From: Li Chen <me@linux.beauty>
To: Christian Brauner <brauner@kernel.org>
Cc: "Kees Cook" <kees@kernel.org>,
"Gabriel Krisman Bertazi" <krisman@kernel.org>,
"Josh Triplett" <josh@joshtriplett.org>,
"Mateusz Guzik" <mjguzik@gmail.com>,
"Andy Lutomirski" <luto@kernel.org>,
"John Ericson" <mail@johnericson.me>,
"Jonathan Corbet" <corbet@lwn.net>,
"Shuah Khan" <shuah@kernel.org>, "Arnd Bergmann" <arnd@arndb.de>,
"Oleg Nesterov" <oleg@redhat.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Paul Moore" <paul@paul-moore.com>,
"Eric Paris" <eparis@redhat.com>,
"Mickaël Salaün" <mic@digikod.net>,
"Günther Noack" <gnoack@google.com>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Jan Kara" <jack@suse.cz>,
linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-doc@vger.kernel.org, audit@vger.kernel.org,
linux-security-module@vger.kernel.org,
linux-arch@vger.kernel.org, linux-mm@kvack.org,
"Li Chen" <me@linux.beauty>
Subject: [RFC PATCH 22/24] pidfd: expose spawn builder system calls
Date: Thu, 16 Jul 2026 22:31:48 +0800 [thread overview]
Message-ID: <08700c80bff699de86def3904a5b6e91d09ffe19.1784204592.git.me@linux.beauty> (raw)
In-Reply-To: <cover.1784204592.git.me@linux.beauty>
The preceding commits define the future-pidfd lifetime, configuration, and
run state machine without making them reachable from userspace. Each
preparatory step therefore remains bisectable without exposing a partial
process builder.
Make pidfd_open(0, PIDFD_EMPTY) create a taskless future pidfd and expose
pidfd_config() and pidfd_spawn_run(). Add the syscall declarations and
table entries together so the complete initial interface becomes reachable
at one commit boundary. Synchronize the lagging arm64 AArch32 perf mirror
through the current syscall table while adding the builder entries.
Assisted-by: Codex:gpt-5.6-sol
Signed-off-by: Li Chen <me@linux.beauty>
---
arch/alpha/kernel/syscalls/syscall.tbl | 2 ++
arch/arm/tools/syscall.tbl | 2 ++
arch/arm64/tools/syscall_32.tbl | 2 ++
arch/m68k/kernel/syscalls/syscall.tbl | 2 ++
arch/microblaze/kernel/syscalls/syscall.tbl | 2 ++
arch/mips/kernel/syscalls/syscall_n32.tbl | 2 ++
arch/mips/kernel/syscalls/syscall_n64.tbl | 2 ++
arch/mips/kernel/syscalls/syscall_o32.tbl | 2 ++
arch/parisc/kernel/syscalls/syscall.tbl | 2 ++
arch/powerpc/kernel/syscalls/syscall.tbl | 2 ++
arch/s390/kernel/syscalls/syscall.tbl | 2 ++
arch/sh/kernel/syscalls/syscall.tbl | 2 ++
arch/sparc/kernel/syscalls/syscall.tbl | 2 ++
arch/x86/entry/syscalls/syscall_32.tbl | 2 ++
arch/x86/entry/syscalls/syscall_64.tbl | 2 ++
arch/xtensa/kernel/syscalls/syscall.tbl | 2 ++
include/linux/syscalls.h | 7 +++++++
include/uapi/asm-generic/unistd.h | 8 +++++++-
kernel/pid.c | 19 ++++++++++++++++++-
scripts/syscall.tbl | 2 ++
tools/include/uapi/asm-generic/unistd.h | 8 +++++++-
.../arch/alpha/entry/syscalls/syscall.tbl | 2 ++
.../perf/arch/arm/entry/syscalls/syscall.tbl | 2 ++
.../arch/arm64/entry/syscalls/syscall_32.tbl | 11 +++++++++++
.../arch/mips/entry/syscalls/syscall_n64.tbl | 2 ++
.../arch/parisc/entry/syscalls/syscall.tbl | 2 ++
.../arch/powerpc/entry/syscalls/syscall.tbl | 2 ++
.../perf/arch/s390/entry/syscalls/syscall.tbl | 2 ++
tools/perf/arch/sh/entry/syscalls/syscall.tbl | 2 ++
.../arch/sparc/entry/syscalls/syscall.tbl | 2 ++
.../arch/x86/entry/syscalls/syscall_32.tbl | 2 ++
.../arch/x86/entry/syscalls/syscall_64.tbl | 2 ++
.../arch/xtensa/entry/syscalls/syscall.tbl | 2 ++
tools/scripts/syscall.tbl | 2 ++
34 files changed, 108 insertions(+), 3 deletions(-)
