[PATCH 29/32] um: copy_thread(): rename 'arg' argument to 'kthread_arg'
From: Alex Dowad <hidden>
Date: 2015-03-13 18:17:19
Also in:
lkml
Subsystem:
the rest, user-mode linux (uml) · Maintainers:
Linus Torvalds, Richard Weinberger, Anton Ivanov, Johannes Berg
The 'arg' argument to copy_thread() is only ever used when forking a new kernel thread. Hence, rename it to 'kthread_arg' for clarity (and consistency with do_fork() and other arch-specific implementations of copy_thread()). Signed-off-by: Alex Dowad <redacted> --- arch/um/kernel/process.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index f17bca8..80ac9fe 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c@@ -149,8 +149,11 @@ void fork_handler(void) userspace(¤t->thread.regs.regs); } +/* + * Copy architecture-specific thread state + */ int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, struct task_struct * p) + unsigned long kthread_arg, struct task_struct *p) { void (*handler)(void); int kthread = current->flags & PF_KTHREAD;
@@ -159,6 +162,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, p->thread = (struct thread_struct) INIT_THREAD; if (!kthread) { + /* user thread */ memcpy(&p->thread.regs.regs, current_pt_regs(), sizeof(p->thread.regs.regs)); PT_REGS_SET_SYSCALL_RETURN(&p->thread.regs, 0);
@@ -169,9 +173,10 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, arch_copy_thread(¤t->thread.arch, &p->thread.arch); } else { + /* kernel thread */ get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp); p->thread.request.u.thread.proc = (int (*)(void *))sp; - p->thread.request.u.thread.arg = (void *)arg; + p->thread.request.u.thread.arg = (void *)kthread_arg; handler = new_thread_handler; }
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2.0.0.GIT