Revert to Fedora kernel-2.6.17-1.2187_FC5 patched with vs2.0.2.1; there are too many...
[linux-2.6.git] / fs / xfs / xfs_bmap.c
index bf46fae..26939d3 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2006 Silicon Graphics, Inc.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
  * All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
+#include "xfs_dir.h"
 #include "xfs_dir2.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
+#include "xfs_dir_sf.h"
 #include "xfs_dir2_sf.h"
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_mount.h"
 #include "xfs_ialloc.h"
 #include "xfs_itable.h"
-#include "xfs_dir2_data.h"
-#include "xfs_dir2_leaf.h"
-#include "xfs_dir2_block.h"
 #include "xfs_inode_item.h"
 #include "xfs_extfree_item.h"
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
+#include "xfs_dir_leaf.h"
 #include "xfs_attr_leaf.h"
 #include "xfs_rw.h"
 #include "xfs_quota.h"
@@ -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 */
 
 /*
@@ -133,7 +131,6 @@ xfs_bmap_add_extent_hole_delay(
        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                     rsvd);  /* OK to allocate reserved blocks */
 
 /*
@@ -147,7 +144,6 @@ 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 */
 
 /*
@@ -160,8 +156,7 @@ 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.
@@ -208,7 +203,6 @@ 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 */
 
@@ -516,7 +510,7 @@ xfs_bmap_add_attrfork_local(
                dargs.total = mp->m_dirblkfsbs;
                dargs.whichfork = XFS_DATA_FORK;
                dargs.trans = tp;
-               error = xfs_dir2_sf_to_block(&dargs);
+               error = XFS_DIR_SHORTFORM_TO_SINGLE(mp, &dargs);
        } else
                error = xfs_bmap_local_to_extents(tp, ip, firstblock, 1, flags,
                        XFS_DATA_FORK);
@@ -536,7 +530,6 @@ 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 */
 {
@@ -574,15 +567,6 @@ 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.
@@ -592,7 +576,7 @@ 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, cur, new,
-                               &logflags, delta, rsvd)))
+                               &logflags, rsvd)))
                        goto done;
        }
        /*
@@ -603,7 +587,7 @@ 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 */
@@ -628,17 +612,17 @@ 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);
@@ -651,7 +635,7 @@ 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;
                }
        }
@@ -716,7 +700,6 @@ 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 */
@@ -733,8 +716,8 @@ xfs_bmap_add_extent_delay_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; /* value for dnew calculations */
-       xfs_filblks_t           temp2=0;/* value for dnew calculations */
+       xfs_filblks_t           temp;   /* value for dnew calculations */
+       xfs_filblks_t           temp2;  /* value for dnew calculations */
        int                     tmp_rval;       /* partial logging flags */
        enum {                          /* bit number definitions for state */
                LEFT_CONTIG,    RIGHT_CONTIG,
@@ -856,11 +839,6 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG):
@@ -894,10 +872,6 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, RIGHT_CONTIG):
@@ -932,10 +906,6 @@ 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 MASK2(LEFT_FILLING, RIGHT_FILLING):
@@ -966,9 +936,6 @@ xfs_bmap_add_extent_delay_real(
                        ASSERT(i == 1);
                }
                *dnew = 0;
-               /* DELTA: The in-core extent described by new changed type. */
-               temp = new->br_startoff;
-               temp2 = new->br_blockcount;
                break;
 
        case MASK2(LEFT_FILLING, LEFT_CONTIG):
@@ -1011,10 +978,6 @@ xfs_bmap_add_extent_delay_real(
                xfs_bmap_trace_post_update(fname, "LF|LC", ip, idx,
                        XFS_DATA_FORK);
                *dnew = temp;
-               /* DELTA: The boundary between two in-core extents moved. */
-               temp = LEFT.br_startoff;
-               temp2 = LEFT.br_blockcount +
-                       PREV.br_blockcount;
                break;
 
