]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - fs/xfs/xfs_bmap.c
Merge branch 'viro'
[linux-2.6-omap-h63xx.git] / fs / xfs / xfs_bmap.c
index e52387b3abef805f6f2879f287240d5f607724f8..70625e577c70b7421ad18a7e180f02962c679952 100644 (file)
@@ -423,6 +423,12 @@ xfs_bmap_count_leaves(
        int                     numrecs,
        int                     *count);
 
+STATIC int
+xfs_bmap_disk_count_leaves(
+       xfs_bmbt_rec_t          *frp,
+       int                     numrecs,
+       int                     *count);
+
 /*
  * Bmap internal routines.
  */
@@ -2140,13 +2146,176 @@ xfs_bmap_add_extent_hole_real(
        return 0; /* keep gcc quite */
 }
 
+/*
+ * Adjust the size of the new extent based on di_extsize and rt extsize.
+ */
+STATIC int
+xfs_bmap_extsize_align(
+       xfs_mount_t     *mp,
+       xfs_bmbt_irec_t *gotp,          /* next extent pointer */
+       xfs_bmbt_irec_t *prevp,         /* previous extent pointer */
+       xfs_extlen_t    extsz,          /* align to this extent size */
+       int             rt,             /* is this a realtime inode? */
+       int             eof,            /* is extent at end-of-file? */
+       int             delay,          /* creating delalloc extent? */
+       int             convert,        /* overwriting unwritten extent? */
+       xfs_fileoff_t   *offp,          /* in/out: aligned offset */
+       xfs_extlen_t    *lenp)          /* in/out: aligned length */
+{
+       xfs_fileoff_t   orig_off;       /* original offset */
+       xfs_extlen_t    orig_alen;      /* original length */
+       xfs_fileoff_t   orig_end;       /* original off+len */
+       xfs_fileoff_t   nexto;          /* next file offset */
+       xfs_fileoff_t   prevo;          /* previous file offset */
+       xfs_fileoff_t   align_off;      /* temp for offset */
+       xfs_extlen_t    align_alen;     /* temp for length */
+       xfs_extlen_t    temp;           /* temp for calculations */
+
+       if (convert)
+               return 0;
+
+       orig_off = align_off = *offp;
+       orig_alen = align_alen = *lenp;
+       orig_end = orig_off + orig_alen;
+
+       /*
+        * If this request overlaps an existing extent, then don't
+        * attempt to perform any additional alignment.
+        */
+       if (!delay && !eof &&
+           (orig_off >= gotp->br_startoff) &&
+           (orig_end <= gotp->br_startoff + gotp->br_blockcount)) {
+               return 0;
+       }
+
+       /*
+        * If the file offset is unaligned vs. the extent size
+        * we need to align it.  This will be possible unless
+        * the file was previously written with a kernel that didn't
+        * perform this alignment, or if a truncate shot us in the
+        * foot.
+        */
+       temp = do_mod(orig_off, extsz);
+       if (temp) {
+               align_alen += temp;
+               align_off -= temp;
+       }
+       /*
+        * Same adjustment for the end of the requested area.
+        */
+       if ((temp = (align_alen % extsz))) {
+               align_alen += extsz - temp;
+       }
+       /*
+        * If the previous block overlaps with this proposed allocation
+        * then move the start forward without adjusting the length.
+        */
+       if (prevp->br_startoff != NULLFILEOFF) {
+               if (prevp->br_startblock == HOLESTARTBLOCK)
+                       prevo = prevp->br_startoff;
+               else
+                       prevo = prevp->br_startoff + prevp->br_blockcount;
+       } else
+               prevo = 0;
+       if (align_off != orig_off && align_off < prevo)
+               align_off = prevo;
+       /*
+        * If the next block overlaps with this proposed allocation
+        * then move the start back without adjusting the length,
+        * but not before offset 0.
+        * This may of course make the start overlap previous block,
+        * and if we hit the offset 0 limit then the next block
+        * can still overlap too.
+        */
+       if (!eof && gotp->br_startoff != NULLFILEOFF) {
+               if ((delay && gotp->br_startblock == HOLESTARTBLOCK) ||
+                   (!delay && gotp->br_startblock == DELAYSTARTBLOCK))
+                       nexto = gotp->br_startoff + gotp->br_blockcount;
+               else
+                       nexto = gotp->br_startoff;
+       } else
+               nexto = NULLFILEOFF;
+       if (!eof &&
+           align_off + align_alen != orig_end &&
+           align_off + align_alen > nexto)
+               align_off = nexto > align_alen ? nexto - align_alen : 0;
+       /*
+        * If we're now overlapping the next or previous extent that
+        * means we can't fit an extsz piece in this hole.  Just move
+        * the start forward to the first valid spot and set
+        * the length so we hit the end.
+        */
+       if (align_off != orig_off && align_off < prevo)
+               align_off = prevo;
+       if (align_off + align_alen != orig_end &&
+           align_off + align_alen > nexto &&
+           nexto != NULLFILEOFF) {
+               ASSERT(nexto > prevo);
+               align_alen = nexto - align_off;
+       }
+
+       /*
+        * If realtime, and the result isn't a multiple of the realtime
+        * extent size we need to remove blocks until it is.
+        */
+       if (rt && (temp = (align_alen % mp->m_sb.sb_rextsize))) {
+               /*
+                * We're not covering the original request, or
+                * we won't be able to once we fix the length.
+                */
+               if (orig_off < align_off ||
+                   orig_end > align_off + align_alen ||
+                   align_alen - temp < orig_alen)
+                       return XFS_ERROR(EINVAL);
+               /*
+                * Try to fix it by moving the start up.
+                */
+               if (align_off + temp <= orig_off) {
+                       align_alen -= temp;
+                       align_off += temp;
+               }
+               /*
+                * Try to fix it by moving the end in.
+                */
+               else if (align_off + align_alen - temp >= orig_end)
+                       align_alen -= temp;
+               /*
+                * Set the start to the minimum then trim the length.
+                */
+               else {
+                       align_alen -= orig_off - align_off;
+                       align_off = orig_off;
+                       align_alen -= align_alen % mp->m_sb.sb_rextsize;
+               }
+               /*
+                * Result doesn't cover the request, fail it.
+                */
+               if (orig_off < align_off || orig_end > align_off + align_alen)
+                       return XFS_ERROR(EINVAL);
+       } else {
+               ASSERT(orig_off >= align_off);
+               ASSERT(orig_end <= align_off + align_alen);
+       }
+
+#ifdef DEBUG
+       if (!eof && gotp->br_startoff != NULLFILEOFF)
+               ASSERT(align_off + align_alen <= gotp->br_startoff);
+       if (prevp->br_startoff != NULLFILEOFF)
+               ASSERT(align_off >= prevp->br_startoff + prevp->br_blockcount);
+#endif
+
+       *lenp = align_alen;
+       *offp = align_off;
+       return 0;
+}
+
 #define XFS_ALLOC_GAP_UNITS    4
 
