diff options
author | Jeff Dike <jdike@addtoit.com> | 2007-10-16 08:26:50 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 16:43:05 (GMT) |
commit | 42fda66387daa53538ae13a2c858396aaf037158 (patch) | |
tree | 77955a91a958fde7be47cb0ff23ac9e1248217db /include/asm-um | |
parent | a1ff5878d2628bbe1e42821c024c96f48318f683 (diff) | |
download | linux-42fda66387daa53538ae13a2c858396aaf037158.tar.xz |
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 <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-um')
-rw-r--r-- | include/asm-um/mmu_context.h | 6 | ||||
-rw-r--r-- | include/asm-um/processor-generic.h | 14 |
2 files changed, 0 insertions, 20 deletions
diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h index 9aa4b44..92b0a70 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 d99bbdd..70c8183 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 |