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| author | Vladimir Davydov <vdavydov@virtuozzo.com> | 2016-03-17 22:17:38 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 23:09:34 +0100 |
| commit | 12580e4b54ba8a1b22ec977c200be0174ca42348 (patch) | |
| tree | 7af0c8f8aada72d7792a6ec4655437126a3cc321 /kernel/fork.c | |
| parent | mm: memcontrol: report slab usage in cgroup2 memory.stat (diff) | |
| download | linux-12580e4b54ba8a1b22ec977c200be0174ca42348.tar.xz linux-12580e4b54ba8a1b22ec977c200be0174ca42348.zip | |
mm: memcontrol: report kernel stack usage in cgroup2 memory.stat
Show how much memory is allocated to kernel stacks.
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 2e391c754ae7..accb7221d547 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -164,12 +164,20 @@ static struct thread_info *alloc_thread_info_node(struct task_struct *tsk, struct page *page = alloc_kmem_pages_node(node, THREADINFO_GFP, THREAD_SIZE_ORDER); + if (page) + memcg_kmem_update_page_stat(page, MEMCG_KERNEL_STACK, + 1 << THREAD_SIZE_ORDER); + return page ? page_address(page) : NULL; } static inline void free_thread_info(struct thread_info *ti) { - free_kmem_pages((unsigned long)ti, THREAD_SIZE_ORDER); + struct page *page = virt_to_page(ti); + + memcg_kmem_update_page_stat(page, MEMCG_KERNEL_STACK, + -(1 << THREAD_SIZE_ORDER)); + __free_kmem_pages(page, THREAD_SIZE_ORDER); } # else static struct kmem_cache *thread_info_cache; |