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um: Remove unused fields from thread_struct

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These fields are no longer used since the removal of tt mode.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Tiwei Bie 2024-08-26 18:08:11 +08:00 committed by Richard Weinberger
parent 669afa4e87
commit 94090f418f
3 changed files with 11 additions and 21 deletions
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20
arch/um/include/asm/processor-generic.h
View File

@ -28,20 +28,10 @@ struct thread_struct {
struct arch_thread arch;
jmp_buf switch_buf;
struct {
int op;
union {
struct {
int pid;
} fork, exec;
struct {
int (*proc)(void *);
void *arg;
} thread;
struct {
void (*proc)(void *);
void *arg;
} cb;
} u;
struct {
int (*proc)(void *);
void *arg;
} thread;
} request;
};
@ -51,7 +41,7 @@ struct thread_struct {
.fault_addr = NULL, \
.prev_sched = NULL, \
.arch = INIT_ARCH_THREAD, \
.request = { 0 } \
.request = { } \
}
/*

8
arch/um/kernel/process.c
View File

@ -109,8 +109,8 @@ void new_thread_handler(void)
schedule_tail(current->thread.prev_sched);
current->thread.prev_sched = NULL;
fn = current->thread.request.u.thread.proc;
arg = current->thread.request.u.thread.arg;
fn = current->thread.request.thread.proc;
arg = current->thread.request.thread.arg;
/*
* callback returns only if the kernel thread execs a process
@ -158,8 +158,8 @@ int copy_thread(struct task_struct * p, const struct kernel_clone_args *args)
arch_copy_thread(&current->thread.arch, &p->thread.arch);
} else {
get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp);
p->thread.request.u.thread.proc = args->fn;
p->thread.request.u.thread.arg = args->fn_arg;
p->thread.request.thread.proc = args->fn;
p->thread.request.thread.arg = args->fn_arg;
handler = new_thread_handler;
}

4
arch/um/kernel/skas/process.c
View File

@ -39,8 +39,8 @@ int __init start_uml(void)
init_new_thread_signals();
init_task.thread.request.u.thread.proc = start_kernel_proc;
init_task.thread.request.u.thread.arg = NULL;
init_task.thread.request.thread.proc = start_kernel_proc;
init_task.thread.request.thread.arg = NULL;
return start_idle_thread(task_stack_page(&init_task),
&init_task.thread.switch_buf);
}