linux/arch/m68k
Eric W. Biederman a403df2978 ptrace/m68k: Stop open coding ptrace_report_syscall
The generic function ptrace_report_syscall does a little more
than syscall_trace on m68k.  The function ptrace_report_syscall
stops early if PT_TRACED is not set, it sets ptrace_message,
and returns the result of fatal_signal_pending.

Setting ptrace_message to a passed in value of 0 is effectively not
setting ptrace_message, making that additional work a noop.

Returning the result of fatal_signal_pending and letting the caller
ignore the result becomes a noop in this change.

When a process is ptraced, the flag PT_PTRACED is always set in
current->ptrace.  Testing for PT_PTRACED in ptrace_report_syscall is
just an optimization to fail early if the process is not ptraced.
Later on in ptrace_notify, ptrace_stop will test current->ptrace under
tasklist_lock and skip performing any work if the task is not ptraced.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lkml.kernel.org/r/20220103213312.9144-8-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2022-01-08 12:43:58 -06:00
..
68000 m68k: Remove set_fs() 2021-09-24 13:35:07 +02:00
amiga asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00
apollo asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00
atari m68k/q40: Replace q40ide driver with pata_falcon and falconide 2021-06-10 16:30:12 -06:00
bvme6000 asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00
coldfire m68k: Remove set_fs() 2021-09-24 13:35:07 +02:00
configs m68k: defconfig: Update defconfigs for v5.15-rc1 2021-10-11 10:34:52 +02:00
emu Core: 2021-11-02 06:20:58 -07:00
fpsp040 signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die 2021-08-26 09:59:15 -05:00
hp300 asm-generic: cross-architecture timer cleanup 2020-12-16 00:07:17 -08:00
ifpsp060 m68k: fpsp040,ifpsp060: Remove meaningless EXTRA_LDFLAGS 2021-04-06 09:33:20 +02:00
include Fixes include: 2021-11-11 14:22:05 -08:00
kernel ptrace/m68k: Stop open coding ptrace_report_syscall 2022-01-08 12:43:58 -06:00
lib m68k: muldi3: Use semicolon instead of comma 2021-09-24 13:35:23 +02:00
mac m68k: Remove set_fs() 2021-09-24 13:35:07 +02:00
math-emu treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 74 2019-05-24 17:36:47 +02:00
mm exit: Add and use make_task_dead. 2021-12-13 12:04:45 -06:00
mvme16x m68k: mvme: Remove overdue #warnings in RTC handling 2021-09-13 11:19:05 +02:00
mvme147 m68k: mvme: Remove overdue #warnings in RTC handling 2021-09-13 11:19:05 +02:00
q40 m68k/q40: Replace q40ide driver with pata_falcon and falconide 2021-06-10 16:30:12 -06:00
sun3 m68k: Remove set_fs() 2021-09-24 13:35:07 +02:00
sun3x m68k: Remove set_fs() 2021-09-24 13:35:07 +02:00
tools/amiga m68k: tools: Replace zero-length array with flexible-array member 2020-05-25 10:55:56 +02:00
install.sh
Kbuild m68k: sun3: Descend to prom from arch/m68k/sun3 2020-07-13 11:39:12 +02:00
Kconfig m68k: Remove set_fs() 2021-09-24 13:35:07 +02:00
Kconfig.bus m68knommu: only set CONFIG_ISA_DMA_API for ColdFire sub-arch 2021-08-23 08:40:05 +10:00
Kconfig.cpu m68knommu: Remove MCPU32 config symbol 2021-10-26 08:46:27 +10:00
Kconfig.debug m68k: Fix Kconfig indentation 2020-03-09 11:12:19 +01:00
Kconfig.devices treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Kconfig.machine m68k: set a default value for MEMORY_RESERVE 2021-10-26 08:46:27 +10:00
Makefile kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00