Message ID | 20240221194052.927623-28-surenb@google.com (mailing list archive) |
---|---|
State | New |
Headers | show
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charset="UTF-8" X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: D622D4000D X-Stat-Signature: kfc5u56zgptsqidmbcrmpiks1zfkzqap X-Rspam-User: X-HE-Tag: 1708544516-9248 X-HE-Meta: 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 rQ6eDGHd TwA7MlwxKnxAJpPuw8mLdqDjG+23C2r4JJV453LzleZy3k+Yvb1dJ8iWgRx+IM/Uv76diQkr7jRPLKmvjXLSiAGS0NHBR/Vwsg3cCIHU9EtdGu3N7R1s3QnN6kSIlY0WKq+xWY144vVY78iVonbHPL8aWJAyOHmHGprewEpaSjBVwylv5TuwHz9Kvh17JbxN730fVP1UWEN8Rps1Ky7SKLj1GEhLvjzK6CI6jnrjUp8Uf0ZozLeb7vE7xsaSYELINpz7ZUbaYBmeXGyPeMK5n1E6mCuWN31YakFcjDw9rNkfZXTdT0MmJlan/2eCzJ/Qwc3ctJBo2xTpv6ebfgVbVTD6E2vAKIs+Gr1SoFKDWfMxsHS+1s3JWpwbfAo5qHkogaNqMD/Z2RoVjoGAefMHpBv7eks3ZHaC8+YcKT/9n5Xt8+5KUddU3ah6gO2kbeMXTbLxL+006YwbIcCA/+t0Kq3KdSQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: <linux-mm.kvack.org> List-Subscribe: <mailto:majordomo@kvack.org> List-Unsubscribe: <mailto:majordomo@kvack.org> |
Series |
Memory allocation profiling
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expand
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diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h index e62d582f4bf3..7e42f0ca3b7b 100644 --- a/mm/percpu-internal.h +++ b/mm/percpu-internal.h @@ -36,9 +36,12 @@ struct pcpuobj_ext { #ifdef CONFIG_MEMCG_KMEM struct obj_cgroup *cgroup; #endif +#ifdef CONFIG_MEM_ALLOC_PROFILING + union codetag_ref tag; +#endif }; -#ifdef CONFIG_MEMCG_KMEM +#if defined(CONFIG_MEMCG_KMEM) || defined(CONFIG_MEM_ALLOC_PROFILING) #define NEED_PCPUOBJ_EXT #endif @@ -86,7 +89,11 @@ struct pcpu_chunk { static inline bool need_pcpuobj_ext(void) { - return !mem_cgroup_kmem_disabled(); + if (IS_ENABLED(CONFIG_MEM_ALLOC_PROFILING)) + return true; + if (!mem_cgroup_kmem_disabled()) + return true; + return false; } extern spinlock_t pcpu_lock; diff --git a/mm/percpu.c b/mm/percpu.c index 2e5edaad9cc3..578531ea1f43 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1699,6 +1699,32 @@ static void pcpu_memcg_free_hook(struct pcpu_chunk *chunk, int off, size_t size) } #endif /* CONFIG_MEMCG_KMEM */ +#ifdef CONFIG_MEM_ALLOC_PROFILING +static void pcpu_alloc_tag_alloc_hook(struct pcpu_chunk *chunk, int off, + size_t size) +{ + if (mem_alloc_profiling_enabled() && likely(chunk->obj_exts)) { + alloc_tag_add(&chunk->obj_exts[off >> PCPU_MIN_ALLOC_SHIFT].tag, + current->alloc_tag, size); + } +} + +static void pcpu_alloc_tag_free_hook(struct pcpu_chunk *chunk, int off, size_t size) +{ + if (mem_alloc_profiling_enabled() && likely(chunk->obj_exts)) + alloc_tag_sub_noalloc(&chunk->obj_exts[off >> PCPU_MIN_ALLOC_SHIFT].tag, size); +} +#else +static void pcpu_alloc_tag_alloc_hook(struct pcpu_chunk *chunk, int off, + size_t size) +{ +} + +static void pcpu_alloc_tag_free_hook(struct pcpu_chunk *chunk, int off, size_t size) +{ +} +#endif + /** * pcpu_alloc - the percpu allocator * @size: size of area to allocate in bytes