Author: avg
Date: Mon Feb 17 16:41:45 2014
New Revision: 262084
URL: http://svnweb.freebsd.org/changeset/base/262084

Log:
  MFC r254077: MFV r254071: Fix a regression introduced by fix for Illumos bug 
#3834

Modified:
  stable/9/cddl/contrib/opensolaris/cmd/ztest/ztest.c
  stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c
Directory Properties:
  stable/9/cddl/contrib/opensolaris/   (props changed)
  stable/9/sys/   (props changed)
  stable/9/sys/cddl/contrib/opensolaris/   (props changed)

Modified: stable/9/cddl/contrib/opensolaris/cmd/ztest/ztest.c
==============================================================================
--- stable/9/cddl/contrib/opensolaris/cmd/ztest/ztest.c Mon Feb 17 16:33:42 
2014        (r262083)
+++ stable/9/cddl/contrib/opensolaris/cmd/ztest/ztest.c Mon Feb 17 16:41:45 
2014        (r262084)
@@ -3607,6 +3607,9 @@ ztest_dmu_read_write(ztest_ds_t *zd, uin
        else
                dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
 
+       /* This accounts for setting the checksum/compression. */
+       dmu_tx_hold_bonus(tx, bigobj);
+
        txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
        if (txg == 0) {
                umem_free(packbuf, packsize);

Modified: stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c
==============================================================================
--- stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c    Mon Feb 
17 16:33:42 2014        (r262083)
+++ stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c    Mon Feb 
17 16:41:45 2014        (r262084)
@@ -449,12 +449,12 @@ dmu_tx_count_free(dmu_tx_hold_t *txh, ui
                blkid = off >> dn->dn_datablkshift;
                nblks = (len + dn->dn_datablksz - 1) >> dn->dn_datablkshift;
 
-               if (blkid >= dn->dn_maxblkid) {
+               if (blkid > dn->dn_maxblkid) {
                        rw_exit(&dn->dn_struct_rwlock);
                        return;
                }
                if (blkid + nblks > dn->dn_maxblkid)
-                       nblks = dn->dn_maxblkid - blkid;
+                       nblks = dn->dn_maxblkid - blkid + 1;
 
        }
        l0span = nblks;    /* save for later use to calc level > 1 overhead */
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