From patchwork Wed Mar 19 00:15:20 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joe Damato X-Patchwork-Id: 14021770 Received: from mail-pl1-f172.google.com (mail-pl1-f172.google.com [209.85.214.172]) (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 5CC381C6FE9 for ; Wed, 19 Mar 2025 00:15:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742343354; cv=none; b=pYaeqVshUKCgEon/2A9qVeUAUFd+V0JgNm/n1LRn6vC8VPIADeAw7N7rdr41zSuJNILTFrf7uJODD65gAoWw7ah9q5rXOF4kM6PNWPJ4M6mwulRs/Sd2Uh7jhEEQaTgpu0CB/bTQbKm2T4EkQCOFLDhWu6IT5yiSO7NHGjveWxw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742343354; c=relaxed/simple; bh=HrvGzL7SpIoKoXo8zFH3/CZ1R1e6uAmq2pNYC7W0pqc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=awFghX89h2AWmCGeAOK/lPh7FRSQtMjp6exXRA6AbV1JiNEe3VJK3tYl5kfT2DOqrjMiFCRyuYwf1D3vNZIL+JQoCisv++SZGY3HmRjS3tCI6Z8LbPtKRkdDJRAQPHfHmsu0tzySkmacuxbQ2jiZa8G2KWufuH05aVKc112pxnU= 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=m/qlmE01; arc=none smtp.client-ip=209.85.214.172 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="m/qlmE01" Received: by mail-pl1-f172.google.com with SMTP id d9443c01a7336-224341bbc1dso119940095ad.3 for ; Tue, 18 Mar 2025 17:15:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fastly.com; s=google; t=1742343352; x=1742948152; 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=ZB6CanLMGY6mZXQkGX+cRiOusq9nkfF+ZzLXVJxU5Ns=; b=m/qlmE01QBk73ZOy9TB4yXQm4sUA0jAbyaT/jF8KepjyZbRTrU0uBgcxtOf6cVlu5c ANbs1eibefl9/qap2HWUJfRvQyAWAnUA2eygVhhEYk+N/f6lvrlN1EKxZvE1TQikOfW6 7i4/ftSypVjjHjHpcaCoIx6Qy13ufcEWt+RBQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742343352; x=1742948152; 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=ZB6CanLMGY6mZXQkGX+cRiOusq9nkfF+ZzLXVJxU5Ns=; b=mNCcbUwjubN8eciiL46GR9DvBMcApLbXGzDlb91f+AJJzmQaQyAQ1HvYypNYyN7Sxf YHNWmJ6RNZMBGPVMuMgnxUlDT4sGMdptWByeltuvIl0cVliQxG5V/SQpN/fG7zB4DPdi uC73YJiQ/ER/t2fer/B4J/lJ4ua2z+2Ap6oFGNZDbZylQZenCy7Byov6EpLTuJ9nkw/7 rwj0GswpHEpMxLp6nm3kiZBDOWvMhFSr01DgvDZq6eJ96Qowh7lmPDg1p7BHGZVbGGEF VhCYoFC+sq7btl9Baj+7Li9hQ6wjxn0nxaehH6H37h1ClLJrcXGAjjZUnxAaTsCTD24Z 53nQ== X-Forwarded-Encrypted: i=1; AJvYcCWjmT/MJvtccJ5whla5qg/L+sXzcMc9YURc94WK+F/o7wxam9KPJoq8RB971hc++Eo8By7M2Qaa8c4FUIW3ZxU=@vger.kernel.org X-Gm-Message-State: AOJu0YzdmQ+ZjmE3lUtN9hiAWCge3dq+XlU6dP9R2bDMG7l46Ox8ujl6 3epi3VFXwEsKHTFysJ9ADbAVwUKgUYNTVJ4RQO86CZn8Cjq6m/j/Dvkz1p9pC00= X-Gm-Gg: ASbGncukKd+C5rb/730mJFUUv4Mjv8L0LUOgX7F5rPgZzBf51weS+fx5063XInws8P/ hM5YAdVhaVG8XSuLmVaUiK4zvd2iVh7qtSQoxED4TFIcF86ndJtSfjeKrGjAi26qKmenFRczO7U eERXad+NhOPBkRjgvRF0sY6vSUCDhPJ5ow1ozKIfL/HP75zpzvy+M8jalslr++EvQCdyjs25lWv Omw+NYfiKXxGfvk/+5J4HuJWIAv/XAqISpD9zUFXkYprpuB4dwmD6ESfI2TL2c3ED0A+21JWd4p 4SPH3m8eDu1QLjLFeKLYtF9DUn1YUC8LdzoGLko7ZK9kt6fUTZsc X-Google-Smtp-Source: AGHT+IGEjgNr8OXukMKpiMZiFHzun0R5NaGz3kNl/a4hrPUj8a+pmGVK3Inx5pRS8JA4nLBMKEl0Gg== X-Received: by 2002:a17:902:db12:b0:223:49cb:5eaa with SMTP id d9443c01a7336-22649a46a18mr10979595ad.35.1742343351630; Tue, 18 Mar 2025 17:15:51 -0700 (PDT) Received: from localhost.localdomain ([2620:11a:c019:0:65e:3115:2f58:c5fd]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c68a4876sm101281375ad.70.2025.03.18.17.15.