1. 23 May, 2011 1 commit
    • David Teigland's avatar
      dlm: make plock operation killable · 901025d2
      David Teigland authored
      Allow processes blocked on plock requests to be interrupted
      when they are killed.  This leaves the problem of cleaning
      up the lock state in userspace.  This has three parts:
      1. Add a flag to unlock operations sent to userspace
      indicating the file is being closed.  Userspace will
      then look for and clear any waiting plock operations that
      were abandoned by an interrupted process.
      2. Queue an unlock-close operation (like in 1) to clean up
      userspace from an interrupted plock request.  This is needed
      because the vfs will not send a cleanup-unlock if it sees no
      locks on the file, which it won't if the interrupted operation
      was the only one.
      3. Do not use replies from userspace for unlock-close operations
      because they are unnecessary (they are just cleaning up for the
      process which did not make an unlock call).  This also simplifies
      the new unlock-close generated from point 2.
      Signed-off-by: David Teigland's avatarDavid Teigland <teigland@redhat.com>
  2. 30 Jan, 2009 1 commit
  3. 21 Apr, 2008 1 commit