From: Joe Damato <jdamato@fastly.com>
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 <jdamato@fastly.com>
Subject: [RFC -next 09/10] fs: Add sendfile2 syscall
Date: Wed, 19 Mar 2025 00:15:20 +0000 [thread overview]
Message-ID: <20250319001521.53249-10-jdamato@fastly.com> (raw)
In-Reply-To: <20250319001521.53249-1-jdamato@fastly.com>
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 <jdamato@fastly.com>
---
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
--
2.43.0
next prev parent reply other threads:[~2025-03-19 0:15 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-19 0:15 [RFC -next 00/10] Add ZC notifications to splice and sendfile Joe Damato
2025-03-19 0:15 ` [RFC -next 01/10] splice: Add ubuf_info to prepare for ZC Joe Damato
2025-03-19 0:15 ` [RFC -next 02/10] splice: Add helper that passes through splice_desc Joe Damato
2025-03-19 0:15 ` [RFC -next 03/10] splice: Factor splice_socket into a helper Joe Damato
2025-03-19 0:15 ` [RFC -next 04/10] splice: Add SPLICE_F_ZC and attach ubuf Joe Damato
2025-03-19 0:15 ` [RFC -next 05/10] fs: Add splice_write_sd to file operations Joe Damato
2025-03-19 0:15 ` [RFC -next 06/10] fs: Extend do_sendfile to take a flags argument Joe Damato
2025-03-19 0:15 ` [RFC -next 07/10] fs: Add sendfile2 which accepts " Joe Damato
2025-03-19 0:15 ` [RFC -next 08/10] fs: Add sendfile flags for sendfile2 Joe Damato
2025-03-19 0:15 ` Joe Damato [this message]
2025-03-19 0:15 ` [RFC -next 10/10] selftests: Add sendfile zerocopy notification test Joe Damato
2025-03-19 8:04 ` [RFC -next 00/10] Add ZC notifications to splice and sendfile Christoph Hellwig
2025-03-19 15:32 ` Joe Damato
2025-03-19 16:07 ` Jens Axboe
2025-03-19 17:04 ` Joe Damato
2025-03-19 17:20 ` Jens Axboe
2025-03-19 17:45 ` Joe Damato
2025-03-19 18:37 ` Jens Axboe
2025-03-19 19:15 ` Stefan Metzmacher
2025-03-20 10:46 ` Pavel Begunkov
2025-03-21 7:55 ` Stefan Metzmacher
2025-03-21 20:51 ` Pavel Begunkov
2025-03-19 19:16 ` Joe Damato
2025-03-21 11:11 ` Jens Axboe
2025-03-20 5:57 ` Christoph Hellwig
2025-03-20 18:23 ` Joe Damato
2025-03-21 5:56 ` Christoph Hellwig
2025-03-21 11:14 ` Jens Axboe
2025-03-21 16:36 ` Joe Damato
2025-03-21 20:30 ` Joe Damato
2025-03-21 20:33 ` Jens Axboe
2025-03-21 21:28 ` Joe Damato
2025-03-21 20:35 ` Jens Axboe
2025-03-21 16:44 ` Joe Damato
2025-03-19 23:22 ` Joe Damato
2025-03-21 11:13 ` Jens Axboe
2025-03-20 5:50 ` Christoph Hellwig
2025-03-20 18:05 ` Joe Damato
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