arch: wire-up clone3() syscall

Wire up the clone3() call on all arches that don't require hand-rolled
assembly.

Some of the arches look like they need special assembly massaging and it is
probably smarter if the appropriate arch maintainers would do the actual
wiring. Arches that are wired-up are:
- x86{_32,64}
- arm{64}
- xtensa

Signed-off-by: Christian Brauner <christian@brauner.io>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Adrian Reber <adrian@lisas.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org

diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index aaf479a9e92d17ab08294d7e96442d77dd37fcdd..e99a82bdb93a66503e9ab33d63066c0fea92c968 100644 (file)
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -447,3 +447,4 @@
 431    common  fsconfig                        sys_fsconfig
 432    common  fsmount                         sys_fsmount
 433    common  fspick                          sys_fspick
+436    common  clone3                          sys_clone3

diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 70e6882853c09ae639da932a70507895c5f8ba18..24480c2d95da49b82cc3368d5878a795e15c2192 100644 (file)
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -44,7 +44,7 @@
 #define __ARM_NR_compat_set_tls                (__ARM_NR_COMPAT_BASE + 5)
 #define __ARM_NR_COMPAT_END            (__ARM_NR_COMPAT_BASE + 0x800)
 
-#define __NR_compat_syscalls           434
+#define __NR_compat_syscalls           437
 #endif
 
 #define __ARCH_WANT_SYS_CLONE

diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index c39e90600bb31000eef7d78c7e4e46d6ea152b13..b144ea675d70d0a1e739b396ba94a3d27ef7c2bf 100644 (file)
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -886,6 +886,8 @@ __SYSCALL(__NR_fsconfig, sys_fsconfig)
 __SYSCALL(__NR_fsmount, sys_fsmount)
 #define __NR_fspick 433
 __SYSCALL(__NR_fspick, sys_fspick)
+#define __NR_clone3 436
+__SYSCALL(__NR_clone3, sys_clone3)
 
 /*
  * Please add new compat syscalls above this comment and update

diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index 26339e417695fb7e99560fe507a3cfb9a6c082e4..3110440bcc310a121920f7d0804d9fc927a90472 100644 (file)
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -439,3 +439,4 @@
 431    common  fsconfig                        sys_fsconfig
 432    common  fsmount                         sys_fsmount
 433    common  fspick                          sys_fspick
+436    common  clone3                          sys_clone3

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ad968b7bac72ba4b516dcaaaf49ed9f6c3a69f0a..80e26211feffa10b77261769ad222cfa1ebc6156 100644 (file)
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -438,3 +438,4 @@
 431    i386    fsconfig                sys_fsconfig                    __ia32_sys_fsconfig
 432    i386    fsmount                 sys_fsmount                     __ia32_sys_fsmount
 433    i386    fspick                  sys_fspick                      __ia32_sys_fspick
+436    i386    clone3                  sys_clone3                      __ia32_sys_clone3

diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index b4e6f9e6204aa874f03337adc47f9bba0297f707..7968f0b5b5e855d9f2e7c0a7963aba8792f93826 100644 (file)
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -355,6 +355,7 @@
 431    common  fsconfig                __x64_sys_fsconfig
 432    common  fsmount                 __x64_sys_fsmount
 433    common  fspick                  __x64_sys_fspick
+436    common  clone3                  __x64_sys_clone3/ptregs
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact

diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index 5fa0ee1c8e00f4dc3f64d79e913a33e75767c50c..b2767c8c2b4e9f588e1d8f67efa456a07271ab44 100644 (file)
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -404,3 +404,4 @@
 431    common  fsconfig                        sys_fsconfig
 432    common  fsmount                         sys_fsmount
 433    common  fspick                          sys_fspick
+436    common  clone3                          sys_clone3

diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index a87904daf1034449980afb86b952a538f84b9da9..45bc87687c477b929138edfa5048e5891c44ae04 100644 (file)
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -844,9 +844,11 @@ __SYSCALL(__NR_fsconfig, sys_fsconfig)
 __SYSCALL(__NR_fsmount, sys_fsmount)
 #define __NR_fspick 433
 __SYSCALL(__NR_fspick, sys_fspick)
+#define __NR_clone3 436
+__SYSCALL(__NR_clone3, sys_clone3)
 
 #undef __NR_syscalls
-#define __NR_syscalls 434
+#define __NR_syscalls 437
 
 /*
  * 32 bit systems traditionally used different