cvs commit: src/sys/kern kern_sig.c kern_thread.c

[Jeff Roberson]

jeff        2007-06-04 23:52:25 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_sig.c kern_thread.c 
  Log:
  Commit 4/14 of sched_lock decomposition.
   - Use thread_lock() rather than sched_lock for per-thread scheduling
     sychronization.
   - Use the per-process spinlock rather than the sched_lock for per-process
     scheduling synchronization.
   - Move some common code into thread_suspend_switch() to handle the
     mechanics of suspending a thread.  The locking here is incredibly
     convoluted and should be simplified.
  
  Tested by:      kris, current@
  Tested on:      i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc.
  Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)
  
  Revision  Changes    Path
  1.346     +66 -56    src/sys/kern/kern_sig.c
  1.247     +97 -73    src/sys/kern/kern_thread.c