From 77bf4400319db9d2a8af6b00c2be6faa0f3d07cb Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Tue, 16 Oct 2007 01:26:58 -0700 Subject: uml: remove code made redundant by CHOOSE_MODE removal This patch makes a number of simplifications enabled by the removal of CHOOSE_MODE. There were lots of functions that looked like int foo(args){ foo_skas(args); } The bodies of foo_skas are now folded into foo, and their declarations (and sometimes entire header files) are deleted. In addition, the union uml_pt_regs, which was a union between the tt and skas register formats, is now a struct, with the tt-mode arm of the union being removed. It turns out that usr2_handler was unused, so it is gone. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-um/mmu_context.h | 20 ++++---------------- include/asm-um/processor-generic.h | 16 +++++++--------- include/asm-um/ptrace-generic.h | 4 ++-- include/asm-um/ptrace-i386.h | 17 ----------------- include/asm-um/ptrace-x86_64.h | 13 ++----------- include/asm-um/tlbflush.h | 13 +------------ 6 files changed, 16 insertions(+), 67 deletions(-) (limited to 'include/asm-um') diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h index a4186af65f24..0c4a375000a9 100644 --- a/include/asm-um/mmu_context.h +++ b/include/asm-um/mmu_context.h @@ -29,7 +29,7 @@ static inline void activate_mm(struct mm_struct *old, struct mm_struct *new) * possible. */ if (old != new && (current->flags & PF_BORROWED_MM)) - switch_mm_skas(&new->context.skas.id); + __switch_mm(&new->context.skas.id); } static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, @@ -41,7 +41,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, cpu_clear(cpu, prev->cpu_vm_mask); cpu_set(cpu, next->cpu_vm_mask); if(next != &init_mm) - switch_mm_skas(&next->context.skas.id); + __switch_mm(&next->context.skas.id); } } @@ -50,21 +50,9 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, { } -extern int init_new_context_skas(struct task_struct *task, - struct mm_struct *mm); +extern int init_new_context(struct task_struct *task, struct mm_struct *mm); -static inline int init_new_context(struct task_struct *task, - struct mm_struct *mm) -{ - return(init_new_context_skas(task, mm)); -} - -extern void destroy_context_skas(struct mm_struct *mm); - -static inline void destroy_context(struct mm_struct *mm) -{ - destroy_context_skas(mm); -} +extern void destroy_context(struct mm_struct *mm); #endif diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h index be3ffec3a6a6..126df73f5401 100644 --- a/include/asm-um/processor-generic.h +++ b/include/asm-um/processor-generic.h @@ -32,12 +32,8 @@ struct thread_struct { unsigned long temp_stack; void *exec_buf; struct arch_thread arch; - union { - struct { - jmp_buf switch_buf; - int mm_count; - } skas; - } mode; + jmp_buf switch_buf; + int mm_count; struct { int op; union { @@ -75,7 +71,10 @@ typedef struct { extern struct task_struct *alloc_task_struct(void); -extern void release_thread(struct task_struct *); +static inline void release_thread(struct task_struct *task) +{ +} + extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); static inline void prepare_to_copy(struct task_struct *tsk) @@ -125,8 +124,7 @@ extern struct cpuinfo_um cpu_data[]; #endif -#define KSTK_REG(tsk, reg) \ - get_thread_reg(reg, &tsk->thread.mode.skas.switch_buf) +#define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf) #define get_wchan(p) (0) #endif diff --git a/include/asm-um/ptrace-generic.h b/include/asm-um/ptrace-generic.h index 99c87c5ce994..c8b3e6bf6a43 100644 --- a/include/asm-um/ptrace-generic.h +++ b/include/asm-um/ptrace-generic.h @@ -12,7 +12,7 @@ #include "sysdep/ptrace.h" struct pt_regs { - union uml_pt_regs regs; + struct uml_pt_regs regs; }; #define EMPTY_REGS { .regs = EMPTY_UML_PT_REGS } @@ -44,7 +44,7 @@ extern int set_fpxregs(unsigned long buf, struct task_struct *tsk); extern void show_regs(struct pt_regs *regs); -extern void send_sigtrap(struct task_struct *tsk, union uml_pt_regs *regs, +extern void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs, int error_code); extern int arch_copy_tls(struct task_struct *new); diff --git a/include/asm-um/ptrace-i386.h b/include/asm-um/ptrace-i386.h index 4928a31aca7d..b733fa32b618 100644 --- a/include/asm-um/ptrace-i386.h +++ b/include/asm-um/ptrace-i386.h @@ -46,21 +46,4 @@ extern int ptrace_get_thread_area(struct task_struct *child, int idx, extern int ptrace_set_thread_area(struct task_struct *child, int idx, struct user_desc __user *user_desc); -extern int do_set_thread_area_skas(struct user_desc *info); -extern int do_get_thread_area_skas(struct user_desc *info); - -extern int do_set_thread_area_tt(struct user_desc *info); -extern int do_get_thread_area_tt(struct user_desc *info); - -extern int arch_switch_tls_skas(struct task_struct *from, struct task_struct *to); -extern int arch_switch_tls_tt(struct task_struct *from, struct task_struct *to); - -extern void arch_switch_to_tt(struct task_struct *from, struct task_struct *to); -extern void arch_switch_to_skas(struct task_struct *from, struct task_struct *to); - -extern int do_get_thread_area_skas(struct user_desc *info); -extern int do_set_thread_area_skas(struct user_desc *info); - -struct task_struct; - #endif diff --git a/include/asm-um/ptrace-x86_64.h b/include/asm-um/ptrace-x86_64.h index bf61d17de3f7..4c475350dcf0 100644 --- a/include/asm-um/ptrace-x86_64.h +++ b/include/asm-um/ptrace-x86_64.h @@ -76,15 +76,6 @@ static inline int ptrace_set_thread_area(struct task_struct *child, int idx, return -ENOSYS; } -static inline void arch_switch_to_tt(struct task_struct *from, - struct task_struct *to) -{ -} - -extern void arch_switch_to_skas(struct task_struct *from, - struct task_struct *to); - -extern long arch_prctl_skas(struct task_struct *task, int code, - unsigned long __user *addr); - +extern long arch_prctl(struct task_struct *task, int code, + unsigned long __user *addr); #endif diff --git a/include/asm-um/tlbflush.h b/include/asm-um/tlbflush.h index 1520b083e9db..9d647c55350b 100644 --- a/include/asm-um/tlbflush.h +++ b/include/asm-um/tlbflush.h @@ -24,18 +24,7 @@ extern void flush_tlb_all(void); extern void flush_tlb_mm(struct mm_struct *mm); extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); -extern void flush_tlb_page_skas(struct vm_area_struct *vma, - unsigned long address); - -static inline void flush_tlb_page(struct vm_area_struct *vma, - unsigned long address) -{ - address &= PAGE_MASK; - - flush_tlb_page_skas(vma, address); -} - -extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); +extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long address); extern void flush_tlb_kernel_vm(void); extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); extern void __flush_tlb_one(unsigned long addr); -- cgit v1.2.3