linux-kernel - [PATCH v4 11/19] mm: memcg/slab: move memcg_kmem

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Message-ID: <20200526214227.989341-12-guro@fb.com>
Date:   Tue, 26 May 2020 14:42:19 -0700
From:   Roman Gushchin <guro@...com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Lameter <cl@...ux.com>
CC:     Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Shakeel Butt <shakeelb@...gle.com>, <linux-mm@...ck.org>,
        Vlastimil Babka <vbabka@...e.cz>, <kernel-team@...com>,
        <linux-kernel@...r.kernel.org>, Roman Gushchin <guro@...com>
Subject: [PATCH v4 11/19] mm: memcg/slab: move memcg_kmem_bypass() to memcontrol.h

To make the memcg_kmem_bypass() function available outside of
the memcontrol.c, let's move it to memcontrol.h. The function
is small and nicely fits into static inline sort of functions.

It will be used from the slab code.

Signed-off-by: Roman Gushchin <guro@...com>
Reviewed-by: Vlastimil Babka <vbabka@...e.cz>
---
 include/linux/memcontrol.h | 7 +++++++
 mm/memcontrol.c            | 7 -------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 98239fdf9fee..2165470a2534 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1442,6 +1442,13 @@ static inline bool memcg_kmem_enabled(void)
 	return static_branch_unlikely(&memcg_kmem_enabled_key);
 }
 
+static inline bool memcg_kmem_bypass(void)
+{
+	if (in_interrupt() || !current->mm || (current->flags & PF_KTHREAD))
+		return true;
+	return false;
+}
+
 static inline int memcg_kmem_charge_page(struct page *page, gfp_t gfp,
 					 int order)
 {
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index eca03e13c7ec..107cd7cc3e98 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2893,13 +2893,6 @@ static void memcg_schedule_kmem_cache_create(struct mem_cgroup *memcg,
 	queue_work(memcg_kmem_cache_wq, &cw->work);
 }
 
-static inline bool memcg_kmem_bypass(void)
-{
-	if (in_interrupt() || !current->mm || (current->flags & PF_KTHREAD))
-		return true;
-	return false;
-}
-
 /**
  * memcg_kmem_get_cache: select the correct per-memcg cache for allocation
  * @cachep: the original global kmem cache
-- 
2.25.4