 /*
  * xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
  * It figures out where to ask the underlying allocator to put the new extent.
  */
-STATIC int                             /* error */
+STATIC int
 xfs_bmap_alloc(
        xfs_bmalloca_t  *ap)            /* bmap alloc argument struct */
 {
@@ -2157,10 +2326,10 @@ xfs_bmap_alloc(
        xfs_mount_t     *mp;            /* mount point structure */
        int             nullfb;         /* true if ap->firstblock isn't set */
        int             rt;             /* true if inode is realtime */
-#ifdef __KERNEL__
-       xfs_extlen_t    prod=0;         /* product factor for allocators */
-       xfs_extlen_t    ralen=0;        /* realtime allocation length */
-#endif
+       xfs_extlen_t    prod = 0;       /* product factor for allocators */
+       xfs_extlen_t    ralen = 0;      /* realtime allocation length */
+       xfs_extlen_t    align;          /* minimum allocation alignment */
+       xfs_rtblock_t   rtx;
 
 #define        ISVALID(x,y)    \
        (rt ? \
@@ -2176,125 +2345,25 @@ xfs_bmap_alloc(
        nullfb = ap->firstblock == NULLFSBLOCK;
        rt = XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata;
        fb_agno = nullfb ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, ap->firstblock);
-#ifdef __KERNEL__
        if (rt) {
-               xfs_extlen_t    extsz;          /* file extent size for rt */
-               xfs_fileoff_t   nexto;          /* next file offset */
-               xfs_extlen_t    orig_alen;      /* original ap->alen */
-               xfs_fileoff_t   orig_end;       /* original off+len */
-               xfs_fileoff_t   orig_off;       /* original ap->off */
-               xfs_extlen_t    mod_off;        /* modulus calculations */
-               xfs_fileoff_t   prevo;          /* previous file offset */
-               xfs_rtblock_t   rtx;            /* realtime extent number */
-               xfs_extlen_t    temp;           /* temp for rt calculations */
-
-               /*
-                * Set prod to match the realtime extent size.
-                */
-               if (!(extsz = ap->ip->i_d.di_extsize))
-                       extsz = mp->m_sb.sb_rextsize;
-               prod = extsz / mp->m_sb.sb_rextsize;
-               orig_off = ap->off;
-               orig_alen = ap->alen;
-               orig_end = orig_off + orig_alen;
-               /*
-                * If the file offset is unaligned vs. the extent size
-                * we need to align it.  This will be possible unless
-                * the file was previously written with a kernel that didn't
-                * perform this alignment.
-                */
-               mod_off = do_mod(orig_off, extsz);
-               if (mod_off) {
-                       ap->alen += mod_off;
-                       ap->off -= mod_off;
-               }
-               /*
-                * Same adjustment for the end of the requested area.
-                */
-               if ((temp = (ap->alen % extsz)))
-                       ap->alen += extsz - temp;
-               /*
-                * If the previous block overlaps with this proposed allocation
-                * then move the start forward without adjusting the length.
-                */
-               prevo =
-                       ap->prevp->br_startoff == NULLFILEOFF ?
-                               0 :
-                               (ap->prevp->br_startoff +
-                                ap->prevp->br_blockcount);
-               if (ap->off != orig_off && ap->off < prevo)
-                       ap->off = prevo;
-               /*
-                * If the next block overlaps with this proposed allocation
-                * then move the start back without adjusting the length,
-                * but not before offset 0.
-                * This may of course make the start overlap previous block,
-                * and if we hit the offset 0 limit then the next block
-                * can still overlap too.
-                */
-               nexto = (ap->eof || ap->gotp->br_startoff == NULLFILEOFF) ?
-                       NULLFILEOFF : ap->gotp->br_startoff;
-               if (!ap->eof &&
