Hi Christoph, Russell,
Here is an updated series for removing set_fs() from arch/arm,
based on the previous feedback.
I have tested the oabi-compat changes using the LTP tests for the three
modified syscalls using an Armv7 kernel and a Debian 5 OABI user space,
and I have lightly tested the get_kernel_nofault infrastructure by
loading the test_lockup.ko module after setting CONFIG_DEBUG_SPINLOCK.
Arnd
Arnd Bergmann (9):
mm/maccess: fix unaligned copy_{from,to}_kernel_nofault
ARM: traps: use get_kernel_nofault instead of set_fs()
ARM: oabi-compat: add epoll_pwait handler
ARM: syscall: always store thread_info->syscall
ARM: oabi-compat: rework epoll_wait/epoll_pwait emulation
ARM: oabi-compat: rework sys_semtimedop emulation
ARM: oabi-compat: rework fcntl64() emulation
ARM: uaccess: add __{get,put}_kernel_nofault
ARM: uaccess: remove set_fs() implementation
arch/arm/Kconfig | 1 -
arch/arm/include/asm/ptrace.h | 1 -
arch/arm/include/asm/syscall.h | 16 ++-
arch/arm/include/asm/thread_info.h | 4 -
arch/arm/include/asm/uaccess-asm.h | 6 -
arch/arm/include/asm/uaccess.h | 169 ++++++++++++++-------------
arch/arm/kernel/asm-offsets.c | 3 +-
arch/arm/kernel/entry-common.S | 16 +--
arch/arm/kernel/process.c | 7 +-
arch/arm/kernel/ptrace.c | 4 +-
arch/arm/kernel/signal.c | 8 --
arch/arm/kernel/sys_oabi-compat.c | 181 ++++++++++++++++-------------
arch/arm/kernel/traps.c | 47 +++-----
arch/arm/lib/copy_from_user.S | 3 +-
arch/arm/lib/copy_to_user.S | 3 +-
arch/arm/tools/syscall.tbl | 2 +-
fs/eventpoll.c | 5 +-
include/linux/eventpoll.h | 18 +++
include/linux/syscalls.h | 3 +
ipc/sem.c | 84 ++++++++-----
mm/maccess.c | 28 ++++-
21 files changed, 328 insertions(+), 281 deletions(-)
--
2.27.0
