From nobody Sun Feb 8 09:03:13 2026 Received: from mail-io1-f53.google.com (mail-io1-f53.google.com [209.85.166.53]) (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 DA6521327E8 for ; Thu, 11 Apr 2024 15:34:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712849642; cv=none; b=gpid+Y5k6B6sDARF36KVeeK5TZ4rAcZc6w/cjZblkV5I6+RC7EDfflGwpldv309mY88ZDXRv08xanws6Glq/n04cE+YLG2WnesvSDWL4AmiDrXRZBfafcQL3yIwLByX6e4yUH6CfhqzUBmvrGhhODHta5FwkhFSMIUIbUC5X9TU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712849642; c=relaxed/simple; bh=7sv9860TXH7IOdatpF5LRD+bbd/JtMyPBrPs8cfsoNo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EdY51wG/RGa1o6XEfRRRpHMa96YGPXuety7Mjn3wuuBpOlj8Lpyta6ZWalEmOwpfqWUYsu9LrLVPQvaTyUQ8u94D9lNRHYsc6w3gwFhupw0soC5+dspvZqpfWvrEC6v/YR3bmnCVqPfbMQK3mlzujBU0YIHYzb2nzyjhBANHy0Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=r53+Po80; arc=none smtp.client-ip=209.85.166.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="r53+Po80" Received: by mail-io1-f53.google.com with SMTP id ca18e2360f4ac-7d5ed700c2dso16131339f.0 for ; Thu, 11 Apr 2024 08:34:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1712849639; x=1713454439; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=iNMxscXeqQTEhlFBdcHasiHVnqmxq8lHL2PENTNUxmc=; b=r53+Po80cL3mUDkRbz1JSxAesj7jsoNBCahgXZ+Dg/6DIufh4s1crdYCJjyhYD4oDW bpmlT/F8SqhaNuybFubDUA1W4if2BdLPPwlknS2xw5+nLdN4jREoyFQ40s4w0nlRjNy5 znE3no9MHoJIwwvvJmyLo0oxNXJk0gj9Q8G3Rsoe4JjIRGhLhC7cgV5AZxBkRp4kdEi4 zPRrXCdWNnYpHjr0HAgiJUmdXo+CF8uehHEaoOjQuaxZIKq8tZCME6Ay8Qwt/ovH23/R YQ9URpfgwAodm++3+UoRAACM6H9dt4X7C/1jI3IeGH6ZjeWlull7yC4HqUabZbkFWkcS WtBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712849639; x=1713454439; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=iNMxscXeqQTEhlFBdcHasiHVnqmxq8lHL2PENTNUxmc=; b=lVAUv24D1vfvWj58UyXNvH/8OHnY0snMIYuaGBLP9uNynO+388X1YLv3c91RzLs5JW ytUUuiyfNbDWssGuLwI+TVDVU58gwcq1+tMse7ivxCCfvgz0ypeJP4XbZeSy9tRpYEST iFMf0J1bcn6RbqNL2tohgkFdzTUfL4uGHWBLk6UpDL6Rb65Ndk1hqiSyNktu4pbGcbmn 84ldN4lUVeFKh3KdwStmo+Vwuf59rfwa1ScJsMN7edAuldrUbUSA0oXRevX3QTgAjaaP YHwy4d4ELqG9I5os6Jm0HYR3VOsHMoLhOmj/boeDIiBeCL+bLlF+SADpJGtVZ8mMRxG2 ZYzQ== X-Gm-Message-State: AOJu0Yy0GLXy8KI/414rwP90Y9UU4R+iH/lFtb/B7OFXAKmczaL+pHV0 qGsKvymEYaUuWXoFCc8NxuD+5PXl694aRthtPkal5AuxoCR5pUHA1amg5hPR5MUsjRgOk0ujA2+ C X-Google-Smtp-Source: AGHT+IH/bYpC5CvfGe5kVS6YqlavyxZW4EpB8OHIj2cH0URM+diHGzI5+V2/eT3s5P+JILweSe//2g== X-Received: by 2002:a6b:f312:0:b0:7d5:de23:13a9 with SMTP id m18-20020a6bf312000000b007d5de2313a9mr154917ioh.1.1712849639318; Thu, 11 Apr 2024 08:33:59 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.33.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:33:58 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 081/437] gcov: convert to read/write iterators Date: Thu, 11 Apr 2024 09:13:41 -0600 Message-ID: <20240411153126.16201-82-axboe@kernel.dk> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240411153126.16201-1-axboe@kernel.dk> References: <20240411153126.16201-1-axboe@kernel.dk> 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 Content-Type: text/plain; charset="utf-8" Signed-off-by: Jens Axboe --- kernel/gcov/fs.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c index 01520689b57c..02f966688ca3 100644 --- a/kernel/gcov/fs.c +++ b/kernel/gcov/fs.c @@ -379,14 +379,13 @@ static void remove_node(struct gcov_node *node); * corresponding file. If all associated object files have been unloaded, * remove the debug fs node as well. */ -static ssize_t gcov_seq_write(struct file *file, const char __user *addr, - size_t len, loff_t *pos) +static ssize_t gcov_seq_write(struct kiocb *iocb, struct iov_iter *from) { struct seq_file *seq; struct gcov_info *info; struct gcov_node *node; =20 - seq =3D file->private_data; + seq =3D iocb->ki_filp->private_data; info =3D gcov_iter_get_info(seq->private); mutex_lock(&node_lock); node =3D get_node_by_name(gcov_info_filename(info)); @@ -401,7 +400,7 @@ static ssize_t gcov_seq_write(struct file *file, const = char __user *addr, gcov_info_reset(info); mutex_unlock(&node_lock); =20 - return len; + return iov_iter_count(from); } =20 /* @@ -511,9 +510,9 @@ static void add_links(struct gcov_node *node, struct de= ntry *parent) static const struct file_operations gcov_data_fops =3D { .open =3D gcov_seq_open, .release =3D gcov_seq_release, - .read =3D seq_read, + .read_iter =3D seq_read_iter, .llseek =3D seq_lseek, - .write =3D gcov_seq_write, + .write_iter =3D gcov_seq_write, }; =20 /* Basic initialization of a new node. */ @@ -632,8 +631,7 @@ static struct gcov_node *get_child_by_name(struct gcov_= node *parent, * write() implementation for reset file. Reset all profiling data to zero * and remove nodes for which all associated object files are unloaded. */ -static ssize_t reset_write(struct file *file, const char __user *addr, - size_t len, loff_t *pos) +static ssize_t reset_write(struct kiocb *iocb, struct iov_iter *from) { struct gcov_node *node; =20 @@ -650,20 +648,19 @@ static ssize_t reset_write(struct file *file, const c= har __user *addr, } mutex_unlock(&node_lock); =20 - return len; + return iov_iter_count(from); } =20 /* read() implementation for reset file. Unused. */ -static ssize_t reset_read(struct file *file, char __user *addr, size_t len, - loff_t *pos) +static ssize_t reset_read(struct kiocb *iocb, struct iov_iter *to) { /* Allow read operation so that a recursive copy won't fail. */ return 0; } =20 static const struct file_operations gcov_reset_fops =3D { - .write =3D reset_write, - .read =3D reset_read, + .write_iter =3D reset_write, + .read_iter =3D reset_read, .llseek =3D noop_llseek, }; =20 --=20 2.43.0