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index f31b7afffc345..8dd0b22a407c5 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -511,3 +511,5 @@
579 common file_setattr sys_file_setattr
580 common listns sys_listns
581 common rseq_slice_yield sys_rseq_slice_yield
+582 common pidfd_config sys_pidfd_config
+583 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index 94351e22bfcf7..9830c4600fc78 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -486,3 +486,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/arm64/tools/syscall_32.tbl b/arch/arm64/tools/syscall_32.tbl
index 62d93d88e0fef..9c3281b3612c2 100644
--- a/arch/arm64/tools/syscall_32.tbl
+++ b/arch/arm64/tools/syscall_32.tbl
@@ -483,3 +483,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index 2489342571014..2db719475e061 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -471,3 +471,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index 223d263036272..41ead93dba5c4 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -477,3 +477,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index 7430714e2b8f8..b6bfca9ddedc6 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -410,3 +410,5 @@
469 n32 file_setattr sys_file_setattr
470 n32 listns sys_listns
471 n32 rseq_slice_yield sys_rseq_slice_yield
+472 n32 pidfd_config sys_pidfd_config
+473 n32 pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index 630aab9e54259..229a1a5bff0e9 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -386,3 +386,5 @@
469 n64 file_setattr sys_file_setattr
470 n64 listns sys_listns
471 n64 rseq_slice_yield sys_rseq_slice_yield
+472 n64 pidfd_config sys_pidfd_config
+473 n64 pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 128653112284b..4ee804186e399 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -459,3 +459,5 @@
469 o32 file_setattr sys_file_setattr
470 o32 listns sys_listns
471 o32 rseq_slice_yield sys_rseq_slice_yield
+472 o32 pidfd_config sys_pidfd_config
+473 o32 pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index c6331dad94613..ff6760df2dc51 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -470,3 +470,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 4fcc7c58a105d..021b334a8e1a0 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -562,3 +562,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 nospu rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 09a7ef04d9791..eea88f94a7624 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -398,3 +398,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index 70b315cbe710c..37166286c4045 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -475,3 +475,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 7e71bf7fcd14f..70f2165b9cfb3 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -517,3 +517,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index f832ebd2d79b0..b2eeddbe99be9 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -477,3 +477,5 @@
469 i386 file_setattr sys_file_setattr
470 i386 listns sys_listns
471 i386 rseq_slice_yield sys_rseq_slice_yield
+472 i386 pidfd_config sys_pidfd_config
+473 i386 pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 524155d655da1..f0952f34c10a5 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -396,6 +396,8 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
#
# 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 a9bca4e484dec..45dd80ab94cf9 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -442,3 +442,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 874d9067a43b5..ec90454d01214 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -79,6 +79,7 @@ struct mnt_id_req;
struct ns_id_req;
