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, 37 insertions, 0 deletions

diff --git a/debian/patches-rt/0201-mm-slub-Don-t-resize-the-location-tracking-cache-on-.patch b/debian/patches-rt/0201-mm-slub-Don-t-resize-the-location-tracking-cache-on-.patch
new file mode 100644
index 000000000..c233be3ef
--- /dev/null
+++ b/debian/patches-rt/0201-mm-slub-Don-t-resize-the-location-tracking-cache-on-.patch
@@ -0,0 +1,37 @@
+From 6f5d1f04864beb65079068f48faf17c269c8509b Mon Sep 17 00:00:00 2001
+From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Date: Fri, 26 Feb 2021 17:26:04 +0100
+Subject: [PATCH 201/323] mm: slub: Don't resize the location tracking cache on
+ PREEMPT_RT
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz
+
+The location tracking cache has a size of a page and is resized if its
+current size is too small.
+This allocation happens with disabled interrupts and can't happen on
+PREEMPT_RT.
+Should one page be too small, then we have to allocate more at the
+beginning. The only downside is that less callers will be visible.
+
+Cc: stable-rt@vger.kernel.org
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ mm/slub.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/mm/slub.c b/mm/slub.c
+index cb414c1f9ef6..57c598dd7454 100644
+--- a/mm/slub.c
++++ b/mm/slub.c
+@@ -4682,6 +4682,9 @@ static int alloc_loc_track(struct loc_track *t, unsigned long max, gfp_t flags)
+ 	struct location *l;
+ 	int order;
+ 
++	if (IS_ENABLED(CONFIG_PREEMPT_RT) && flags == GFP_ATOMIC)
++		return 0;
++
+ 	order = get_order(sizeof(struct location) * max);
+ 
+ 	l = (void *)__get_free_pages(flags, order);
+-- 
+2.43.0
+