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From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 12 Oct 2010 16:09:08 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_7
Subject: cvs commit: src/sys/net if_tap.c if_tun.c
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jhb         2010-10-12 16:09:08 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/net              if_tap.c if_tun.c 
  Log:
  SVN rev 213727 on 2010-10-12 16:09:08Z by jhb
  
  MFC 213028,213328:
  - Expand scope of tun/tap softc locks to cover more softc fields and
    driver-maintained ifnet fields (such as if_drv_flags).
  - Use soft locks as the mutex that protects each interface's knote list
    rather than using the global knote list lock.  Also, use the softc
    for kn_hook instead of the cdev.
  - Use mtx_sleep() instead of tsleep() when blocking in the read routines.
    This fixes a lost wakeup race.
  - Remove D_NEEDGIANT now that the cdevsw routines use the softc lock
    where locking is needed.
  - Lock IFQ when calculating the result for FIONREAD in tap(4).  tun(4)
    already did this.
  - Remove remaining spl calls.
  
  Revision   Changes    Path
  1.71.2.6   +63 -91    src/sys/net/if_tap.c
  1.163.2.3  +37 -53    src/sys/net/if_tun.c