From 42fda66387daa53538ae13a2c858396aaf037158 Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Tue, 16 Oct 2007 01:26:50 -0700 Subject: uml: throw out CONFIG_MODE_TT This patchset throws out tt mode, which has been non-functional for a while. This is done in phases, interspersed with code cleanups on the affected files. The removal is done as follows: remove all code, config options, and files which depend on CONFIG_MODE_TT get rid of the CHOOSE_MODE macro, which decided whether to call tt-mode or skas-mode code, and replace invocations with their skas portions replace all now-trivial procedures with their skas equivalents There are now a bunch of now-redundant pieces of data structures, including mode-specific pieces of the thread structure, pt_regs, and mm_context. These are all replaced with their skas-specific contents. As part of the ongoing style compliance project, I made a style pass over all files that were changed. There are three such patches, one for each phase, covering the files affected by that phase but no later ones. I noticed that we weren't freeing the LDT state associated with a process when it exited, so that's fixed in one of the later patches. The last patch is a tidying patch which I've had for a while, but which caused inexplicable crashes under tt mode. Since that is no longer a problem, this can now go in. This patch: Start getting rid of tt mode support. This patch throws out CONFIG_MODE_TT and all config options, code, and files which depend on it. CONFIG_MODE_SKAS is gone and everything that depends on it is included unconditionally. The few changed lines are in re-written Kconfig help, lines which needed something skas-related removed from them, and a few more which weren't strictly deletions. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-um/mmu_context.h | 6 ------ include/asm-um/processor-generic.h | 14 -------------- 2 files changed, 20 deletions(-) (limited to 'include/asm-um') diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h index 9aa4b44e8cc..92b0a703fb9 100644 --- a/include/asm-um/mmu_context.h +++ b/include/asm-um/mmu_context.h @@ -56,12 +56,6 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, extern int init_new_context_skas(struct task_struct *task, struct mm_struct *mm); -static inline int init_new_context_tt(struct task_struct *task, - struct mm_struct *mm) -{ - return(0); -} - static inline int init_new_context(struct task_struct *task, struct mm_struct *mm) { diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h index d99bbddffdb..70c8183d1db 100644 --- a/include/asm-um/processor-generic.h +++ b/include/asm-um/processor-generic.h @@ -34,20 +34,10 @@ struct thread_struct { void *exec_buf; struct arch_thread arch; union { -#ifdef CONFIG_MODE_TT - struct { - int extern_pid; - int tracing; - int switch_pipe[2]; - int vm_seq; - } tt; -#endif -#ifdef CONFIG_MODE_SKAS struct { jmp_buf switch_buf; int mm_count; } skas; -#endif } mode; struct { int op; @@ -136,12 +126,8 @@ extern struct cpuinfo_um cpu_data[]; #endif -#ifdef CONFIG_MODE_SKAS #define KSTK_REG(tsk, reg) \ get_thread_reg(reg, &tsk->thread.mode.skas.switch_buf) -#else -#define KSTK_REG(tsk, reg) (0xbadbabe) -#endif #define get_wchan(p) (0) #endif -- cgit v1.2.3