From 6aa802ce6acc9b1f0b34114b3f7c21c84872cc3a Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Tue, 16 Oct 2007 01:26:56 -0700 Subject: uml: throw out CHOOSE_MODE The next stage after removing code which depends on CONFIG_MODE_TT is removing the CHOOSE_MODE abstraction, which provided both compile-time and run-time branching to either tt-mode or skas-mode code. This patch removes choose-mode.h and all inclusions of it, and replaces all CHOOSE_MODE invocations with the skas branch. This leaves a number of trivial functions which will be dealt with in a later patch. There are some changes in the uaccess and tls support which go somewhat beyond this and eliminate some of the now-redundant functions. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-um/a.out.h | 7 ++----- include/asm-um/mmu_context.h | 12 ++++-------- include/asm-um/processor-generic.h | 1 - include/asm-um/ptrace-i386.h | 12 ++---------- include/asm-um/tlbflush.h | 6 +----- include/asm-um/uaccess.h | 2 +- 6 files changed, 10 insertions(+), 30 deletions(-) (limited to 'include/asm-um') diff --git a/include/asm-um/a.out.h b/include/asm-um/a.out.h index 78bc9eed26b..7912f0997cb 100644 --- a/include/asm-um/a.out.h +++ b/include/asm-um/a.out.h @@ -2,7 +2,6 @@ #define __UM_A_OUT_H #include "asm/arch/a.out.h" -#include "choose-mode.h" #undef STACK_TOP #undef STACK_TOP_MAX @@ -13,10 +12,8 @@ extern unsigned long host_task_size; #define STACK_ROOM (stacksizelim) -extern int honeypot; -#define STACK_TOP \ - CHOOSE_MODE((honeypot ? host_task_size : task_size), task_size) +#define STACK_TOP task_size -#define STACK_TOP_MAX STACK_TOP +#define STACK_TOP_MAX STACK_TOP #endif diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h index 92b0a703fb9..a4186af65f2 100644 --- a/include/asm-um/mmu_context.h +++ b/include/asm-um/mmu_context.h @@ -9,7 +9,6 @@ #include #include "linux/sched.h" -#include "choose-mode.h" #include "um_mmu.h" #define get_mmu_context(task) do ; while(0) @@ -30,8 +29,7 @@ static inline void activate_mm(struct mm_struct *old, struct mm_struct *new) * possible. */ if (old != new && (current->flags & PF_BORROWED_MM)) - CHOOSE_MODE(force_flush_all(), - switch_mm_skas(&new->context.skas.id)); + switch_mm_skas(&new->context.skas.id); } static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, @@ -43,8 +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) - CHOOSE_MODE((void) 0, - switch_mm_skas(&next->context.skas.id)); + switch_mm_skas(&next->context.skas.id); } } @@ -59,15 +56,14 @@ extern int init_new_context_skas(struct task_struct *task, static inline int init_new_context(struct task_struct *task, struct mm_struct *mm) { - return(CHOOSE_MODE_PROC(init_new_context_tt, init_new_context_skas, - task, 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) { - CHOOSE_MODE((void) 0, destroy_context_skas(mm)); + destroy_context_skas(mm); } #endif diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h index 70c8183d1db..be3ffec3a6a 100644 --- a/include/asm-um/processor-generic.h +++ b/include/asm-um/processor-generic.h @@ -11,7 +11,6 @@ struct pt_regs; struct task_struct; #include "asm/ptrace.h" -#include "choose-mode.h" #include "registers.h" #include "sysdep/archsetjmp.h" diff --git a/include/asm-um/ptrace-i386.h b/include/asm-um/ptrace-i386.h index 6e2528bb008..4928a31aca7 100644 --- a/include/asm-um/ptrace-i386.h +++ b/include/asm-um/ptrace-i386.h @@ -12,7 +12,6 @@ #include "sysdep/ptrace.h" #include "asm/ptrace-generic.h" #include "asm/host_ldt.h" -#include "choose-mode.h" #define PT_REGS_EAX(r) UPT_EAX(&(r)->regs) #define PT_REGS_EBX(r) UPT_EBX(&(r)->regs) @@ -59,15 +58,8 @@ 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); -static inline int do_get_thread_area(struct user_desc *info) -{ - return CHOOSE_MODE_PROC(do_get_thread_area_tt, do_get_thread_area_skas, info); -} - -static inline int do_set_thread_area(struct user_desc *info) -{ - return CHOOSE_MODE_PROC(do_set_thread_area_tt, do_set_thread_area_skas, info); -} +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; diff --git a/include/asm-um/tlbflush.h b/include/asm-um/tlbflush.h index e78c28c1f35..7912e18d93e 100644 --- a/include/asm-um/tlbflush.h +++ b/include/asm-um/tlbflush.h @@ -7,7 +7,6 @@ #define __UM_TLBFLUSH_H #include -#include "choose-mode.h" /* * TLB flushing: @@ -31,10 +30,7 @@ extern void flush_tlb_page_skas(struct vm_area_struct *vma, static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long address) { - address &= PAGE_MASK; - - CHOOSE_MODE(flush_tlb_range(vma, address, address + PAGE_SIZE), - flush_tlb_page_skas(vma, address)); + flush_tlb_page_skas(vma, address & PAGE_MASK); } extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h index 16c734af919..077032d4fc4 100644 --- a/include/asm-um/uaccess.h +++ b/include/asm-um/uaccess.h @@ -80,7 +80,7 @@ __put_user(x, private_ptr) : -EFAULT); \ }) -#define strlen_user(str) strnlen_user(str, ~0UL >> 1) +#define strlen_user(str) strnlen_user(str, ~0U >> 1) struct exception_table_entry { -- cgit v1.2.3-70-g09d2