From: Tomas Hruby <tom@minix3.org>
Date: Tue, 6 Apr 2010 11:18:04 +0000 (+0000)
Subject: RTS_SYS_LOCK and do_runctl()
X-Git-Tag: v3.1.7~179
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/named.html?a=commitdiff_plain;h=b0d37b81c416374000007a92d2e6f3a2570f9e90;p=minix.git

RTS_SYS_LOCK and do_runctl()

- No need for RTS_SYS_LOCK as there are no tasks anymore.
---

diff --git a/kernel/proc.h b/kernel/proc.h
index b4b38155a..a059ecf70 100644
--- a/kernel/proc.h
+++ b/kernel/proc.h
@@ -128,7 +128,6 @@ struct proc {
 #define RTS_PAGEFAULT	0x400	/* process has unhandled pagefault */
 #define RTS_VMREQUEST	0x800	/* originator of vm memory request */
 #define RTS_VMREQTARGET	0x1000	/* target of vm memory request */
-#define RTS_SYS_LOCK	0x2000	/* temporary process lock flag for systask */
 #define RTS_PREEMPTED	0x4000	/* this process was preempted by a higher
 				   priority process and we should pick a new one
 				   to run. Processes with this flag should be
diff --git a/kernel/system/do_runctl.c b/kernel/system/do_runctl.c
index f5b243f63..a724d01b4 100644
--- a/kernel/system/do_runctl.c
+++ b/kernel/system/do_runctl.c
@@ -22,7 +22,7 @@ PUBLIC int do_runctl(struct proc * caller, message * m_ptr)
  * of RTS_PROC_STOP, and send a SIGSNDELAY signal later when the process is done
  * sending (ending the delay). Used by PM for safe signal delivery.
  */
-  int proc_nr, action, flags, delayed;
+  int proc_nr, action, flags;
   register struct proc *rp;
 
   /* Extract the message parameters and do sanity checking. */
@@ -39,17 +39,13 @@ PUBLIC int do_runctl(struct proc * caller, message * m_ptr)
    * Note that asynchronous messages are not covered: a process using SENDA
    * should not also install signal handlers *and* expect POSIX compliance.
    */
-  if (action == RC_STOP && (flags & RC_DELAY)) {
-	RTS_SET(rp, RTS_SYS_LOCK);
 
+  if (action == RC_STOP && (flags & RC_DELAY)) {
 	if (RTS_ISSET(rp, RTS_SENDING) || (rp->p_misc_flags & MF_SC_DEFER))
 		rp->p_misc_flags |= MF_SIG_DELAY;
 
-	delayed = (rp->p_misc_flags & MF_SIG_DELAY);
-
-	RTS_UNSET(rp, RTS_SYS_LOCK);
-
-	if (delayed) return(EBUSY);
+	if (rp->p_misc_flags & MF_SIG_DELAY)
+		return (EBUSY);
   }
 
   /* Either set or clear the stop flag. */