got.br_blockcount;
-        }
 done:
         *logflagsp = flags;
         return error;
@@ -4481,8 +4325,7 @@ xfs_bmapi(
         xfs_extlen_t    total,          /* total blocks needed */
         xfs_bmbt_irec_t *mval,          /* output: map values */
         int             *nmap,          /* i/o: mval size/count */
-        xfs_bmap_free_t *flist,         /* i/o: list extents to free */
-        xfs_extdelta_t  *delta)         /* o: change made to incore extents */
+        xfs_bmap_free_t *flist)         /* i/o: list extents to free */
 {
         xfs_fsblock_t   abno;           /* allocated block number */
         xfs_extlen_t    alen;           /* allocated extent length */
@@ -4594,10 +4437,7 @@ xfs_bmapi(
         end = bno + len;
         obno = bno;
         bma.ip = NULL;
-        if (delta) {
-                delta->xed_startoff = NULLFILEOFF;
-                delta->xed_blockcount = 0;
-        }
+
         while (bno < end && n < *nmap) {
                 /*
                  * Reading past eof, act as though there's a hole
@@ -4823,7 +4663,7 @@ xfs_bmapi(
                                         got.br_state = XFS_EXT_UNWRITTEN;
                         }
                         error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
-                                firstblock, flist, &tmp_logflags, delta,
+                                firstblock, flist, &tmp_logflags,
                                 whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
                         logflags |= tmp_logflags;
                         if (error)
@@ -4919,7 +4759,7 @@ xfs_bmapi(
                         }
                         mval->br_state = XFS_EXT_NORM;
                         error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
-                                firstblock, flist, &tmp_logflags, delta,
+                                firstblock, flist, &tmp_logflags,
                                 whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
                         logflags |= tmp_logflags;
                         if (error)
@@ -5009,14 +4849,6 @@ xfs_bmapi(
         ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE ||
                XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max);
         error = 0;
-        if (delta && delta->xed_startoff != NULLFILEOFF) {
-                /* A change was actually made.
-                 * Note that delta->xed_blockount is an offset at this
-                 * point and needs to be converted to a block count.
-                 */
-                ASSERT(delta->xed_blockcount > delta->xed_startoff);
-                delta->xed_blockcount -= delta->xed_startoff;
-        }
 error0:
         /*
          * Log everything.  Do this after conversion, there's no point in
@@ -5128,8 +4960,6 @@ xfs_bunmapi(
         xfs_fsblock_t           *firstblock,    /* first allocated block
                                                    controls a.g. for allocs */
         xfs_bmap_free_t         *flist,         /* i/o: list extents to free */
-        xfs_extdelta_t          *delta,         /* o: change made to incore
-                                                   extents */
         int                     *done)          /* set if not done yet */
 {
         xfs_btree_cur_t         *cur;           /* bmap btree cursor */
@@ -5188,10 +5018,7 @@ xfs_bunmapi(
         bno = start + len - 1;
         ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
                 &prev);
-        if (delta) {
-                delta->xed_startoff = NULLFILEOFF;
-                delta->xed_blockcount = 0;
-        }
+
         /*
          * Check to see if the given block number is past the end of the
          * file, back up to the last block if so...
@@ -5289,7 +5116,7 @@ xfs_bunmapi(
                         }
                         del.br_state = XFS_EXT_UNWRITTEN;
                         error = xfs_bmap_add_extent(ip, lastx, &cur, &del,
-                                firstblock, flist, &logflags, delta,
+                                firstblock, flist, &logflags,
                                 XFS_DATA_FORK, 0);
                         if (error)
                                 goto error0;
@@ -5344,7 +5171,7 @@ xfs_bunmapi(
                                 prev.br_state = XFS_EXT_UNWRITTEN;
                                 error = xfs_bmap_add_extent(ip, lastx - 1, &cur,
                                         &prev, firstblock, flist, &logflags,
-                                        delta, XFS_DATA_FORK, 0);
+                                        XFS_DATA_FORK, 0);
                                 if (error)
                                         goto error0;
                                 goto nodelete;
@@ -5353,7 +5180,7 @@ xfs_bunmapi(
                                 del.br_state = XFS_EXT_UNWRITTEN;
                                 error = xfs_bmap_add_extent(ip, lastx, &cur,
                                         &del, firstblock, flist, &logflags,
-                                        delta, XFS_DATA_FORK, 0);
+                                        XFS_DATA_FORK, 0);
                                 if (error)
                                         goto error0;
                                 goto nodelete;
@@ -5406,7 +5233,7 @@ xfs_bunmapi(
                         goto error0;
                 }
                 error = xfs_bmap_del_extent(ip, tp, lastx, flist, cur, &del,
-                                &tmp_logflags, delta, whichfork, rsvd);
+                                &tmp_logflags, whichfork, rsvd);
                 logflags |= tmp_logflags;
                 if (error)
                         goto error0;
@@ -5463,14 +5290,6 @@ nodelete:
         ASSERT(ifp->if_ext_max ==
                XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
         error = 0;
-        if (delta && delta->xed_startoff != NULLFILEOFF) {
-                /* A change was actually made.
-                 * Note that delta->xed_blockount is an offset at this
-                 * point and needs to be converted to a block count.
-                 */
-                ASSERT(delta->xed_blockcount > delta->xed_startoff);
-                delta->xed_blockcount -= delta->xed_startoff;
-        }
 error0:
         /*
          * Log everything.  Do this after conversion, there's no point in
@@ -5683,7 +5502,7 @@ xfs_getbmap(
                 error = xfs_bmapi(NULL, ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
                                   XFS_BB_TO_FSB(mp, bmv->bmv_length),
                                   bmapi_flags, NULL, 0, map, &nmap,
-                                  NULL, NULL);
+                                  NULL);
                 if (error)
                         goto out_free_map;
                 ASSERT(nmap <= subnex);