mcexec_syscall(): avoid calling task_pid_nr_ns() in IRQ context

2016-12-26 20:43:17 +09:00
parent 16e846e9b6
commit 6ad84a96a3
2 changed files with 4 additions and 1 deletions
--- a/executer/kernel/mcctrl/syscall.c
+++ b/executer/kernel/mcctrl/syscall.c
@ -326,6 +326,9 @@ retry_alloc:

 	/* Prepare per-thread wait queue head */
 	wqhln->task = current;
+	/* Save the TID explicitly, because mcexec_syscall(), where the request
+	 * will be matched, is in IRQ context and can't call task_pid_vnr() */
+	wqhln->rtid = task_pid_vnr(current);
 	wqhln->req = 0;
 	init_waitqueue_head(&wqhln->wq_syscall);