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Mar 2025 17:15:51 -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 09/10] fs: Add sendfile2 syscall Date: Wed, 19 Mar 2025 00:15:20 +0000 Message-ID: <20250319001521.53249-10-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 The sendfile2 system call is similar to sendfile64, but takes a flags argument allowing the user to select either a default sendfile or for sendfile to generate zerocopy notifications similar to MSG_ZEROCOPY and sendmsg. Signed-off-by: Joe Damato --- arch/alpha/kernel/syscalls/syscall.tbl | 1 + arch/arm/tools/syscall.tbl | 1 + arch/arm64/tools/syscall_32.tbl | 1 + arch/m68k/kernel/syscalls/syscall.tbl | 1 + arch/microblaze/kernel/syscalls/syscall.tbl | 1 + arch/mips/kernel/syscalls/syscall_n32.tbl | 1 + arch/mips/kernel/syscalls/syscall_n64.tbl | 1 + arch/mips/kernel/syscalls/syscall_o32.tbl | 1 + arch/parisc/kernel/syscalls/syscall.tbl | 1 + arch/powerpc/kernel/syscalls/syscall.tbl | 1 + arch/s390/kernel/syscalls/syscall.tbl | 1 + arch/sh/kernel/syscalls/syscall.tbl | 1 + arch/sparc/kernel/syscalls/syscall.tbl | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + arch/xtensa/kernel/syscalls/syscall.tbl | 1 + include/linux/syscalls.h | 2 ++ include/uapi/asm-generic/unistd.h | 4 +++- scripts/syscall.tbl | 1 + 19 files changed, 22 insertions(+), 1 deletion(-) diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl index c59d53d6d3f3..124313c745b6 100644 --- a/arch/alpha/kernel/syscalls/syscall.tbl +++ b/arch/alpha/kernel/syscalls/syscall.tbl @@ -506,3 +506,4 @@ 574 common getxattrat sys_getxattrat 575 common listxattrat sys_listxattrat 576 common removexattrat sys_removexattrat +577 common sendfile2 sys_sendfile2 diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index 49eeb2ad8dbd..ca61b5792148 100644 --- a/arch/arm/tools/syscall.tbl +++ b/arch/arm/tools/syscall.tbl @@ -481,3 +481,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/arm64/tools/syscall_32.tbl b/arch/arm64/tools/syscall_32.tbl index 69a829912a05..71695a61a1df 100644 --- a/arch/arm64/tools/syscall_32.tbl +++ b/arch/arm64/tools/syscall_32.tbl @@ -478,3 +478,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl index f5ed71f1910d..6096a22b4472 100644 --- a/arch/m68k/kernel/syscalls/syscall.tbl +++ b/arch/m68k/kernel/syscalls/syscall.tbl @@ -466,3 +466,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl index 680f568b77f2..0429dc26ceee 100644 --- a/arch/microblaze/kernel/syscalls/syscall.tbl +++ b/arch/microblaze/kernel/syscalls/syscall.tbl @@ -472,3 +472,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index 0b9b7e25b69a..f6571c8ecb15 100644 --- a/arch/mips/kernel/syscalls/syscall_n32.tbl +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl @@ -405,3 +405,4 @@ 464 n32 getxattrat sys_getxattrat 465 n32 listxattrat sys_listxattrat 466 n32 removexattrat sys_removexattrat +467 n32 sendfile2 sys_sendfile2 diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl index c844cd5cda62..532ce99478ee 100644 --- a/arch/mips/kernel/syscalls/syscall_n64.tbl +++ b/arch/mips/kernel/syscalls/syscall_n64.tbl @@ -381,3 +381,4 @@ 464 n64 getxattrat sys_getxattrat 465 n64 listxattrat sys_listxattrat 466 n64 removexattrat sys_removexattrat +467 n64 sendfile2 sys_sendfile2 diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 349b8aad1159..9cacbbff6b12 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -454,3 +454,4 @@ 464 o32 getxattrat sys_getxattrat 465 o32 listxattrat sys_listxattrat 466 o32 removexattrat sys_removexattrat +467 o32 sendfile2 sys_sendfile2 diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index d9fc94c86965..ca5a3e6eb8f3 100644 --- a/arch/parisc/kernel/syscalls/syscall.tbl +++ b/arch/parisc/kernel/syscalls/syscall.tbl @@ -465,3 +465,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index d8b4ab78bef0..450392aed1eb 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -557,3 +557,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl index e9115b4d8b63..e7e1b16f4d39 100644 --- a/arch/s390/kernel/syscalls/syscall.tbl +++ b/arch/s390/kernel/syscalls/syscall.tbl @@ -469,3 +469,4 @@ 464 common getxattrat sys_getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat sys_removexattrat +467 64 sendfile2 sys_sendfile2 - diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl index c8cad33bf250..c75a0e69c033 100644 --- a/arch/sh/kernel/syscalls/syscall.tbl +++ b/arch/sh/kernel/syscalls/syscall.tbl @@ -470,3 +470,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index 727f99d333b3..fd15465b5330 100644 --- a/arch/sparc/kernel/syscalls/syscall.tbl +++ b/arch/sparc/kernel/syscalls/syscall.tbl @@ -512,3 +512,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 4d0fb2fba7e2..f711ee6068ec 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -472,3 +472,4 @@ 464 i386 getxattrat sys_getxattrat 465 i386 listxattrat sys_listxattrat 466 i386 removexattrat sys_removexattrat +467 i386 sendfile2 sys_sendfile2 diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index 5eb708bff1c7..0ba4edb1e4c0 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -390,6 +390,7 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 # # Due to a historical design error, certain syscalls are numbered differently diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl index 37effc1b134e..142597c92baf 100644 --- a/arch/xtensa/kernel/syscalls/syscall.tbl +++ b/arch/xtensa/kernel/syscalls/syscall.tbl @@ -437,3 +437,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2 diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index c6333204d451..3ee0e997d6c6 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -491,6 +491,8 @@ asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, unsigned long vlen, unsigned long pos_l, unsigned long pos_h); asmlinkage long sys_sendfile64(int out_fd, int in_fd, loff_t __user *offset, size_t count); +asmlinkage long sys_sendfile2(int out_fd, int in_fd, + loff_t __user *offset, size_t count, int flags); asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, fd_set __user *, struct __kernel_timespec __user *, void __user *); diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 88dc393c2bca..ec0ac5a8d519 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -849,9 +849,11 @@ __SYSCALL(__NR_getxattrat, sys_getxattrat) __SYSCALL(__NR_listxattrat, sys_listxattrat) #define __NR_removexattrat 466 __SYSCALL(__NR_removexattrat, sys_removexattrat) +#define __NR_sendfile2 467 +__SYSCALL(__NR_sendfile2, sys_sendfile2) #undef __NR_syscalls -#define __NR_syscalls 467 +#define __NR_syscalls 468 /* * 32 bit systems traditionally used different diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl index ebbdb3c42e9f..1911a64d3b33 100644 --- a/scripts/syscall.tbl +++ b/scripts/syscall.tbl @@ -407,3 +407,4 @@ 464 common getxattrat sys_getxattrat 465 common listxattrat sys_listxattrat 466 common removexattrat sys_removexattrat +467 common sendfile2 sys_sendfile2