+ mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-2.patch added to -mm tree

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm/percpu: fix 'defined but not used' warning
has been added to the -mm tree.  Its filename is
     mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-2.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-2.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-2.patch

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------------------------------------------------------
From: Bixuan Cui <cuibixuan@huawei.com>
Subject: mm/percpu: fix 'defined but not used' warning

Gcc report the following warning without CONFIG_MEMCG_KMEM:

mm/percpu-internal.h:145:29: warning: 'pcpu_chunk_type' defined
but not used [-Wunused-function]
 static enum pcpu_chunk_type pcpu_chunk_type(struct pcpu_chunk *chunk)
                             ^~~~~~~~~~~~~~~

Add 'inline' to pcpu_chunk_type(),pcpu_is_memcg_chunk() and
pcpu_chunk_list() to clear warning.

Link: http://lkml.kernel.org/r/6d41b939-a741-b521-a7a2-e7296ec16219@huawei.com
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/percpu-internal.h |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/mm/percpu-internal.h~mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-2
+++ a/mm/percpu-internal.h
@@ -129,31 +129,31 @@ static inline int pcpu_chunk_map_bits(st
 }
 
 #ifdef CONFIG_MEMCG_KMEM
-static enum pcpu_chunk_type pcpu_chunk_type(struct pcpu_chunk *chunk)
+static inline enum pcpu_chunk_type pcpu_chunk_type(struct pcpu_chunk *chunk)
 {
 	if (chunk->obj_cgroups)
 		return PCPU_CHUNK_MEMCG;
 	return PCPU_CHUNK_ROOT;
 }
 
-static bool pcpu_is_memcg_chunk(enum pcpu_chunk_type chunk_type)
+static inline bool pcpu_is_memcg_chunk(enum pcpu_chunk_type chunk_type)
 {
 	return chunk_type == PCPU_CHUNK_MEMCG;
 }
 
 #else
-static enum pcpu_chunk_type pcpu_chunk_type(struct pcpu_chunk *chunk)
+static inline enum pcpu_chunk_type pcpu_chunk_type(struct pcpu_chunk *chunk)
 {
 	return PCPU_CHUNK_ROOT;
 }
 
-static bool pcpu_is_memcg_chunk(enum pcpu_chunk_type chunk_type)
+static inline bool pcpu_is_memcg_chunk(enum pcpu_chunk_type chunk_type)
 {
 	return false;
 }
 #endif
 
-static struct list_head *pcpu_chunk_list(enum pcpu_chunk_type chunk_type)
+static inline struct list_head *pcpu_chunk_list(enum pcpu_chunk_type chunk_type)
 {
 	return &pcpu_chunk_lists[pcpu_nr_slots *
 				 pcpu_is_memcg_chunk(chunk_type)];
_

Patches currently in -mm which might be from cuibixuan@huawei.com are

mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-2.patch