From 08b74a000942a380fe028845f92cd3a0dee827d5 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:38 +0200 Subject: Adding debian version 4.19.249-2. Signed-off-by: Daniel Baumann --- ...ol-Move-misplaced-local_unlock_irqrestore.patch | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 debian/patches-rt/0318-mm-memcontrol-Move-misplaced-local_unlock_irqrestore.patch (limited to 'debian/patches-rt/0318-mm-memcontrol-Move-misplaced-local_unlock_irqrestore.patch') diff --git a/debian/patches-rt/0318-mm-memcontrol-Move-misplaced-local_unlock_irqrestore.patch b/debian/patches-rt/0318-mm-memcontrol-Move-misplaced-local_unlock_irqrestore.patch new file mode 100644 index 000000000..87fb2dcd0 --- /dev/null +++ b/debian/patches-rt/0318-mm-memcontrol-Move-misplaced-local_unlock_irqrestore.patch @@ -0,0 +1,42 @@ +From 402c737918994231fbd205f2a7dcf06c5046a849 Mon Sep 17 00:00:00 2001 +From: Matt Fleming +Date: Sun, 26 Jan 2020 21:19:45 +0000 +Subject: [PATCH 318/347] mm/memcontrol: Move misplaced + local_unlock_irqrestore() +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz + +[ Upstream commit 071a1d6a6e14d0dec240a8c67b425140d7f92f6a ] + +The comment about local_lock_irqsave() mentions just the counters and +css_put_many()'s callback just invokes a worker so it is safe to move the +unlock function after memcg_check_events() so css_put_many() can be invoked +without the lock acquired. + +Cc: Daniel Wagner +Signed-off-by: Matt Fleming +Signed-off-by: Steven Rostedt (VMware) +[bigeasy: rewrote the patch description] +Signed-off-by: Sebastian Andrzej Siewior +--- + mm/memcontrol.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/mm/memcontrol.c b/mm/memcontrol.c +index 239fec6eac9f..d5bda1449fe3 100644 +--- a/mm/memcontrol.c ++++ b/mm/memcontrol.c +@@ -6541,10 +6541,10 @@ void mem_cgroup_swapout(struct page *page, swp_entry_t entry) + mem_cgroup_charge_statistics(memcg, page, PageTransHuge(page), + -nr_entries); + memcg_check_events(memcg, page); ++ local_unlock_irqrestore(event_lock, flags); + + if (!mem_cgroup_is_root(memcg)) + css_put_many(&memcg->css, nr_entries); +- local_unlock_irqrestore(event_lock, flags); + } + + /** +-- +2.36.1 + -- cgit v1.2.3