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/kern/kern_synch.c | |
| 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/kern/kern_synch.c')
| -rw-r--r-- | sys/kern/kern_synch.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/kern/kern_synch.c b/sys/kern/kern_synch.c index d553842..e4bef85 100644 --- a/sys/kern/kern_synch.c +++ b/sys/kern/kern_synch.c @@ -718,7 +718,7 @@ restart: setrunqueue(td); maybe_resched(td); } else { -/* XXXKSE Wrong! */ td->td_state = TDS_RUNQ; + td->td_state = TDS_SWAPPED; p->p_sflag |= PS_SWAPINREQ; wakeup(&proc0); } @@ -765,7 +765,7 @@ restart: maybe_resched(td); break; } else { -/* XXXKSE Wrong */ td->td_state = TDS_RUNQ; + td->td_state = TDS_SWAPPED; p->p_sflag |= PS_SWAPINREQ; wakeup(&proc0); } @@ -919,6 +919,7 @@ setrunnable(struct thread *td) case 0: case TDS_RUNNING: case TDS_IWAIT: + case TDS_SWAPPED: default: printf("state is %d", td->td_state); panic("setrunnable(2)"); @@ -939,7 +940,7 @@ setrunnable(struct thread *td) updatepri(td); td->td_ksegrp->kg_slptime = 0; if ((p->p_sflag & PS_INMEM) == 0) { - td->td_state = TDS_RUNQ; /* XXXKSE not a good idea */ + td->td_state = TDS_SWAPPED; p->p_sflag |= PS_SWAPINREQ; wakeup(&proc0); } else { |
