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OpenCloudOS-Kernel/arch/sh/kernel
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Arnd Bergmann 91878a2bc8 sh: rework sync_file_range ABI 
commit 30766f1105d6d2459c3b9fe34a3e52b637a72950 upstream.

The unusual function calling conventions on SuperH ended up causing
sync_file_range to have the wrong argument order, with the 'flags'
argument getting sorted before 'nbytes' by the compiler.

In userspace, I found that musl, glibc, uclibc and strace all expect the
normal calling conventions with 'nbytes' last, so changing the kernel
to match them should make all of those work.

In order to be able to also fix libc implementations to work with existing
kernels, they need to be able to tell which ABI is used. An easy way
to do this is to add yet another system call using the sync_file_range2
ABI that works the same on all architectures.

Old user binaries can now work on new kernels, and new binaries can
try the new sync_file_range2() to work with new kernels or fall back
to the old sync_file_range() version if that doesn't exist.

Cc: stable@vger.kernel.org
Fixes: 75c92acdd5 ("sh: Wire up new syscalls.")
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-07-05 09:34:02 +02:00
..
cpu sh: Avoid using IRQ0 on SH3 and SH4 2023-06-11 18:22:47 +02:00
syscalls sh: rework sync_file_range ABI 2024-07-05 09:34:02 +02:00
vsyscall mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Makefile kbuild: use obj-y instead extra-y for objects placed at the head 2022-10-02 18:04:05 +09:00
asm-offsets.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crash_dump.c vmcore: convert copy_oldmem_page() to take an iov_iter 2022-04-29 14:37:59 -07:00
debugtraps.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
disassemble.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
dma-coherent.c dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h> 2020-10-06 07:07:06 +02:00
dumpstack.c sh: stacktrace: Remove stacktrace_ops.stack() 2020-08-14 22:05:11 -04:00
dwarf.c It appears that the zero-day bot did find a bug in my sh build. 2019-01-05 14:08:00 -08:00
entry-common.S sh: fix syscall tracing 2020-09-13 21:22:55 -04:00
ftrace.c ftrace: Cleanup ftrace_dyn_arch_init() 2021-10-08 19:41:39 -04:00
head_32.S sh: init: use OF_EARLY_FLATTREE for early init 2023-03-23 10:00:03 +01:00
hw_breakpoint.c sh: kernel: hw_breakpoint: Fix missing break in switch statement 2019-08-11 16:15:16 -05:00
idle.c sh/cpu: Switch to arch_cpu_finalize_init() 2023-06-16 10:16:00 +02:00
io.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
io_trapped.c sh: remove CONFIG_SET_FS support 2022-02-25 09:36:06 +01:00
iomap.c iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
ioport.c sh: don't include <asm/io_trapped.h> in <asm/io.h> 2020-08-14 22:05:16 -04:00
irq.c asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig. 2022-09-05 17:20:55 +02:00
irq_32.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
kdebugfs.c sh: no need to check return value of debugfs_create functions 2019-06-03 15:39:40 +02:00
kgdb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
kprobes.c sh: kprobes: Merge arch_copy_kprobe() into arch_prepare_kprobe() 2024-06-12 11:11:48 +02:00
machine_kexec.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
machvec.c sh: machvec: Use char[] for section boundaries 2022-09-13 10:33:17 -07:00
module.c sh: remove sh5 support 2020-06-01 14:48:52 -04:00
nmi_debug.c sh: nmi_debug: fix return value of __setup handler 2023-03-23 10:00:02 +01:00
perf_callchain.c sh: stacktrace: Remove stacktrace_ops.stack() 2020-08-14 22:05:11 -04:00
perf_event.c sh: Get rid of oprofile leftovers 2021-04-22 13:32:39 +01:00
process.c sh: remove sh5 support 2020-06-01 14:48:52 -04:00
process_32.c kernel: exit: cleanup release_thread() 2022-09-11 21:55:07 -07:00
ptrace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ptrace_32.c sh: ptrace: user_regset_copyin_ignore() always returns 0 2022-11-15 14:30:41 -08:00
reboot.c sh: Use do_kernel_power_off() 2022-05-19 19:30:31 +02:00
relocate_kernel.S sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
return_address.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
setup.c hardening updates for v6.5-rc1 2023-06-27 21:24:18 -07:00
sh_bios.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
sh_ksyms_32.c sh: Add missing DECLARE_EXPORT() for __ashiftrt_r4_xx 2020-06-01 14:48:49 -04:00
signal_32.c sh: sanitize the flags on sigreturn 2023-03-09 10:01:59 -08:00
smp.c treewide: Trace IPIs sent via smp_send_reschedule() 2023-03-24 11:01:28 +01:00
stacktrace.c sh: stacktrace: Remove stacktrace_ops.stack() 2020-08-14 22:05:11 -04:00
swsusp.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
sys_sh.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
sys_sh32.c sh: rework sync_file_range ABI 2024-07-05 09:34:02 +02:00
syscalls_32.S sh: remove nargs from __SYSCALL 2019-03-05 21:07:13 -08:00
time.c sh: add the sh_ prefix to early platform symbols 2019-10-07 13:50:48 +02:00
topology.c drivers/base/node: consolidate node device subsystem initialization in node_dev_init() 2022-03-22 15:57:10 -07:00
traps.c exit: Add and use make_task_dead. 2021-12-13 12:04:45 -06:00
traps_32.c sh: remove CONFIG_SET_FS support 2022-02-25 09:36:06 +01:00
unwinder.c sh: kernel: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
vmlinux.lds.S Scheduler updates in this cycle are: 2023-02-20 17:41:08 -08:00