        case MASK(LEFT_FILLING):
@@ -1062,9 +1025,6 @@ xfs_bmap_add_extent_delay_real(
                xfs_bmap_trace_post_update(fname, "LF", ip, idx + 1,
                        XFS_DATA_FORK);
                *dnew = temp;
-               /* DELTA: One in-core extent is split in two. */
-               temp = PREV.br_startoff;
-               temp2 = PREV.br_blockcount;
                break;
 
        case MASK2(RIGHT_FILLING, RIGHT_CONTIG):
@@ -1107,10 +1067,6 @@ xfs_bmap_add_extent_delay_real(
                xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx,
                        XFS_DATA_FORK);
                *dnew = temp;
-               /* DELTA: The boundary between two in-core extents moved. */
-               temp = PREV.br_startoff;
-               temp2 = PREV.br_blockcount +
-                       RIGHT.br_blockcount;
                break;
 
        case MASK(RIGHT_FILLING):
@@ -1156,9 +1112,6 @@ xfs_bmap_add_extent_delay_real(
                xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
                xfs_bmap_trace_post_update(fname, "RF", ip, idx, XFS_DATA_FORK);
                *dnew = temp;
-               /* DELTA: One in-core extent is split in two. */
-               temp = PREV.br_startoff;
-               temp2 = PREV.br_blockcount;
                break;
 
        case 0:
@@ -1241,9 +1194,6 @@ xfs_bmap_add_extent_delay_real(
                xfs_bmap_trace_post_update(fname, "0", ip, idx + 2,
                        XFS_DATA_FORK);
                *dnew = temp + temp2;
-               /* DELTA: One in-core extent is split in three. */
-               temp = PREV.br_startoff;
-               temp2 = PREV.br_blockcount;
                break;
 
        case MASK3(LEFT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
@@ -1259,13 +1209,6 @@ 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;
@@ -1292,8 +1235,7 @@ 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_t          *ep;    /* extent entry for idx */
@@ -1310,8 +1252,6 @@ 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;
        enum {                          /* bit number definitions for state */
                LEFT_CONTIG,    RIGHT_CONTIG,
                LEFT_FILLING,   RIGHT_FILLING,
@@ -1440,11 +1380,6 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG):
@@ -1484,10 +1419,6 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, RIGHT_CONTIG):
@@ -1528,10 +1459,6 @@ 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 MASK2(LEFT_FILLING, RIGHT_FILLING):
@@ -1560,9 +1487,6 @@ 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 MASK2(LEFT_FILLING, LEFT_CONTIG):
@@ -1610,10 +1534,6 @@ 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 MASK(LEFT_FILLING):
@@ -1654,9 +1574,6 @@ xfs_bmap_add_extent_unwritten_real(
                                goto done;
                        ASSERT(i == 1);
                }
-               /* DELTA: One in-core extent is split in two. */
-               temp = PREV.br_startoff;
-               temp2 = PREV.br_blockcount;
                break;
 
        case MASK2(RIGHT_FILLING, RIGHT_CONTIG):
@@ -1700,10 +1617,6 @@ 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 MASK(RIGHT_FILLING):
@@ -1744,9 +1657,6 @@ xfs_bmap_add_extent_unwritten_real(
                                goto done;
                        ASSERT(i == 1);
                }
-               /* DELTA: One in-core extent is split in two. */
-               temp = PREV.br_startoff;
-               temp2 = PREV.br_blockcount;
                break;
 
        case 0:
@@ -1800,9 +1710,6 @@ xfs_bmap_add_extent_unwritten_real(
                                goto done;
                        ASSERT(i == 1);
                }
-               /* DELTA: One in-core extent is split in three. */
-               temp = PREV.br_startoff;
-               temp2 = PREV.br_blockcount;
                break;
 
