John Baldwin 8b94a0616d - Make sigonstack() a regular function instead of an inline and add a proc
lock assertion to it.
- SIGPENDING() no longer needs sched_lock, so only grab sched_lock to set
  the TDF_NEEDSIGCHK and TDF_ASTPENDING flags in signotify().
- Add a proc lock assertion to tdsigwakeup().
- Since we always set TDF_OLDMASK while holding the proc lock, the proc
  lock is sufficient protection to check its state in postsig() and we only
  need sched_lock when clearing the actual flag.
2003-04-18 20:59:05 +00:00
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