Merge tag 'v6.14-rc1' into perf-tools-next

To get the various fixes in the current master.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>

1 files changed, 29 insertions, 6 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index d380bffee2ef..9632e3318e0d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -398,6 +398,12 @@ struct sched_info {
 	/* Time spent waiting on a runqueue: */
 	unsigned long long		run_delay;
 
+	/* Max time spent waiting on a runqueue: */
+	unsigned long long		max_run_delay;
+
+	/* Min time spent waiting on a runqueue: */
+	unsigned long long		min_run_delay;
+
 	/* Timestamps: */
 
 	/* When did we last run on a CPU? */
@@ -656,6 +662,12 @@ struct sched_dl_entity {
 	 * @dl_defer_armed tells if the deferrable server is waiting
 	 * for the replenishment timer to activate it.
 	 *
+	 * @dl_server_active tells if the dlserver is active(started).
+	 * dlserver is started on first cfs enqueue on an idle runqueue
+	 * and is stopped when a dequeue results in 0 cfs tasks on the
+	 * runqueue. In other words, dlserver is active only when cpu's
+	 * runqueue has atleast one cfs task.
+	 *
 	 * @dl_defer_running tells if the deferrable server is actually
 	 * running, skipping the defer phase.
 	 */
@@ -664,6 +676,7 @@ struct sched_dl_entity {
 	unsigned int			dl_non_contending : 1;
 	unsigned int			dl_overrun	  : 1;
 	unsigned int			dl_server         : 1;
+	unsigned int			dl_server_active  : 1;
 	unsigned int			dl_defer	  : 1;
 	unsigned int			dl_defer_armed	  : 1;
 	unsigned int			dl_defer_running  : 1;
@@ -937,6 +950,7 @@ struct task_struct {
 	unsigned			sched_reset_on_fork:1;
 	unsigned			sched_contributes_to_load:1;
 	unsigned			sched_migrated:1;
+	unsigned			sched_task_hot:1;
 
 	/* Force alignment to the next boundary: */
 	unsigned			:0;
@@ -1367,6 +1381,15 @@ struct task_struct {
 	 * with respect to preemption.
 	 */
 	unsigned long rseq_event_mask;
+# ifdef CONFIG_DEBUG_RSEQ
+	/*
+	 * This is a place holder to save a copy of the rseq fields for
+	 * validation of read-only fields. The struct rseq has a
+	 * variable-length array at the end, so it cannot be used
+	 * directly. Reserve a size large enough for the known fields.
+	 */
+	char				rseq_fields[sizeof(struct rseq)];
+# endif
 #endif
 
 #ifdef CONFIG_SCHED_MM_CID
@@ -1630,8 +1653,9 @@ static inline unsigned int __task_state_index(unsigned int tsk_state,
 	 * We're lying here, but rather than expose a completely new task state
 	 * to userspace, we can make this appear as if the task has gone through
 	 * a regular rt_mutex_lock() call.
+	 * Report frozen tasks as uninterruptible.
 	 */
-	if (tsk_state & TASK_RTLOCK_WAIT)
+	if ((tsk_state & TASK_RTLOCK_WAIT) || (tsk_state & TASK_FROZEN))
 		state = TASK_UNINTERRUPTIBLE;
 
 	return fls(state);
@@ -1936,11 +1960,10 @@ static inline void kick_process(struct task_struct *tsk) { }
 #endif
 
 extern void __set_task_comm(struct task_struct *tsk, const char *from, bool exec);
-
-static inline void set_task_comm(struct task_struct *tsk, const char *from)
-{
-	__set_task_comm(tsk, from, false);
-}
+#define set_task_comm(tsk, from) ({			\
+	BUILD_BUG_ON(sizeof(from) != TASK_COMM_LEN);	\
+	__set_task_comm(tsk, from, false);		\
+})
 
 /*
  * - Why not use task_lock()?