-                   ap->off + ap->alen != orig_end &&
-                   ap->off + ap->alen > nexto)
-                       ap->off = nexto > ap->alen ? nexto - ap->alen : 0;
-               /*
-                * If we're now overlapping the next or previous extent that
-                * means we can't fit an extsz piece in this hole.  Just move
-                * the start forward to the first valid spot and set
-                * the length so we hit the end.
-                */
-               if ((ap->off != orig_off && ap->off < prevo) ||
-                   (ap->off + ap->alen != orig_end &&
-                    ap->off + ap->alen > nexto)) {
-                       ap->off = prevo;
-                       ap->alen = nexto - prevo;
-               }
-               /*
-                * If the result isn't a multiple of rtextents we need to
-                * remove blocks until it is.
-                */
-               if ((temp = (ap->alen % mp->m_sb.sb_rextsize))) {
-                       /*
-                        * We're not covering the original request, or
-                        * we won't be able to once we fix the length.
-                        */
-                       if (orig_off < ap->off ||
-                           orig_end > ap->off + ap->alen ||
-                           ap->alen - temp < orig_alen)
-                               return XFS_ERROR(EINVAL);
-                       /*
-                        * Try to fix it by moving the start up.
-                        */
-                       if (ap->off + temp <= orig_off) {
-                               ap->alen -= temp;
-                               ap->off += temp;
-                       }
-                       /*
-                        * Try to fix it by moving the end in.
-                        */
-                       else if (ap->off + ap->alen - temp >= orig_end)
-                               ap->alen -= temp;
-                       /*
-                        * Set the start to the minimum then trim the length.
-                        */
-                       else {
-                               ap->alen -= orig_off - ap->off;
-                               ap->off = orig_off;
-                               ap->alen -= ap->alen % mp->m_sb.sb_rextsize;
-                       }
-                       /*
-                        * Result doesn't cover the request, fail it.
-                        */
-                       if (orig_off < ap->off || orig_end > ap->off + ap->alen)
-                               return XFS_ERROR(EINVAL);
-               }
+               align = ap->ip->i_d.di_extsize ?
+                       ap->ip->i_d.di_extsize : mp->m_sb.sb_rextsize;
+               /* Set prod to match the extent size */
+               prod = align / mp->m_sb.sb_rextsize;
+
+               error = xfs_bmap_extsize_align(mp, ap->gotp, ap->prevp,
+                                               align, rt, ap->eof, 0,
+                                               ap->conv, &ap->off, &ap->alen);
+               if (error)
+                       return error;
+               ASSERT(ap->alen);
                ASSERT(ap->alen % mp->m_sb.sb_rextsize == 0);
+
                /*
                 * If the offset & length are not perfectly aligned
                 * then kill prod, it will just get us in trouble.
                 */
-               if (do_mod(ap->off, extsz) || ap->alen % extsz)
+               if (do_mod(ap->off, align) || ap->alen % align)
                        prod = 1;
                /*
                 * Set ralen to be the actual requested length in rtextents.
@@ -2320,15 +2389,24 @@ xfs_bmap_alloc(
                        ap->rval = rtx * mp->m_sb.sb_rextsize;
                } else
                        ap->rval = 0;
+       } else {
+               align = (ap->userdata && ap->ip->i_d.di_extsize &&
+                       (ap->ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)) ?
+                       ap->ip->i_d.di_extsize : 0;
+               if (unlikely(align)) {
+                       error = xfs_bmap_extsize_align(mp, ap->gotp, ap->prevp,
+                                                       align, rt,
