[ANNOUNCE] v5.0.7-rt4v5.0.7-rt4-patches

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

3 files changed, 1 insertions, 85 deletions

diff --git a/patches/arm-unwind-use_raw_lock.patch b/patches/arm-unwind-use_raw_lock.patch
deleted file mode 100644
index 9c10dd91c295..000000000000
--- a/patches/arm-unwind-use_raw_lock.patch
+++ /dev/null
@@ -1,83 +0,0 @@
-From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
-Date: Fri, 20 Sep 2013 14:31:54 +0200
-Subject: arm/unwind: use a raw_spin_lock
-
-Mostly unwind is done with irqs enabled however SLUB may call it with
-irqs disabled while creating a new SLUB cache.
-
-I had system freeze while loading a module which called
-kmem_cache_create() on init. That means SLUB's __slab_alloc() disabled
-interrupts and then
-
-->new_slab_objects()
- ->new_slab()
-  ->setup_object()
-   ->setup_object_debug()
-    ->init_tracking()
-     ->set_track()
-      ->save_stack_trace()
-       ->save_stack_trace_tsk()
-        ->walk_stackframe()
-         ->unwind_frame()
-          ->unwind_find_idx()
-           =>spin_lock_irqsave(&unwind_lock);
-
-
-Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
----
- arch/arm/kernel/unwind.c |   14 +++++++-------
- 1 file changed, 7 insertions(+), 7 deletions(-)
-
---- a/arch/arm/kernel/unwind.c
-+++ b/arch/arm/kernel/unwind.c
-@@ -93,7 +93,7 @@ extern const struct unwind_idx __start_u
- static const struct unwind_idx *__origin_unwind_idx;
- extern const struct unwind_idx __stop_unwind_idx[];
- 
--static DEFINE_SPINLOCK(unwind_lock);
-+static DEFINE_RAW_SPINLOCK(unwind_lock);
- static LIST_HEAD(unwind_tables);
- 
- /* Convert a prel31 symbol to an absolute address */
-@@ -201,7 +201,7 @@ static const struct unwind_idx *unwind_f
- 		/* module unwind tables */
- 		struct unwind_table *table;
- 
--		spin_lock_irqsave(&unwind_lock, flags);
-+		raw_spin_lock_irqsave(&unwind_lock, flags);
- 		list_for_each_entry(table, &unwind_tables, list) {
- 			if (addr >= table->begin_addr &&
- 			    addr < table->end_addr) {
-@@ -213,7 +213,7 @@ static const struct unwind_idx *unwind_f
- 				break;
- 			}
- 		}
--		spin_unlock_irqrestore(&unwind_lock, flags);
-+		raw_spin_unlock_irqrestore(&unwind_lock, flags);
- 	}
- 
- 	pr_debug("%s: idx = %p\n", __func__, idx);
-@@ -529,9 +529,9 @@ struct unwind_table *unwind_table_add(un
- 	tab->begin_addr = text_addr;
- 	tab->end_addr = text_addr + text_size;
- 
--	spin_lock_irqsave(&unwind_lock, flags);
-+	raw_spin_lock_irqsave(&unwind_lock, flags);
- 	list_add_tail(&tab->list, &unwind_tables);
--	spin_unlock_irqrestore(&unwind_lock, flags);
-+	raw_spin_unlock_irqrestore(&unwind_lock, flags);
- 
- 	return tab;
- }
-@@ -543,9 +543,9 @@ void unwind_table_del(struct unwind_tabl
- 	if (!tab)
- 		return;
- 
--	spin_lock_irqsave(&unwind_lock, flags);
-+	raw_spin_lock_irqsave(&unwind_lock, flags);
- 	list_del(&tab->list);
--	spin_unlock_irqrestore(&unwind_lock, flags);
-+	raw_spin_unlock_irqrestore(&unwind_lock, flags);
- 
- 	kfree(tab);
- }
diff --git a/patches/localversion.patch b/patches/localversion.patch
index e36eb4b6666a..03a80b8b0e80 100644
--- a/patches/localversion.patch
+++ b/patches/localversion.patch
@@ -10,4 +10,4 @@ Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
 --- /dev/null
 +++ b/localversion-rt
 @@ -0,0 +1 @@
-+-rt3
++-rt4
diff --git a/patches/series b/patches/series
index 6561ada148b7..6a6ecc2d9e8b 100644
--- a/patches/series
+++ b/patches/series
@@ -66,7 +66,6 @@ printk-print-rate-limitted-message-as-info.patch
 ############################################################
 x86-ioapic-Don-t-let-setaffinity-unmask-threaded-EOI.patch
 arm-kprobe-replace-patch_lock-to-raw-lock.patch
-arm-unwind-use_raw_lock.patch
 cgroup-use-irqsave-in-cgroup_rstat_flush_locked.patch
 fscache-initialize-cookie-hash-table-raw-spinlocks.patch
 Drivers-hv-vmbus-include-header-for-get_irq_regs.patch