diff options
| author | jeff <jeff@FreeBSD.org> | 2008-03-19 06:19:01 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2008-03-19 06:19:01 +0000 |
| commit | 46f09d5bc3f6480ce5db48b9d76f3e83299f588c (patch) | |
| tree | 720fece23c8482c35e341e275a0f4068ee43126f /sys/kern/kern_thr.c | |
| parent | f8600f40e7fcf241985d8a978c63889de0969bfb (diff) | |
| download | FreeBSD-src-46f09d5bc3f6480ce5db48b9d76f3e83299f588c.zip FreeBSD-src-46f09d5bc3f6480ce5db48b9d76f3e83299f588c.tar.gz | |
- Relax requirements for p_numthreads, p_threads, p_swtick, and p_nice from
requiring the per-process spinlock to only requiring the process lock.
- Reflect these changes in the proc.h documentation and consumers throughout
the kernel. This is a substantial reduction in locking cost for these
fields and was made possible by recent changes to threading support.
Diffstat (limited to 'sys/kern/kern_thr.c')
| -rw-r--r-- | sys/kern/kern_thr.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sys/kern/kern_thr.c b/sys/kern/kern_thr.c index 25bf8d1..3d410b5 100644 --- a/sys/kern/kern_thr.c +++ b/sys/kern/kern_thr.c @@ -229,14 +229,12 @@ create_thread(struct thread *td, mcontext_t *ctx, PROC_LOCK(td->td_proc); td->td_proc->p_flag |= P_HADTHREADS; newtd->td_sigmask = td->td_sigmask; - PROC_SLOCK(p); thread_link(newtd, p); bcopy(p->p_comm, newtd->td_name, sizeof(newtd->td_name)); thread_lock(td); /* let the scheduler know about these things. */ sched_fork_thread(td, newtd); thread_unlock(td); - PROC_SUNLOCK(p); PROC_UNLOCK(p); thread_lock(newtd); if (rtp != NULL) { |
