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From: Alexander Kabaev <kan@FreeBSD.org>
Date: Sun, 14 Aug 2005 18:10:05 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Cc: 
Subject: cvs commit: src/sys/kern vfs_lookup.c
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kan         2005-08-14 18:10:05 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_lookup.c 
  Log:
  Do not keep parent directory locked while calling VFS_ROOT to traverse mount
  points in lookup(). The lock can be dropped safely around VFS_ROOT because
  LOCKPARENT semantics with child and perent vnodes coming from different FSes
  does not really have any meaningful use. On the other hard, this prevents
  easily triggered deadlock on systems using automounter daemon.
  
  Revision  Changes    Path
  1.81      +2 -0      src/sys/kern/vfs_lookup.c