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Commit 0d6040d4 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

arch: add split IPC system calls where needed 



The IPC system call handling is highly inconsistent across architectures,
some use sys_ipc, some use separate calls, and some use both.  We also
have some architectures that require passing IPC_64 in the flags, and
others that set it implicitly.

For the addition of a y2038 safe semtimedop() system call, I chose to only
support the separate entry points, but that requires first supporting
the regular ones with their own syscall numbers.

The IPC_64 is now implied by the new semctl/shmctl/msgctl system
calls even on the architectures that require passing it with the ipc()
multiplexer.

I'm not adding the new semtimedop() or semop() on 32-bit architectures,
those will get implemented using the new semtimedop_time64() version
that gets added along with the other time64 calls.
Three 64-bit architectures (powerpc, s390 and sparc) get semtimedop().

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
parent 275f2214

arch/m68k/kernel/syscalls/syscall.tbl

+11 −0
Original line number Diff line number Diff line
@@ -388,3 +388,14 @@ 
378	common	pwritev2			sys_pwritev2

379	common	statx				sys_statx

380	common	seccomp				sys_seccomp

# room for arch specific calls

393	common	semget				sys_semget

394	common	semctl				sys_semctl

395	common	shmget				sys_shmget

396	common	shmctl				sys_shmctl

397	common	shmat				sys_shmat

398	common	shmdt				sys_shmdt

399	common	msgget				sys_msgget

400	common	msgsnd				sys_msgsnd

401	common	msgrcv				sys_msgrcv

402	common	msgctl				sys_msgctl

arch/mips/kernel/syscalls/syscall_o32.tbl

+11 −0
Original line number Diff line number Diff line
@@ -380,3 +380,14 @@ 
366	o32	statx				sys_statx

367	o32	rseq				sys_rseq

368	o32	io_pgetevents			sys_io_pgetevents		compat_sys_io_pgetevents

# room for arch specific calls

393	o32	semget				sys_semget

394	o32	semctl				sys_semctl			compat_sys_semctl

395	o32	shmget				sys_shmget

396	o32	shmctl				sys_shmctl			compat_sys_shmctl

397	o32	shmat				sys_shmat			compat_sys_shmat

398	o32	shmdt				sys_shmdt

399	o32	msgget				sys_msgget

400	o32	msgsnd				sys_msgsnd			compat_sys_msgsnd

401	o32	msgrcv				sys_msgrcv			compat_sys_msgrcv

402	o32	msgctl				sys_msgctl			compat_sys_msgctl

arch/powerpc/kernel/syscalls/syscall.tbl

+13 −0
Original line number Diff line number Diff line
@@ -414,6 +414,7 @@ 
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
@@ -425,3 +426,15 @@ 
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

arch/s390/kernel/syscalls/syscall.tbl

+12 −0
Original line number Diff line number Diff line
@@ -391,3 +391,15 @@ 
381  common	kexec_file_load		sys_kexec_file_load		sys_kexec_file_load

382  common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents

383  common	rseq			sys_rseq			sys_rseq

# room for arch specific syscalls

392	64	semtimedop		sys_semtimedop			-

393  common	semget			sys_semget			sys_semget

394  common	semctl			sys_semctl			compat_sys_semctl

395  common	shmget			sys_shmget			sys_shmget

396  common	shmctl			sys_shmctl			compat_sys_shmctl

397  common	shmat			sys_shmat			compat_sys_shmat

398  common	shmdt			sys_shmdt 			sys_shmdt

399  common	msgget			sys_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

arch/sh/kernel/syscalls/syscall.tbl

+11 −0
Original line number Diff line number Diff line
@@ -391,3 +391,14 @@ 
381	common	preadv2				sys_preadv2

382	common	pwritev2			sys_pwritev2

383	common	statx				sys_statx

# room for arch specific syscalls

393	common	semget				sys_semget

394	common	semctl				sys_semctl

395	common	shmget				sys_shmget

396	common	shmctl				sys_shmctl

397	common	shmat				sys_shmat

398	common	shmdt				sys_shmdt

399	common	msgget				sys_msgget

400	common	msgsnd				sys_msgsnd

401	common	msgrcv				sys_msgrcv

402	common	msgctl				sys_msgctl