[uml-devel] [PATCH 29/32] um: copy_thread(): rename 'arg' argument to 'kthread_arg'

[Alex Dowad]

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 <alexinbeij...@gmail.com>
---
 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(&current->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(&current->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;
        }
 
-- 
2.0.0.GIT


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