The patch titled
Subject: memcg: cleanup kmem tcp ifdefs
has been added to the -mm tree. Its filename is
memcg-cleanup-kmem-tcp-ifdefs.patch
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------------------------------------------------------
From: Michal Hocko <mhocko@xxxxxxx>
Subject: memcg: cleanup kmem tcp ifdefs
TCP kmem accounting is currently guarded by CONFIG_MEMCG_KMEM ifdefs but
the code is not used if !CONFIG_INET so we should rather test for both.
The same applies to net/sock.h, net/ip.h and net/tcp_memcontrol.h but
let's keep those outside of any ifdefs because it is considered safer wrt.
future maintainability.
Tested with
- CONFIG_INET && CONFIG_MEMCG_KMEM
- !CONFIG_INET && CONFIG_MEMCG_KMEM
- CONFIG_INET && !CONFIG_MEMCG_KMEM
- !CONFIG_INET && !CONFIG_MEMCG_KMEM
Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
Signed-off-by: Michal Hocko <mhocko@xxxxxxx>
Cc: Glauber Costa <glommer@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff -puN mm/memcontrol.c~memcg-cleanup-kmem-tcp-ifdefs mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-cleanup-kmem-tcp-ifdefs
+++ a/mm/memcontrol.c
@@ -51,6 +51,7 @@
#include <linux/oom.h>
#include "internal.h"
#include <net/sock.h>
+#include <net/ip.h>
#include <net/tcp_memcontrol.h>
#include <asm/uaccess.h>
@@ -326,7 +327,7 @@ struct mem_cgroup {
struct mem_cgroup_stat_cpu nocpu_base;
spinlock_t pcp_counter_lock;
-#ifdef CONFIG_INET
+#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_INET)
struct tcp_memcontrol tcp_mem;
#endif
};
@@ -412,9 +413,7 @@ struct mem_cgroup *mem_cgroup_from_css(s
}
/* Writing them here to avoid exposing memcg's inner layout */
-#ifdef CONFIG_MEMCG_KMEM
-#include <net/sock.h>
-#include <net/ip.h>
+#if defined(CONFIG_INET) && defined(CONFIG_MEMCG_KMEM)
static bool mem_cgroup_is_root(struct mem_cgroup *memcg);
void sock_update_memcg(struct sock *sk)
@@ -461,7 +460,6 @@ void sock_release_memcg(struct sock *sk)
}
}
-#ifdef CONFIG_INET
struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg)
{
if (!memcg || mem_cgroup_is_root(memcg))
@@ -470,10 +468,7 @@ struct cg_proto *tcp_proto_cgroup(struct
return &memcg->tcp_mem.cg_proto;
}
EXPORT_SYMBOL(tcp_proto_cgroup);
-#endif /* CONFIG_INET */
-#endif /* CONFIG_MEMCG_KMEM */
-#if defined(CONFIG_INET) && defined(CONFIG_MEMCG_KMEM)
static void disarm_sock_keys(struct mem_cgroup *memcg)
{
if (!memcg_proto_activated(&memcg->tcp_mem.cg_proto))
_
Patches currently in -mm which might be from mhocko@xxxxxxx are
mm-ia64-fix-a-memory-block-size-bug.patch
mm-page_alloc-fix-the-page-address-of-higher-pages-buddy-calculation.patch
linux-next.patch
mm-hugetlb-add-arch-hook-for-clearing-page-flags-before-entering-pool.patch
mm-memblock-reduce-overhead-in-binary-search.patch
mm-memblock-use-existing-interface-to-set-nid.patch
mm-memblock-cleanup-early_node_map-related-comments.patch
mm-thp-fix-the-pmd_clear-arguments-in-pmdp_get_and_clear.patch
mm-thp-fix-the-update_mmu_cache-last-argument-passing-in-mm-huge_memoryc.patch
memcg-trivial-fixes-for-documentation-cgroups-memorytxt.patch
memcg-cleanup-kmem-tcp-ifdefs.patch
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