struct xattr_args;
struct file_attr;
+struct pidfd_spawn_run_args;
#include <linux/types.h>
#include <linux/aio_abi.h>
@@ -908,6 +909,12 @@ asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
asmlinkage long sys_syncfs(int fd);
asmlinkage long sys_setns(int fd, int nstype);
asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
+asmlinkage long sys_pidfd_config(int fd, unsigned int cmd,
+ const char __user *key,
+ const void __user *value, int aux);
+asmlinkage long sys_pidfd_spawn_run(int fd,
+ const struct pidfd_spawn_run_args __user *uargs,
+ size_t usize);
asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
unsigned int vlen, unsigned flags);
asmlinkage long sys_process_vm_readv(pid_t pid,
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index a627acc8fb5fe..9ab8ae5100ec1 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -863,8 +863,14 @@ __SYSCALL(__NR_listns, sys_listns)
#define __NR_rseq_slice_yield 471
__SYSCALL(__NR_rseq_slice_yield, sys_rseq_slice_yield)
+#define __NR_pidfd_config 472
+__SYSCALL(__NR_pidfd_config, sys_pidfd_config)
+
+#define __NR_pidfd_spawn_run 473
+__SYSCALL(__NR_pidfd_spawn_run, sys_pidfd_spawn_run)
+
#undef __NR_syscalls
-#define __NR_syscalls 472
+#define __NR_syscalls 474
/*
* 32 bit systems traditionally used different
diff --git a/kernel/pid.c b/kernel/pid.c
index 010f80177cac8..a1d05ce10ac25 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -43,6 +43,7 @@
#include <linux/sched/task.h>
#include <linux/idr.h>
#include <linux/pidfs.h>
+#include <linux/pidfd_spawn.h>
#include <net/sock.h>
#include <uapi/linux/pidfd.h>
@@ -715,10 +716,26 @@ SYSCALL_DEFINE2(pidfd_open, pid_t, pid, unsigned int, flags)
int fd;
struct pid *p;
+ /*
+ * pidfd_open(0, PIDFD_EMPTY) is the spawn-builder entry point.
+ * It creates a future pidfd instead of looking up pid 0.
+ */
+ if (pid == 0) {
+ if (!(flags & PIDFD_EMPTY))
+ return -EINVAL;
+ if (flags & ~(PIDFD_EMPTY | PIDFD_NONBLOCK))
+ return -EINVAL;
+
+ return pidfd_empty_open(flags & PIDFD_NONBLOCK);
+ }
+
+ /* PIDFD_EMPTY is only meaningful for the pid == 0 builder form. */
+ if (flags & PIDFD_EMPTY)
+ return -EINVAL;
if (flags & ~(PIDFD_NONBLOCK | PIDFD_THREAD))
return -EINVAL;
- if (pid <= 0)
+ if (pid < 0)
return -EINVAL;
p = find_get_pid(pid);
diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl
index 7a42b32b65776..29248f0ac1a07 100644
--- a/scripts/syscall.tbl
+++ b/scripts/syscall.tbl
@@ -412,3 +412,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h
index a627acc8fb5fe..9ab8ae5100ec1 100644
--- a/tools/include/uapi/asm-generic/unistd.h
+++ b/tools/include/uapi/asm-generic/unistd.h
@@ -863,8 +863,14 @@ __SYSCALL(__NR_listns, sys_listns)
#define __NR_rseq_slice_yield 471
__SYSCALL(__NR_rseq_slice_yield, sys_rseq_slice_yield)
+#define __NR_pidfd_config 472
+__SYSCALL(__NR_pidfd_config, sys_pidfd_config)
+
+#define __NR_pidfd_spawn_run 473
+__SYSCALL(__NR_pidfd_spawn_run, sys_pidfd_spawn_run)
+
#undef __NR_syscalls
-#define __NR_syscalls 472
+#define __NR_syscalls 474
/*
* 32 bit systems traditionally used different
diff --git a/tools/perf/arch/alpha/entry/syscalls/syscall.tbl b/tools/perf/arch/alpha/entry/syscalls/syscall.tbl
index 74720667fe091..a20f81b950349 100644
--- a/tools/perf/arch/alpha/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/alpha/entry/syscalls/syscall.tbl
@@ -502,3 +502,5 @@
570 common lsm_set_self_attr sys_lsm_set_self_attr
571 common lsm_list_modules sys_lsm_list_modules
572 common mseal sys_mseal
+582 common pidfd_config sys_pidfd_config
