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-rw-r--r--debian/patches-rt/0094-printk-kmsg_dump-use-kmsg_dump_rewind.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/debian/patches-rt/0094-printk-kmsg_dump-use-kmsg_dump_rewind.patch b/debian/patches-rt/0094-printk-kmsg_dump-use-kmsg_dump_rewind.patch
new file mode 100644
index 000000000..7ff974d08
--- /dev/null
+++ b/debian/patches-rt/0094-printk-kmsg_dump-use-kmsg_dump_rewind.patch
@@ -0,0 +1,42 @@
+From 66a45e662dc7ecb7e9b519d3475c7893c0c1dc60 Mon Sep 17 00:00:00 2001
+From: John Ogness <john.ogness@linutronix.de>
+Date: Wed, 17 Feb 2021 18:23:16 +0100
+Subject: [PATCH 094/323] printk: kmsg_dump: use kmsg_dump_rewind
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz
+
+kmsg_dump() is open coding the kmsg_dump_rewind(). Call
+kmsg_dump_rewind() instead.
+
+Signed-off-by: John Ogness <john.ogness@linutronix.de>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ kernel/printk/printk.c | 6 +-----
+ 1 file changed, 1 insertion(+), 5 deletions(-)
+
+diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
+index 031ce3f00141..c553b235d068 100644
+--- a/kernel/printk/printk.c
++++ b/kernel/printk/printk.c
+@@ -3356,7 +3356,6 @@ void kmsg_dump(enum kmsg_dump_reason reason)
+ {
+ struct kmsg_dumper_iter iter;
+ struct kmsg_dumper *dumper;
+- unsigned long flags;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(dumper, &dump_list, list) {
+@@ -3375,10 +3374,7 @@ void kmsg_dump(enum kmsg_dump_reason reason)
+
+ /* initialize iterator with data about the stored records */
+ iter.active = true;
+- printk_safe_enter_irqsave(flags);
+- iter.cur_seq = latched_seq_read_nolock(&clear_seq);
+- iter.next_seq = prb_next_seq(prb);
+- printk_safe_exit_irqrestore(flags);
++ kmsg_dump_rewind(&iter);
+
+ /* invoke dumper which will iterate over records */
+ dumper->dump(dumper, reason, &iter);
+--
+2.43.0
+