These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / sparc / kernel / process_32.c

diff --git a/kernel/arch/sparc/kernel/process_32.c b/kernel/arch/sparc/kernel/process_32.c
index 50e7b62..c5113c7 100644 (file)
--- a/kernel/arch/sparc/kernel/process_32.c
+++ b/kernel/arch/sparc/kernel/process_32.c
@@ -333,11 +333,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
        childregs = (struct pt_regs *) (new_stack + STACKFRAME_SZ);
 
        /*
-        * A new process must start with interrupts closed in 2.5,
-        * because this is how Mingo's scheduler works (see schedule_tail
-        * and finish_arch_switch). If we do not do it, a timer interrupt hits
-        * before we unlock, attempts to re-take the rq->lock, and then we die.
-        * Thus, kpsr|=PSR_PIL.
+        * A new process must start with interrupts disabled, see schedule_tail()
+        * and finish_task_switch(). (If we do not do it and if a timer interrupt
+        * hits before we unlock and attempts to take the rq->lock, we deadlock.)
+        *
+        * Thus, kpsr |= PSR_PIL.
         */
        ti->ksp = (unsigned long) new_stack;
        p->thread.kregs = childregs;