From nobody Fri Oct 10 21:10:45 2025 Received: from out-180.mta1.migadu.com (out-180.mta1.migadu.com [95.215.58.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 82F62248883 for ; Fri, 13 Jun 2025 03:06:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.180 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749783982; cv=none; b=Am06DoEP/7mMfN5EMa2c3AFiIiv/KuqrPaabK/Sm011ptKbEoQa36/m6xfnnhskc8ltMqQTxlTB10QprTxpD1lKxmAeJdYQnxNkS9SJtSkj1uwJnCvu5uLacAKJzXWjN+/UXz4juU02KiE76Bg2PXXK/uhq9moLXkKKQ+vdkSHk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749783982; c=relaxed/simple; bh=sA/cHPXepmhSQ4sf1CJGrbqHxcSeK1Ifu4NpXSLjcwI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=tie7TI/QpgAmLMeILQaGEs4+O65a26vFCFfI/Hm/4JxfdM0wA9h8cMC8xKTsxuCTDO4eqexavr9Bf7n8oldftgZgnwpKDExZjazSbgf/CpLtu+6PfUjb3BVAyi2hxvWgte+2f06COEDbXPC+2kXWS3MTtPgkvFl5OjlRhK/A13Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=cjEzBzVn; arc=none smtp.client-ip=95.215.58.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="cjEzBzVn" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1749783978; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=n1KqbN5j6IJTznE7UN7VxaAri/tZdWWDiyKWfIujmkA=; b=cjEzBzVnQN3XoxmjsLUuvaPi0fjOR7G6NRzIC9eUJXK0nCzokaA3geR9L662GweNhgj3MZ /E4JeDWdEc364JE5lkCXlI1vQMd7Qx2aDIWNr2pop4uPQIhS1I+WRX/1lWW8anEfcNoBDD 12X0vDh4qfPcWY5/KfCwGjzaMskKAB0= From: Hao Ge To: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Mike Rapoport , Richard Henderson , Matt Turner , Dennis Zhou , Tejun Heo , Christoph Lameter , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Kent Overstreet Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-s390@vger.kernel.org, Hao Ge , Hao Ge Subject: [PATCH v2 2/3] mm: replace ARCH_NEEDS_WEAK_PER_CPU with MODULE_NEEDS_WEAK_PER_CPU Date: Fri, 13 Jun 2025 11:05:06 +0800 Message-Id: <862093fa9c9a9e02ed5bae32488b6730aed71dc7.1749779391.git.gehao@kylinos.cn> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" From: Hao Ge As stated in the first patch of this patch series, we make ARCH_NEEDS_WEAK_PER_CPU a Kconfig option. Previously,ARCH_NEEDS_WEAK_PER_CPU was enclosed within the #if defined(MODULE) conditional block,and it was only needed for modules. So,replace all instances of ARCH_NEEDS_WEAK_PER_CPU in the kernel code with MODULE_NEEDS_WEAK_PER_CPU, Suggested-by: Suren Baghdasaryan Signed-off-by: Hao Ge --- arch/alpha/include/asm/percpu.h | 2 +- arch/s390/include/asm/percpu.h | 2 +- include/linux/alloc_tag.h | 6 +++--- include/linux/percpu-defs.h | 4 ++-- 4 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/alpha/include/asm/percpu.h b/arch/alpha/include/asm/percp= u.h index 6923249f2d49..b164d3720e9e 100644 --- a/arch/alpha/include/asm/percpu.h +++ b/arch/alpha/include/asm/percpu.h @@ -11,7 +11,7 @@ * Always use weak definitions for percpu variables in modules. */ #if defined(MODULE) && defined(CONFIG_SMP) -#define ARCH_NEEDS_WEAK_PER_CPU +#define MODULE_NEEDS_WEAK_PER_CPU #endif =20 #include diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h index 84f6b8357b45..0afc7ce9c26f 100644 --- a/arch/s390/include/asm/percpu.h +++ b/arch/s390/include/asm/percpu.h @@ -18,7 +18,7 @@ * generate external references. */ #if defined(MODULE) -#define ARCH_NEEDS_WEAK_PER_CPU +#define MODULE_NEEDS_WEAK_PER_CPU #endif =20 /* diff --git a/include/linux/alloc_tag.h b/include/linux/alloc_tag.h index 8f7931eb7d16..f349cca0ebed 100644 --- a/include/linux/alloc_tag.h +++ b/include/linux/alloc_tag.h @@ -88,7 +88,7 @@ static inline struct alloc_tag *ct_to_alloc_tag(struct co= detag *ct) return container_of(ct, struct alloc_tag, ct); } =20 -#ifdef ARCH_NEEDS_WEAK_PER_CPU +#ifdef MODULE_NEEDS_WEAK_PER_CPU /* * When percpu variables are required to be defined as weak, static percpu * variables can't be used inside a function (see comments for DECLARE_PER= _CPU_SECTION). @@ -102,7 +102,7 @@ DECLARE_PER_CPU(struct alloc_tag_counters, _shared_allo= c_tag); .ct =3D CODE_TAG_INIT, \ .counters =3D &_shared_alloc_tag }; =20 -#else /* ARCH_NEEDS_WEAK_PER_CPU */ +#else /* MODULE_NEEDS_WEAK_PER_CPU */ =20 #ifdef MODULE =20 @@ -123,7 +123,7 @@ DECLARE_PER_CPU(struct alloc_tag_counters, _shared_allo= c_tag); =20 #endif /* MODULE */ =20 -#endif /* ARCH_NEEDS_WEAK_PER_CPU */ +#endif /* MODULE_NEEDS_WEAK_PER_CPU */ =20 DECLARE_STATIC_KEY_MAYBE(CONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT, mem_alloc_profiling_key); diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h index 0aeb0e276a3e..b4ecfc3a7b2b 100644 --- a/include/linux/percpu-defs.h +++ b/include/linux/percpu-defs.h @@ -64,13 +64,13 @@ * 2. Static percpu variables cannot be defined inside a function. * * Archs which need weak percpu definitions should define - * ARCH_NEEDS_WEAK_PER_CPU in asm/percpu.h when necessary. + * MODULE_NEEDS_WEAK_PER_CPU in asm/percpu.h when necessary. * * To ensure that the generic code observes the above two * restrictions, if CONFIG_DEBUG_FORCE_WEAK_PER_CPU is set weak * definition is used for all cases. */ -#if defined(ARCH_NEEDS_WEAK_PER_CPU) || defined(CONFIG_DEBUG_FORCE_WEAK_PE= R_CPU) +#if defined(MODULE_NEEDS_WEAK_PER_CPU) || defined(CONFIG_DEBUG_FORCE_WEAK_= PER_CPU) /* * __pcpu_scope_* dummy variable is used to enforce scope. It * receives the static modifier when it's used in front of --=20 2.25.1