        case MASK3(LEFT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
@@ -1818,13 +1725,6 @@ 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;
@@ -1853,7 +1753,6 @@ xfs_bmap_add_extent_hole_delay(
        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                     rsvd)           /* OK to allocate reserved blocks */
 {
        xfs_bmbt_rec_t          *ep;    /* extent record for idx */
@@ -1866,8 +1765,7 @@ xfs_bmap_add_extent_hole_delay(
        xfs_filblks_t           oldlen=0;       /* old indirect size */
        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;
+       xfs_filblks_t           temp;   /* temp for indirect calculations */
        enum {                          /* bit number definitions for state */
                LEFT_CONTIG,    RIGHT_CONTIG,
                LEFT_DELAY,     RIGHT_DELAY,
@@ -1946,9 +1844,6 @@ xfs_bmap_add_extent_hole_delay(
                        XFS_DATA_FORK);
                xfs_iext_remove(ifp, idx, 1);
                ip->i_df.if_lastex = idx - 1;
-               /* DELTA: Two in-core extents were replaced by one. */
-               temp2 = temp;
-               temp = left.br_startoff;
                break;
 
        case MASK(LEFT_CONTIG):
@@ -1969,9 +1864,6 @@ xfs_bmap_add_extent_hole_delay(
                xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1,
                        XFS_DATA_FORK);
                ip->i_df.if_lastex = idx - 1;
-               /* DELTA: One in-core extent grew into a hole. */
-               temp2 = temp;
-               temp = left.br_startoff;
                break;
 
        case MASK(RIGHT_CONTIG):
@@ -1989,9 +1881,6 @@ xfs_bmap_add_extent_hole_delay(
                        NULLSTARTBLOCK((int)newlen), temp, right.br_state);
                xfs_bmap_trace_post_update(fname, "RC", ip, idx, XFS_DATA_FORK);
                ip->i_df.if_lastex = idx;
-               /* DELTA: One in-core extent grew into a hole. */
-               temp2 = temp;
-               temp = new->br_startoff;
                break;
 
        case 0:
@@ -2005,9 +1894,6 @@ xfs_bmap_add_extent_hole_delay(
                        XFS_DATA_FORK);
                xfs_iext_insert(ifp, idx, 1, new);
                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) {
@@ -2018,13 +1904,6 @@ 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;
 #undef MASK
@@ -2046,7 +1925,6 @@ 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_t          *ep;    /* pointer to extent entry ins. point */
@@ -2058,10 +1936,7 @@ xfs_bmap_add_extent_hole_real(
        xfs_ifork_t             *ifp;   /* inode fork pointer */
        xfs_bmbt_irec_t         left;   /* left neighbor extent entry */
        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;
        enum {                          /* bit number definitions for state */
                LEFT_CONTIG,    RIGHT_CONTIG,
                LEFT_DELAY,     RIGHT_DELAY,
@@ -2118,7 +1993,6 @@ xfs_bmap_add_extent_hole_real(
                 left.br_blockcount + new->br_blockcount +
                     right.br_blockcount <= MAXEXTLEN));
 
-       error = 0;
        /*
         * Select which case we're in here, and implement it.
         */
@@ -2144,35 +2018,25 @@ xfs_bmap_add_extent_hole_real(
                XFS_IFORK_NEXT_SET(ip, whichfork,
                        XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
                if (cur == NULL) {
-                       rval = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
-               } else {
-                       rval = XFS_ILOG_CORE;
-                       if ((error = xfs_bmbt_lookup_eq(cur,
-                                       right.br_startoff,
-                                       right.br_startblock,
-                                       right.br_blockcount, &i)))
-                               goto done;
-                       ASSERT(i == 1);
-                       if ((error = xfs_bmbt_delete(cur, &i)))
-                               goto done;
-                       ASSERT(i == 1);
-                       if ((error = xfs_bmbt_decrement(cur, 0, &i)))
-                               goto done;
-                       ASSERT(i == 1);
-                       if ((error = xfs_bmbt_update(cur, left.br_startoff,
-                                       left.br_startblock,
-                                       left.br_blockcount +
-                                               new->br_blockcount +
-                                               right.br_blockcount,
-                                       left.br_state)))
-                               goto done;
+                       *logflagsp = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
+                       return 0;
                }
-               /* DELTA: Two in-core extents were replaced by one. */
-               temp = left.br_startoff;
-               temp2 = left.br_blockcount +
-                       new->br_blockcount +
-                       right.br_blockcount;
-               break;
+               *logflagsp = XFS_ILOG_CORE;
+               if ((error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
+                               right.br_startblock, right.br_blockcount, &i)))
+                       return error;
+               ASSERT(i == 1);
+               if ((error = xfs_bmbt_delete(cur, &i)))
+                       return error;
+               ASSERT(i == 1);
+               if ((error = xfs_bmbt_decrement(cur, 0, &i)))
+                       return error;
+               ASSERT(i == 1);
+               error = xfs_bmbt_update(cur, left.br_startoff,
+                               left.br_startblock,
+                               left.br_blockcount + new->br_blockcount +
+                               right.br_blockcount, left.br_state);
+               return error;
 
