Moved signal handling and rescheduling from userret() to ast() so that

they aren't in the usual path of execution for syscalls and traps.
The main complication for this is that we have to set flags to control
ast() everywhere that changes the signal mask.

Avoid locking in userret() in most of the remaining cases.

Submitted by:	luoqi (first part only, long ago, reorganized by me)
Reminded by:	dillon

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/coda/coda_psdev.c b/sys/coda/coda_psdev.c
index c2653ec..8ed4f22 100644
--- a/sys/coda/coda_psdev.c
+++ b/sys/coda/coda_psdev.c
@@ -602,6 +602,7 @@ coda_call(mntinfo, inSize, outSize, buffer)
 		}
 	} while (error && i++ < 128 && VC_OPEN(vcp));
 	p->p_sigmask = psig_omask;
+	signotify(p);
 	PROC_UNLOCK(p);
 #else
 	(void) tsleep(&vmp->vm_sleep, coda_call_sleep, "coda_call", 0);