+                                                       ap->eof, 0, ap->conv,
+                                                       &ap->off, &ap->alen);
+                       ASSERT(!error);
+                       ASSERT(ap->alen);
+               }
+               if (nullfb)
+                       ap->rval = XFS_INO_TO_FSB(mp, ap->ip->i_ino);
+               else
+                       ap->rval = ap->firstblock;
        }
-#else
-       if (rt)
-               ap->rval = 0;
-#endif /* __KERNEL__ */
-       else if (nullfb)
-               ap->rval = XFS_INO_TO_FSB(mp, ap->ip->i_ino);
-       else
-               ap->rval = ap->firstblock;
+
        /*
         * If allocating at eof, and there's a previous real block,
         * try to use it's last block as our starting point.
@@ -2592,11 +2670,12 @@ xfs_bmap_alloc(
                        args.total = ap->total;
                        args.minlen = ap->minlen;
                }
-               if (ap->ip->i_d.di_extsize) {
+               if (unlikely(ap->userdata && ap->ip->i_d.di_extsize &&
+                           (ap->ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE))) {
                        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 {
@@ -2757,8 +2836,8 @@ xfs_bmap_btree_to_extents(
        ASSERT(ifp->if_flags & XFS_IFEXTENTS);
        ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE);
        rblock = ifp->if_broot;
-       ASSERT(INT_GET(rblock->bb_level, ARCH_CONVERT) == 1);
-       ASSERT(INT_GET(rblock->bb_numrecs, ARCH_CONVERT) == 1);
+       ASSERT(be16_to_cpu(rblock->bb_level) == 1);
+       ASSERT(be16_to_cpu(rblock->bb_numrecs) == 1);
        ASSERT(XFS_BMAP_BROOT_MAXRECS(ifp->if_broot_bytes) == 1);
        mp = ip->i_mount;
        pp = XFS_BMAP_BROOT_PTR_ADDR(rblock, 1, ifp->if_broot_bytes);
@@ -3201,11 +3280,11 @@ xfs_bmap_extents_to_btree(
         * Fill in the root.
         */
        block = ifp->if_broot;
-       INT_SET(block->bb_magic, ARCH_CONVERT, XFS_BMAP_MAGIC);
-       INT_SET(block->bb_level, ARCH_CONVERT, 1);
-       INT_SET(block->bb_numrecs, ARCH_CONVERT, 1);
-       INT_SET(block->bb_leftsib, ARCH_CONVERT, NULLDFSBNO);
-       INT_SET(block->bb_rightsib, ARCH_CONVERT, NULLDFSBNO);
+       block->bb_magic = cpu_to_be32(XFS_BMAP_MAGIC);
+       block->bb_level = cpu_to_be16(1);
+       block->bb_numrecs = cpu_to_be16(1);
+       block->bb_leftsib = cpu_to_be64(NULLDFSBNO);
+       block->bb_rightsib = cpu_to_be64(NULLDFSBNO);
        /*
         * Need a cursor.  Can't allocate until bb_level is filled in.
         */
@@ -3258,10 +3337,10 @@ xfs_bmap_extents_to_btree(
         * Fill in the child block.
         */
        ablock = XFS_BUF_TO_BMBT_BLOCK(abp);
-       INT_SET(ablock->bb_magic, ARCH_CONVERT, XFS_BMAP_MAGIC);
+       ablock->bb_magic = cpu_to_be32(XFS_BMAP_MAGIC);
        ablock->bb_level = 0;
-       INT_SET(ablock->bb_leftsib, ARCH_CONVERT, NULLDFSBNO);
-       INT_SET(ablock->bb_rightsib, ARCH_CONVERT, NULLDFSBNO);
+       ablock->bb_leftsib = cpu_to_be64(NULLDFSBNO);
+       ablock->bb_rightsib = cpu_to_be64(NULLDFSBNO);
        arp = XFS_BMAP_REC_IADDR(ablock, 1, cur);
        nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
        for (ep = ifp->if_u1.if_extents, cnt = i = 0; i < nextents; i++, ep++) {
@@ -3271,8 +3350,8 @@ xfs_bmap_extents_to_btree(
                        arp++; cnt++;
                }
        }
-       INT_SET(ablock->bb_numrecs, ARCH_CONVERT, cnt);
-       ASSERT(INT_GET(ablock->bb_numrecs, ARCH_CONVERT) == XFS_IFORK_NEXTENTS(ip, whichfork));
+       ASSERT(cnt == XFS_IFORK_NEXTENTS(ip, whichfork));
+       ablock->bb_numrecs = cpu_to_be16(cnt);
        /*
         * Fill in the root key and pointer.
         */
@@ -3286,7 +3365,7 @@ xfs_bmap_extents_to_btree(
         * the root is at the right level.
         */
        xfs_bmbt_log_block(cur, abp, XFS_BB_ALL_BITS);
-       xfs_bmbt_log_recs(cur, abp, 1, INT_GET(ablock->bb_numrecs, ARCH_CONVERT));
+       xfs_bmbt_log_recs(cur, abp, 1, be16_to_cpu(ablock->bb_numrecs));
        ASSERT(*curp == NULL);
        *curp = cur;
        *logflagsp = XFS_ILOG_CORE | XFS_ILOG_FBROOT(whichfork);
@@ -3574,14 +3653,16 @@ xfs_bmap_search_extents(
 
