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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /include/linux/coresight.h
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'include/linux/coresight.h')
-rw-r--r--include/linux/coresight.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 3486b9082..c69e1b932 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -14,6 +14,7 @@
#define _LINUX_CORESIGHT_H
#include <linux/device.h>
+#include <linux/sched.h>
/* Peripheral id registers (0xFD0-0xFEC) */
#define CORESIGHT_PERIPHIDR4 0xfd0
@@ -248,4 +249,24 @@ static inline struct coresight_platform_data *of_get_coresight_platform_data(
struct device *dev, struct device_node *node) { return NULL; }
#endif
+#ifdef CONFIG_PID_NS
+static inline unsigned long
+coresight_vpid_to_pid(unsigned long vpid)
+{
+ struct task_struct *task = NULL;
+ unsigned long pid = 0;
+
+ rcu_read_lock();
+ task = find_task_by_vpid(vpid);
+ if (task)
+ pid = task_pid_nr(task);
+ rcu_read_unlock();
+
+ return pid;
+}
+#else
+static inline unsigned long
+coresight_vpid_to_pid(unsigned long vpid) { return vpid; }
+#endif
+
#endif