        case MASK(LEFT_CONTIG):
                /*
@@ -2186,27 +2050,19 @@ xfs_bmap_add_extent_hole_real(
                xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1, whichfork);
                ifp->if_lastex = idx - 1;
                if (cur == NULL) {
-                       rval = XFS_ILOG_FEXT(whichfork);
-               } else {
-                       rval = 0;
-                       if ((error = xfs_bmbt_lookup_eq(cur,
-                                       left.br_startoff,
-                                       left.br_startblock,
-                                       left.br_blockcount, &i)))
-                               goto done;
-                       ASSERT(i == 1);
-                       if ((error = xfs_bmbt_update(cur, left.br_startoff,
-                                       left.br_startblock,
-                                       left.br_blockcount +
-                                               new->br_blockcount,
-                                       left.br_state)))
-                               goto done;
+                       *logflagsp = XFS_ILOG_FEXT(whichfork);
+                       return 0;
                }
-               /* DELTA: One in-core extent grew. */
-               temp = left.br_startoff;
-               temp2 = left.br_blockcount +
-                       new->br_blockcount;
-               break;
+               *logflagsp = 0;
+               if ((error = xfs_bmbt_lookup_eq(cur, left.br_startoff,
+                               left.br_startblock, left.br_blockcount, &i)))
+                       return error;
+               ASSERT(i == 1);
+               error = xfs_bmbt_update(cur, left.br_startoff,
+                               left.br_startblock,
+                               left.br_blockcount + new->br_blockcount,
+                               left.br_state);
+               return error;
 
        case MASK(RIGHT_CONTIG):
                /*
@@ -2221,27 +2077,19 @@ xfs_bmap_add_extent_hole_real(
                xfs_bmap_trace_post_update(fname, "RC", ip, idx, whichfork);
                ifp->if_lastex = idx;
                if (cur == NULL) {
-                       rval = XFS_ILOG_FEXT(whichfork);
-               } else {
-                       rval = 0;
-                       if ((error = xfs_bmbt_lookup_eq(cur,
-                                       right.br_startoff,
-                                       right.br_startblock,
-                                       right.br_blockcount, &i)))
-                               goto done;
-                       ASSERT(i == 1);
-                       if ((error = xfs_bmbt_update(cur, new->br_startoff,
-                                       new->br_startblock,
-                                       new->br_blockcount +
-                                               right.br_blockcount,
-                                       right.br_state)))
-                               goto done;
+                       *logflagsp = XFS_ILOG_FEXT(whichfork);
+                       return 0;
                }
-               /* DELTA: One in-core extent grew. */
-               temp = new->br_startoff;
-               temp2 = new->br_blockcount +
-                       right.br_blockcount;
-               break;
+               *logflagsp = 0;
+               if ((error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
+                               right.br_startblock, right.br_blockcount, &i)))
+                       return error;
+               ASSERT(i == 1);
+               error = xfs_bmbt_update(cur, new->br_startoff,
+                               new->br_startblock,
+                               new->br_blockcount + right.br_blockcount,
+                               right.br_state);
+               return error;
 