        ep = xfs_bmap_do_search_extents(base, lastx, nextents, bno, eofp,
                                          lastxp, gotp, prevp);
-       rt = ip->i_d.di_flags & XFS_DIFLAG_REALTIME;
-       if(!rt && !gotp->br_startblock && (*lastxp != NULLEXTNUM)) {
+       rt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip);
+       if (unlikely(!rt && !gotp->br_startblock && (*lastxp != NULLEXTNUM))) {
                 cmn_err(CE_PANIC,"Access to block zero: fs: <%s> inode: %lld "
                        "start_block : %llx start_off : %llx blkcnt : %llx "
                        "extent-state : %x \n",
-                       (ip->i_mount)->m_fsname,(long long)ip->i_ino,
-                       gotp->br_startblock, gotp->br_startoff,
-                       gotp->br_blockcount,gotp->br_state);
+                       (ip->i_mount)->m_fsname, (long long)ip->i_ino,
+                       (unsigned long long)gotp->br_startblock,
+                       (unsigned long long)gotp->br_startoff,
+                       (unsigned long long)gotp->br_blockcount,
+                       gotp->br_state);
         }
         return ep;
 }
@@ -3869,7 +3950,7 @@ xfs_bmap_add_attrfork(
                ip->i_d.di_forkoff = xfs_attr_shortform_bytesfit(ip, size);
                if (!ip->i_d.di_forkoff)
                        ip->i_d.di_forkoff = mp->m_attroffset >> 3;
-               else if (!(mp->m_flags & XFS_MOUNT_COMPAT_ATTR))
+               else if (mp->m_flags & XFS_MOUNT_ATTR2)
                        version = 2;
                break;
        default:
@@ -4017,13 +4098,13 @@ xfs_bmap_compute_maxlevels(
         */
        if (whichfork == XFS_DATA_FORK) {
                maxleafents = MAXEXTNUM;
-               sz = (mp->m_flags & XFS_MOUNT_COMPAT_ATTR) ?
-                       mp->m_attroffset : XFS_BMDR_SPACE_CALC(MINDBTPTRS);
+               sz = (mp->m_flags & XFS_MOUNT_ATTR2) ?
+                       XFS_BMDR_SPACE_CALC(MINDBTPTRS) : mp->m_attroffset;
        } else {
                maxleafents = MAXAEXTNUM;
-               sz = (mp->m_flags & XFS_MOUNT_COMPAT_ATTR) ?
-                       mp->m_sb.sb_inodesize - mp->m_attroffset :
-                       XFS_BMDR_SPACE_CALC(MINABTPTRS);
+               sz = (mp->m_flags & XFS_MOUNT_ATTR2) ?
+                       XFS_BMDR_SPACE_CALC(MINABTPTRS) :
+                       mp->m_sb.sb_inodesize - mp->m_attroffset;
        }
        maxrootrecs = (int)XFS_BTREE_BLOCK_MAXRECS(sz, xfs_bmdr, 0);
        minleafrecs = mp->m_bmap_dmnr[0];
@@ -4365,8 +4446,8 @@ xfs_bmap_read_extents(
        /*
         * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
         */
-       ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
-       level = INT_GET(block->bb_level, ARCH_CONVERT);
+       level = be16_to_cpu(block->bb_level);
+       ASSERT(level > 0);
        pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
        ASSERT(INT_GET(*pp, ARCH_CONVERT) != NULLDFSBNO);
        ASSERT(XFS_FSB_TO_AGNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agcount);
@@ -4409,11 +4490,11 @@ xfs_bmap_read_extents(
                xfs_extnum_t    num_recs;
 
