SPARC32: Pass task_struct to schedule_tail() in ret_from_fork
Hello, Dave.
We have to pass task_struct of previous process to function
schedule_tail(). Currently in ret_from_fork previous thread_info
is passed:
switch_to: mov %g6, %g3 /* previous thread_info in g6 */
ret_from_fork: call schedule_tail
mov %g3, %o0 /* previous thread_info is passed */
void schedule_tail(struct task_struct *prev);
Signed-off-by: Tkhai Kirill <tkhai@xxxxxxxxx>
--- arch/sparc/kernel/entry.S.orig 2011-03-27 22:37:20.000000000 +0400
+++ arch/sparc/kernel/entry.S 2011-03-29 20:52:00.165292813 +0400
@@ -1283,7 +1283,7 @@ linux_syscall_trace:
.globl ret_from_fork
ret_from_fork:
call schedule_tail
- mov %g3, %o0
+ ld [%g3 + TI_TASK], %o0
b ret_sys_call
ld [%sp + STACKFRAME_SZ + PT_I0], %o0
--
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