[SSI] openssi/kernel/cluster/ssi/vproc rproc_cli_pproc.c, 1.28, 1.29 rproc_svr_pproc.c, 1.32, 1.33

Update of /cvsroot/ssic-linux/openssi/kernel/cluster/ssi/vproc
In directory sfp-cvsdas-3.v30.ch3.sourceforge.com:/tmp/cvs-serv12716/cluster/ssi/vproc

Modified Files:
      Tag: OPENSSI-FC
	rproc_cli_pproc.c rproc_svr_pproc.c 
Log Message:
common_data_load_msg, common_data_unload_msg: no longer acquire task_lock when reading/writing to Mosix fields. There is no race since OpenSSI modified balancing algorithm skips processes that are migrating.


Index: rproc_cli_pproc.c
===================================================================
RCS file: /cvsroot/ssic-linux/openssi/kernel/cluster/ssi/vproc/rproc_cli_pproc.c,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -d -r1.28 -r1.29
--- rproc_cli_pproc.c	9 Nov 2010 02:31:01 -0000	1.28
+++ rproc_cli_pproc.c	9 Nov 2010 02:44:02 -0000	1.29
@@ -670,16 +670,16 @@
 		t->node_context : this_node;
 #ifdef CONFIG_MOSIX_LL
 	/* load leveling information */
-	/* SSI_XXX: skipped task_rq_lock for mosix.dflags */
-	task_lock(t);
+	/* Skipped locking, DPAGEIN dflags is set */
 	comm_datap->comm_dflags = (t->mosix.dflags & ~DPAGEIN);
 	comm_datap->comm_stay = t->mosix.stay;
+	if (optype == RVP_MIGRATE) {
+		comm_datap->comm_last_consider = t->mm->last_consider;
+		comm_datap->comm_pages_i_bring = t->mm->pages_i_bring;
+		/* comm_datap->comm_last_mconsider = t->mm->last_mconsider; */
+	}
 	/* comm_datap->comm_pagetime = t->mosix.pagetime; */
-	comm_datap->comm_last_consider = t->mosix.last_consider;
-	/* comm_datap->comm_last_mconsider = t->mosix.last_mconsider; */
-	comm_datap->comm_pages_i_bring = t->mosix.pages_i_bring;
 	/* comm_datap->comm_dctime = t->mosix.dctime; */
-	task_unlock(t);
 #endif
 out:
 

Index: rproc_svr_pproc.c
===================================================================
RCS file: /cvsroot/ssic-linux/openssi/kernel/cluster/ssi/vproc/rproc_svr_pproc.c,v
retrieving revision 1.32
retrieving revision 1.33
diff -u -d -r1.32 -r1.33
--- rproc_svr_pproc.c	9 Nov 2010 02:31:01 -0000	1.32
+++ rproc_svr_pproc.c	9 Nov 2010 02:44:02 -0000	1.33
@@ -548,15 +548,15 @@
 	t->node_context = comm_datap->comm_node_context;
 
 #ifdef CONFIG_MOSIX_LL
-	task_lock(t);
 	t->mosix.dflags = comm_datap->comm_dflags;
 	t->mosix.stay = comm_datap->comm_stay;
+	if (optype == RVP_MIGRATE) {
+		t->mm->last_consider = comm_datap->comm_last_consider;
+		t->mm->last_mconsider = get_jiffies_64();
+		t->mm->pages_i_bring = comm_datap->comm_pages_i_bring;
+	}
 	/* t->mosix.pagetime = comm_datap->comm_pagetime; */
-	t->mosix.last_consider = comm_datap->comm_last_consider;
-	t->mosix.last_mconsider = get_jiffies_64();
-	t->mosix.pages_i_bring = comm_datap->comm_pages_i_bring;
 	/* t->mosix.dctime = comm_datap->comm_dctime; */
-	task_unlock(t);
 #endif
 out:
 	return error;


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