 
-               num_recs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+               num_recs = be16_to_cpu(block->bb_numrecs);
                if (unlikely(i + num_recs > room)) {
                        ASSERT(i + num_recs <= room);
-                       xfs_fs_cmn_err(CE_WARN, ip->i_mount,
-                               "corrupt dinode %Lu, (btree extents).  Unmount and run xfs_repair.",
+                       xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount,
+                               "corrupt dinode %Lu, (btree extents).",
                                (unsigned long long) ip->i_ino);
                        XFS_ERROR_REPORT("xfs_bmap_read_extents(1)",
                                         XFS_ERRLEVEL_LOW,
@@ -4426,7 +4507,7 @@ xfs_bmap_read_extents(
                /*
                 * Read-ahead the next leaf block, if any.
                 */
-               nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+               nextbno = be64_to_cpu(block->bb_rightsib);
                if (nextbno != NULLFSBLOCK)
                        xfs_btree_reada_bufl(mp, nextbno, 1);
                /*
@@ -4584,6 +4665,7 @@ xfs_bmapi(
        char            contig;         /* allocation must be one extent */
        char            delay;          /* this request is for delayed alloc */
        char            exact;          /* don't do all of wasdelayed extent */
+       char            convert;        /* unwritten extent I/O completion */
        xfs_bmbt_rec_t  *ep;            /* extent list entry pointer */
        int             error;          /* error return */
        xfs_bmbt_irec_t got;            /* current extent list record */
@@ -4637,7 +4719,7 @@ xfs_bmapi(
        }
        if (XFS_FORCED_SHUTDOWN(mp))
                return XFS_ERROR(EIO);
-       rt = XFS_IS_REALTIME_INODE(ip);
+       rt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip);
        ifp = XFS_IFORK_PTR(ip, whichfork);
        ASSERT(ifp->if_ext_max ==
               XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
@@ -4648,6 +4730,7 @@ xfs_bmapi(
        delay = (flags & XFS_BMAPI_DELAY) != 0;
        trim = (flags & XFS_BMAPI_ENTIRE) == 0;
        userdata = (flags & XFS_BMAPI_METADATA) == 0;
+       convert = (flags & XFS_BMAPI_CONVERT) != 0;
        exact = (flags & XFS_BMAPI_EXACT) != 0;
        rsvd = (flags & XFS_BMAPI_RSVBLOCKS) != 0;
        contig = (flags & XFS_BMAPI_CONTIG) != 0;
@@ -4683,7 +4766,7 @@ xfs_bmapi(
        }
        if (wr && *firstblock == NULLFSBLOCK) {
                if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE)
-                       minleft = INT_GET(ifp->if_broot->bb_level, ARCH_CONVERT) + 1;
+                       minleft = be16_to_cpu(ifp->if_broot->bb_level) + 1;
                else
                        minleft = 1;
        } else
@@ -4742,16 +4825,26 @@ xfs_bmapi(
                        }
                        minlen = contig ? alen : 1;
                        if (delay) {
-                               xfs_extlen_t    extsz = 0;
+                               xfs_extlen_t    extsz;
 
