when host mcexec down, syscall is hung up

2014-12-04 11:17:29 +09:00
parent c1cf630a94
commit f1a86cfbd3
1 changed files with 4 additions and 0 deletions
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@ -185,11 +185,15 @@ long do_syscall(struct syscall_request *req, ihk_mc_user_context_t *ctx,
 	long rc;
 	int islock = 0;
 	unsigned long irqstate;
+	struct process *proc = cpu_local_var(current);

 	dkprintf("SC(%d)[%3d] sending syscall\n",
 	        ihk_mc_get_processor_id(),
 	        req->number);

+	if(proc->nohost) // host is down
+		return -EPIPE;
+
 	if(req->number == __NR_exit_group ||
 	   req->number == __NR_gettid ||
 	   req->number == __NR_kill){ // interrupt syscall