From patchwork Wed Mar 19 00:15:18 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joe Damato X-Patchwork-Id: 14021768 Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) (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 DCE501B395F for ; Wed, 19 Mar 2025 00:15:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742343350; cv=none; b=FpAZkjY38fMlGAchXeyUswF112Y5fSSD9T2tn8ZA38gt5PpUAv1QDWFIkkRkrVPvymBvhJFsVtLbNiK3wR2A3XwFeUTvlmTWr3Q+6Rj7NYFUTp6ZXFK044kymayCCWKLkHlAeAWiKqlNSO3dnnwSHG+Emr4u4R9QhkEMfyzmOYY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742343350; c=relaxed/simple; bh=vqb5bSp3KtgrIHH2C10i+ZCVORS25O8aQdSoxaGrdX4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=N+QhHAJMcaUN0aAjfEvATAN1HC+UNFS4di7zPbwOAIz0ESlTKt5ofm02RgUR/G8jzRmZdQbL/dhbx2bOmzsD6oI1lGGIlQYkNkFgTw9pzRnj0grIiFsoAVBmVpY6VkWfKdPMwnbQSV5kW+QT55YRGWSM7RfdL+CwnLQQeY5E6ww= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=fastly.com; spf=pass smtp.mailfrom=fastly.com; dkim=pass (1024-bit key) header.d=fastly.com header.i=@fastly.com header.b=LdwLkSF8; arc=none smtp.client-ip=209.85.214.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=fastly.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fastly.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=fastly.com header.i=@fastly.com header.b="LdwLkSF8" Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-22548a28d0cso18570605ad.3 for ; Tue, 18 Mar 2025 17:15:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fastly.com; s=google; t=1742343348; x=1742948148; 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=2XqGZqCGsxMqM6QeHlFNqgLyn7L0jWSrp5tLsnvgx2I=; b=LdwLkSF8TBzC36dt6CntOhHl+LeUMOlyXozok9/QMwsLzJCbZQtUiV5ZsMTPkYtqcJ 4vcWfNjrYyGyxoOe5/0cRUNiClXg+CCpU+5N+tyoxTI6DfO2pupR5WhY5mA3NEiF58ul 8MrOhgdbfV7a7Eii7fwAIIFWtUdit226D4msI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742343348; x=1742948148; 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=2XqGZqCGsxMqM6QeHlFNqgLyn7L0jWSrp5tLsnvgx2I=; b=AF6acbT/6H29s6jNvGQ4jnYsgktoJBAurLBAkv2nMiwia3ooyNxxirGyHNz1icuPh1 IeemB8+L/n2HxxjIDoD6rsYKwHZiB2Cw6ItOx0hmPsNj1NjgSKLIthDAYaDP2KS7W8Fq HX4nnjpDi36GCJZqH1vVn9t4D8YK6iN1O/JPajvYbmHwAC/cAIs0NiTMrlgEJNjtBCHX pvrWsnsHkS8UJAfMHsv2rQcz+WIMkRxujj6gOOtLVgTBjqAuicVvQKBgb0smxnDGHvLF JAbCaOssxuQCk9ZlI40ewjAEfrnulvUSD7ZRlMUVY7Jh8slB7p+BsRE1er1vhaDUkFh/ mLww== X-Forwarded-Encrypted: i=1; AJvYcCW98fZyzvNmPJE3BxUeZemoURwIawd6Zm75HTu2Is9TrTUzlHipATkmeN9xsM9L11TV8Gd5+ZOoa/FN5u7TYA8=@vger.kernel.org X-Gm-Message-State: AOJu0Yx621w3fyx5Bt0nKA736h9sKQwuKm1tqr1vQotpAV/dV2kVKrUn rhGqfTORczFtuIPnFhReUD6qWy9AsybA4JH1SP1gYcUDTmG0pa4G6iD3h9uv1Rs= X-Gm-Gg: ASbGncuJxSzjPKrJ+GXjozwudBPsl5TsfsqP7+MCYj5hJBfCqyzFL00h7lboJG9p+BL LGVw7VN7QDVgBiDtDf5Ndfl944r9/FAwjrqVbFLSQCjYMc1D8+ZQtAWd0TW/5FMGeZlJ9Nazo65 +WQZsgMT0qUD0pUFG67LpKi8RjR8VA5cLzOa4x0sUKu5XlkP87Z0hJ0FAKjmcDbTNMGv5I/eJAY 6Mv8GXxMkTnFgqtYnj2x57xp3ZfrcmCZKK4Z0Jh+UxqxSD40LqrBkZXq8MTGXc2Yqv+isHIUv3M Loek0VDd7Jb3/1qPTnYIYkZD2sJer2CFbp1KZj8EE7cB9W46JtXB X-Google-Smtp-Source: AGHT+IEmJYpbp+6vVhqsiGvsZq35cbhyVslRXzs04bm/SNmdXK2RzQx72NbvXgQ96Ga+Vw4Kk+NJMQ== X-Received: by 2002:a17:903:22cd:b0:223:58ea:6fdf with SMTP id d9443c01a7336-22649a3c6a7mr8745335ad.28.1742343348190; Tue, 18 Mar 2025 17:15:48 -0700 (PDT) Received: from localhost.localdomain ([2620:11a:c019:0:65e:3115:2f58:c5fd]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c68a4876sm101281375ad.70.2025.03.18.17.15.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Mar 2025 17:15:47 -0700 (PDT) From: Joe Damato To: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, asml.silence@gmail.com, linux-fsdevel@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, horms@kernel.org, linux-api@vger.kernel.org, linux-arch@vger.kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz, kuba@kernel.org, shuah@kernel.org, sdf@fomichev.me, mingo@redhat.com, arnd@arndb.de, brauner@kernel.org, akpm@linux-foundation.org, tglx@linutronix.de, jolsa@kernel.org, linux-kselftest@vger.kernel.org, Joe Damato Subject: [RFC -next 07/10] fs: Add sendfile2 which accepts a flags argument Date: Wed, 19 Mar 2025 00:15:18 +0000 Message-ID: <20250319001521.53249-8-jdamato@fastly.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250319001521.53249-1-jdamato@fastly.com> References: <20250319001521.53249-1-jdamato@fastly.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add sendfile2 which is similar to sendfile64, but takes a flags argument. Signed-off-by: Joe Damato --- fs/read_write.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/fs/read_write.c b/fs/read_write.c index 03d2a93c3d1b..057e5f37645d 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1424,6 +1424,23 @@ SYSCALL_DEFINE4(sendfile64, int, out_fd, int, in_fd, loff_t __user *, offset, si return do_sendfile(out_fd, in_fd, NULL, count, 0, 0); } +SYSCALL_DEFINE5(sendfile2, int, out_fd, int, in_fd, loff_t __user *, offset, size_t, count, int, flags) +{ + loff_t pos; + ssize_t ret; + + if (offset) { + if (unlikely(copy_from_user(&pos, offset, sizeof(loff_t)))) + return -EFAULT; + ret = do_sendfile(out_fd, in_fd, &pos, count, 0, flags); + if (unlikely(put_user(pos, offset))) + return -EFAULT; + return ret; + } + + return do_sendfile(out_fd, in_fd, NULL, count, 0, flags); +} + #ifdef CONFIG_COMPAT COMPAT_SYSCALL_DEFINE4(sendfile, int, out_fd, int, in_fd, compat_off_t __user *, offset, compat_size_t, count)