                                /* Figure out the extent size, adjust alen */
                                if (rt) {
                                        if (!(extsz = ip->i_d.di_extsize))
                                                extsz = mp->m_sb.sb_rextsize;
-                                       alen = roundup(alen, extsz);
-                                       extsz = alen / mp->m_sb.sb_rextsize;
+                               } else {
+                                       extsz = ip->i_d.di_extsize;
+                               }
+                               if (extsz) {
+                                       error = xfs_bmap_extsize_align(mp,
+                                                       &got, &prev, extsz,
+                                                       rt, eof, delay, convert,
+                                                       &aoff, &alen);
+                                       ASSERT(!error);
                                }
 
+                               if (rt)
+                                       extsz = alen / mp->m_sb.sb_rextsize;
+
                                /*
                                 * Make a transaction-less quota reservation for
                                 * delayed allocation blocks. This number gets
@@ -4779,32 +4872,33 @@ xfs_bmapi(
                                        xfs_bmap_worst_indlen(ip, alen);
                                ASSERT(indlen > 0);
 
-                               if (rt)
+                               if (rt) {
                                        error = xfs_mod_incore_sb(mp,
                                                        XFS_SBS_FREXTENTS,
                                                        -(extsz), rsvd);
-                               else
+                               } else {
                                        error = xfs_mod_incore_sb(mp,
                                                        XFS_SBS_FDBLOCKS,
                                                        -(alen), rsvd);
+                               }
                                if (!error) {
                                        error = xfs_mod_incore_sb(mp,
                                                        XFS_SBS_FDBLOCKS,
                                                        -(indlen), rsvd);
-                                       if (error && rt) {
-                                               xfs_mod_incore_sb(ip->i_mount,
+                                       if (error && rt)
+                                               xfs_mod_incore_sb(mp,
                                                        XFS_SBS_FREXTENTS,
                                                        extsz, rsvd);
-                                       } else if (error) {
-                                               xfs_mod_incore_sb(ip->i_mount,
+                                       else if (error)
+                                               xfs_mod_incore_sb(mp,
                                                        XFS_SBS_FDBLOCKS,
                                                        alen, rsvd);
-                                       }
                                }
 
                                if (error) {
-                                       if (XFS_IS_QUOTA_ON(ip->i_mount))
+                                       if (XFS_IS_QUOTA_ON(mp))
                                                /* unreserve the blocks now */
+                                               (void)
                                                XFS_TRANS_UNRESERVE_QUOTA_NBLKS(
                                                        mp, NULL, ip,
                                                        (long)alen, 0, rt ?
@@ -4843,6 +4937,7 @@ xfs_bmapi(
                                bma.firstblock = *firstblock;
                                bma.alen = alen;
                                bma.off = aoff;
+                               bma.conv = convert;
                                bma.wasdel = wasdelay;
                                bma.minlen = minlen;
                                bma.low = flist->xbf_low;
@@ -5264,8 +5359,7 @@ xfs_bunmapi(
                return 0;
        }
        XFS_STATS_INC(xs_blk_unmap);
-       isrt = (whichfork == XFS_DATA_FORK) &&
-              (ip->i_d.di_flags & XFS_DIFLAG_REALTIME);
+       isrt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip);
        start = bno;
        bno = start + len - 1;
        ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
@@ -5437,7 +5531,7 @@ xfs_bunmapi(
                }
                if (wasdel) {
                        ASSERT(STARTBLOCKVAL(del.br_startblock) > 0);
-                       /* Update realtim/data freespace, unreserve quota */
+                       /* Update realtime/data freespace, unreserve quota */
                        if (isrt) {
                                xfs_filblks_t rtexts;
 
@@ -5445,14 +5539,14 @@ xfs_bunmapi(
                                do_div(rtexts, mp->m_sb.sb_rextsize);
                                xfs_mod_incore_sb(mp, XFS_SBS_FREXTENTS,
                                                (int)rtexts, rsvd);
-                               XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip,
-                                       -((long)del.br_blockcount), 0,
+                               (void)XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,
+                                       NULL, ip, -((long)del.br_blockcount), 0,
                                        XFS_QMOPT_RES_RTBLKS);
                        } else {
                                xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
                                                (int)del.br_blockcount, rsvd);
-                               XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip,
-                                       -((long)del.br_blockcount), 0,
+                               (void)XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,
+                                       NULL, ip, -((long)del.br_blockcount), 0,
                                        XFS_QMOPT_RES_REGBLKS);
                        }
                        ip->i_delayed_blks -= del.br_blockcount;
@@ -5646,7 +5740,9 @@ xfs_getbmap(
                   ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
                return XFS_ERROR(EINVAL);
        if (whichfork == XFS_DATA_FORK) {
-               if (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC) {
+               if ((ip->i_d.di_extsize && (ip->i_d.di_flags &
+                               (XFS_DIFLAG_REALTIME|XFS_DIFLAG_EXTSIZE))) ||
+                   ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)){
                        prealloced = 1;
                        fixlen = XFS_MAXIOFFSET(mp);
                } else {
@@ -5961,10 +6057,10 @@ xfs_check_block(
        xfs_bmbt_ptr_t          *pp, *thispa;   /* pointer to block address */
        xfs_bmbt_key_t          *prevp, *keyp;
 
