Messages in this thread Patch in this message | | | From | Dave Martin <> | Subject | [PATCH REPOST 1/5] thread_info: Port core code to use update_thread_flag() helpers | Date | Fri, 11 May 2018 16:05:00 +0100 |
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This patch ports a couple of relevant bits of the core kernel to use the new update_thread_flag() helpers.
No functional change.
Signed-off-by: Dave Martin <Dave.Martin@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Oleg Nesterov <oleg@redhat.com> --- include/trace/syscall.h | 6 ++---- kernel/ptrace.c | 13 +++++-------- 2 files changed, 7 insertions(+), 12 deletions(-)
diff --git a/include/trace/syscall.h b/include/trace/syscall.h index dc8ac27..dcc9bdf 100644 --- a/include/trace/syscall.h +++ b/include/trace/syscall.h @@ -37,10 +37,8 @@ struct syscall_metadata { #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) static inline void syscall_tracepoint_update(struct task_struct *p) { - if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) - set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); - else - clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); + update_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT, + test_thread_flag(TIF_SYSCALL_TRACEPOINT)); } #else static inline void syscall_tracepoint_update(struct task_struct *p) diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 21fec73..7a2bd8d 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -785,16 +785,13 @@ static int ptrace_resume(struct task_struct *child, long request, if (!valid_signal(data)) return -EIO; - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + update_tsk_thread_flag(child, TIF_SYSCALL_TRACE, + request == PTRACE_SYSCALL); #ifdef TIF_SYSCALL_EMU - if (request == PTRACE_SYSEMU || request == PTRACE_SYSEMU_SINGLESTEP) - set_tsk_thread_flag(child, TIF_SYSCALL_EMU); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_EMU); + update_tsk_thread_flag(child, TIF_SYSCALL_EMU, + request == PTRACE_SYSEMU || + request == PTRACE_SYSEMU_SINGLESTEP); #endif if (is_singleblock(request)) { -- 2.1.4
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