From patchwork Mon Feb 12 21:39:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suren Baghdasaryan X-Patchwork-Id: 13554101 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 C61015A7B3 for ; Mon, 12 Feb 2024 21:40:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707774034; cv=none; b=rclhtnMgH7259o3KODSjhxgUqxlVT3Z+eimCdXgV7Wp1SeBKXNTziJBeqZYwnmB9ErJ6BB25AYwQXnk86ZkVkowt5JEcXpfc/eDhwdPo27bTe1oxYZn5C/Ii4HAwgS63Ojs6dOBx9jwQEStCFIji9E1OQSHKwQoSRFCv939KDvo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707774034; c=relaxed/simple; bh=agT5b25ACG41VKpR8q87SrJ3Bcb+qFiIEtA30AzV538=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=YJOME5Ax78tzaSnKMjb4ZOX8bgYKM8TU4AtAcG182u+tpWzMKxG1o6W81InIBq+KODnz8cdGVWEjRY66Wz4cFil443UR4ID5hc9YbJfdUwkJRxqNWYMOymKycPEuUdXRb33qKWSlrkOP61UOMfJ1acBjwiyGhU9UCFZt9ATRNZY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--surenb.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=lPzM8CUh; arc=none smtp.client-ip=209.85.128.202 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="lPzM8CUh" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-604ab15463aso4584137b3.3 for ; Mon, 12 Feb 2024 13:40:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1707774031; x=1708378831; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=X07z1RjJe29sLMh5N/vKSXU8uipRKYcH64glAbq+0r0=; b=lPzM8CUhyrv/sPst6GWvy6n9rv20CXuQ/4zauYIxESdrS2e2oB2YyltlxNYRqZELJb 3Y/9ffwm1BbBJlPShZ1vB3Y6vjjuiwYOzEBK/lVXxRuoRd2w3mdiIe6SgufsOP0ggnEv //jwQp8FI7R7NqRIX5QBKXIkWU/tzVLtP9ERHhZowRn0AohY1d/3H+p7sZiKXG5Wky5Z g30I5jKc0TzaAvbZxQTIV+1zKgTbqfLF9NJi9+2H9YR/paoKEJwC0Y/Ww7VlTp+ieXpB l4frLkDMMBdyyhwpEmkde49wedJgoqTs4fuWb66SoZAEY/ZddeT0lsRPtBebBHaMKZSi yh7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707774031; x=1708378831; 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=X07z1RjJe29sLMh5N/vKSXU8uipRKYcH64glAbq+0r0=; b=ncZ+7/1wlP3k5bibL7uxYkeESLi3TmVNGJKLlnLe7LEMsRpT3RkwCh3ZPdBMk4UCGy bfY/N7QhfOMUkgVnM2oZXkTqBzt0uQV7q+FLtt8dzoP0Pacg2xTMrGHju8WbviETJpY0 BTdCh849mrrjlJIGmoa0EOMyLEQhQWk2RPrD09KLp2jqZjFfUPCnyudyExxndPCnLv0A xB/HRTFX2D2wHCVXZJE5aoHlBtM4Wa8jIZ+kxdNpw86NN85SDDrhrwAtO12Hu1qFhmQW pw/DOZd3crH52z5RgqERnx+DiWMR6BhHvrDokUmxjDdVPn/i+eTZ33AyasU92S99NOqY U9iQ== X-Forwarded-Encrypted: i=1; AJvYcCWoZBJj+JQWeytJ3OmCTwhwT90CTQrF2PkDtq+DFsvP3Jr3WFtVHiCQR1eVaVBfuyFGEcJpnfKruo0j9sAQwvDDJWwl4yF0nb7TRWyONA== X-Gm-Message-State: AOJu0Ywdj11YFi3CY/mhBVmW3k80HwtGsPqNlyZBoreNQJVS41ZPExgH bMmnzbsS8FEbQTyy95yqfq4y94BqumF8Cq5R3aZ92aoQBjeLD2p/6uALbv0SG4InaRpOlf01Y/S 93w== X-Google-Smtp-Source: AGHT+IE+9v5iTSehfGXvFLsyFgeYeTOkKmnm1/9Fi71HMokK15QIurDQiuu9x1J7ZwyZ5mBIdOmgWIrIEcg= X-Received: from surenb-desktop.mtv.corp.google.com ([2620:15c:211:201:b848:2b3f:be49:9cbc]) (user=surenb job=sendgmr) by 2002:a05:6902:709:b0:dc7:59d9:7b46 with SMTP id k9-20020a056902070900b00dc759d97b46mr291099ybt.3.1707774030642; Mon, 12 Feb 2024 13:40:30 -0800 (PST) Date: Mon, 12 Feb 2024 13:39:13 -0800 In-Reply-To: <20240212213922.783301-1-surenb@google.com> Precedence: bulk X-Mailing-List: linux-modules@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240212213922.783301-1-surenb@google.com> X-Mailer: git-send-email 2.43.0.687.g38aa6559b0-goog Message-ID: <20240212213922.783301-28-surenb@google.com> Subject: [PATCH v3 27/35] 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, 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 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..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