[MODERATED] Re: [patch V8 15/15] SSB 15

[Tim Chen <tim.c.chen@linux.intel.com>]

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Can we add this bit to this patch?  It will be useful
to find out if RDS is enabled from /proc/pid/status.

Thanks.

Tim

diff --git a/fs/proc/array.c b/fs/proc/array.c
index ae2c807..cc6653f 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -338,6 +338,14 @@ static inline void task_seccomp(struct seq_file *m, struct task_struct *p)
 	seq_putc(m, '\n');
 }
 
+static inline void task_rds(struct seq_file *m, struct task_struct *p)
+{
+	if (test_tsk_thread_flag(p, TIF_RDS))
+		seq_printf(m, "Reduced Data Speculation: 1 (On)\n");
+	else
+		seq_printf(m, "Reduced Data Speculation: 0 (Off)\n");
+}
+
 static inline void task_context_switch_counts(struct seq_file *m,
 						struct task_struct *p)
 {
@@ -379,6 +387,7 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
 	task_cpus_allowed(m, task);
 	cpuset_task_status_allowed(m, task);
 	task_context_switch_counts(m, task);
+	task_rds(m, task);
 	return 0;
 }