From 291248fd6e371bcbfb8a77689c5d741a1527488f Mon Sep 17 00:00:00 2001 From: Karol Swietlicki Date: Mon, 4 Feb 2008 22:30:49 -0800 Subject: uml: remove unused variables in the context switcher This patch removes a variable which was not used in two functions. Yet another code cleanup, nothing really significant. Please note that I could not test this on x86_64. I don't have the hardware for it. [ jdike - Bits of tidying around the affected code. Also, it's fine on x86_64 ] Signed-off-by: Karol Swietlicki Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/process.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) (limited to 'arch/um/kernel/process.c') diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 91bd68eaba2..62a4e0e12c9 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -81,12 +81,12 @@ static inline void set_current(struct task_struct *task) { external_pid(task), task }); } -extern void arch_switch_to(struct task_struct *from, struct task_struct *to); +extern void arch_switch_to(struct task_struct *to); void *_switch_to(void *prev, void *next, void *last) { struct task_struct *from = prev; - struct task_struct *to= next; + struct task_struct *to = next; to->thread.prev_sched = from; set_current(to); @@ -94,16 +94,15 @@ void *_switch_to(void *prev, void *next, void *last) do { current->thread.saved_task = NULL; - switch_threads(&from->thread.switch_buf, - &to->thread.switch_buf); + switch_threads(&from->thread.switch_buf, &to->thread.switch_buf); - arch_switch_to(current->thread.prev_sched, current); + arch_switch_to(current); if (current->thread.saved_task) show_regs(&(current->thread.regs)); - next= current->thread.saved_task; - prev= current; - } while(current->thread.saved_task); + next = current->thread.saved_task; + prev = current; + } while (current->thread.saved_task); return current->thread.prev_sched; @@ -161,8 +160,6 @@ void new_thread_handler(void) void fork_handler(void) { force_flush_all(); - if (current->thread.prev_sched == NULL) - panic("blech"); schedule_tail(current->thread.prev_sched); @@ -171,7 +168,7 @@ void fork_handler(void) * arch_switch_to isn't needed. We could want to apply this to * improve performance. -bb */ - arch_switch_to(current->thread.prev_sched, current); + arch_switch_to(current); current->thread.prev_sched = NULL; -- cgit v1.2.3-18-g5258