[PATCH] uml: _switch_to code consolidation
This patch moves code that is in both switch_to_tt and switch_to_skas to the top level _switch_to function, keeping us from duplicating code. It is required for the stack trace patch to work properly. Signed-off-by: Allan Graves <allan.graves@gmail.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
committed by
Linus Torvalds
parent
6add9f7f52
commit
f6e34c6af6
@ -26,7 +26,7 @@
|
||||
#include "init.h"
|
||||
#include "tt.h"
|
||||
|
||||
void *switch_to_tt(void *prev, void *next, void *last)
|
||||
int switch_to_tt(void *prev, void *next, void *last)
|
||||
{
|
||||
struct task_struct *from, *to, *prev_sched;
|
||||
unsigned long flags;
|
||||
@ -36,8 +36,6 @@ void *switch_to_tt(void *prev, void *next, void *last)
|
||||
from = prev;
|
||||
to = next;
|
||||
|
||||
to->thread.prev_sched = from;
|
||||
|
||||
cpu = from->thread_info->cpu;
|
||||
if(cpu == 0)
|
||||
forward_interrupts(to->thread.mode.tt.extern_pid);
|
||||
@ -53,7 +51,6 @@ void *switch_to_tt(void *prev, void *next, void *last)
|
||||
forward_pending_sigio(to->thread.mode.tt.extern_pid);
|
||||
|
||||
c = 0;
|
||||
set_current(to);
|
||||
|
||||
err = os_write_file(to->thread.mode.tt.switch_pipe[1], &c, sizeof(c));
|
||||
if(err != sizeof(c))
|
||||
@ -85,8 +82,6 @@ void *switch_to_tt(void *prev, void *next, void *last)
|
||||
|
||||
flush_tlb_all();
|
||||
local_irq_restore(flags);
|
||||
|
||||
return(current->thread.prev_sched);
|
||||
}
|
||||
|
||||
void release_thread_tt(struct task_struct *task)
|
||||
|
Reference in New Issue
Block a user