From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 13 Aug 2025 22:38:42 +0000 (-0700)
Subject: memcg-optimize-exit-to-user-space-fix
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=15833bcbe34f82b33aad2e873da6a803495052ba;p=users%2Fjedix%2Flinux-maple.git

memcg-optimize-exit-to-user-space-fix

remove now-unneeded test of memcg_nr_pages_over_high==0, per Shakeel

Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index fda25d7b4ffc5..9712a751690f9 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2213,9 +2213,6 @@ void __mem_cgroup_handle_over_high(gfp_t gfp_mask)
 	struct mem_cgroup *memcg;
 	bool in_retry = false;
 
-	if (likely(!nr_pages))
-		return;
-
 	memcg = get_mem_cgroup_from_mm(current->mm);
 	current->memcg_nr_pages_over_high = 0;