Author: kib
Date: Tue May  5 09:20:07 2009
New Revision: 191811
URL: http://svn.freebsd.org/changeset/base/191811

Log:
  MFC r190690:
  When removing or renaming snaphost, do not delve into request_cleanup().
  The later may need blocks from the underlying device that belongs
  to normal files, that should not be locked while snap lock is held.

Modified:
  stable/7/sys/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)
  stable/7/sys/dev/ath/ath_hal/   (props changed)
  stable/7/sys/dev/cxgb/   (props changed)
  stable/7/sys/ufs/ffs/ffs_softdep.c

Modified: stable/7/sys/ufs/ffs/ffs_softdep.c
==============================================================================
--- stable/7/sys/ufs/ffs/ffs_softdep.c  Tue May  5 09:16:57 2009        
(r191810)
+++ stable/7/sys/ufs/ffs/ffs_softdep.c  Tue May  5 09:20:07 2009        
(r191811)
@@ -3315,7 +3315,7 @@ newdirrem(bp, dp, ip, isrmdir, prevdirre
         * the number of freefile and freeblks structures.
         */
        ACQUIRE_LOCK(&lk);
-       if (num_dirrem > max_softdeps / 2)
+       if (!(ip->i_flags & SF_SNAPSHOT) && num_dirrem > max_softdeps / 2)
                (void) request_cleanup(ITOV(dp)->v_mount, FLUSH_REMOVE);
        num_dirrem += 1;
        FREE_LOCK(&lk);
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