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AJvYcCUk7ii7K6YupWIT+sKVbm2BU+5+vozTDIDMRhjpYjPY+j079Hesehevx/LpXXWP6lE47GlnUqDroVN0VfvCTjvfQYE= X-Gm-Message-State: AOJu0Yw/xHcHB6CsPCFuoIJLKk1Yc1b0nt7XPUr3TEKdQXJh8GyxpyLs 1vaPFlbM6EhKKeJrvhrif5Uffjv/SMV/tA0TTFoRyfBu7zIu92u35bWkGU/uLGxeWYA5apUPqeF bvQ== X-Google-Smtp-Source: AGHT+IGHRX7538S2HF/3oOa1sNnpVXnzB+i3nUjYB81n0AdHPc2tfmh7wCvtVRvHYQ8dsZZZ2KX9wsSWPB4= X-Received: from surenb-desktop.mtv.corp.google.com ([2620:15c:211:201:a489:6433:be5d:e639]) (user=surenb job=sendgmr) by 2002:a05:6902:2506:b0:dd1:390a:51e8 with SMTP id dt6-20020a056902250600b00dd1390a51e8mr2395872ybb.10.1711039090742; Thu, 21 Mar 2024 09:38:10 -0700 (PDT) Date: Thu, 21 Mar 2024 09:36:50 -0700 In-Reply-To: <20240321163705.3067592-1-surenb@google.com> Mime-Version: 1.0 References: <20240321163705.3067592-1-surenb@google.com> X-Mailer: git-send-email 2.44.0.291.gc1ea87d7ee-goog Message-ID: <20240321163705.3067592-29-surenb@google.com> Subject: [PATCH v6 28/37] mm: percpu: Add codetag reference into pcpuobj_ext From: Suren Baghdasaryan To: akpm@linux-foundation.org Cc: kent.overstreet@linux.dev, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, roman.gushchin@linux.dev, mgorman@suse.de, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, penguin-kernel@i-love.sakura.ne.jp, corbet@lwn.net, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com, david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org, jhubbard@nvidia.com, tj@kernel.org, muchun.song@linux.dev, rppt@kernel.org, paulmck@kernel.org, pasha.tatashin@soleen.com, yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com, hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org, ndesaulniers@google.com, vvvvvv@google.com, gregkh@linuxfoundation.org, ebiggers@google.com, ytcoode@gmail.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com, vschneid@redhat.com, cl@linux.com, penberg@kernel.org, iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, songmuchun@bytedance.com, jbaron@akamai.com, aliceryhl@google.com, rientjes@google.com, minchan@google.com, kaleshsingh@google.com, surenb@google.com, kernel-team@android.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, kasan-dev@googlegroups.com, cgroups@vger.kernel.org X-Rspamd-Queue-Id: BA11E18001B X-Rspam-User: X-Stat-Signature: eiby3fyoubzkf8uagth9keuoa5tszo6i X-Rspamd-Server: rspam03 X-HE-Tag: 1711039091-365728 X-HE-Meta: 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 acj/i6s8 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 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: List-Subscribe: List-Unsubscribe: From: Kent Overstreet To store codetag for every per-cpu allocation, a codetag reference is embedded into pcpuobj_ext when CONFIG_MEM_ALLOC_PROFILING=y. Hooks to use the newly introduced codetag are added. Signed-off-by: Kent Overstreet Signed-off-by: Suren Baghdasaryan --- mm/percpu-internal.h | 11 +++++++++-- mm/percpu.c | 26 ++++++++++++++++++++++++++ 2 files changed, 35 insertions(+), 2 deletions(-) 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..90e9e4004ac9 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(&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