This is a note to let you know that I've just added the patch titled
sparc32: Pass task_struct to schedule_tail() in ret_from_fork
to the 2.6.38-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc32-pass-task_struct-to-schedule_tail-in-ret_from_fork.patch
and it can be found in the queue-2.6.38 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From d4f295b7863f094b4d76ce10cb99f4617b5d00ad Mon Sep 17 00:00:00 2001
From: Tkhai Kirill <[email protected]>
Date: Thu, 31 Mar 2011 00:52:38 -0700
Subject: sparc32: Pass task_struct to schedule_tail() in ret_from_fork
From: Tkhai Kirill <[email protected]>
[ Upstream commit 47c7c97a93a5b8f719093dbf83555090b3b8228b ]
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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/sparc/kernel/entry.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -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
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.38/sparc32-pass-task_struct-to-schedule_tail-in-ret_from_fork.patch
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