On 06/25/2012 10:06 PM, Tejun Heo wrote:
Again, nits.
On Mon, Jun 25, 2012 at 06:15:23PM +0400, Glauber Costa wrote:
+#define mem_cgroup_kmem_on 1
+bool __mem_cgroup_new_kmem_page(gfp_t gfp, void *handle, int order);
+void __mem_cgroup_commit_kmem_page(struct page *page, void *handle, int order);
+void __mem_cgroup_free_kmem_page(struct page *page, int order);
+#define is_kmem_tracked_alloc (gfp & __GFP_KMEMCG)
Ugh... please do the following instead.
static inline bool is_kmem_tracked_alloc(gfp_t gfp)
{
return gfp & __GFP_KMEMCG;
}
#else
static inline void sock_update_memcg(struct sock *sk)
{
@@ -416,6 +423,43 @@ static inline void sock_update_memcg(struct sock *sk)
static inline void sock_release_memcg(struct sock *sk)
{
}
+
+#define mem_cgroup_kmem_on 0
+#define __mem_cgroup_new_kmem_page(a, b, c) false
+#define __mem_cgroup_free_kmem_page(a,b )
+#define __mem_cgroup_commit_kmem_page(a, b, c)
+#define is_kmem_tracked_alloc (false)
I would prefer static inlines here too. It's a bit more code in the
header but leads to less surprises (e.g. arg evals w/ side effects or
compiler warning about unused vars) and makes it easier to avoid
cosmetic errors.
Thanks.
Sure thing.
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