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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Fri, 28 Jan 2011 17:37:09 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/sys/kern uipc_syscalls.c
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kib         2011-01-28 17:37:09 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             uipc_syscalls.c 
  Log:
  SVN rev 218026 on 2011-01-28 17:37:09Z by kib
  
  If more than one thread allocated sf buffers for sendfile(2), and
  each of the threads needs more while current pool of the buffers is
  exhausted, then neither thread can make progress.
  
  Switch to nowait allocations after we got first buffer already.
  
  Reported by:    az
  Reviewed by:    alc (previous version)
  Tested by:      pho
  MFC after:      1 week
  
  Revision  Changes    Path
  1.303     +12 -5     src/sys/kern/uipc_syscalls.c