From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7DA372C847 for ; Tue, 24 Oct 2023 13:47:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--surenb.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="KB2ivRQW" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-d9a5a16fa94so4433289276.0 for ; Tue, 24 Oct 2023 06:47:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1698155268; x=1698760068; darn=lists.linux.dev; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=HuI3Xrhprruhc52//OZX/xia3QtNu4igKL3qfHIbn+g=; b=KB2ivRQW2CaulyqejS5DAuYv5JsRSsIGdW/fFWHyDE9puvQIJLYnGzRqU9R9OVfMo2 vorg2fzoe4l6XEePmq3P6cFBuImdbVTkvqvX2Wy3VJ4gnqfjTa5REc4esb0CEa7hUO0e 5WBos8xNxc//bJALo9CoSIOvFjSeLvSDBueXwlw9cnkTA5hRLpw53BcaYT6ZoD1iUer7 vaC8T/LNvkqix6UAPUNyt90LcFiMJwiyBDMcmMPGC86OMuQ1jqCYs95qNeHl4EwWA697 8eQnlUmslGgVwDm8wd2/v/eriQrCISa1HOz+/US1olypxtre/Fg9iVy3guXw8SJjgjO+ W2VA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698155268; x=1698760068; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=HuI3Xrhprruhc52//OZX/xia3QtNu4igKL3qfHIbn+g=; b=ovV7sa7YIgL1pCT0HEDUq043rnIrnD3Q4nyLXSMvekQUY1Dgf8clxwSBIGq6ql6T7g hMByk4C6G6rQDy+W9kdaEXZ2k1cqRA/MRUIsOBCXa1IcTUMWEg2SNEUeREpZlx5C89EX Q+ETh3u50bhW9znHBysD8K9phYkO2jsa5050i/Eg6iVpsmW1js8F696AL/mgQL2rKGDz uInvCQvUM/vkLcAqm1ouccOHtG+AQs3ktqKnyJoXUtRJ7QisPKJR3J2QWR1PomFm/5WR isDbcmnoOvrksdJEm4x/UmGyl/xqbfXodj6zScETtknsDMfFiUwZ5aNLCqV64Gxcd33w nWAg== X-Gm-Message-State: AOJu0YwMF2kB6UArm9J89nu2XAb8FTSlQOCHSPLfARJVHJK9t4EhbZu/ t1+4wZGVd6cTNPMiq6bm6BvqyNWzvkQ= X-Google-Smtp-Source: AGHT+IFJAKlMWbiV50/LrVqB8mrnoydVscOxG9uaLGUhxnV+JO976d9OMlZUiNtdsluAhIYZmngChgUkEcg= X-Received: from surenb-desktop.mtv.corp.google.com ([2620:15c:211:201:45ba:3318:d7a5:336a]) (user=surenb job=sendgmr) by 2002:a25:ad41:0:b0:da0:6216:7990 with SMTP id l1-20020a25ad41000000b00da062167990mr3869ybe.3.1698155268465; Tue, 24 Oct 2023 06:47:48 -0700 (PDT) Date: Tue, 24 Oct 2023 06:46:27 -0700 In-Reply-To: <20231024134637.3120277-1-surenb@google.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20231024134637.3120277-1-surenb@google.com> X-Mailer: git-send-email 2.42.0.758.gaed0368e0e-goog Message-ID: <20231024134637.3120277-31-surenb@google.com> Subject: [PATCH v2 30/39] 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, corbet@lwn.net, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, ldufour@linux.ibm.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, 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, shakeelb@google.com, songmuchun@bytedance.com, jbaron@akamai.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 Content-Type: text/plain; charset="UTF-8" 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 5a6202acffa3..002ee5d38fd5 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1701,6 +1701,32 @@ 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 -- 2.42.0.758.gaed0368e0e-goog