On Mon, Jan 14, 2019 at 4:59 AM Michael Ellerman <mpe@xxxxxxxxxxxxxx> wrote:
Arnd Bergmann <arnd@xxxxxxxx> writes:
arch/m68k/kernel/syscalls/syscall.tbl | 11 +++++++++++
arch/mips/kernel/syscalls/syscall_o32.tbl | 11 +++++++++++
arch/powerpc/kernel/syscalls/syscall.tbl | 12 ++++++++++++
I have some changes I'd like to make to our syscall table that will
clash with this.
I'll try and send them today.
Ok. Are those for 5.0 or 5.1? If they are intended for 5.0, it would be
nice for me to have a branch based on 5.0-rc1 that I can put
the other patches on top of.
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index db3bbb8744af..1bffab54ff35 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -425,3 +425,15 @@
386 nospu pkey_mprotect sys_pkey_mprotect
387 nospu rseq sys_rseq
388 nospu io_pgetevents sys_io_pgetevents compat_sys_io_pgetevents
+# room for arch specific syscalls
+392 64 semtimedop sys_semtimedop
+393 common semget sys_semget
+394 common semctl sys_semctl compat_sys_semctl
+395 common shmget sys_shmget
+396 common shmctl sys_shmctl compat_sys_shmctl
+397 common shmat sys_shmat compat_sys_shmat
+398 common shmdt sys_shmdt
+399 common msgget sys_msgget
+400 common msgsnd sys_msgsnd compat_sys_msgsnd
+401 common msgrcv sys_msgrcv compat_sys_msgrcv
+402 common msgctl sys_msgctl compat_sys_msgctl
We already have a gap at 366-377 from when we tried to add the split IPC
calls a few years back.
I guess I don't mind leaving that gap and using the common numbers as
you've done here.
But it would be good to add a comment pointing out that we have room
at 366 for more arch specific syscalls as well.
Ah, I missed that. I've added this to my patch now:
index 5c0936d862fc..2ddfba536d5f 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -460,6 +460,7 @@
363 spu switch_endian sys_ni_syscall
364 common userfaultfd sys_userfaultfd
365 common membarrier sys_membarrier
+# 366-377 originally left for IPC, now unused
378 nospu mlock2 sys_mlock2
379 nospu copy_file_range sys_copy_file_range
380 common preadv2 sys_preadv2
compat_sys_preadv2
Arnd
