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authorJeff Dike <jdike@addtoit.com>2007-10-16 01:26:56 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:05 -0700
commit6aa802ce6acc9b1f0b34114b3f7c21c84872cc3a (patch)
tree74523303349693ef482dec4a1d803566b69c6abd /arch/um/kernel/process.c
parent4c9e13851315a25a705e7a686116e491041ca228 (diff)
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 <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 'arch/um/kernel/process.c')
-rw-r--r--arch/um/kernel/process.c19
1 files changed, 7 insertions, 12 deletions
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 005ed44d4a8..22ad46fd2c0 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -45,7 +45,6 @@
#include "os.h"
#include "mode.h"
#include "mode_kern.h"
-#include "choose-mode.h"
/* This is a per-cpu array. A processor only modifies its entry and it only
* cares about its entry, so it's OK if another processor is modifying its
@@ -55,7 +54,7 @@ struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } };
static inline int external_pid(struct task_struct *task)
{
- return CHOOSE_MODE_PROC(external_pid_tt, external_pid_skas, task);
+ return external_pid_skas(task);
}
int pid_to_processor_id(int pid)
@@ -114,8 +113,8 @@ void *_switch_to(void *prev, void *next, void *last)
set_current(to);
do {
- current->thread.saved_task = NULL ;
- CHOOSE_MODE_PROC(switch_to_tt, switch_to_skas, prev, next);
+ current->thread.saved_task = NULL;
+ switch_to_skas(prev, next);
if(current->thread.saved_task)
show_regs(&(current->thread.regs));
next= current->thread.saved_task;
@@ -136,7 +135,7 @@ void interrupt_end(void)
void release_thread(struct task_struct *task)
{
- CHOOSE_MODE(release_thread_tt(task), release_thread_skas(task));
+ release_thread_skas(task);
}
void exit_thread(void)
@@ -155,8 +154,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
int ret;
p->thread = (struct thread_struct) INIT_THREAD;
- ret = CHOOSE_MODE_PROC(copy_thread_tt, copy_thread_skas, nr,
- clone_flags, sp, stack_top, p, regs);
+ ret = copy_thread_skas(nr, clone_flags, sp, stack_top, p, regs);
if (ret || !current->thread.forking)
goto out;
@@ -178,15 +176,12 @@ void initial_thread_cb(void (*proc)(void *), void *arg)
int save_kmalloc_ok = kmalloc_ok;
kmalloc_ok = 0;
- CHOOSE_MODE_PROC(initial_thread_cb_tt, initial_thread_cb_skas, proc,
- arg);
+ initial_thread_cb_skas(proc, arg);
kmalloc_ok = save_kmalloc_ok;
}
void default_idle(void)
{
- CHOOSE_MODE(uml_idle_timer(), (void) 0);
-
while(1){
/* endless idle loop with no priority at all */
@@ -203,7 +198,7 @@ void default_idle(void)
void cpu_idle(void)
{
- CHOOSE_MODE(init_idle_tt(), init_idle_skas());
+ init_idle_skas();
}
void *um_virt_to_phys(struct task_struct *task, unsigned long addr,