-       ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
+       ASSERT(be16_to_cpu(block->bb_level) > 0);
 
        prevp = NULL;
-       for( i = 1; i <= INT_GET(block->bb_numrecs, ARCH_CONVERT);i++) {
+       for( i = 1; i <= be16_to_cpu(block->bb_numrecs); i++) {
                dmxr = mp->m_bmap_dmxr[0];
 
                if (root) {
@@ -5989,7 +6085,7 @@ xfs_check_block(
                        pp = XFS_BTREE_PTR_ADDR(mp->m_sb.sb_blocksize,
                                xfs_bmbt, block, i, dmxr);
                }
-               for (j = i+1; j <= INT_GET(block->bb_numrecs, ARCH_CONVERT); j++) {
+               for (j = i+1; j <= be16_to_cpu(block->bb_numrecs); j++) {
                        if (root) {
                                thispa = XFS_BMAP_BROOT_PTR_ADDR(block, j, sz);
                        } else {
@@ -6042,8 +6138,8 @@ xfs_bmap_check_leaf_extents(
        /*
         * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
         */
-       ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
-       level = INT_GET(block->bb_level, ARCH_CONVERT);
+       level = be16_to_cpu(block->bb_level);
+       ASSERT(level > 0);
        xfs_check_block(block, mp, 1, ifp->if_broot_bytes);
        pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
        ASSERT(INT_GET(*pp, ARCH_CONVERT) != NULLDFSBNO);
@@ -6103,13 +6199,13 @@ xfs_bmap_check_leaf_extents(
                xfs_extnum_t    num_recs;
 
 
-               num_recs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+               num_recs = be16_to_cpu(block->bb_numrecs);
 
                /*
                 * Read-ahead the next leaf block, if any.
                 */
 
-               nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+               nextbno = be64_to_cpu(block->bb_rightsib);
 
                /*
                 * Check all the extents to make sure they are OK.
@@ -6206,8 +6302,8 @@ xfs_bmap_count_blocks(
         * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
         */
        block = ifp->if_broot;
-       ASSERT(INT_GET(block->bb_level, ARCH_CONVERT) > 0);
-       level = INT_GET(block->bb_level, ARCH_CONVERT);
+       level = be16_to_cpu(block->bb_level);
+       ASSERT(level > 0);
        pp = XFS_BMAP_BROOT_PTR_ADDR(block, 1, ifp->if_broot_bytes);
        ASSERT(INT_GET(*pp, ARCH_CONVERT) != NULLDFSBNO);
        ASSERT(XFS_FSB_TO_AGNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agcount);
@@ -6252,14 +6348,14 @@ xfs_bmap_count_tree(
 
        if (--level) {
                /* Not at node above leafs, count this level of nodes */
-               nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
+               nextbno = be64_to_cpu(block->bb_rightsib);
                while (nextbno != NULLFSBLOCK) {
                        if ((error = xfs_btree_read_bufl(mp, tp, nextbno,
                                0, &nbp, XFS_BMAP_BTREE_REF)))
                                return error;
                        *count += 1;
                        nextblock = XFS_BUF_TO_BMBT_BLOCK(nbp);
-                       nextbno = INT_GET(nextblock->bb_rightsib, ARCH_CONVERT);
+                       nextbno = be64_to_cpu(nextblock->bb_rightsib);
                        xfs_trans_brelse(tp, nbp);
                }
 
@@ -6278,11 +6374,11 @@ xfs_bmap_count_tree(
        } else {
                /* count all level 1 nodes and their leaves */
                for (;;) {
-                       nextbno = INT_GET(block->bb_rightsib, ARCH_CONVERT);
-                       numrecs = INT_GET(block->bb_numrecs, ARCH_CONVERT);
+                       nextbno = be64_to_cpu(block->bb_rightsib);
+                       numrecs = be16_to_cpu(block->bb_numrecs);
                        frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize,
                                xfs_bmbt, block, 1, mp->m_bmap_dmxr[0]);
-                       if (unlikely(xfs_bmap_count_leaves(frp, numrecs, count) < 0)) {
+                       if (unlikely(xfs_bmap_disk_count_leaves(frp, numrecs, count) < 0)) {
                                xfs_trans_brelse(tp, bp);
                                XFS_ERROR_REPORT("xfs_bmap_count_tree(2)",
                                                 XFS_ERRLEVEL_LOW, mp);
@@ -6313,6 +6409,22 @@ xfs_bmap_count_leaves(
 {
        int             b;
 
+       for ( b = 1; b <= numrecs; b++, frp++)
+               *count += xfs_bmbt_get_blockcount(frp);
+       return 0;
+}
+
+/*
+ * Count leaf blocks given a pointer to an extent list originally in btree format.
+ */
+int
+xfs_bmap_disk_count_leaves(
+       xfs_bmbt_rec_t          *frp,
+       int                     numrecs,
+       int                     *count)
+{
+       int             b;
+
        for ( b = 1; b <= numrecs; b++, frp++)
                *count += xfs_bmbt_disk_get_blockcount(frp);
        return 0;