+583 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/arm/entry/syscalls/syscall.tbl b/tools/perf/arch/arm/entry/syscalls/syscall.tbl
index 94351e22bfcf7..9830c4600fc78 100644
--- a/tools/perf/arch/arm/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/arm/entry/syscalls/syscall.tbl
@@ -486,3 +486,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl b/tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl
index 9a37930d4e26f..9c3281b3612c2 100644
--- a/tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl
+++ b/tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl
@@ -474,3 +474,14 @@
460 common lsm_set_self_attr sys_lsm_set_self_attr
461 common lsm_list_modules sys_lsm_list_modules
462 common mseal sys_mseal
+463 common setxattrat sys_setxattrat
+464 common getxattrat sys_getxattrat
+465 common listxattrat sys_listxattrat
+466 common removexattrat sys_removexattrat
+467 common open_tree_attr sys_open_tree_attr
+468 common file_getattr sys_file_getattr
+469 common file_setattr sys_file_setattr
+470 common listns sys_listns
+471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl b/tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl
index 630aab9e54259..229a1a5bff0e9 100644
--- a/tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl
+++ b/tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl
@@ -386,3 +386,5 @@
469 n64 file_setattr sys_file_setattr
470 n64 listns sys_listns
471 n64 rseq_slice_yield sys_rseq_slice_yield
+472 n64 pidfd_config sys_pidfd_config
+473 n64 pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/parisc/entry/syscalls/syscall.tbl b/tools/perf/arch/parisc/entry/syscalls/syscall.tbl
index 66dc406b12e44..88311785913f8 100644
--- a/tools/perf/arch/parisc/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/parisc/entry/syscalls/syscall.tbl
@@ -461,3 +461,5 @@
460 common lsm_set_self_attr sys_lsm_set_self_attr
461 common lsm_list_modules sys_lsm_list_modules
462 common mseal sys_mseal
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl b/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl
index 4fcc7c58a105d..021b334a8e1a0 100644
--- a/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl
@@ -562,3 +562,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 nospu rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/s390/entry/syscalls/syscall.tbl b/tools/perf/arch/s390/entry/syscalls/syscall.tbl
index 09a7ef04d9791..eea88f94a7624 100644
--- a/tools/perf/arch/s390/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/s390/entry/syscalls/syscall.tbl
@@ -398,3 +398,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/sh/entry/syscalls/syscall.tbl b/tools/perf/arch/sh/entry/syscalls/syscall.tbl
index 70b315cbe710c..37166286c4045 100644
--- a/tools/perf/arch/sh/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/sh/entry/syscalls/syscall.tbl
@@ -475,3 +475,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/sparc/entry/syscalls/syscall.tbl b/tools/perf/arch/sparc/entry/syscalls/syscall.tbl
index 7e71bf7fcd14f..70f2165b9cfb3 100644
--- a/tools/perf/arch/sparc/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/sparc/entry/syscalls/syscall.tbl
@@ -517,3 +517,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_32.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_32.tbl
index f832ebd2d79b0..b2eeddbe99be9 100644
--- a/tools/perf/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/tools/perf/arch/x86/entry/syscalls/syscall_32.tbl
@@ -477,3 +477,5 @@
469 i386 file_setattr sys_file_setattr
470 i386 listns sys_listns
471 i386 rseq_slice_yield sys_rseq_slice_yield
+472 i386 pidfd_config sys_pidfd_config