        case 0:
                /*
@@ -2256,41 +2104,29 @@ xfs_bmap_add_extent_hole_real(
                XFS_IFORK_NEXT_SET(ip, whichfork,
                        XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
                if (cur == NULL) {
-                       rval = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
-               } else {
-                       rval = XFS_ILOG_CORE;
-                       if ((error = xfs_bmbt_lookup_eq(cur,
-                                       new->br_startoff,
-                                       new->br_startblock,
-                                       new->br_blockcount, &i)))
-                               goto done;
-                       ASSERT(i == 0);
-                       cur->bc_rec.b.br_state = new->br_state;
-                       if ((error = xfs_bmbt_insert(cur, &i)))
-                               goto done;
-                       ASSERT(i == 1);
+                       *logflagsp = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
+                       return 0;
                }
-               /* 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;
+               *logflagsp = XFS_ILOG_CORE;
+               if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+                               new->br_startblock, new->br_blockcount, &i)))
+                       return error;
+               ASSERT(i == 0);
+               cur->bc_rec.b.br_state = new->br_state;
+               if ((error = xfs_bmbt_insert(cur, &i)))
+                       return error;
+               ASSERT(i == 1);
+               return 0;
        }
-done:
-       *logflagsp = rval;
-       return error;
 #undef MASK
 #undef MASK2
 #undef STATE_SET
 #undef STATE_TEST
 #undef STATE_SET_TEST
 #undef SWITCH_STATE
+       /* NOTREACHED */
+       ASSERT(0);
+       return 0; /* keep gcc quite */
 }
 
 /*
@@ -2762,7 +2598,6 @@ xfs_bmap_btalloc(
        args.mp = mp;
        args.fsbno = ap->rval;
        args.maxlen = MIN(ap->alen, mp->m_sb.sb_agblocks);
-       args.firstblock = ap->firstblock;
        blen = 0;
        if (nullfb) {
                args.type = XFS_ALLOCTYPE_START_BNO;
@@ -2822,7 +2657,7 @@ xfs_bmap_btalloc(
                else
                        args.minlen = ap->alen;
        } else if (ap->low) {
-               args.type = XFS_ALLOCTYPE_START_BNO;
+               args.type = XFS_ALLOCTYPE_FIRST_AG;
                args.total = args.minlen = ap->minlen;
        } else {
                args.type = XFS_ALLOCTYPE_NEAR_BNO;
@@ -2834,7 +2669,7 @@ xfs_bmap_btalloc(
                args.prod = ap->ip->i_d.di_extsize;
                if ((args.mod = (xfs_extlen_t)do_mod(ap->off, args.prod)))
                        args.mod = (xfs_extlen_t)(args.prod - args.mod);
-       } else if (mp->m_sb.sb_blocksize >= NBPP) {
+       } else if (unlikely(mp->m_sb.sb_blocksize >= NBPP)) {
                args.prod = 1;
                args.mod = 0;
        } else {
@@ -3050,7 +2885,6 @@ 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 */
 {
@@ -3359,14 +3193,6 @@ xfs_bmap_del_extent(
        if (da_old > da_new)
                xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int)(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;
@@ -3453,7 +3279,6 @@ xfs_bmap_extents_to_btree(
        XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_BTREE);
        args.tp = tp;
        args.mp = mp;
-       args.firstblock = *firstblock;
        if (*firstblock == NULLFSBLOCK) {
                args.type = XFS_ALLOCTYPE_START_BNO;
                args.fsbno = XFS_INO_TO_FSB(mp, ip->i_ino);
@@ -3589,7 +3414,6 @@ xfs_bmap_local_to_extents(
 
