From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 41385330662; Sat, 23 May 2026 17:56:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779558993; cv=none; b=GoyTaCRI91dPSM1fM4JY/+pNFoZh3DQk7s4UHPR88cHz64iW8Uo5RYJpmmgMcc7YzwMGDRjmQ2OE0Z66Bo9lWRvlzPGRwDDPtbNHvQxhJ+5pcII7/+glZQden7N5BNa0LC2+lZaaIZW0TweMD2txTDuj8HrGe0qDqBSzrxtZyQU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779558993; c=relaxed/simple; bh=SBC0xcwck7YqyR4+c7ort1g4YhFB6ZS5sPCyTtNomsk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=dGZQon20cdrY7hGVO6ojcYud1Q2a6W3e3ZeSIC5uMSnk0eQqHm0VKhd++cJg0h9rauepHD43GYkZEddIkd/hCOBXidsjl8J+pd6Dhukk+kRok5VMLJf2TKgkHfXYxmwTTGQ5f5beHus3O5B2uBFDWE6Kp1bR7sgfaPAHWZYCYV0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nCSdfqNI; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nCSdfqNI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2CA291F00A3A; Sat, 23 May 2026 17:56:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779558992; bh=avaAlGi99keULPCZbynNTnKAsRLlbRGsrJ8jPwcvMgE=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=nCSdfqNIbpAILIl1hkV8eRrcN1BW63mPl1SXXJDMC2qdR5RyaxxJGoqPP46gwgR1S +23QGRthqb5rkclytzrT4aNNh23BqD/SFor3S4bTV7lcsIexjJFjf/nTcfVKNnZdDl zm9CpBj4O92KD7M+sFppTDfYRg0P+I0San410HCOyA9/hucFpDsekC0skrneiMae8f s/FlJUMcGqpZ1eE2hEooc/JDON11jyXAJlM8GzjJCY6gaCzDLXOtxw70PzbGh78UeZ t8GLZb8jdivXwzqrjSaSh/j10uwgwnPH68J080OEN8uh3h/W49iDDQ35JPS1eZv99G yvks9jaAUnw4w== From: "Mike Rapoport (Microsoft)" Date: Sat, 23 May 2026 20:54:27 +0300 Subject: [PATCH 15/17] configfs: replace __get_free_pages() with kzalloc() Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260523-b4-fs-v1-15-275e36a83f0e@kernel.org> References: <20260523-b4-fs-v1-0-275e36a83f0e@kernel.org> In-Reply-To: <20260523-b4-fs-v1-0-275e36a83f0e@kernel.org> To: Jan Kara , Mark Fasheh , Joel Becker , Joseph Qi , Ryusuke Konishi , Viacheslav Dubeyko , Trond Myklebust , Anna Schumaker , Chuck Lever , Jeff Layton , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Alexander Viro , Christian Brauner , Jan Kara , Dave Kleikamp , Theodore Ts'o , Miklos Szeredi , Andreas Hindborg , Breno Leitao , Kees Cook , "Tigran A. Aivazian" Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, ocfs2-devel@lists.linux.dev, linux-nilfs@vger.kernel.org, linux-nfs@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-ext4@vger.kernel.org, linux-mm@kvack.org, "Mike Rapoport (Microsoft)" X-Mailer: b4 0.15.2 configfs allocates staging buffers __get_free_pages(). kmalloc() is a better API for such use and it also provides better scalability and more debugging possibilities. Replace use of __get_free_pages() with kzalloc(). Signed-off-by: Mike Rapoport (Microsoft) --- fs/configfs/file.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/fs/configfs/file.c b/fs/configfs/file.c index ef8c3cd10cc6..a48cece775a3 100644 --- a/fs/configfs/file.c +++ b/fs/configfs/file.c @@ -59,7 +59,7 @@ static int fill_read_buffer(struct file *file, struct configfs_buffer *buffer) ssize_t count = -ENOENT; if (!buffer->page) - buffer->page = (char *) get_zeroed_page(GFP_KERNEL); + buffer->page = kzalloc(PAGE_SIZE, GFP_KERNEL); if (!buffer->page) return -ENOMEM; @@ -184,7 +184,7 @@ static int fill_write_buffer(struct configfs_buffer *buffer, int copied; if (!buffer->page) - buffer->page = (char *)__get_free_pages(GFP_KERNEL, 0); + buffer->page = kmalloc(PAGE_SIZE, GFP_KERNEL); if (!buffer->page) return -ENOMEM; @@ -381,8 +381,7 @@ static int configfs_release(struct inode *inode, struct file *filp) struct configfs_buffer *buffer = filp->private_data; module_put(buffer->owner); - if (buffer->page) - free_page((unsigned long)buffer->page); + kfree(buffer->page); mutex_destroy(&buffer->mutex); kfree(buffer); return 0; -- 2.53.0