From owner-cvs-all  Tue Aug  8 18:57:15 2000
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From: Tor Egge <tegge@FreeBSD.org>
Date: Tue, 8 Aug 2000 18:57:11 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/kern vfs_syscalls.c
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tegge       2000/08/08 18:57:11 PDT

  Modified files:
    sys/kern             vfs_syscalls.c 
  Log:
  Don't set flags on the mount structure before all permission checks have
  been done.
  
  Don't allow multiple mount operations with MNT_UPDATE at the same
  time on the same mount point.  When the first mount operation
  completed, MNT_UPDATE was cleared in the mount structure, causing
  the second to complete as if it was a no-update mount operation
  with the following bad side effects:
  
          - mount structure inserted multiple times onto the mountlist
          - vp->v_mountedhere incorrectly set, causing next namei
            operation walking into the mountpoint to crash with
            a locking against myself panic.
  
  Plug a vnode leak in case vinvalbuf fails.
  
  Revision  Changes    Path
  1.163     +20 -5     src/sys/kern/vfs_syscalls.c



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