                args.tp = tp;
                args.mp = ip->i_mount;
-               args.firstblock = *firstblock;
                ASSERT((ifp->if_flags &
                        (XFS_IFINLINE|XFS_IFEXTENTS|XFS_IFEXTIREC)) == XFS_IFINLINE);
                /*
@@ -3929,7 +3753,7 @@ xfs_bunmap_trace(
        if (ip->i_rwtrace == NULL)
                return;
        ktrace_enter(ip->i_rwtrace,
-               (void *)(__psint_t)XFS_BUNMAP,
+               (void *)(__psint_t)XFS_BUNMAPI,
                (void *)ip,
                (void *)(__psint_t)((ip->i_d.di_size >> 32) & 0xffffffff),
                (void *)(__psint_t)(ip->i_d.di_size & 0xffffffff),
@@ -4263,8 +4087,8 @@ xfs_bmap_finish(
                        if (!XFS_FORCED_SHUTDOWN(mp))
                                xfs_force_shutdown(mp,
                                                   (error == EFSCORRUPTED) ?
-                                                  SHUTDOWN_CORRUPT_INCORE :
-                                                  SHUTDOWN_META_IO_ERROR);
+                                                  XFS_CORRUPT_INCORE :
+                                                  XFS_METADATA_IO_ERROR);
                        return error;
                }
                xfs_trans_log_efd_extent(ntp, efd, free->xbfi_startblock,
@@ -4714,8 +4538,7 @@ 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 */
@@ -4827,10 +4650,6 @@ 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
@@ -4993,7 +4812,7 @@ xfs_bmapi(
                                bma.firstblock = *firstblock;
                                bma.alen = alen;
                                bma.off = aoff;
-                               bma.conv = !!(flags & XFS_BMAPI_CONVERT);
+                               bma.conv = (flags & XFS_BMAPI_CONVERT);
                                bma.wasdel = wasdelay;
                                bma.minlen = minlen;
                                bma.low = flist->xbf_low;
@@ -5067,8 +4886,8 @@ xfs_bmapi(
                                        got.br_state = XFS_EXT_UNWRITTEN;
                        }
                        error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
-                               firstblock, flist, &tmp_logflags, delta,
-                               whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
+                               firstblock, flist, &tmp_logflags, whichfork,
+                               (flags & XFS_BMAPI_RSVBLOCKS));
                        logflags |= tmp_logflags;
                        if (error)
                                goto error0;
@@ -5164,8 +4983,8 @@ xfs_bmapi(
                        }
                        mval->br_state = XFS_EXT_NORM;
                        error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
-                               firstblock, flist, &tmp_logflags, delta,
-                               whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
+                               firstblock, flist, &tmp_logflags, whichfork,
+                               (flags & XFS_BMAPI_RSVBLOCKS));
                        logflags |= tmp_logflags;
                        if (error)
                                goto error0;
@@ -5254,14 +5073,7 @@ 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
@@ -5373,8 +5185,6 @@ 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 */
@@ -5432,10 +5242,6 @@ 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...
@@ -5534,8 +5340,7 @@ 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);
+                               firstblock, flist, &logflags, XFS_DATA_FORK, 0);
                        if (error)
                                goto error0;
                        goto nodelete;
@@ -5589,7 +5394,7 @@ 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;
@@ -5598,7 +5403,7 @@ 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;
@@ -5651,7 +5456,7 @@ 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;
@@ -5708,14 +5513,6 @@ 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
@@ -5759,7 +5556,7 @@ xfs_getbmap(
        __int64_t               fixlen;         /* length for -1 case */
        int                     i;              /* extent number */
        xfs_inode_t             *ip;            /* xfs incore inode pointer */
-       bhv_vnode_t             *vp;            /* corresponding vnode */
+       vnode_t                 *vp;            /* corresponding vnode */
        int                     lock;           /* lock state */
        xfs_bmbt_irec_t         *map;           /* buffer for user's data */
        xfs_mount_t             *mp;            /* file system mount point */
@@ -5856,7 +5653,7 @@ xfs_getbmap(
 
        if (whichfork == XFS_DATA_FORK && ip->i_delayed_blks) {
                /* xfs_fsize_t last_byte = xfs_file_last_byte(ip); */
-               error = bhv_vop_flush_pages(vp, (xfs_off_t)0, -1, 0, FI_REMAPF);
+               VOP_FLUSH_PAGES(vp, (xfs_off_t)0, -1, 0, FI_REMAPF, error);
        }
 
        ASSERT(whichfork == XFS_ATTR_FORK || ip->i_delayed_blks == 0);
@@ -5892,8 +5689,7 @@ xfs_getbmap(
                nmap = (nexleft > subnex) ? subnex : nexleft;
                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);
+                                 bmapi_flags, NULL, 0, map, &nmap, NULL);
                if (error)
                        goto unlock_and_return;
                ASSERT(nmap <= subnex);