Adding debian version 5.10.209-2.debian/5.10.209-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/debian/patches-rt/0322-rt-mm-page_alloc-backport-missing-bits-from-__build_.patch b/debian/patches-rt/0322-rt-mm-page_alloc-backport-missing-bits-from-__build_.patch
new file mode 100644
index 000000000..8c13d7c63
--- /dev/null
+++ b/debian/patches-rt/0322-rt-mm-page_alloc-backport-missing-bits-from-__build_.patch
@@ -0,0 +1,49 @@
+From dbe86f5017c79c8abb6f42a6f0f1ad8d97dbae46 Mon Sep 17 00:00:00 2001
+From: "Luis Claudio R. Goncalves" <lgoncalv@redhat.com>
+Date: Wed, 20 Dec 2023 10:20:48 -0300
+Subject: [PATCH 322/323] rt: mm/page_alloc: backport missing bits from
+ __build_all_zonelists() fix
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz
+
+A while ago upstream landed commit a2ebb51575828 ("mm/page_alloc: use
+write_seqlock_irqsave() instead write_seqlock() + local_irq_save().")
+to fix a problem that had already been worked on v5.10-rt via commit
+7bdd3bd5143a4 ("Revert "mm/page_alloc: fix potential deadlock on
+zonelist_update_seqseqlock""). Sebastian pointed out it was important
+to backport the missing elements of a2ebb51575828 for code consistency.
+
+Fixes: 7bdd3bd5143a4 ("Revert "mm/page_alloc: fix potential deadlock on zonelist_update_seqseqlock"")
+Cc: stable-rt@vger.kernel.org
+Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Signed-off-by: Luis Claudio R. Goncalves <lgoncalv@redhat.com>
+---
+ mm/page_alloc.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/mm/page_alloc.c b/mm/page_alloc.c
+index 39d1782b398f..cd1e8d0b2269 100644
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -6043,8 +6043,9 @@ static void __build_all_zonelists(void *data)
+ 	int nid;
+ 	int __maybe_unused cpu;
+ 	pg_data_t *self = data;
++	unsigned long flags;
+ 
+-	write_seqlock(&zonelist_update_seq);
++	write_seqlock_irqsave(&zonelist_update_seq, flags);
+ 
+ #ifdef CONFIG_NUMA
+ 	memset(node_load, 0, sizeof(node_load));
+@@ -6077,7 +6078,7 @@ static void __build_all_zonelists(void *data)
+ #endif
+ 	}
+ 
+-	write_sequnlock(&zonelist_update_seq);
++	write_sequnlock_irqrestore(&zonelist_update_seq, flags);
+ }
+ 
+ static noinline void __init
+-- 
+2.43.0
+