On Wed, 4 Nov 2020 22:17:42 +1100, Michael Ellerman wrote:
> Andreas reported that commit ee0a49a6870e ("powerpc/uaccess: Switch
> __put_user_size_allowed() to __put_user_asm_goto()") broke
> CLONE_CHILD_SETTID.
>
> Further inspection showed that the put_user() in schedule_tail() was
> missing entirely, the store not emitted by the compiler.
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc: Use asm_goto_volatile for put_user()
https://git.kernel.org/powerpc/c/1344a232016dbb0492be81f8517c4bf8fc1c6610
cheers
