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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 15 Jan 2009 12:15:46 +0000 (UTC)
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Subject: cvs commit: src/sys/kern sysv_sem.c
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kib         2009-01-15 12:15:46 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             sysv_sem.c 
  Log:
  SVN rev 187298 on 2009-01-15 12:15:46Z by kib
  
  Lock the semaphore identifier lock during semaphore initialization to
  guarantee atomicity of the operation for other semaphore consumers.
  In particular, this should guard against access to the semaphore with
  not done or partially done MAC label assignment.
  
  Reviewed by:    rwatson
  MFC after:      1 month
  
  Revision  Changes    Path
  1.93      +4 -0      src/sys/kern/sysv_sem.c