[PATCH 1/4] sched: dovetail: pass thread-info bits to arch_dovetail_switch_finish()

[Philippe Gerum via Xenomai]

From: Philippe Gerum <r...@xenomai.org>

The out-of-band switch tail code may need the thread-info work bits to
reinstate the current context appropriately, pass them to
arch_dovetail_switch_finish().

Signed-off-by: Philippe Gerum <r...@xenomai.org>
---
 kernel/sched/core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a1159a263894..75b506bb60bb 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10902,6 +10902,7 @@ int dovetail_leave_inband(void)
 {
        struct task_struct *p = current;
        struct irq_pipeline_data *pd;
+       unsigned int ti_work;
        unsigned long flags;
 
        preempt_disable();
@@ -10930,7 +10931,8 @@ int dovetail_leave_inband(void)
         * architecture-specific fixups (e.g. fpu context reload).
         */
        if (likely(__schedule(SM_NONE))) {
-               arch_dovetail_switch_finish(false);
+               ti_work = READ_ONCE(current_thread_info()->flags);
+               arch_dovetail_switch_finish(false, ti_work);
                return 0;
        }
 
@@ -10987,6 +10989,7 @@ bool dovetail_context_switch(struct 
dovetail_altsched_context *out,
        struct task_struct *next, *prev, *last;
        struct mm_struct *prev_mm, *next_mm;
        bool inband_tail = false;
+       unsigned long ti_work;
 
        WARN_ON_ONCE(dovetail_debug() && on_pipeline_entry());
 
@@ -11108,7 +11111,8 @@ bool dovetail_context_switch(struct 
dovetail_altsched_context *out,
                lockdep_write_irqs_state(lockdep_irqs);
        }
 
-       arch_dovetail_switch_finish(leave_inband);
+       ti_work = READ_ONCE(current_thread_info()->flags);
+       arch_dovetail_switch_finish(leave_inband, ti_work);
 
        /*
         * inband_tail is true whenever we are finalizing a transition
-- 
2.34.1