+473 i386 pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
index 524155d655da1..f0952f34c10a5 100644
--- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
@@ -396,6 +396,8 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
#
# Due to a historical design error, certain syscalls are numbered differently
diff --git a/tools/perf/arch/xtensa/entry/syscalls/syscall.tbl b/tools/perf/arch/xtensa/entry/syscalls/syscall.tbl
index a9bca4e484dec..45dd80ab94cf9 100644
--- a/tools/perf/arch/xtensa/entry/syscalls/syscall.tbl
+++ b/tools/perf/arch/xtensa/entry/syscalls/syscall.tbl
@@ -442,3 +442,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
diff --git a/tools/scripts/syscall.tbl b/tools/scripts/syscall.tbl
index 7a42b32b65776..29248f0ac1a07 100644
--- a/tools/scripts/syscall.tbl
+++ b/tools/scripts/syscall.tbl
@@ -412,3 +412,5 @@
469 common file_setattr sys_file_setattr
470 common listns sys_listns
471 common rseq_slice_yield sys_rseq_slice_yield
+472 common pidfd_config sys_pidfd_config
+473 common pidfd_spawn_run sys_pidfd_spawn_run
--
2.52.0
next prev parent reply other threads:[~2026-07-16 14:45 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-16 14:31 [RFC PATCH 00/24] pidfd: add a minimal process spawn builder Li Chen
2026-07-16 14:31 ` [RFC PATCH 01/24] pidfd: add spawn builder uapi Li Chen
2026-07-16 14:31 ` [RFC PATCH 02/24] libfs: allow custom validation of stashed inode data Li Chen
2026-07-16 14:31 ` [RFC PATCH 03/24] pidfs: add taskless future pidfd inodes Li Chen
2026-07-16 14:31 ` [RFC PATCH 04/24] pidfd: create taskless spawn builders Li Chen
2026-07-16 14:31 ` [RFC PATCH 05/24] pidfd: add spawn builder path configuration Li Chen
2026-07-16 14:31 ` [RFC PATCH 06/24] exec: expose execveat internals to process builders Li Chen
2026-07-16 14:31 ` [RFC PATCH 07/24] fork: expose vfork completion helper Li Chen
2026-07-16 14:31 ` [RFC PATCH 08/24] pidfs: attach pids to future pidfd files Li Chen
2026-07-16 14:31 ` [RFC PATCH 09/24] fork: let process builders supply preallocated pids Li Chen
2026-07-16 14:31 ` [RFC PATCH 10/24] pidfs: publish future pidfd files Li Chen
2026-07-16 14:31 ` [RFC PATCH 11/24] pidfd: add spawn builder state tracking Li Chen
2026-07-16 14:31 ` [RFC PATCH 12/24] fork: let kernel callers create embryonic tasks Li Chen
2026-07-16 15:57 ` Andy Lutomirski
2026-08-19 10:19 ` Li Chen
2026-07-16 14:31 ` [RFC PATCH 13/24] fork: let new tasks start with task work Li Chen
2026-07-16 14:31 ` [RFC PATCH 14/24] pidfd: create and execute spawn builder tasks Li Chen
2026-07-16 14:31 ` [RFC PATCH 15/24] fork: keep embryonic tasks hidden until exec completes Li Chen
2026-07-16 14:31 ` [RFC PATCH 16/24] audit: add pidfd spawn child contexts Li Chen
2026-07-16 14:31 ` [RFC PATCH 17/24] pidfd: audit child spawn execution Li Chen
2026-07-16 14:31 ` [RFC PATCH 18/24] pidfd: make spawn builder execution signal-safe Li Chen
2026-07-16 14:31 ` [RFC PATCH 19/24] file: expose spawn file-action helpers Li Chen
2026-07-16 14:31 ` [RFC PATCH 20/24] pidfd: add initial spawn file actions Li Chen
2026-07-16 14:31 ` [RFC PATCH 21/24] pidfd: consume spawn builders on the first run attempt Li Chen
2026-07-16 14:31 ` Li Chen [this message]
2026-07-16 14:31 ` [RFC PATCH 23/24] selftests/pidfd: cover pidfd spawn builders Li Chen
2026-07-16 14:31 ` [RFC PATCH 24/24] Documentation: describe " Li Chen
2026-08-04 20:25 ` [RFC PATCH 00/24] pidfd: add a minimal process spawn builder Justin Suess
2026-08-19 1:14 ` Li Chen
2026-08-25 21:27 ` Mateusz Guzik
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