diff options
| author | julian <julian@FreeBSD.org> | 2002-07-29 18:33:32 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 2002-07-29 18:33:32 +0000 |
| commit | 6216c4b163409794825c784e02317143975376f3 (patch) | |
| tree | fb17cadef050bebf8077e451640f625b2317869b /sys/fs/procfs | |
| parent | 9f0ddc464e0c402f25ea8ae47e53ae9dba1c60c6 (diff) | |
| download | FreeBSD-src-6216c4b163409794825c784e02317143975376f3.zip FreeBSD-src-6216c4b163409794825c784e02317143975376f3.tar.gz | |
Create a new thread state to describe threads that would be ready to run
except for the fact tha they are presently swapped out. Also add a process
flag to indicate that the process has started the struggle to swap
back in. This will be needed for the case where multiple threads
start the swapin action top a collision. Also add code to stop
a process fropm being swapped out if one of the threads in this
process is actually off running on another CPU.. that might hurt...
Submitted by: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>
Diffstat (limited to 'sys/fs/procfs')
| -rw-r--r-- | sys/fs/procfs/procfs_ctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/fs/procfs/procfs_ctl.c b/sys/fs/procfs/procfs_ctl.c index 15ed718..88ce6dd 100644 --- a/sys/fs/procfs/procfs_ctl.c +++ b/sys/fs/procfs/procfs_ctl.c @@ -144,7 +144,9 @@ procfs_control(struct thread *td, struct proc *p, int op) * Stop the target. */ p->p_flag |= P_TRACED; + mtx_lock_spin(&sched_lock); faultin(p); + mtx_unlock_spin(&sched_lock); p->p_xstat = 0; /* XXX ? */ if (p->p_pptr != td->td_proc) { p->p_oppid = p->p_pptr->p_pid; |
