From owner-cvs-all  Fri Jul 13 13:50:51 2001
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From: Ian Dowse <iedowse@FreeBSD.org>
Date: Fri, 13 Jul 2001 13:50:38 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/ufs/ufs dirhash.h ufs_dirhash.c ufs_lookup.c
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iedowse     2001/07/13 13:50:38 PDT

  Modified files:
    sys/ufs/ufs          dirhash.h ufs_dirhash.c ufs_lookup.c 
  Log:
  Return a locked struct buf from ufsdirhash_lookup() to avoid one
  extra getblk/brelse sequence for each lookup. We already had this
  buf in ufsdirhash_lookup(), so there was no point in brelse'ing it
  only to have the caller immediately reaquire the same buffer.
  
  This should make the case of sequential lookups marginally faster;
  in my tests, sequential lookups with dirhash enabled are now only
  around 1% slower than without dirhash.
  
  Revision  Changes    Path
  1.2       +3 -2      src/sys/ufs/ufs/dirhash.h
  1.2       +5 -4      src/sys/ufs/ufs/ufs_dirhash.c
  1.51      +4 -6      src/sys/ufs/ufs/ufs_lookup.c


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