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 --- arch/um/sys-x86_64/syscalls.c | 31 ------------------------------- 1 file changed, 31 deletions(-) (limited to 'arch/um/sys-x86_64/syscalls.c') diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index b3f6350cac44..d0ff832c9eaf 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -29,36 +29,6 @@ asmlinkage long sys_uname64(struct new_utsname __user * name) return err ? -EFAULT : 0; } -#ifdef CONFIG_MODE_TT -extern long arch_prctl(int code, unsigned long addr); - -static long arch_prctl_tt(int code, unsigned long addr) -{ - unsigned long tmp; - long ret; - - switch(code){ - case ARCH_SET_GS: - case ARCH_SET_FS: - ret = arch_prctl(code, addr); - break; - case ARCH_GET_FS: - case ARCH_GET_GS: - ret = arch_prctl(code, (unsigned long) &tmp); - if(!ret) - ret = put_user(tmp, (long __user *)addr); - break; - default: - ret = -EINVAL; - break; - } - - return(ret); -} -#endif - -#ifdef CONFIG_MODE_SKAS - long arch_prctl_skas(struct task_struct *task, int code, unsigned long __user *addr) { @@ -119,7 +89,6 @@ long arch_prctl_skas(struct task_struct *task, int code, return ret; } -#endif long sys_arch_prctl(int code, unsigned long addr) { -- cgit v1.2.3